xref: /titanic_51/usr/src/lib/libshell/common/RELEASE (revision 3e14f97f673e8a630f076077de35afdd43dc1587)
1*3e14f97fSRoger A. Faulkner10-03-05  --- Release ksh93t+  ---
2*3e14f97fSRoger A. Faulkner10-03-05  A varibale unset memory leak has been fixed and tests/leaks.sh
3*3e14f97fSRoger A. Faulkner	  has been added to verify the fix.
4*3e14f97fSRoger A. Faulkner10-03-04  Documentation, comment, and disgnostic spelling typos corrected.
5*3e14f97fSRoger A. Faulkner10-02-14  Fix sh_getenv() initialization to cooperate with the 3d fs.
6*3e14f97fSRoger A. Faulkner10-02-12  A bug in which the get discipline function was not invoked for
7*3e14f97fSRoger A. Faulkner	  associative array subscripts for unset array elements has been fixed.
8*3e14f97fSRoger A. Faulkner10-02-12  A bug which could occur if the last line of a script was an eval
9*3e14f97fSRoger A. Faulkner	  that executed multiple commands has been fixed.
10*3e14f97fSRoger A. Faulkner10-02-02  A buffer overflow in read and another in binary type base64
11*3e14f97fSRoger A. Faulkner	  encoding were fixed.
12*3e14f97fSRoger A. Faulkner10-01-20  A bug in the evaluation of arithmetic expression in which the
13*3e14f97fSRoger A. Faulkner	  subscript was evaluated twice for $((foo[x++]++)) has been fixed.
14*3e14f97fSRoger A. Faulkner10-01-19  A workaround for a double-free of a trap in both a subshell and its
15*3e14f97fSRoger A. Faulkner	  parent has been added.
16*3e14f97fSRoger A. Faulkner10-01-18  A bug in type handling of typeset -H has been fixed.
17*3e14f97fSRoger A. Faulkner10-01-15  The "adding empty subscript" warning now only emitted with -x set.
18*3e14f97fSRoger A. Faulkner10-01-01  A bug in the parser in which '$((case i in i):;esac);:))' was not
19*3e14f97fSRoger A. Faulkner	  parsed correctly was fixed.
20*3e14f97fSRoger A. Faulkner10-01-01  A bug in the parser in which '$(( 2 , 3.6 ))' dumped core for locales
21*3e14f97fSRoger A. Faulkner	  with radix char , and thousands separator . has been fixed.
22*3e14f97fSRoger A. Faulkner09-12-28  A bug in the handling of SIGCLD on systems that generated SIGCLD
23*3e14f97fSRoger A. Faulkner	  while blocked waiting for process to complete has been fixed.
24*3e14f97fSRoger A. Faulkner09-12-24  ast setlocale() reworked to differentiate env var changes from user
25*3e14f97fSRoger A. Faulkner	  override.
26*3e14f97fSRoger A. Faulkner09-12-18  A bug with the SHOPT_BGX option set which disabled traps for signals
27*3e14f97fSRoger A. Faulkner	  < SIGCHLD when a trap for a signal > SIGCHLD was set has been fixed.
28*3e14f97fSRoger A. Faulkner09-12-18  A bug where [[ -v var ]] was incorrect for some variables (including
29*3e14f97fSRoger A. Faulkner	  LC_* vars) has been fixed.
30*3e14f97fSRoger A. Faulkner09-12-15  A bug that produced a syntax error when a multibyte character
31*3e14f97fSRoger A. Faulkner	  straddled a buffer boundary has been fixed.
32*3e14f97fSRoger A. Faulkner09-12-11  A bug where the subscript of an unset variable was not evaluated has
33*3e14f97fSRoger A. Faulkner	  been fixed.
34*3e14f97fSRoger A. Faulkner09-12-09  A bug where shcomp dumped core on certain syntax errors has been fixed.
35*3e14f97fSRoger A. Faulkner09-12-07  A bug where a parent shell environment var reset in a subshell removed
36*3e14f97fSRoger A. Faulkner	  the value in subsequent children of the parent shell has been fixed.
37*3e14f97fSRoger A. Faulkner09-12-04  A bug in which in some cases a trap in a function executed in
38*3e14f97fSRoger A. Faulkner	  a subshell could trigger twice has been fixed.
39*3e14f97fSRoger A. Faulkner09-12-03  A bug in which SHLVL exported with some attributes could cause
40*3e14f97fSRoger A. Faulkner	  the shell to abort at startup has been fixed.
41*3e14f97fSRoger A. Faulkner09-12-02  A bug with pipefail in which the shell could hang waiting for the
42*3e14f97fSRoger A. Faulkner	  writer to complete before the last reader command has been fixed.
43*3e14f97fSRoger A. Faulkner09-11-30  A bug in which a trap could be inherited by the first element of
44*3e14f97fSRoger A. Faulkner	  a pipeline when the command had more than 63 arguments that did
45*3e14f97fSRoger A. Faulkner	  not contain any macro expansions has been fixed.
46*3e14f97fSRoger A. Faulkner09-11-19  When read from a terminal was called from with a while or foo loop,
47*3e14f97fSRoger A. Faulkner	  and an edit mode was on, a backspace or erase no longer will
48*3e14f97fSRoger A. Faulkner	  overwrite the prompt.
49*3e14f97fSRoger A. Faulkner09-11-17  Change .paths parse to handle BUILTIN_LIB=foo BUILTIN_LIB=foo-1.2.
50*3e14f97fSRoger A. Faulkner09-11-17  Inside a function, typeset foo.bar will bind foo to global variable
51*3e14f97fSRoger A. Faulkner	  foo if local variable foo does not exist, instead of creating a
52*3e14f97fSRoger A. Faulkner	  local variable.
53*3e14f97fSRoger A. Faulkner09-11-17  "read -n1" from the terminal has been fixed to read exactly one character.
54*3e14f97fSRoger A. Faulkner09-11-11  Job control now works for subshell commands, (...).
55*3e14f97fSRoger A. Faulkner09-11-11  If set -e is on for an interactive shell errors in special builtins
56*3e14f97fSRoger A. Faulkner	  now cause the shell to exit.
57*3e14f97fSRoger A. Faulkner09-11-11  A bug in which an interrupt handler processed during the read builtin
58*3e14f97fSRoger A. Faulkner	  when IFS did not contain a new line has been fixed.
59*3e14f97fSRoger A. Faulkner09-11-09  A bug in which a variable that has been unset in a subshell and then
60*3e14f97fSRoger A. Faulkner	  exported from that subshell does not show up in the environment
61*3e14f97fSRoger A. Faulkner	  has been fixed.
62*3e14f97fSRoger A. Faulkner09-11-02  ``,2'' is now a valid numeric constant for locales with
63*3e14f97fSRoger A. Faulkner	  decimal_point=','.
64*3e14f97fSRoger A. Faulkner09-11-02  A bug where "return" in .profile did not restore the shell state
65*3e14f97fSRoger A. Faulkner	  has been fixed.
66*3e14f97fSRoger A. Faulkner09-10-31  A bug that corrupted saved exit status when pids wrapped around has
67*3e14f97fSRoger A. Faulkner	  been fixed.
68*3e14f97fSRoger A. Faulkner09-10-26  A bug in { LANG LC_ALL LC_category } ordering has been fixed in -last.
69*3e14f97fSRoger A. Faulkner09-10-16  A bug where notification to libast that the environment has changed
70*3e14f97fSRoger A. Faulkner          has been fixed.
7134f9b3eeSRoland Mainz09-10-12  A bug in which a function loaded in a subshell could leave side
7234f9b3eeSRoland Mainz	  effects in the parent shell has been fixed.
7334f9b3eeSRoland Mainz09-10-12  A bug in converting a printf %d operand to a number when the operand
7434f9b3eeSRoland Mainz	  contains multiple subscripts for the same variable has been fixed.
7534f9b3eeSRoland Mainz09-10-09  A bug in the handling of the escape character \ in directory prefixes
7634f9b3eeSRoland Mainz	  in command completion has been fixed.
7734f9b3eeSRoland Mainz09-10-09  $PATH processing has been changed to delay dir stat() and .paths
7834f9b3eeSRoland Mainz	  lookup until the directory is needed in the path search.
7934f9b3eeSRoland Mainz09-09-28  Call the ast setlocale() intercept on unset too.
8034f9b3eeSRoland Mainz09-09-24  A bug in which LANG=foo; LC_ALL=foo; unset LC_ALL; did not revert
8134f9b3eeSRoland Mainz	  LC_CTYPE etc. to the LANG value has been fixed.
8234f9b3eeSRoland Mainz09-09-17  A bug in which unsetting SVLVL could cause a script invoked by
8334f9b3eeSRoland Mainz	  name without #! to core dump has been fixed.
8434f9b3eeSRoland Mainz09-09-16  A bug in which a pipeline in a here-document could hang when the
8534f9b3eeSRoland Mainz	  pipefail option was on has been fixed.
8634f9b3eeSRoland Mainz09-09-09  A bug in the processing of line joining in here documents which
8734f9b3eeSRoland Mainz	  occurred when a buffer began with <escape><new-line> has been fixed.
8834f9b3eeSRoland Mainz09-09-09  A leading ; with commands in a brace group or parenthesis group
8934f9b3eeSRoland Mainz	  no longer causes an error.  It now is used for the "showme" option.
9034f9b3eeSRoland Mainz09-09-09  A bug in which a subshell containing a background process could
9134f9b3eeSRoland Mainz	  block until the background process completed has been fixed.
9234f9b3eeSRoland Mainz09-09-04  A bug in handing ${var[sub]}, where var is a nameref has been fixed.
9334f9b3eeSRoland Mainz09-09-03  A bug which caused an index array to have the wrong number of elements
9434f9b3eeSRoland Mainz	  when it was converted from a compound variable by adding an another
9534f9b3eeSRoland Mainz	  element has been fixed.
9634f9b3eeSRoland Mainz09-09-03  Specifying export for a compound variable now generates an error.
9734f9b3eeSRoland Mainz09-09-02  $"..." localizations strings are no longer recognized inside `...`.
9834f9b3eeSRoland Mainz09-09-01  A bug in the for loop optimizer in the handling of type static
9934f9b3eeSRoland Mainz	  variables has been fixed.
10034f9b3eeSRoland Mainz09-09-01  An error message is not displayed when * and @ are used as subscripts.
10134f9b3eeSRoland Mainz09-09-01  Several bugs in the processing for types that included an associative
10234f9b3eeSRoland Mainz	  array of another type has been fixed.
10334f9b3eeSRoland Mainz09-09-01  A bug in the tracing of [[ a < b ]] and [[ a > b ]] has been fixed.
10434f9b3eeSRoland Mainz09-08-26  The .sh.file variable was not being set for a script that was run
10534f9b3eeSRoland Mainz	  by name and didn't start with #! and this has been fixed.
10634f9b3eeSRoland Mainz09-08-25  A bug in which a function called to deeply from command substitution
10734f9b3eeSRoland Mainz	  did not display an error message has been fixed.
10834f9b3eeSRoland Mainz09-08-24  When processing profiles, ksh93 now violates the POSIX standard and
10934f9b3eeSRoland Mainz	  treats &> as a redirection operator similar to bash.
110*3e14f97fSRoger A. Faulkner09-08-23  A bug in the handling of the trap on SIGPIPE that could lead to a
11134f9b3eeSRoland Mainz	  memory fault has been fixed.
11234f9b3eeSRoland Mainz09-08-21  A bug in the handling of the comma operator in arithmetic expressions
11334f9b3eeSRoland Mainz	  that could cause a core dump on some systems has been fixed.
11434f9b3eeSRoland Mainz09-08-20  A bug in which a compound variable containing an array of a type
11534f9b3eeSRoland Mainz	  that doesn't have any elements now expands correctly.
11634f9b3eeSRoland Mainz09-08-19  A bug which disabled function tracing inside a function after
11734f9b3eeSRoland Mainz	  a call to another function has been fixed.
11834f9b3eeSRoland Mainz09-08-19  A bug in which initializing a compound variable instance to another
11934f9b3eeSRoland Mainz	  compound variable by name has been fixed.
12034f9b3eeSRoland Mainz09-08-18  A bug in which compound variable instances could be lost after
12134f9b3eeSRoland Mainz	  an instance that invoked a type method discipline has been fixed.
12234f9b3eeSRoland Mainz09-08-18  A bug in which a discipline function for a type applied to an
12334f9b3eeSRoland Mainz	  array instance when invoked in a function ignored the subscript
12434f9b3eeSRoland Mainz	  has been fixed.
12534f9b3eeSRoland Mainz09-08-18  A scoping error with variables in arithmetic expression with
12634f9b3eeSRoland Mainz	  type variables when reference with a name reference has been fixed.
12734f9b3eeSRoland Mainz09-08-10  Several memory leaks were fixed primarily related to subshells.
12834f9b3eeSRoland Mainz09-08-06  A bug in which setting the trap on CHLD to ignore could cause
12934f9b3eeSRoland Mainz	  a script to hang has been fixed.
13034f9b3eeSRoland Mainz09-07-08  A bug in the processing of name reference assignments when it
13134f9b3eeSRoland Mainz	  contained pattern expansions with quoting has been fixed.
13234f9b3eeSRoland Mainz09-06-22  The default width for typeset -X has been changed so that there
13334f9b3eeSRoland Mainz	  should be no loss of precision when converting to a string.
13434f9b3eeSRoland Mainz09-06-19  A bug in the printing of array elements for binary variables with
13534f9b3eeSRoland Mainz	  printf %B has been fixed.
13634f9b3eeSRoland Mainz09-06-19  A bug which caused a core dump with trap DEBUG set with an array
13734f9b3eeSRoland Mainz	  assignment with no elements has been fixed.
13834f9b3eeSRoland Mainz09-06-19  A bug with read with typeset -b -Z<num> has been fixed.
13934f9b3eeSRoland Mainz09-06-19  Two bugs related to read -b for array variables has been fixed.
14034f9b3eeSRoland Mainz09-06-19  A bug with typeset for compound variables containing arrays of
14134f9b3eeSRoland Mainz	  compound variables has been fixed.
14234f9b3eeSRoland Mainz09-06-18  A bug in appending a compound variable to a an indexed array of
14334f9b3eeSRoland Mainz	  compound variables has been fixed.
14434f9b3eeSRoland Mainz09-06-18  A bug which occurs when appending a compound variable to an indexed
14534f9b3eeSRoland Mainz	  array element has been fixed.
14634f9b3eeSRoland Mainz09-06-18  Setting VISUAL to a value other than one ending in vi or emacs will
14734f9b3eeSRoland Mainz	  no longer unset the edit mode.
14834f9b3eeSRoland Mainz09-06-17  A bug in typeset -m when moving a local compound variable to a
14934f9b3eeSRoland Mainz	  global compound variable via a name reference has been fixed.
15034f9b3eeSRoland Mainz09-06-17  A bug in appending to nodes of an array of compound variables when
15134f9b3eeSRoland Mainz	  addressing them via nameref has been fixed.
15234f9b3eeSRoland Mainz09-06-17  A bug in typeset -p var, when var is an array of compound variables
15334f9b3eeSRoland Mainz	  in which the output only contained on array element has been fixed.
15434f9b3eeSRoland Mainz09-06-17  The prefix expansion ${!y.@} now works when y is a name
15534f9b3eeSRoland Mainz	  reference to an element of an array.
15634f9b3eeSRoland Mainz09-06-16  Traps on signals that are ignored when the shell is invoked
15734f9b3eeSRoland Mainz	  no longer display.  Previously they were ignored as required but
15834f9b3eeSRoland Mainz	  would be listed with trap -p.
15934f9b3eeSRoland Mainz09-06-12  A bug in vi edit mode in which hitting the up arrow key at the
16034f9b3eeSRoland Mainz	  end of a line longer than 40 characters which caused a core dump
16134f9b3eeSRoland Mainz	  has been fixed.
16234f9b3eeSRoland Mainz09-06-11  A bug in which "eval non-builtin &" would create two processes,
16334f9b3eeSRoland Mainz	  one for the & and another for non-builtin has been fixed.
16434f9b3eeSRoland Mainz09-06-08  When var is an identifier and is unset, ${var} no longer tries to
16534f9b3eeSRoland Mainz	  run command substitution on the command var.
16634f9b3eeSRoland Mainz09-06-08  Process substitution arguments of the form <(command) can now be
16734f9b3eeSRoland Mainz	  used following the < redirection operator to redirect from command.
16834f9b3eeSRoland Mainz09-05-13  A bug in which redirections of the form 2>&1 1>&5 inside command
16934f9b3eeSRoland Mainz	  substitution could cause the command substitution to hang has been
17034f9b3eeSRoland Mainz	  fixed.
17134f9b3eeSRoland Mainz09-05-12  To conform with POSIX, the -u option only checks for unset variables
17234f9b3eeSRoland Mainz	  and subscript elements rather than checking for all parameters.
17334f9b3eeSRoland Mainz09-05-12  A bug which could cause a core dump when a variable whose name
17434f9b3eeSRoland Mainz	  begins with a . was referenced as part of a name reference inside
17534f9b3eeSRoland Mainz	  a function has been fixed.
17634f9b3eeSRoland Mainz09-05-01  A bug that caused a core dump when SIGWINCH was received and
17734f9b3eeSRoland Mainz	  both vi and emacs mode were off has been fixed.
17834f9b3eeSRoland Mainz09-04-22  Default alias compound='typeset -C' added.
179*3e14f97fSRoger A. Faulkner09-04-15  A bug that caused ${...;} to hang for large files has been fixed.
18034f9b3eeSRoland Mainz09-04-08  A change was made in the -n option which printed out an incorrect
18134f9b3eeSRoland Mainz	  warning with <>.
18234f9b3eeSRoland Mainz09-04-07  The emacs edit command M-_ and M_. and the vi command _ was fixed
18334f9b3eeSRoland Mainz	  to handle the case there there is no history file.
18434f9b3eeSRoland Mainz09-04-05  A bug in handling new-lines with read -n has been fixed.
18534f9b3eeSRoland Mainz09-04-05  The ENV variable defaults the the file named by $HOME/.kshrc rather
18634f9b3eeSRoland Mainz	  then to the string $HOME/.kshrc.
18734f9b3eeSRoland Mainz09-03-31  A bug in which a nested command substitution with redirections could
18834f9b3eeSRoland Mainz	  leave a file descriptor open has been fixed.
18934f9b3eeSRoland Mainz09-03-24  ksh now only uses the value of the _ variable on startup if it can
19034f9b3eeSRoland Mainz	  verify that it was set by the invoking process rather than being
19134f9b3eeSRoland Mainz	  inherited by some other ancestor.
19234f9b3eeSRoland Mainz09-03-24  When ksh is invoked without -p and ruid!=euid, and the shell is
19334f9b3eeSRoland Mainz	  compiled without SHOPT_P_UID or ruid<SHOPT_P_UID, the shell now
19434f9b3eeSRoland Mainz	  enables the -p option.  The previous version instead set the
19534f9b3eeSRoland Mainz	  euid to the ruid as it does for set +p.
19634f9b3eeSRoland Mainz09-03-24  When SHOPT_P_UID is defined at compile time and the shell is started
19734f9b3eeSRoland Mainz	  without -p and ruid!=euid and ruid>=SHOPT_P_UID then euid is set
19834f9b3eeSRoland Mainz	  to ruid. A bug that did the wrong test (ruid<SHOPT_P_UID) was fixed.
19934f9b3eeSRoland Mainz09-03-17  The sleep(1) builtin now accept and ISO 8601 PnYnMnDTnHnMnS
20034f9b3eeSRoland Mainz	  duration or date(1) compatible date/time operand.
20134f9b3eeSRoland Mainz09-03-10  If a variable that was left or right justified or zero-filled was
20234f9b3eeSRoland Mainz	  changed with a typeset statement that was left or right justified
20334f9b3eeSRoland Mainz	  or zero-filled, then the original justification no longer affects
20434f9b3eeSRoland Mainz	  the result.
20534f9b3eeSRoland Mainz09-03-10  A bug in the handling of traps when the last command in a script
20634f9b3eeSRoland Mainz	  is a subshell grouping command has been fixed.
20734f9b3eeSRoland Mainz09-03-03  A bug in which an expansion of the form ${!prefix@} could generate
20834f9b3eeSRoland Mainz	  an exception after the return from a function has been fixed.
20934f9b3eeSRoland Mainz09-02-02  A bug in restricted mode in which the value of ENV could be
21034f9b3eeSRoland Mainz	  changed from within a function has been fixed.
21134f9b3eeSRoland Mainz09-02-02  A bug in which an erroneous message indicating that a process
21234f9b3eeSRoland Mainz	  terminated with a coredump has been fixed.
21334f9b3eeSRoland Mainz09-02-02  The exit status when exit was called without an argument from
21434f9b3eeSRoland Mainz	  a signal handler was incorrect and has been fixed.
21534f9b3eeSRoland Mainz09-02-02  A bug in which a function autoloaded in a subshell could cause
21634f9b3eeSRoland Mainz	  a core dump when the subshell completed has been fixed.
21734f9b3eeSRoland Mainz09-02-02  A bug in which 2>&1 inside a command substitution wasn't working
21834f9b3eeSRoland Mainz	  correctly has been fixed.
21934f9b3eeSRoland Mainz09-02-02  A bug in the call stack of arithmetic function with 2 args
22034f9b3eeSRoland Mainz	  returning int has been fixed.
22134f9b3eeSRoland Mainz09-01-30  A bug in which 'eval print \$0' inside a function was giving the
22234f9b3eeSRoland Mainz	  wrong value for $0 has been fixed.
22334f9b3eeSRoland Mainz09-01-28  A bug in which a command substitution could return an exit status
22434f9b3eeSRoland Mainz	  of 127 when the pipefail option is enabled has been fixed.
22534f9b3eeSRoland Mainz09-01-26  ksh93 now generates an error message if you attempt to create
22634f9b3eeSRoland Mainz	  a global name reference to a local variable.
22734f9b3eeSRoland Mainz09-01-26  The [[ -v var ]] operator was modified to test for array elements.
22834f9b3eeSRoland Mainz09-01-23  The redirection operator <>; was added.  It is similar to <>
22934f9b3eeSRoland Mainz	  except that if the command it is applied to succeeds, the file
23034f9b3eeSRoland Mainz	  is truncated to the offset at the command completion.
23134f9b3eeSRoland Mainz09-01-23  The default file descriptor for <> was changed to 1.
23234f9b3eeSRoland Mainz09-01-20  A bug in which the exit status specified in an exit trap was
23334f9b3eeSRoland Mainz	  not used when a process terminated with a signal has been fixed.
23434f9b3eeSRoland Mainz09-01-19  A bug in which a signal whose default action is to terminate
23534f9b3eeSRoland Mainz	  a process could be ignored when the process is running a sub-shell
23634f9b3eeSRoland Mainz	  has been fixed.
23734f9b3eeSRoland Mainz09-01-19  A bug in which sending SIGWINCH to a process that reads from a pipe
23834f9b3eeSRoland Mainz	  could cause a memory fault has been fixed.
23934f9b3eeSRoland Mainz09-01-16  The -R unary operator was added to [[...]] and test to check whether
24034f9b3eeSRoland Mainz	  a variable is a  name reference.
24134f9b3eeSRoland Mainz09-01-16  The -v unary operator was added to [[...]] and test to check whether
24234f9b3eeSRoland Mainz	  a variable is set.
24334f9b3eeSRoland Mainz09-01-14  The unset built-in was modified to return 0 exit status when
24434f9b3eeSRoland Mainz	  unsetting a variable that was unset to conform with the POSIX
24534f9b3eeSRoland Mainz	  standard.
24634f9b3eeSRoland Mainz09-01-14  The unset built-in was modified to continue to unset variables
24734f9b3eeSRoland Mainz	  after encountering a variable that it could not unset to
24834f9b3eeSRoland Mainz	  conform to the POSIX standard.
24934f9b3eeSRoland Mainz09-01-14  The parameter expansion ${x+value} no longer expands the value of
25034f9b3eeSRoland Mainz	  the variable x when determining whether x is set or not.
25134f9b3eeSRoland Mainz09-01-13  A bug in which background jobs and pipelines that were not waited
25234f9b3eeSRoland Mainz	  for could, in rare instances, cause the shell to go into an infinite
25334f9b3eeSRoland Mainz	  loop or fail has been fixed.
25434f9b3eeSRoland Mainz09-01-06  A bug in indexed arrays of compound variables in which referencing
25534f9b3eeSRoland Mainz	  non-existent sub-variable in an arithmetic expression could cause
25634f9b3eeSRoland Mainz	  the sub-variable to be created has been fixed.
25734f9b3eeSRoland Mainz09-01-05  A bug in which the \ character did not escape extended regular
25834f9b3eeSRoland Mainz	  expression pattern characters has been fixed.
25934f9b3eeSRoland Mainz08-12-24  A bug in which killing the last element of a pipe did not cause
26034f9b3eeSRoland Mainz	  a write to the pipe to generate a SIGPIPE has been fixed.
26134f9b3eeSRoland Mainz08-12-19  A bug which could cause command substitution to hang when the
26234f9b3eeSRoland Mainz	  last element of a pipeline in a command substitution was a built-in
26334f9b3eeSRoland Mainz	  and the output was more that PIPE_BUFF.
26434f9b3eeSRoland Mainz08-12-18  A bug which occurs when a here documented marker embedded in a
26534f9b3eeSRoland Mainz	  command substitution occurs on a buffer boundary has been fixed.
26634f9b3eeSRoland Mainz08-12-17  A bug in the output of typeset -p for variables that had attributes
26734f9b3eeSRoland Mainz	  but did not have a value has been fixed.
26834f9b3eeSRoland Mainz08-12-16  A bug in which a name reference to a name reference variable that
26934f9b3eeSRoland Mainz	  references an array element has been fixed.
27034f9b3eeSRoland Mainz08-12-16  A bug in which a variable given both the -A and -C attribute along
27134f9b3eeSRoland Mainz	  with an initial assignment didn't work correctly has been fixed.
27234f9b3eeSRoland Mainz08-12-10  The [[ -t fd ]] test was fixed to handle fd>9.
27334f9b3eeSRoland Mainz08-12-10  A bug where function stack misalignment could cause a bus error
27434f9b3eeSRoland Mainz	  has been fixed.
27534f9b3eeSRoland Mainz08-12-09  Command completion was changed to use \ to quote special characters
27634f9b3eeSRoland Mainz	  instead of quoting the argument in single quotes.
27734f9b3eeSRoland Mainz08-12-07  A bug in typeset -m which occurred when the target node was an
27834f9b3eeSRoland Mainz	  associative array element has been fixed.
27934f9b3eeSRoland Mainz08-12-07  A timing bug on some systems (for example darwin), that could
28034f9b3eeSRoland Mainz	  cause the last process of a pipeline entered interactively to fail
28134f9b3eeSRoland Mainz	  with an "Exec format error" has been fixed.
28234f9b3eeSRoland Mainz08-12-04  SHOPT_BGX enables background job extensions. Noted by "J" in
28334f9b3eeSRoland Mainz	  the version string when enabled. (1) JOBMAX=n limits the number
28434f9b3eeSRoland Mainz	  of concurrent & jobs to n; the n+1 & job will block until a
28534f9b3eeSRoland Mainz	  running background job completes. (2) SIGCHLD traps are queued
28634f9b3eeSRoland Mainz	  so that each completing background job gets its own trap; $! is
28734f9b3eeSRoland Mainz	  set to the job pid and $? is set to the job exit status at the
28834f9b3eeSRoland Mainz	  beginning of the trap. (3) sleep -s added to sleep until the time
28934f9b3eeSRoland Mainz	  expires or until a signal is delivered.
29034f9b3eeSRoland Mainz08-12-04  The sign of floating point zero is preserved across arithmetic
29134f9b3eeSRoland Mainz	  function calls.
29234f9b3eeSRoland Mainz08-12-04  A bug that caused print(1) to produce garbled stdout/stderr
29334f9b3eeSRoland Mainz	  output has been fixed.
29434f9b3eeSRoland Mainz08-12-04  A bug in which printf "%d\n" "'<euro>'" did not output the
29534f9b3eeSRoland Mainz          numerical value of the EURO symbol, 8354, has been fixed.
29634f9b3eeSRoland Mainz08-11-24  /dev/fd* and /dev/std* redirections are first attempted with
29734f9b3eeSRoland Mainz	  open() to preserve seek semantics; failing that the corresponding
29834f9b3eeSRoland Mainz	  file descriptors are dup()'d.
29934f9b3eeSRoland Mainz08-11-20  A bug which could cause a core dump if a function compiled with
30034f9b3eeSRoland Mainz	  shcomp was found has been fixed.
30134f9b3eeSRoland Mainz08-11-20  A bug in which jobs were not cleared from the jobs table for
30234f9b3eeSRoland Mainz	  interactive shells when the pipefail option is on has been fixed.
30334f9b3eeSRoland Mainz08-11-11  A bug in which a field that was unset in a type definition and later
30434f9b3eeSRoland Mainz	  set for an instance could appear twice when displaying the variable
30534f9b3eeSRoland Mainz	  has been fixed.
30634f9b3eeSRoland Mainz08-11-11  A bug in which running a simple command & inside a function would
30734f9b3eeSRoland Mainz	  not return the correct process id has been fixed.
30834f9b3eeSRoland Mainz08=11-10  A bug in which the exit status of a command could be lost if the pid
30934f9b3eeSRoland Mainz	  was that of the most recent command substitution that had completed
31034f9b3eeSRoland Mainz	  has been fixed.
31134f9b3eeSRoland Mainz08-11-10  The maximum depth for subshells has been increased from 256 to 65536.
31234f9b3eeSRoland Mainz08-11-06  A bug which could cause a core dump when the _ reference variable was
31334f9b3eeSRoland Mainz          used as an embedded type with a compound assignment has been fixed.
31434f9b3eeSRoland Mainz
3157c2fbfb3SApril Chin08-10-31  --- Release ksh93t  ---
3167c2fbfb3SApril Chin08-10-31  Variable scoping/initialization bugs that could dump core were fixed.
3177c2fbfb3SApril Chin08-10-24  The lexer now accepts all RE characters for patterns prefixed
3187c2fbfb3SApril Chin	  with a ksh ~(...) option expression.
3197c2fbfb3SApril Chin08-10-24  For ${var/pat/sub} \0 in sub expands to the text matched by pat.
3207c2fbfb3SApril Chin08-10-18  A bug in array scoping that could dump core has been fixed.
3217c2fbfb3SApril Chin08-10-10  read -n and -N fixed to count characters in multibyte locales.
3227c2fbfb3SApril Chin08-10-10  A bug that mishandled _.array[] type references has been fixed.
32334f9b3eeSRoland Mainz08-10-09  ${.sh.version} now contains a concatenation of the following (after
3247c2fbfb3SApril Chin	  'Version') denoting compile time features:
3257c2fbfb3SApril Chin		A	SHOPT_AUDIT
3267c2fbfb3SApril Chin		B	SHOPT_BASH
3277c2fbfb3SApril Chin		L	SHOPT_ACCT
3287c2fbfb3SApril Chin		M	SHOPT_MULTIBYTE
3297c2fbfb3SApril Chin08-10-09  A bug that caused subshell command substitution with redirection
3307c2fbfb3SApril Chin	  to hang has been fixed.
3317c2fbfb3SApril Chin08-10-08  Output errors, other than to stderr, now result in a diagnostic.
3327c2fbfb3SApril Chin08-10-08  ksh93 now supports types that contain arrays of other types as
3337c2fbfb3SApril Chin	  members.  Earlier versions core dumped in this case.
3347c2fbfb3SApril Chin08-10-05  A bug which caused the shell to emit a syntax error for an arithmetic
3357c2fbfb3SApril Chin	  statement of the form (( var.name[sub] = value)) has been fixed.
3367c2fbfb3SApril Chin08-10-01  A bug that caused subshell command substitution to hang has
3377c2fbfb3SApril Chin	  been fixed.
3387c2fbfb3SApril Chin08-09-29  When the -p export option of typeset is used with other options,
3397c2fbfb3SApril Chin	  only those variables matching the specified options are displayed.
3407c2fbfb3SApril Chin08-09-29  When the shell reads the environment and finds variables that are
3417c2fbfb3SApril Chin	  not valid shell assignments, it now passes these on to subsequent
3427c2fbfb3SApril Chin	  commands rather than deleting them.
3437c2fbfb3SApril Chin08-09-29  A bug in the display of compound variables containing an indexed
3447c2fbfb3SApril Chin	  array of compound variables has been fixed.
3457c2fbfb3SApril Chin08-09-29  A bug in the display of compound variables containing an associative
3467c2fbfb3SApril Chin	  array with a subscript containing a . in the name has been fixed.
3477c2fbfb3SApril Chin08-09-26  A core dump in the subshell environment restore has been fixed.
3487c2fbfb3SApril Chin08-09-24  $(...) has been fixed to properly set the exit status in $?.
3497c2fbfb3SApril Chin08-09-23  $(<...) with IFS=$'\n\n' has been fixed to retain all but the last
3507c2fbfb3SApril Chin	  of multiple trailing newlines.
3517c2fbfb3SApril Chin08-09-23  The -p option to typeset when used with other attributes, restricts
3527c2fbfb3SApril Chin	  the output to variables with the specified attributes.
3537c2fbfb3SApril Chin08-09-22  A bug that sometimes lost the exit status of a job has been fixed.
3547c2fbfb3SApril Chin08-09-21  A bug that retained trailing command substitution newlines in
3557c2fbfb3SApril Chin	  cases where the command caused the shell to fork has been fixed.
3567c2fbfb3SApril Chin08-09-19  type, whence -v, and command -v were fixed to comply with POSIX
3577c2fbfb3SApril Chin	  by writing 'not found' diagnostics to the standard error.
3587c2fbfb3SApril Chin08-09-18  test and [...] were fixed to comply with POSIX in the case
3597c2fbfb3SApril Chin	  of test '(' binop ')' where binop is a valid binary test operator.
3607c2fbfb3SApril Chin08-09-16  If a method discipline named create is specified when defining a
3617c2fbfb3SApril Chin	  type, this function will be called when an instance is created.
3627c2fbfb3SApril Chin08-09-15  The variable _ is now set as a reference to the compound variable
3637c2fbfb3SApril Chin	  when defining a compound variable or a type.
3647c2fbfb3SApril Chin08-09-10  The shell now prints an error message when the type name specified
3657c2fbfb3SApril Chin	  for an indexed array subscript is not an enumeration type.
3667c2fbfb3SApril Chin08-09-10  A bug in which a subshell that spawned a background process could
3677c2fbfb3SApril Chin	  loose output that was produced after the foreground completed
3687c2fbfb3SApril Chin	  has been fixed.
3697c2fbfb3SApril Chin08-09-10  A timing bug on some systems that could cause coprocesses started by a
3707c2fbfb3SApril Chin	  subshell to not clean up and prevent other coprocesses has been fixed.
3717c2fbfb3SApril Chin08-09-09  The typeset -m option is now able to rename array elements from
3727c2fbfb3SApril Chin	  the same array.
3737c2fbfb3SApril Chin08-09-09  The exit status of 2 from the DEBUG trap causes the next command
3747c2fbfb3SApril Chin	  to be skipped.  An exit value of 255 from a DEBUG trap called from
3757c2fbfb3SApril Chin	  a function causes the function to return.
3767c2fbfb3SApril Chin08-09-08  A bug in which a coprocess created in a subshell that did not
3777c2fbfb3SApril Chin	  complete when the subshell terminated could prevent a coprocess
3787c2fbfb3SApril Chin	  from being created in the parent shell has been fixed.
3797c2fbfb3SApril Chin08-09-05  An assignment of the form name1=name2 where name1 and name2
3807c2fbfb3SApril Chin	  are both compound variables causes name1 to get a copy of name2.
3817c2fbfb3SApril Chin	  name1+=name2 causes name2 sub-variables to be appended to name1.
3827c2fbfb3SApril Chin08-09-05  A bug in which unsetting a compound variable did not unset all
3837c2fbfb3SApril Chin	  the sub-variables has been fixed.
3847c2fbfb3SApril Chin08-09-01  A bug in the subshell cleanup code that could cause SIGSEGV has
3857c2fbfb3SApril Chin	  been fixed.
3867c2fbfb3SApril Chin06-08-26  The SHLVL variable which is an environment variable used by bash
3877c2fbfb3SApril Chin          and zsh that gets incremented when the shell starts.
3887c2fbfb3SApril Chin08-08-25  For an indexed array, a negative subscript now refers to offsets
3897c2fbfb3SApril Chin	  from the end so that -1 refers to the last element.
3907c2fbfb3SApril Chin08-08-24  An alignment error for shorts on 64 bit architectures has been fixed.
3917c2fbfb3SApril Chin08-08-22  If oldvar is a compound variable, typeset -C newvar=oldvar creates
3927c2fbfb3SApril Chin	  newvar as a copy of oldvar.
3937c2fbfb3SApril Chin08-08-19  The ALRM signal no longer cause the sleep builtin to terminate.
3947c2fbfb3SApril Chin08-08-13  When used in an arithmetic expression, the .sh.version variable
3957c2fbfb3SApril Chin	  now produces a number that will be increasing for each release.
3967c2fbfb3SApril Chin08-08-11  A bug in which type instantiation with a compound assignment in
3977c2fbfb3SApril Chin	  a dot script in which the type is defined has been fixed.
3987c2fbfb3SApril Chin08-08-07  The -m option has been added to typeset to move or rename a
3997c2fbfb3SApril Chin	  variable.  Not documented yet.
4007c2fbfb3SApril Chin08-08-06  A bug in read when used in a loop when a prompt was specified
4017c2fbfb3SApril Chin	  when reading from a terminal has been fixed.
4027c2fbfb3SApril Chin08-08-01  A bug with the pipefail option in which a nested pipeline could
4037c2fbfb3SApril Chin	  cause an asynchronous command to block has been fixed.
4047c2fbfb3SApril Chin08-08-01  A for loop optimizer bug that treats .sh.lineno as an invariant
4057c2fbfb3SApril Chin	  has been fixed.
4067c2fbfb3SApril Chin08-07-30  A bug in which expanding compound variable that had a get discipline
4077c2fbfb3SApril Chin	  from with a here document could cause a syntax error has been fixed.
4087c2fbfb3SApril Chin08-07-18  A bug in which a nameref caused a local variable to be created
4097c2fbfb3SApril Chin	  rather than binding to an existing variable in the global scope
4107c2fbfb3SApril Chin	  has been fixed.
4117c2fbfb3SApril Chin08-07-17  A bug which occurred when a nameref was created from within a
4127c2fbfb3SApril Chin	  function that was  part of a pipeline has been fixed.
4137c2fbfb3SApril Chin08-07-14  The compile option SHOPT_STATS was added. With this option the
4147c2fbfb3SApril Chin	  compound variable .sh.stats keeps usage statistics that could help
4157c2fbfb3SApril Chin	  with performance tuning.
4167c2fbfb3SApril Chin08-07-10  The output of set now always uses a single line for each variable.
4177c2fbfb3SApril Chin	  For array variables, the complete set of values is now displayed.
4187c2fbfb3SApril Chin08-07-09  The typeset -C option can be used with arrays to indicate that
4197c2fbfb3SApril Chin	  each element should default to a compound variable.
4207c2fbfb3SApril Chin08-07-08  The %B format now outputs compound variables and arrays.  The
4217c2fbfb3SApril Chin	  alternate flag # can be used to cause output into a single line.
4227c2fbfb3SApril Chin08-07-03  When the window change signal, WINCH, is received, the current
4237c2fbfb3SApril Chin	  edit line is redrawn in place.
4247c2fbfb3SApril Chin08-07-01  A bug in the handling of shared variables when inside an embedded
4257c2fbfb3SApril Chin	  type has been fixed.
4267c2fbfb3SApril Chin08-06-29  A bug in multiline edit mode which occurred when the prompt length
4277c2fbfb3SApril Chin	  was three characters or less has been fixed.
4287c2fbfb3SApril Chin08-06-23  A bug in which the SIGCLD was not be triggered when background
4297c2fbfb3SApril Chin	  jobs completed has been fixed.
4307c2fbfb3SApril Chin08-06-23  KSH_VERSION added as a name reference to .sh.version.
4317c2fbfb3SApril Chin08-06-20  type now outputs 'special builtin' for special builtins.
43234f9b3eeSRoland Mainz08-06-19  A couple of bugs in multi-dimensional arrays have been fixed.
4337c2fbfb3SApril Chin08-06-19  A bug in which a syntax error in a dot script could generated
4347c2fbfb3SApril Chin	  a syntax error in the next subsequent command has been fixed.
4357c2fbfb3SApril Chin08-06-17  Reduced the maximum function call depth to 2048 to avoid exceptions
4367c2fbfb3SApril Chin	  on some architectures.
4377c2fbfb3SApril Chin08-06-16  A bug in which printf "%B" could generate an exception when the
4387c2fbfb3SApril Chin	  specified variable was not set has been fixed.
4397c2fbfb3SApril Chin08-06-16  When typeset -p is followed by variable names, it now displays
4407c2fbfb3SApril Chin	  the attributes names and values for the specific names.
4417c2fbfb3SApril Chin08-06-14  A bug that could effect the drawing of the screen from multiline
4427c2fbfb3SApril Chin	  emacs or gmacs mode when walking up the history file has been fixed.
4437c2fbfb3SApril Chin08-06-13  A bug in which a compound variable defined in a subshell could
4447c2fbfb3SApril Chin	  have side effects into the parent shell has been fixed.
4457c2fbfb3SApril Chin08-06-13  A number of bugs related to using .sh.level to set the stack from
4467c2fbfb3SApril Chin	  for DEBUG traps have been fixed.
4477c2fbfb3SApril Chin08-06-13  The .sh.lineno variable has been added.  When .sh.level is changed
4487c2fbfb3SApril Chin	  inside a DEBUG trap, the .sh.lineno contains the calling line number
4497c2fbfb3SApril Chin	  for the specified stack frame.
4507c2fbfb3SApril Chin08-06-13  The .sh.level variable has been documented and now works.
4517c2fbfb3SApril Chin08-06-11  The -C option has been added to read for reading compound command
4527c2fbfb3SApril Chin	  definitions from a file.
4537c2fbfb3SApril Chin08-06-11  The . command is now permitted inside a compound command definition.
4547c2fbfb3SApril Chin	  The dot script can contain declaration commands and dot commands.
4557c2fbfb3SApril Chin08-06-09  Add -C option to typeset so that typeset -C foo, is equivalent
4567c2fbfb3SApril Chin	  to foo=().
4577c2fbfb3SApril Chin08-06-09  Added -n warning message for typeset option orderings that are valid
4587c2fbfb3SApril Chin	  with ksh88 but not valid with ksh93, for example Lx5.
4597c2fbfb3SApril Chin08-06-09  A bug in which the return value for an assignment command containing
4607c2fbfb3SApril Chin	  a command substitution with that failed was zero when the assignment
4617c2fbfb3SApril Chin	  contained redirections has been fixed.
4627c2fbfb3SApril Chin08-06-09  A bug in the quoting of $ inside a ERE pattern ~(E)(pattern)
4637c2fbfb3SApril Chin	  has been fixed.
4647c2fbfb3SApril Chin08-06-06  A bug when processing `` command substitution with the character
4657c2fbfb3SApril Chin	  sequence \$' has been fixed.
4667c2fbfb3SApril Chin08-06-02  When defining a type, the typeset -r attribute causes this field
4677c2fbfb3SApril Chin	  to be required to be specified for each instance of the type and
4687c2fbfb3SApril Chin	  does not allow a default value.
4697c2fbfb3SApril Chin08-06-02  Several bugs in which compound variables were modified by
4707c2fbfb3SApril Chin	  subshells have been fixed.
4717c2fbfb3SApril Chin08-05-22  The ceil function has been added to the math functions.
4727c2fbfb3SApril Chin08-05-21  A bug in which a name reference defined in a function and passed
4737c2fbfb3SApril Chin	  as an argument to another function could cause an incorrect binding.
4747c2fbfb3SApril Chin08-05-21  A bug in freeing compound variables that are local to functions
4757c2fbfb3SApril Chin	  has been fixed.
4767c2fbfb3SApril Chin08-05-19  The array expansions ${array[sub1..sub2]} and ${!array[sub1..sub2]}
4777c2fbfb3SApril Chin	  to expand to the value (or subscripts) for array between sub1 and
4787c2fbfb3SApril Chin	  sub2 inclusive.  For associative arrays, the range is based on
4797c2fbfb3SApril Chin	  location in the POSIX locale.  The .. must be explicit and cannot
4807c2fbfb3SApril Chin	  result from an expansion.
4817c2fbfb3SApril Chin08-05-15  The trap on SIGCLD is no longer triggered by the completion of
4827c2fbfb3SApril Chin	  the foreground job as with ksh88.
4837c2fbfb3SApril Chin08-05-14  A bug in the implementation of the editing feature added on
4847c2fbfb3SApril Chin	  07-09-19 in emacs mode has been fixed.
4857c2fbfb3SApril Chin08-05-12  A bug in processing the test built-in with parenthesis has been
4867c2fbfb3SApril Chin	  fixed.
4877c2fbfb3SApril Chin08-05-12  The unset built-in now returns non-zero when deleting an array
4887c2fbfb3SApril Chin	  subscript that is not set.
4897c2fbfb3SApril Chin08-05-08  Changing the value of HISTFILE or HISTSIZE will cause the old
4907c2fbfb3SApril Chin	  history file to be close and reopened with the new name or size.
4917c2fbfb3SApril Chin08-05-08  When FPATH is changed functions that were found via a path search
4927c2fbfb3SApril Chin	  will be searched for again.
4937c2fbfb3SApril Chin08-05-08  A parser bug in which reserved words and labels were recognized
4947c2fbfb3SApril Chin	  inside compound indexed array assignment after a new-line has
4957c2fbfb3SApril Chin	  been fixed.
4967c2fbfb3SApril Chin08-05-07  A bug in getopts when handling numerical option arguments has
4977c2fbfb3SApril Chin	  been fixed.
4987c2fbfb3SApril Chin08-05-07  The typeset -S option was added for variables outside type
4997c2fbfb3SApril Chin	  definitions to provide a storage class similar to C static
5007c2fbfb3SApril Chin	  inside a function defined with function name.  When outside
5017c2fbfb3SApril Chin	  type definitions and outside a function, the -S option cause
5027c2fbfb3SApril Chin	  the specified variable so be unset before the assignment and
5037c2fbfb3SApril Chin	  before the remaining attributes are supplied.
5047c2fbfb3SApril Chin08-05-07  A bug that affected the cursor movement in multiline mode when
5057c2fbfb3SApril Chin	  a character was deleted from near the beginning of the any
5067c2fbfb3SApril Chin	  line other than the first.
5077c2fbfb3SApril Chin08-05-01  In multiline edit mode, the refresh operation will now clear
5087c2fbfb3SApril Chin	  the remaining portion of the last line.
5097c2fbfb3SApril Chin08-05-01  A bug in computing prompt widths for the edit modes for prompts
5107c2fbfb3SApril Chin	  with multibyte characters has been fixed.
5117c2fbfb3SApril Chin08-05-01  A bug in the multiline edit mode which could cause the current
5127c2fbfb3SApril Chin	  line to be displayed incorrectly when moving backwards from third
5137c2fbfb3SApril Chin	  or higher line to the previous line has been fixed.
5147c2fbfb3SApril Chin08-05-01  A bug in which options set in functions declared with the function
5157c2fbfb3SApril Chin	  name syntax were carried across into functions invoked by these
5167c2fbfb3SApril Chin	  functions has been fixed.
5177c2fbfb3SApril Chin08-04-30  A bug which could cause a coprocess to hang when the read end
5187c2fbfb3SApril Chin	  is a builtin command has been fixed.
5197c2fbfb3SApril Chin08-04-30  The emacs and vi editors have been modified to handle window
5207c2fbfb3SApril Chin	  change commands as soon as they happen rather than waiting for
5217c2fbfb3SApril Chin	  the next command.
5227c2fbfb3SApril Chin08-04-28  A bug in which ${!x} did not expand to x when x was unset has been
5237c2fbfb3SApril Chin	  fixed.
5247c2fbfb3SApril Chin08-04-27  A bug in which the assignment x=(typeset -a foo=([0]=abc)) created
5257c2fbfb3SApril Chin	  x.foo as an associative array has been fixed.
5267c2fbfb3SApril Chin08-04-25  A bug in which $# did not report correctly when there were more
5277c2fbfb3SApril Chin	  than 32K positional parameters has been fixed.
5287c2fbfb3SApril Chin08-04-04  Choose the name _ as the sub-variable that holds type or instance
5297c2fbfb3SApril Chin	  specific data used by discipline functions.
5307c2fbfb3SApril Chin08-03-27  A bug in which the terminal group was not given back to the parent
5317c2fbfb3SApril Chin	  shell when the last part of a pipeline was handled by the parent shell
5327c2fbfb3SApril Chin	  and the other parts of the pipeline complete has been fixed.
5337c2fbfb3SApril Chin	  The symptom was that the pipeline became uninterruptable.
5347c2fbfb3SApril Chin08-03-25  A bug in restricted mode introduced in ksh93s that caused scripts
5357c2fbfb3SApril Chin	  that did not use #! to executed in restricted mode has been fixed.
5367c2fbfb3SApril Chin08-03-25  A bug in which the pipefail option did not work for a pipeline
5377c2fbfb3SApril Chin	  within a pipeline has been fixed.
5387c2fbfb3SApril Chin08-03-24  A bug in which OPTIND was not set correctly in subshells has
5397c2fbfb3SApril Chin	  been fixed.
5407c2fbfb3SApril Chin08-03-24  A bug which could cause a memory exception when a compound variable
5417c2fbfb3SApril Chin	  containing an indexed array with only element 0 defined was expanded.
5427c2fbfb3SApril Chin08-03-20  A bug in which ${!var[sub].*} was treated as an error has been fixed.
5437c2fbfb3SApril Chin08-03-20  Associative array assignments of the form ([name]=value ...)
5447c2fbfb3SApril Chin	  now allow ; as well as space tab and new line to separate elements.
5457c2fbfb3SApril Chin08-03-18  A buffering problem in which standard error was sometimes
5467c2fbfb3SApril Chin	  not flushed before sleep has been fixed.
5477c2fbfb3SApril Chin08-03-17  A bug in which a signal sent to $$ while in a subshell would be
5487c2fbfb3SApril Chin	  sent to the subshell rather than the parent has been fixed.
5497c2fbfb3SApril Chin08-03-17  --default option added to set(1) to handle set +o POSIX semantics.
5507c2fbfb3SApril Chin	  set --state added as a long name alias for set +o.
5517c2fbfb3SApril Chin08-03-14  A bug in which using monitor mode from within a script could
5527c2fbfb3SApril Chin	  cause the terminal group to change has been fixed.
5537c2fbfb3SApril Chin08-03-10  The new ${...} command substitution will treat the trailing }
5547c2fbfb3SApril Chin	  as a reserved word even if it is not at the beginning of a command,
5557c2fbfb3SApril Chin	  for example, ${ date }.
5567c2fbfb3SApril Chin08-03-10  If the name of the ENV begins with /./ or ././ then the
5577c2fbfb3SApril Chin	  /etc/ksh.kshrc file will not be executed on systems that support
5587c2fbfb3SApril Chin	  this interactive initialization file.
5597c2fbfb3SApril Chin08-03-07  A bug in which ksh -i did not run the ENV file has been fixed.
5607c2fbfb3SApril Chin08-03-07  A bug in which ulimit did not always produce the same output as
5617c2fbfb3SApril Chin	  ulimit -fS has been fixed.
5627c2fbfb3SApril Chin08-03-04  A bug in multiline mode in emacs and vi mode which could cause the
5637c2fbfb3SApril Chin	  cursor to be on the wrong line when interrupt was hit has been fixed.
5647c2fbfb3SApril Chin08-03-03  The change made in ksh93s+ on 07-06-18 in which braces became
5657c2fbfb3SApril Chin	  optional for ${a[i]} inside  [[...]] was restored in the case
5667c2fbfb3SApril Chin	  where the argument can be a pattern.
5677c2fbfb3SApril Chin08-03-03  A bug in which creating a name reference to an associative array
5687c2fbfb3SApril Chin	  instance would fail when the subscript contained characters [ or
5697c2fbfb3SApril Chin	  ] has been fixed.
5707c2fbfb3SApril Chin08-02-29  The redirection operator >; has been added which for non-special
5717c2fbfb3SApril Chin	  files, generates the output in a temporary file and writes the
5727c2fbfb3SApril Chin	  specified file only of the command has completed successfully.
5737c2fbfb3SApril Chin08-02-15  A bug in ${var/pattern/string} for patterns of the form ?(*) and +(*)
5747c2fbfb3SApril Chin	  has bee fixed.
5757c2fbfb3SApril Chin08-02-07  A bug in which test \( ! -e \) produced an error has been fixed.
5767c2fbfb3SApril Chin08-02-14  The typeset -a option can now optionally be followed by the name
5777c2fbfb3SApril Chin	  of an enumeration type which allows subscripts to be enumerations.
5787c2fbfb3SApril Chin08-02-14  The enum builtin which creates enumeration types has been added.
5797c2fbfb3SApril Chin08-02-12  The backoff logic when there are no more processes has been fixed.
5807c2fbfb3SApril Chin08-02-07  The -X option has been added to typeset.  The -X option creates
5817c2fbfb3SApril Chin	  a double precision number that gets displayed using the C99 %a
5827c2fbfb3SApril Chin	  format.  It can be used along with -l for long double.
5837c2fbfb3SApril Chin08-01-31  The -T option to typeset has been added for creating typed
5847c2fbfb3SApril Chin	  variables.  Also the -h and -S options have been added to
5857c2fbfb3SApril Chin	  typeset that are only applicable when defining a type.
5867c2fbfb3SApril Chin08-01-31  The prefix expansion operator @ has been added.  ${@name}
5877c2fbfb3SApril Chin	  expands to the type of name or yields the attributes.
5887c2fbfb3SApril Chin07-11-15  A bug in the macro expander for multibyte characters in which
5897c2fbfb3SApril Chin	  part of the character contains a file pattern byte has been fixed.
5907c2fbfb3SApril Chin07-10-03  A bug in which : was not allowed as part of an alias name has been
5917c2fbfb3SApril Chin	  fixed.
5927c2fbfb3SApril Chin07-09-26  A bug in which appending a compound variable to a compound variable
5937c2fbfb3SApril Chin	  or to an index array didn't work has been fixed.
5947c2fbfb3SApril Chin07-09-19  In both emacs and vi edit mode, the escape sequence \E[A (usually
5957c2fbfb3SApril Chin	  cursor up, when the cursor is at the end of the line will fetch
5967c2fbfb3SApril Chin	  the most recent line starting with the current line.
5977c2fbfb3SApril Chin07-09-18  The value of ${!var} was correct when var was a reference to an
5987c2fbfb3SApril Chin	  array instance.
5997c2fbfb3SApril Chin07-09-18  The value of ${!var[sub]} was not expanding to var[sub] and this
6007c2fbfb3SApril Chin	  was fixed.  It also fixed ${name} where name is a name reference
6017c2fbfb3SApril Chin	  to var[sub].
6027c2fbfb3SApril Chin07-09-18  It is now legal to create a name reference without an initialization.
6037c2fbfb3SApril Chin	  It will be bound to a variable on the first assignment.
6047c2fbfb3SApril Chin07-08-30  A discipline function can be invoked as ${x.foo} and is equivalent
6057c2fbfb3SApril Chin	  to ${ x.foo;} and can be invoked as x.foo inside ((...)).
6067c2fbfb3SApril Chin07-07-09  A bug in which typeset -a did not list indexed arrays has been
6077c2fbfb3SApril Chin	  fixed.
6087c2fbfb3SApril Chin07-07-03  The command substitution ${ command;} has been added.  It behaves
6097c2fbfb3SApril Chin	  like $(command) except that command is executed in the current
6107c2fbfb3SApril Chin	  shell environment.  The ${ must be followed by a blank or an
6117c2fbfb3SApril Chin	  operator.
6127c2fbfb3SApril Chin
6137c2fbfb3SApril Chin08-04-17  --- Release ksh93s+  ---
6147c2fbfb3SApril Chin08-04-17  A bug in which umask was not being restored correctly after a
6157c2fbfb3SApril Chin          subshell has been fixed.
6167c2fbfb3SApril Chin08-04-15  A bug in which sending a STOP signal to a job control shell started
6177c2fbfb3SApril Chin	  from within a shell function caused cause the invoking shell to
6187c2fbfb3SApril Chin	  terminate has been fixed.
6197c2fbfb3SApril Chin08-04-11  A bug which caused $(exec > /dev/null) to go into an infinite loop
6207c2fbfb3SApril Chin	  has been fixed.
6217c2fbfb3SApril Chin08-03-27  A bug in which typeset -LZ was being treated as -RZ has been fixed.
6227c2fbfb3SApril Chin08-03-06  A bug with ksh -P on systems that support the the profile shell,
6237c2fbfb3SApril Chin          in which it would exit after running a non-builtin has been fixed.
6247c2fbfb3SApril Chin08-01-31  A bug in which command substitution inside ((...)) could cause
6257c2fbfb3SApril Chin	  syntax errors or lead to core dumps has been fixed.
6267c2fbfb3SApril Chin08-01-17  A bug in which discipline functions could be deleted when invoked
6277c2fbfb3SApril Chin	  from a subshell has been fixed.
6287c2fbfb3SApril Chin08-01-17  A bug in which a command substitution consisting only of
6297c2fbfb3SApril Chin	  assignments was treated as a noop has been fixed.
6307c2fbfb3SApril Chin08-01-17  A bug in which discipline functions invoked from withing a
6317c2fbfb3SApril Chin	  compound assignment could fail has been fixed.
6327c2fbfb3SApril Chin08-01-16  Incomplete arithmetic assignments, for example ((x += )), now
6337c2fbfb3SApril Chin	  generate an error message.
6347c2fbfb3SApril Chin08-01-16  A bug in which a set discipline defined for a variable before
6357c2fbfb3SApril Chin	  an array assignment could cause a core dump has been fixed.
6367c2fbfb3SApril Chin08-01-03  A bug in on some systems in which exit status 0 is incorrectly
6377c2fbfb3SApril Chin	  returned by a process that catches the SIGCONT signal is stopped
6387c2fbfb3SApril Chin	  and then continued.
6397c2fbfb3SApril Chin07-12-13  A race condition in which a program that has been stopped and then
6407c2fbfb3SApril Chin	  continued could loose the exit status has been fixed.
6417c2fbfb3SApril Chin07-12-12  Code to check for file system out of space write errors for all
6427c2fbfb3SApril Chin	  writes has been added.
6437c2fbfb3SApril Chin07-12-11  A bug in the macro expander for multibyte characters in which
6447c2fbfb3SApril Chin	  part of the character contains a file pattern byte has been fixed.
6457c2fbfb3SApril Chin07-12-06  A bug in the emacs edit mode when multiline was set that output
6467c2fbfb3SApril Chin	  a backspace before the newline to the screen has been fixed.
6477c2fbfb3SApril Chin07-12-04  A bug in which using <n>TAB after a variable name listing expansion
6487c2fbfb3SApril Chin	  in the edit modes would cause the $ to disappear has been fixed.
6497c2fbfb3SApril Chin07-11-28  A bug in which setting IFS to readonly could cause a subsequent
6507c2fbfb3SApril Chin	  command substitution to fail has been fixed.
6517c2fbfb3SApril Chin07-11-27  A work around for a gcc 4.* C99 "feature" that could cause a job
6527c2fbfb3SApril Chin	  control shell to go into an infinite loop by adding the volatile
6537c2fbfb3SApril Chin	  attribute to some auto vars in functions that call setjmp().
6547c2fbfb3SApril Chin07-11-27  A bug in which the shell could read ahead on a pipe causing the
6557c2fbfb3SApril Chin	  standard input to be incorrectly positioned has been fixed.
6567c2fbfb3SApril Chin07-11-27  A bug in which compound variable UTF-8 multibyte values were not
6577c2fbfb3SApril Chin	  expanded or traced properly has been fixed.
6587c2fbfb3SApril Chin07-11-21  A bug where an unbalanced '[' in a command argument was not treated
6597c2fbfb3SApril Chin	  properly has been fixed.
6607c2fbfb3SApril Chin07-11-15  A bug in which compatibility mode (no long option names) getopts(1)
6617c2fbfb3SApril Chin	  incorrectly set the value of OPTARG for flag options has been fixed.
6627c2fbfb3SApril Chin07-11-15  A bug in which "hash -- name" treated "--" as an invalid name operand
6637c2fbfb3SApril Chin	  has been fixed.
6647c2fbfb3SApril Chin07-11-15  typeset now handles "-t -- [-r] [--]" for s5r4 hash(1) compatibility.
6657c2fbfb3SApril Chin07-11-15  A bug in which the umask builtin mis-handled symbolic mode operands
6667c2fbfb3SApril Chin	  has been fixed.
6677c2fbfb3SApril Chin07-11-15  Bugs in which shell arithmetic and the printf builtin mis-handled the
6687c2fbfb3SApril Chin	  signs of { -NaN -Inf -0.0 } have been fixed.
6697c2fbfb3SApril Chin07-11-15  The full { SIGRTMIN SIGRTMIN+1 ... SIGRTMAX-1 SIGRTMAX } range
6707c2fbfb3SApril Chin	  of signals, determined at runtime, are now supported.
6717c2fbfb3SApril Chin07-11-15  A bug in which creating an index array with only subscript 0 created
6727c2fbfb3SApril Chin	  only a simple variable has been fixed.
6737c2fbfb3SApril Chin07-11-14  A bug in which appending to an indexed array using the form
6747c2fbfb3SApril Chin	  name+=([sub]=value) could cause the array to become an associative
6757c2fbfb3SApril Chin	  array has been fixed.
6767c2fbfb3SApril Chin07-11-14  A bug in which typeset without arguments could coredump if a
6777c2fbfb3SApril Chin	  variable is declared as in indexed array and  has no elements has
6787c2fbfb3SApril Chin	  been fixed.
6797c2fbfb3SApril Chin07-11-14  A bug in which creating a local SECONDS variable with typeset in
6807c2fbfb3SApril Chin	  a function could corrupt memory has been fixed.
6817c2fbfb3SApril Chin07-11-14  A bug which could cause a core dump when a script invoked by name
6827c2fbfb3SApril Chin	  from a function used compound variables has been fixed.
6837c2fbfb3SApril Chin07-11-05  A bug in which printf %d "'AB" did not diagnose unconverted characters
6847c2fbfb3SApril Chin	  has been fixed.
6857c2fbfb3SApril Chin07-11-05  printf %g "'A" support added for all floating point formats.
6867c2fbfb3SApril Chin07-11-01  A bug in which typeset -f fun did not display the function definition
6877c2fbfb3SApril Chin          when invoked in a subshell has been fixed.
6887c2fbfb3SApril Chin07-10-29  The sleep builtin was fixed so that all floating point constants
6897c2fbfb3SApril Chin	  are valid operands.
6907c2fbfb3SApril Chin07-10-10  A bug in which the locale was not being restored after
6917c2fbfb3SApril Chin          LANG=value command has been fixed.
6927c2fbfb3SApril Chin07-09-20  A bug in which a nameref to a compound variable that was local
6937c2fbfb3SApril Chin	  to the calling function would not expand correctly when displaying
6947c2fbfb3SApril Chin	  is value has been fixed.
6957c2fbfb3SApril Chin07-09-19  A bug which cause cause a core dump if .sh.edchar returned
6967c2fbfb3SApril Chin	  80 characters or more from a keyboard trap has been fixed.
6977c2fbfb3SApril Chin07-09-14  A bug in which could cause a core dump when more than 8 file
6987c2fbfb3SApril Chin	  descriptors were in use has been fixed.
6997c2fbfb3SApril Chin07-09-10  A bug in which creating a name reference to an instance of
7007c2fbfb3SApril Chin	  an array when the array name is itself a reference has been fixed.
7017c2fbfb3SApril Chin07-09-10  The file completion code has been modified so that after an = in
7027c2fbfb3SApril Chin	  any word, each : will be considered a path delimiter.
7037c2fbfb3SApril Chin07-09-06  A bug in which subprocess cleanup could corrupt the malloc() heap
7047c2fbfb3SApril Chin          has been fixed.
7057c2fbfb3SApril Chin07-08-26  A bug in which a name reference to an associative array instance
7067c2fbfb3SApril Chin	  could cause the subscript to be evaluated as an arithmetic expression
7077c2fbfb3SApril Chin	  has been fixed.
7087c2fbfb3SApril Chin07-08-22  A bug in which the value of an array instance was of a compound
7097c2fbfb3SApril Chin	  variable was not expanded correctly has been fixed.
7107c2fbfb3SApril Chin07-08-14  A bug which could cause a core dump when a compound assignment was
7117c2fbfb3SApril Chin	  made to a compound variable element with a typeset -a attribute
7127c2fbfb3SApril Chin	  has been fixed.
7137c2fbfb3SApril Chin07-08-08  A bug in which a trap ignored in a subshell caused it to be
7147c2fbfb3SApril Chin	  ignored by the parent has been fixed.
7157c2fbfb3SApril Chin07-08-07  A bug in which the set command would generated erroneous output
7167c2fbfb3SApril Chin	  for a variable with the -RZ attribute if the variable name had been
7177c2fbfb3SApril Chin	  passed to a function has been fixed.
7187c2fbfb3SApril Chin07-08-02  A bug in which read x[1] could core dump has been fixed.
7197c2fbfb3SApril Chin07-08-02  A second bug in which after read x[sub] into an associative array
7207c2fbfb3SApril Chin	  of an element that hasn't been assigned could lead to a core dump
7217c2fbfb3SApril Chin	  has been fixed.
7227c2fbfb3SApril Chin07-07-31  A bug in which a pipeline that completed correctly could have
7237c2fbfb3SApril Chin	  an exit status of 127 when pipefail was enabled has been fixed.
7247c2fbfb3SApril Chin07-07-09  The SHOPT_AUDIT compile option has been added for keyboard logging.
7257c2fbfb3SApril Chin07-06-25  In vi insert mode, ksh no longer emits a backspace character
7267c2fbfb3SApril Chin	  before the carriage return when the newline is entered.
7277c2fbfb3SApril Chin07-06-25  A bug in which pipefail would cause a command to return 0
7287c2fbfb3SApril Chin	  when the pipeline was the last command and the failure happened
7297c2fbfb3SApril Chin	  on a component other than the last has been fixed.
7307c2fbfb3SApril Chin07-06-25  A bug in the expansion of ${var/pattern/rep} when pattern or rep
7317c2fbfb3SApril Chin	  contained a left parenthesis in single quotes has been fixed.
7327c2fbfb3SApril Chin07-06-18  The braces for a subscripted variable with ${var[sub]} are now
7337c2fbfb3SApril Chin	  optional when inside [[...]], ((...)) or as a subscript.
7347c2fbfb3SApril Chin07-05-28  A bug in brace expansion in which single and double quotes did
7357c2fbfb3SApril Chin          not treat the comma as a literal character has been fixed.
7367c2fbfb3SApril Chin07-05-24  The -p option of whence now disables -v.
7377c2fbfb3SApril Chin07-05-23  Several bug fixes in compound variables and arrays of arrays
7387c2fbfb3SApril Chin	  have been made.
7397c2fbfb3SApril Chin07-05-15  A bug in which the %B format of printf was affected  by the
7407c2fbfb3SApril Chin	  locale has been fixed.
7417c2fbfb3SApril Chin07-05-14  A bug in which \ was not removed in the replacement pattern with
7427c2fbfb3SApril Chin	  ${var/pattern/rep} when it was not followed by \ or a digit has
7437c2fbfb3SApril Chin	  been fixed.
7447c2fbfb3SApril Chin07-05-10  A bug in which ksh -R file core dumped if no script was specified
7457c2fbfb3SApril Chin	  has been fixed.  it not displays an error message.
7467c2fbfb3SApril Chin07-05-07  Added additional Solaris signals to signal table.
7477c2fbfb3SApril Chin07-04-30  A bug in which a pipeline with command substitution inside a
7487c2fbfb3SApril Chin	  function could cause a pipeline that invokes this function to
7497c2fbfb3SApril Chin	  hang when the pipefail option is on has been fixed.
7507c2fbfb3SApril Chin07-04-30  Added -q to whence.
751da2e3ebdSchin07-04-18  A small memory leak with each redirection of a non-builtin has
752da2e3ebdSchin	  been fixed.
753da2e3ebdSchin07-03-08  A bug in which set +o output command line options has been fixed.
754da2e3ebdSchin07-03-08  A bug in which an error in read (for example, an invalid variable
755da2e3ebdSchin	  name), could leave the terminal in raw mode has been fixed.
756da2e3ebdSchin07-03-06  A bug in which read could core dump when specified with an array
757da2e3ebdSchin	  variable with a subscript that is an arithmetic expression has
758da2e3ebdSchin	  been fixed.
759da2e3ebdSchin07-03-06  Several serious bugs with the restricted shell were reported and
760da2e3ebdSchin	  fixed.
761da2e3ebdSchin07-03-02  If a job is stopped, and subsequently restarted with a CONT
762da2e3ebdSchin	  signal and exits normally, ksh93 was incorrectly exiting with
763da2e3ebdSchin	  the exit status of the stop signal number.
764da2e3ebdSchin07-02-26  M-^L added to emacs mode to clear the screen.
765da2e3ebdSchin07-02-26  A bug in which setting a variable readonly in a subshell would
766da2e3ebdSchin	  cause an unset error when the subshell completed has been fixed.
767da2e3ebdSchin07-02-19  The format with printf uses the new = flag to center the output.
768da2e3ebdSchin07-02-19  A bug in which ksh93 did not allow multibyte characters in
769da2e3ebdSchin	  identifier names has been fixed.
770da2e3ebdSchin07-02-19  A bug introduced in ksh93 that causes global compound variable
771da2e3ebdSchin	  definitions inside functions to exit with "no parent" has been fixed.
772da2e3ebdSchin07-02-19  A bug in which using compound commands in process redirection
773da2e3ebdSchin	  arguments would give syntax errors <(...) and >(...) has been fixed.
774da2e3ebdSchin07-01-29  A bug which caused the shell to core dump which can occur when a
775da2e3ebdSchin	  built-in exits without closing files that it opens has been fixed.
776da2e3ebdSchin07-01-26  A bug in which ~(E) in patterns containing \ that are not inside ()
777da2e3ebdSchin	  has been fixed.
778da2e3ebdSchin
779da2e3ebdSchin06-12-29  --- Release ksh93s  ---
780da2e3ebdSchin06-12-29  A bug in which the value of IFS could be changed after a command
781da2e3ebdSchin	  substitution has been fixed.
782da2e3ebdSchin06-12-22  /dev/(tcp|udp|sctp)/HOST/SEVRICE now handles IPv6 addresses on
783da2e3ebdSchin	  systems that provide getaddrinfo(3).
784da2e3ebdSchin06-12-19  A -v option was added to read.  With this option the value of
785da2e3ebdSchin	  the first variable name argument will become the default value
786da2e3ebdSchin	  when read from a terminal device.
787da2e3ebdSchin06-11-20  A bug in which "${foo[@]:1}}" expands a null argument (instead of
788da2e3ebdSchin	  no argument), when foo[0] is not empty has been fixed.
789da2e3ebdSchin06-11-16  The discipline functions have been modified to allow each subscript
790da2e3ebdSchin	  to act independently.  Currently the discipline function will not
791da2e3ebdSchin	  be called when called from a discipline function of the same variable.
792da2e3ebdSchin06-11-14  A bug which could cause a core dump if a file descriptor for
793da2e3ebdSchin	  an internal file was closed from with a subshell has been fixed.
794da2e3ebdSchin06-10-30  The redirections <# pattern, and <## pattern have been added.
795da2e3ebdSchin	  Both seek forward to the beginning of the next line that contains
796da2e3ebdSchin	  the pattern.  The <## form copies the skipped portion to standard
797da2e3ebdSchin	  output.
798da2e3ebdSchin06-10-26  On systems that support stream control transport, the virtual file
799da2e3ebdSchin	  name /dev/sctp/host/port can now be used to establish connections.
800da2e3ebdSchin06-10-26  The printf modifier # when used with d produces units in thousands
801da2e3ebdSchin	  with a single letter suffix added.  The modifier # when used with
802da2e3ebdSchin	  the i specification provides units of 1024 with a two letter suffix.
803da2e3ebdSchin06-10-24  The value of $! is now set to the process id of a job put
804da2e3ebdSchin	  into the background with the bg command as required by POSIX.
805da2e3ebdSchin06-10-23  A bug in which the value of $! was affected by a background
806da2e3ebdSchin	  job started from a subshell has been fixed.
807da2e3ebdSchin06-10-23  A bug in ${var:offset:len} in multibyte locales has been fixed.
808da2e3ebdSchin06-10-15  The remaining math functions from C99 were added for any system
809da2e3ebdSchin	  that supports them.
810da2e3ebdSchin06-10-13  The klockwork.com software detected a few coding errors that
811da2e3ebdSchin	  have been fixed.
812da2e3ebdSchin06-10-12  A bug when skipping over `...` with ${x:=`...`} when x is set
813da2e3ebdSchin	  has been fixed.
814da2e3ebdSchin06-10-11  A bug in process floating constants produced by the %a format
815da2e3ebdSchin	  of printf has been fixed.
816da2e3ebdSchin06-10-06  A bug in which IFS was not being restored correctly in some
817da2e3ebdSchin	  cases after a subshell has been fixed.
818da2e3ebdSchin06-10-06  A bug in which pipefail was not detecting some failures in
819da2e3ebdSchin	  pipelines with 3 or more states has been fixed.
820da2e3ebdSchin06-10-03  A bug in the processing of >(...) with builtins which could
821da2e3ebdSchin	  cause the builtin to hang has been fixed.
822da2e3ebdSchin06-10-03  A bug in the for loop optimizer which causes >(...) process
823da2e3ebdSchin	  substitution to be ignored has been fixed.
824da2e3ebdSchin06-09-17  The -a option was added to typeset for indexed arrays.  This
825da2e3ebdSchin	  is only needed when using the ([subscript]=value ...) form.
826da2e3ebdSchin06-09-06  The showme option was added.  Each simple command not beginning
827da2e3ebdSchin	  with a redirection and not occurring with in the while, until, if,
828da2e3ebdSchin	  select condition can be preceded by a semi-colon which will
829da2e3ebdSchin	  be ignored when showme is off.  When showme is on, any command
830da2e3ebdSchin	  preceded by a colon will be traced but not executed.
831da2e3ebdSchin06-08-16  As a new feature, a leading ~(N) on a pattern has no effect
832da2e3ebdSchin	  except when used for file expansion.  In this case if not
833da2e3ebdSchin	  matches are found, the pattern is replaced by nothing rather
834da2e3ebdSchin	  than itself.
835da2e3ebdSchin06-08-11  A bug in the expansion of ${.sh.match[i]:${#.shmatch[i]}} has
836da2e3ebdSchin	  been fixed.
837da2e3ebdSchin06-08-10  The read builtin options -n and -N have been modified to treat
838da2e3ebdSchin          the size as characters rather than bytes unless storing into a
839da2e3ebdSchin	  binary (typeset -B) variable.
840da2e3ebdSchin06-07-27  When the here document operator << is followed directly by a #
841da2e3ebdSchin	  rather than a -, the first line of the here-document determines
842da2e3ebdSchin	  how much whitespace is removed for each line.
843da2e3ebdSchin06-07-26  A bug in the C-shell history (enabled with set -H) in which the
844da2e3ebdSchin	  history event !$ was not processed has been fixed.
845da2e3ebdSchin06-07-21  A bug on some systems in which assigning PATH on a command line
846da2e3ebdSchin	  would not take effect has been fixed.
847da2e3ebdSchin06-07-20  Add ksh93 and rksh93 as allowable names for ksh binaries.
848da2e3ebdSchin06-07-20  Removed the SHOPT_OO compilation option which was only partially
849da2e3ebdSchin	  implemented.
850da2e3ebdSchin06-07-20  The ability to use egrep, grep, and fgrep expressions within
851da2e3ebdSchin	  shell patterns has been documented.
852da2e3ebdSchin06-07-17  A bug with arithmetic command expressions for locales in which
853da2e3ebdSchin	  the comma is a thousands separator has been fixed.
854da2e3ebdSchin06-07-13  The default HISTSIZE was increased from 128 to 512.
855da2e3ebdSchin06-07-13  A multibyte problem with locales that use shift codes has been fixed.
856da2e3ebdSchin06-06-23  A number of bug fixes for command, file, and variable completion
857da2e3ebdSchin	  have been mode.
858da2e3ebdSchin06-06-20  Floating point division by zero now yields the constant Inf or -Inf
859da2e3ebdSchin	  and floating functions with invalid arguments yield NaN.
860da2e3ebdSchin06-06-20  The floating point constants Inf and NaN can be used in arithmetic
861da2e3ebdSchin	  expressions.
862da2e3ebdSchin06-06-20  The functions isinf(), isnan(), tanhl() have been added for
863da2e3ebdSchin	  arithmetic expressions.
864da2e3ebdSchin06-06-13  Internal change to use ordering for variables instead of hashing
865da2e3ebdSchin	  to speed up prefix matching.
866da2e3ebdSchin06-06-13  A window between fork/exec in which a signal could get lost
867da2e3ebdSchin	  and cause a program to hang has been eliminated
868da2e3ebdSchin06-06-13  A bug in edit completion with quoted strings has been fixed.
869da2e3ebdSchin06-06-07  The restricted options can now be enabled by set as well as on
870da2e3ebdSchin	  the command line.  Once set, it can not be disabled.
871da2e3ebdSchin06-06-04  Modified built-in binding so that for systems for which /bin
872da2e3ebdSchin          and /usr/bin are the same, a builtin bound to /bin will get
873da2e3ebdSchin	  selected when either /bin or /usr/bin is scanned.
874da2e3ebdSchin06-06-04  Added literal-next character processing for emacs/gmacs mode.
875da2e3ebdSchin	  This change is not compatible with earlier versions of ksh93
876da2e3ebdSchin          and ksh88 when the stty lnext is control-v.  The sequence
877da2e3ebdSchin	  escape-control-v will display the shell version.
878da2e3ebdSchin06-05-31  Modified emacs and vi mode so that entering a TAB after a partial
879da2e3ebdSchin	  TAB completion, generates a listing of possible completions.
880da2e3ebdSchin	  After the second TAB, a number followed by a TAB will perform
881da2e3ebdSchin	  the completion with the corresponding item.
882da2e3ebdSchin06-05-19  Modified arithmetic so that conversions to strings default to
883da2e3ebdSchin	  the maximum number of precision digits.
884da2e3ebdSchin06-05-16  Bug fixes for multibyte locales.
885da2e3ebdSchin06-05-10  The =~ operator was added to [[...]] and  [[ string ~= ERE ]]
886da2e3ebdSchin	  is equivalent to [[ string == ~(E)ERE ]].
887da2e3ebdSchin06-04-25  A bug in the vi edit mode which could cause the shell to core dump
888da2e3ebdSchin	  when switching from emacs mode.
889da2e3ebdSchin06-04-17  A bug in which using LANG or LC_ in assignment lists with builtins
890da2e3ebdSchin	  did not restore the localed correctly has been fixed.
891da2e3ebdSchin06-04-04  A bug in which discipline functions could not be added to variables
892da2e3ebdSchin	  whose names started with .sh has been fixed.
893da2e3ebdSchin06-03-28  The -s option to typeset was added to modify -i to indicate short
894da2e3ebdSchin	  integers.
895da2e3ebdSchin06-03-28  A bug in which variables assignment lists before functions
896da2e3ebdSchin	  defined with function name were not passed on the functions
897da2e3ebdSchin	  invoked by this function has been fixed.
898da2e3ebdSchin06-03-28  A bug in which name references defined within a function defined
899da2e3ebdSchin	  with function  name could not be used with compound variables has
900da2e3ebdSchin	  been fixed.
901da2e3ebdSchin06-03-27  A bug in which read <&p (print >&p) would cause the coprocess input
902da2e3ebdSchin	  (output) pipe to close before reading from (after writing to)
903da2e3ebdSchin          it has been fixed.
904da2e3ebdSchin06-02-28  A bug in which stopping a job created with the hist builtin command
905da2e3ebdSchin	  would create a job that could not be restarted has been fixed.
906da2e3ebdSchin
907da2e3ebdSchin06-01-24  --- Release ksh93r  ---
908da2e3ebdSchin06-01-24  A bug in which running commands with standard output closed would
909da2e3ebdSchin	  not work as expected has been fixed.
910da2e3ebdSchin06-01-23  A bug in which print -u<n> could fail when file descriptor <n> was
911da2e3ebdSchin	  open for writing has been fixed.
912da2e3ebdSchin06-01-19  The ?: arithmetic operator fixed to work when the operation after
913da2e3ebdSchin	  the colon was an assignment.
914da2e3ebdSchin05-12-24  A bug which could lead to a core dump when elements of a compound
915da2e3ebdSchin	  variable were array elements, i.e. foo=(bar=(1 2)), has been fixed.
916da2e3ebdSchin05-12-13  An arithmetic bug in which x+=y+=z was not working has been fixed.
917da2e3ebdSchin05-12-13  An arithmetic bug in which x||y was returning x when x was non-zero
918da2e3ebdSchin	  rather than 1 has been fixed.
919da2e3ebdSchin05-12-07  The aliases for integer and float have been changed to use attributes
920da2e3ebdSchin	  -li and -lE to handle long long and long double types.
921da2e3ebdSchin05-12-07  The histexpand (-H) option has been added which allows C-shell
922da2e3ebdSchin	  style history expansions using the history character !.
923da2e3ebdSchin05-12-07  The multiline option was added which changes that way the edit
924da2e3ebdSchin	  modes handle lines longer than the window width.  Instead of
925da2e3ebdSchin	  horizontal scrolling, multiple lines on the screen are used.
926da2e3ebdSchin05-12-05  The whence builtin now returns an absolute pathname when the
927da2e3ebdSchin          command is found in the current directory.
928da2e3ebdSchin05-11-29  A bug which caused ksh -c '[[ ! ((' to core dump rather than
929da2e3ebdSchin	  report a syntax error has been fixed.
930da2e3ebdSchin05-11-29  A bug when reading fixed length records into typeset -b variables
931da2e3ebdSchin	  which caused a zero byte to terminate the value has been fixed.
932da2e3ebdSchin05-11-22  The ability to seek to an offset within a file has been added
933da2e3ebdSchin	  with the new I/O redirection operators, <#  and >#.  Currently,
934da2e3ebdSchin	  these redirection operators must be followed by ((expr))
935da2e3ebdSchin	  but in a future release, it should be able to used to seek forward
936da2e3ebdSchin	  to the specified shell pattern.  In addition $(n<#) expands to the
937da2e3ebdSchin	  current byte offset for file descriptor n.
938da2e3ebdSchin05-11-22  The .sh.match array variable is now set after each [[ ... ]]
939da2e3ebdSchin	  pattern match.  Previously it was only set for substring matches.
940da2e3ebdSchin05-10-17  A bug in which the library path variable could be prefixed
941da2e3ebdSchin          with a directory when a .path file was not encountered in
942da2e3ebdSchin	  the directory of the executable has been fixed.
943da2e3ebdSchin05-09-15  A for/while loop optimizer bug in which $OPTIND was not
944da2e3ebdSchin	  correctly expanded has been fixed.
945da2e3ebdSchin05-09-05  A bug in which a history command that invoked a history
946da2e3ebdSchin	  command could go into an infinite loop has been fixed.
947da2e3ebdSchin05-08-31  In the case that IFS contains to adjacent new-lines so that
948da2e3ebdSchin	  new-line is not treated as a space delimiter, only a single
949da2e3ebdSchin	  new-line is deleted at the end of a command substitution.
950da2e3ebdSchin05-08-19  When a tilde substitution expands to the / directory and is
951da2e3ebdSchin	  followed by a /, it is replaced by the empty string.
952da2e3ebdSchin05-08-16  A bug in which n<&m did not synchronize m has been fixed.
953da2e3ebdSchin05-08-16  A bug in which process substitution  ( <() and >() ) was not
954da2e3ebdSchin	  working within for and while loops has been fixed.
955da2e3ebdSchin05-07-24  A bug in which the pattern ~(E)(foo|bar) was treated as a syntax
956da2e3ebdSchin	  error has been fixed.
957da2e3ebdSchin05-07-24  A bug in completion with <n>=, where n was the one of the
958da2e3ebdSchin	  previous selection choices has been fixed.
959da2e3ebdSchin05-07-21  A bug with multibyte input when no edit mode was specified which
960da2e3ebdSchin	  caused the input line to shift left/right has been fixed.
961da2e3ebdSchin05-06-24  A race condition which could cause the exit status to get lost
962da2e3ebdSchin	  on some fast systems has been fixed.
963da2e3ebdSchin05-06-21  A bug in which nested patterns of the form {m,n}(pat) would cause
964da2e3ebdSchin	  syntax errors has been fixed.
965da2e3ebdSchin05-06-21  A bug in the macro expander has been fixed which could cause a
966da2e3ebdSchin          syntax error for an expansion of the form ${x-$(...)} when
967da2e3ebdSchin	  x is set and the command substitution contained certain strings.
968da2e3ebdSchin05-06-08  On systems for which echo does not do System V style \ expansions,
969da2e3ebdSchin	  the -e option was added to enable these expansion.
970da2e3ebdSchin05-06-08  A bug in which ${var op pattern} to not work when inside an
971da2e3ebdSchin	  arithmetic expression has been fixed.
972da2e3ebdSchin05-05-23  An extension to shell patterns that allows matching of nested
973da2e3ebdSchin	  groups while skipping over quoted strings has been added.
974da2e3ebdSchin05-05-18  A bug in which the line number for errors was not correct for
975da2e3ebdSchin          functions loaded from FPATH has been fixed.
976da2e3ebdSchin05-04-18  A bug in which the exit status $? is not set when a trap triggered
977da2e3ebdSchin	  by the [[...]] command is executed has been fixed.
978da2e3ebdSchin05-04-08  Redirection operators can be directly preceded with {varname}
979da2e3ebdSchin	  with no intervening space, where varname is a variable name which
980da2e3ebdSchin	  allows the shell to select a file descriptor > 10 and store it
981da2e3ebdSchin	  into varname.
982da2e3ebdSchin05-04-08  SHOPT_CMDLIB_BLTIN=1 now includes <cmdlist.h> generated table.
983da2e3ebdSchin05-04-07  [[ -o ?option ]] is true if "option" is a supported option.
984da2e3ebdSchin05-04-05  A bug in handling file completion with spaces in the names
985da2e3ebdSchin          has been fixed.
986da2e3ebdSchin05-03-25  The SIGWINCH signal is caught by default to keeps the LINES and
987da2e3ebdSchin	  COLUMNS variables in sync with the actual window size.
988da2e3ebdSchin05-03-25  Building ksh with SHOPT_REMOTE=1 causes ksh to set --rc if stdin is
989da2e3ebdSchin	  a socket (presumably part of a remote shell invocation.)
990da2e3ebdSchin05-03-25  Building ksh with SHOPT_SYSRC=1 causes interactive ksh to source
991da2e3ebdSchin	  /etc/ksh.kshrc (if it exists) before sourcing the $ENV file.
992da2e3ebdSchin05-03-25  {first..last[..incr][%fmt]} sequences added to brace expansions
993da2e3ebdSchin	  when braceexpand is enabled.
994da2e3ebdSchin05-03-03  A bug where a SIGCHLD interrupt could cause a fifo open to fail has
995da2e3ebdSchin	  been fixed.
996da2e3ebdSchin05-02-25  A bug in which a builtin command run in the background could
997da2e3ebdSchin	  keep a file descriptor open which could cause a foreground
998da2e3ebdSchin	  process to hang has been fixed.
999da2e3ebdSchin05-02-24  A bug where builtin library commands (e.g., date and TZ) failed to
1000da2e3ebdSchin	  detect environment variable changes has been fixed.
1001da2e3ebdSchin05-02-22  The read builtin and word splitting are now consistent with respect
1002da2e3ebdSchin	  to IFS -- both treat IFS as field delimiters.
1003da2e3ebdSchin05-02-22  The read builtin no longer strips off trailing delimiters that
1004da2e3ebdSchin	  are not space characters when there are fewer variables than fields.
1005da2e3ebdSchin05-02-17  A builtin bug on systems where dlsym(libcmd) returns link-time
1006da2e3ebdSchin	  bindings has been fixed.
1007da2e3ebdSchin05-02-12  A bug in which the lib_init() function for .paths BUILTIN_LIB
1008da2e3ebdSchin	  libraries was not called has been fixed.
1009da2e3ebdSchin05-02-06  A bug on some systems in which moving the write end of a co-process
1010da2e3ebdSchin	  to a numbered file descriptor could cause it to close has been fixed.
1011da2e3ebdSchin05-02-06  A bug in the vi-edit mode in which the character under the cursor
1012da2e3ebdSchin	  was not deleted in some cases with the d% directive has been fixed.
1013da2e3ebdSchin05-02-06  A bug where external builtin stdout/stderr redirection corrupted
1014da2e3ebdSchin          stdout has been fixed.
1015da2e3ebdSchin05-02-04  A bug where times formatting assumed CLK_TCK==60 has been fixed.
1016da2e3ebdSchin
1017da2e3ebdSchin05-01-11  --- Release ksh93q  ---
1018da2e3ebdSchin05-01-11  A bug in the integral divide by zero check has been fixed.
1019da2e3ebdSchin05-01-11  The -l option has been added to read /etc/profile and
1020da2e3ebdSchin	  $HOME/.profile, if they exist, before the first command.
1021da2e3ebdSchin05-01-11  An argument parsing bug that caused `kill -s x -- n' to fail has
1022da2e3ebdSchin	  been fixed.
1023da2e3ebdSchin05-01-11  The .paths file, introduced in ksh93m, which can appear in
1024da2e3ebdSchin	  any directory in PATH, now allows a line of the form 'BUILTIN_LIB=.'
1025da2e3ebdSchin	  When a command is searched for this directory, and the full path
1026da2e3ebdSchin	  matches the path of the built-in version of the command (listed
1027da2e3ebdSchin	  by the 'builtin' command) then the built-in version of the command
1028da2e3ebdSchin	  is used.  When ksh is built with SHOPT_CMDLIB_DIR=1 then all libcmd
1029da2e3ebdSchin	  functions become builtins with the '/opt/ast/bin/' directory prefix.
1030da2e3ebdSchin05-01-10  A bug in which a nameref to a compound name caused a core dump has
1031da2e3ebdSchin	  been fixed.
1032da2e3ebdSchin05-01-09  A bug in which some SIGCHLD interrupts (from child processes exiting)
1033da2e3ebdSchin	  caused a fatal print/echo error diagnostic has been fixed.
1034da2e3ebdSchin04-12-24  A bug in which some SIGCHLD interrupts (from child processes exiting)
1035da2e3ebdSchin          corrupted the internal process/job list, sometimes causing the shell
1036da2e3ebdSchin	  to hang, has been fixed.
1037da2e3ebdSchin04-12-01  A bug in which typeset -Fn truncated less than n digits for large
1038da2e3ebdSchin	  numbers has been fixed.
1039da2e3ebdSchin04-11-25  A bug in which standard error could be closed after a redirection
1040da2e3ebdSchin	  to /dev/stderr has been fixed.
1041da2e3ebdSchin04-11-17  A bug in which an expansion of the form ${array[@]:3} could expand
1042da2e3ebdSchin          to ${array[0]} when ${array[3]} was not set has been fixed.
1043da2e3ebdSchin04-10-22  The -E or -orc command line option reads ${ENV-$HOME/.kshrc} file.
1044da2e3ebdSchin04-10-22  `-o foo' equivalent to `+o nofoo', `-o nobar' equivalent to `+o bar'.
1045da2e3ebdSchin          `--foo' equivalent to `-o foo', `--nofoo' equivalent to `+o foo'
1046da2e3ebdSchin04-10-05  The .paths file, introduced in ksh93m, which can appear in
1047da2e3ebdSchin	  any directory in PATH, now allows a line of the form
1048da2e3ebdSchin	  'BUILTIN_LIB=libname'.  When a command is searched for this directory,
1049da2e3ebdSchin	  the shared library named by libname will first be searched for a
1050da2e3ebdSchin	  built-in version of the command.
1051da2e3ebdSchin04-09-03  <<< here documents now handle quotes in the word token correctly.
1052da2e3ebdSchin04-08-08  The maximum size for read -n and and read -N was increased from
1053da2e3ebdSchin	  4095 to 32M.
1054da2e3ebdSchin04-08-04  printf %q was modified so that if an no operand was supplied, no
1055da2e3ebdSchin	  no output would be generated rather than a quoted empty string.
1056da2e3ebdSchin04-08-01  The -n and -N options of the read builtin has been modified
1057da2e3ebdSchin	  when reading variables with the binary attribute so that the
1058da2e3ebdSchin	  data is stored directly rather than through assignment.
1059da2e3ebdSchin04-08-01  The shcomp command has been modified to process alias commands
1060da2e3ebdSchin	  under some conditions.
1061da2e3ebdSchin04-07-31  The .sh.match variable added in ksh93l, now works like other
1062da2e3ebdSchin	  indexed arrays.
1063da2e3ebdSchin04-07-08  A loop optimizer bug which occurs when typeset is used in
1064da2e3ebdSchin	  a for or while loop inside a function has been fixed.
1065da2e3ebdSchin04-06-24  The number of subexpressions in a pattern was increased to 64
1066da2e3ebdSchin	  from the current number of 20.
1067da2e3ebdSchin04-06-17  The -t option to read was modified to allow seconds to be
1068da2e3ebdSchin	  specified as any arithmetic expression rather than just
1069da2e3ebdSchin	  an integral number of seconds, for example even -t 'sin(.5)'
1070da2e3ebdSchin	  is now valid.
1071da2e3ebdSchin04-06-16  Two small memory leak problems were fixed.
1072da2e3ebdSchin04-06-15  A bug in ${var/pattern/"string"} which occurred when string
1073da2e3ebdSchin	  contained pattern matching characters has been fixed.
1074da2e3ebdSchin04-05-08  printf $'%d\n' produced an erroneous error message and has
1075da2e3ebdSchin	  been fixed.
1076da2e3ebdSchin04-05-24  A bug in which an associative array without any elements could
1077da2e3ebdSchin	  cause a core dump when a script with an associative array with
1078da2e3ebdSchin	  the same name was declared in a script invoked by name has
1079da2e3ebdSchin	  been fixed.
1080da2e3ebdSchin04-05-11  A bug in which an exec statement could close the script that
1081da2e3ebdSchin	  is being processed in a script that is run by name causing
1082da2e3ebdSchin	  a failure has been fixed.
1083da2e3ebdSchin04-04-28  If the first character of assignment to an integer variable was 0,
1084da2e3ebdSchin          the variable had been treated as unsigned.  This behavior was
1085da2e3ebdSchin          undocumented and has been removed.
1086da2e3ebdSchin04-04-05  A bug in which the positioning of standard input could be incorrect
1087da2e3ebdSchin	  after reading from standard input from a subshell has been fixed.
1088da2e3ebdSchin04-03-30  A bug in the for loop optimizer which in rare cases could cause
1089da2e3ebdSchin	  memory corruption has been fixed.
1090da2e3ebdSchin04-03-29  The preset alias source='command .' has been added.
1091da2e3ebdSchin04-03-29  A bug introduced in ksh93p on some systems in which invoked by
1092da2e3ebdSchin	  name with #! on the first line would not get the signals handling
1093da2e3ebdSchin	  initialized correctly has been fixed.
1094da2e3ebdSchin04-03-29  A bug introduced in ksh93p in which a HUP signal received by
1095da2e3ebdSchin	  a shell that is a session group leader was not passed down to
1096da2e3ebdSchin	  its children has been fixed.
1097da2e3ebdSchin
1098da2e3ebdSchin04-02-28  --- Release ksh93p  ---
1099da2e3ebdSchin04-02-28  The ability to apply an append discipline to any variable has
1100da2e3ebdSchin	  been added.
1101da2e3ebdSchin04-02-14  A bug in which the exportall option (set -a) would cause incorrect
1102da2e3ebdSchin	  results for arrays has been fixed.
1103da2e3ebdSchin04-02-02  A bug in which an exported array would pass more than
1104da2e3ebdSchin	  the first element to a script invoked by name has been fixed.
1105da2e3ebdSchin04-02-02  A bug on some systems in which name=value pairs preceding a script
1106da2e3ebdSchin	  invoked by name was not getting passed to the script has been fixed.
1107da2e3ebdSchin04-01-20  A bug in which an unset discipline function could cause a core
1108da2e3ebdSchin	  dump on some systems has been fixed.
1109da2e3ebdSchin04-01-12  A bug in which a continue or break called outside a loop from
1110da2e3ebdSchin	  inside a function defined with name() syntax could affect
1111da2e3ebdSchin	  the invoking function has been fixed.
1112da2e3ebdSchin04-01-08  If a command name begins with ~, only filename completion will be
1113da2e3ebdSchin	  attempted rather than pathname completion using the builtin editors.
1114da2e3ebdSchin04-01-08  A bug in the vi edit mode in which the wrong repeat count on
1115da2e3ebdSchin	  multiple word replacements with the . directive has been fixed.
1116da2e3ebdSchin04-01-06  Backspace characters are now handled correctly in prompt strings.
1117da2e3ebdSchin04-01-06  The getopts builtin has been modified to accept numerical
1118da2e3ebdSchin	  arguments of size long long on systems that support this.
1119da2e3ebdSchin04-01-06  A bug in which unsetting all elements of an associative array
1120da2e3ebdSchin	  would cause it to be treated as an indexed array has been fixed.
1121da2e3ebdSchin03-12-15  A bug in which a quoted string ending with an unescaped $ would
1122da2e3ebdSchin	  delete the ending $ in certain cases has been fixed.
1123da2e3ebdSchin03-12-05  A bug in which the shell could hang when set -x tracing a command
1124da2e3ebdSchin	  when an invalid multibyte character is encountered has been fixed.
1125da2e3ebdSchin03-12-05  On some systems, if the KEYBD trap is set, then commands that use
1126da2e3ebdSchin	  the meta key were not processed until return was hit.  This
1127da2e3ebdSchin	  has been fixed.
1128da2e3ebdSchin03-12-05  A problem which occurred when the login shell was not a group
1129da2e3ebdSchin	  leader that could cause it to fail has been fixed.
1130da2e3ebdSchin03-12-05  A problem in which a shell could core dump after receiving a signal
1131da2e3ebdSchin	  that should cause it to terminate while it was in the process
1132da2e3ebdSchin	  of acquiring more space has been fixed.
1133da2e3ebdSchin03-12-05  If ENV is not specified, the shell will default to $HOME/.kshrc
1134da2e3ebdSchin	  for interactive shells.
1135da2e3ebdSchin03-11-21  A bug introduced in ksh93o in which the DEBUG trap could get
1136da2e3ebdSchin	  disabled after it triggered has been fixed.
1137da2e3ebdSchin03-11-04  A bug in which using arithmetic prefix operators ++ or -- on a
1138da2e3ebdSchin	  non-lvalue could cause a core dump has been fixed.
1139da2e3ebdSchin03-11-04  A bug in which leading zeros were stripped from variable
1140da2e3ebdSchin	  expansions within arithmetic computation to avoid being treated
1141da2e3ebdSchin	  as octal constants when they should not have, has been fixed.
1142da2e3ebdSchin03-10-08  A bug introduced in ksh93o in which a large here document inside
1143da2e3ebdSchin	  a function definition could get corrupted has been fixed.
1144da2e3ebdSchin03-09-22  A bug in which the .get discipline function was not being
1145da2e3ebdSchin	  called when a string variable was implicitly referenced from
1146da2e3ebdSchin	  within a numerical expression has been fixed.
1147da2e3ebdSchin03-09-22  A bug in which a script without a leading #! could get executed
1148da2e3ebdSchin	  by /bin/sh rather than the current shell on some systems has
1149da2e3ebdSchin	  been fixed.
1150da2e3ebdSchin03-09-12  To improve conformance with ksh88, leading zeros will be ignored
1151da2e3ebdSchin	  when getting the numerical value of a string variable so that
1152da2e3ebdSchin	  they will not be treated as octal constants.
1153da2e3ebdSchin03-09-03  The builtin kill command now processes obsolete invocations
1154da2e3ebdSchin	  such as kill -1 -pid.
1155da2e3ebdSchin03-09-02  The restriction on modifying FPATH in a restricted shell (sh -r)
1156da2e3ebdSchin	  has been documented.
1157da2e3ebdSchin03-09-02  The restricted shell (sh -r) has been modified to disallow
1158da2e3ebdSchin	  executing command -p.
1159da2e3ebdSchin03-08-07  A bug in which the KEYBD trap was not being invoked when
1160da2e3ebdSchin	  characters with the 8th bit set has been fixed.
1161da2e3ebdSchin03-08-02  A parser bug introduced in ksh93o which caused the character
1162da2e3ebdSchin	  after () in a Posix function definition to be skipped
1163da2e3ebdSchin	  when reading from standard input has been fixed.
1164da2e3ebdSchin03-08-01  A bug in which "${foo#pattern}(x)" treated (x) as if it were
1165da2e3ebdSchin	  part of the pattern has been fixed.
1166da2e3ebdSchin03-08-01  The command -x option has been modified so that any trailing
1167da2e3ebdSchin	  arguments that do expand to a single word will be included
1168da2e3ebdSchin	  on each invocation, so that commands like command -x mv * dir
1169da2e3ebdSchin	  work as expected.
1170da2e3ebdSchin
1171da2e3ebdSchin03-07-20  --- Release ksh93o+  ---
1172da2e3ebdSchin03-07-20  A bug in which could cause memory corruption when a posix
1173da2e3ebdSchin	  function invoked another one has been fixed.
1174da2e3ebdSchin03-07-15  A bug in which a file descriptor>2 could be closed before
1175da2e3ebdSchin	  executing a script has been fixed.
1176da2e3ebdSchin03-07-15  A parsing error for <() and >() process substitutions inside
1177da2e3ebdSchin	  command substitution has been fixed.
1178da2e3ebdSchin03-07-15  A parsing error for patterns of the form {...}(...) when
1179da2e3ebdSchin	  used inside ${...} has been fixed.
1180da2e3ebdSchin03-07-15  An error in which expanding an indexed array inside a compound
1181da2e3ebdSchin	  variable could cause a core dump has been fixed.
118234f9b3eeSRoland Mainz03-07-15  A bug in which on rare occasions a job completion interrupt
1183da2e3ebdSchin	  could cause to core dump has been fixed.
1184da2e3ebdSchin03-06-26  A bug in which process substitution embedded within command
1185da2e3ebdSchin	  substitution would generate a syntax error has been fixed.
1186da2e3ebdSchin03-96-23  A bug in which ${@:offset:len} could core dump when there
1187da2e3ebdSchin	  were no arguments has been fixed.
1188da2e3ebdSchin03-96-23  A bug in which ${X[@]:offset:len} could core dump when X
1189da2e3ebdSchin	  was unset has been fixed.
1190da2e3ebdSchin03-06-22  The -x option was added to the command builtin.  If this
1191da2e3ebdSchin	  option is on, and the number of arguments would exceed ARG_MAX,
1192da2e3ebdSchin	  the command will be invoked multiple times with a subset of
1193da2e3ebdSchin	  the arguments.  For example, with alias grep='command -x grep,
1194da2e3ebdSchin	  any number of arguments can be specified.
1195da2e3ebdSchin03-06-14  A bug in which could cause a core dump on some systems with
1196da2e3ebdSchin	  vi and emacs editors with the MULTIBYTE option has been fixed.
1197da2e3ebdSchin03-06-06  A bug in which the shell could core dump when a script was
1198da2e3ebdSchin	  run from its directory, and the script name a symlink to a file
1199da2e3ebdSchin	  beginning with .., has been fixed.
1200da2e3ebdSchin03-06-05  A bug in which the shell could core dump when a child process
1201da2e3ebdSchin	  that it is unaware of terminates while it is calling malloc()
1202da2e3ebdSchin	  has been fixed.
1203da2e3ebdSchin03-06-02  An option named globstar (set -G) has been added.  When enabled,
1204da2e3ebdSchin	  during pathname expansion, any component that consists only of ** is
1205da2e3ebdSchin	  matches all files and any number of directory levels.
1206da2e3ebdSchin03-05-30  A bug in which the PATH search could give incorrect results when
1207da2e3ebdSchin	  run from directory foo and PATH contained .:foo:xxx has been fixed.
1208da2e3ebdSchin03-05-29  Some changes were made to the code that displays the prompt in edit
1209da2e3ebdSchin	  mode to better handle escape sequences in the prompt.
1210da2e3ebdSchin03-05-27  I added = to the list of characters that mark the beginning of
1211da2e3ebdSchin	  a word for edit completion so that filenames in assignments
1212da2e3ebdSchin	  can be completed.
1213da2e3ebdSchin03-05-20  A bug in which read -N could hang on some systems when reading
1214da2e3ebdSchin	  from a terminal or a pipe has been fixed.
1215da2e3ebdSchin03-05-19  A bug in which the output of uname from a command substitution
1216da2e3ebdSchin	  would go to the standard output of the invoking command when
1217da2e3ebdSchin	  uname was invoked with a non-standard option has been fixed.
1218da2e3ebdSchin03-05-19  A job control bug which would cause the shell to exit because
1219da2e3ebdSchin	  it hadn't take back the terminal has been fixed.  The bug
1220da2e3ebdSchin	  could occur when running a function that contained a pipeline
1221da2e3ebdSchin	  whose last element was a function.
1222da2e3ebdSchin03-05-19  A job control timing bug introduced in ksh93o on some systems
1223da2e3ebdSchin	  which could cause a pipeline to hang if the first component
1224da2e3ebdSchin	  completed quickly has been fixed.
1225da2e3ebdSchin03-05-13  The read builtin has been modified so that the builtin editors
1226da2e3ebdSchin	  will not overwrite output from a previous incomplete line.
1227da2e3ebdSchin03-05-13  A bug in which the name of an identifier could have the string
1228da2e3ebdSchin	  .sh. prefixed to it after expanding a variable whose name begins
1229da2e3ebdSchin	  with .sh. has been fixed.
1230da2e3ebdSchin03-05-13  A bug in the expansion of $var for compound variables in which
1231da2e3ebdSchin	  some elements would not be output when the name was a prefix
1232da2e3ebdSchin	  of another name in the compound variable has been fixed.
1233da2e3ebdSchin03-05-08  The last item in the ksh93o release on 03-01-02 has been
1234da2e3ebdSchin	  altered slightly to preserve the leading 0's when the
1235da2e3ebdSchin	  preceding character is a digit.  Thus, with typeset -LZ3 x=10,
1236da2e3ebdSchin	  $(( 1$x)) will be 1010 whereas $(( $x) will be 10.
1237da2e3ebdSchin03-04-25  A bug in which if x is a name reference, then nameref y=x.foo
1238da2e3ebdSchin	  did not follow x has been fixed.
1239da2e3ebdSchin
1240da2e3ebdSchin03-03-18  --- Release ksh93o  ---
1241da2e3ebdSchin03-03-18  A -N unary operator was added to test and [[...]] which returns
1242da2e3ebdSchin	  true if the file exists and the file has been modified since it
1243da2e3ebdSchin	  was last read.
1244da2e3ebdSchin03-03-18  The TIMEFORMAT variable was added to control the format for
1245da2e3ebdSchin	  the time compound command.  The formatting description is
1246da2e3ebdSchin	  described in the man page.
1247da2e3ebdSchin03-03-06  A -N n option was added to read which causes exactly n bytes
1248da2e3ebdSchin	  to be read unlike -n n which causes at most n bytes to be read.
1249da2e3ebdSchin03-03-03  Three new shell variables were added.  The variable .sh.file
1250da2e3ebdSchin	  stores the full pathname of the file that the current command
1251da2e3ebdSchin	  was found in.  The variable .sh.fun names the current function
1252da2e3ebdSchin	  that is running.  The variable .sh.subshell contains the depth
1253da2e3ebdSchin	  of the current subshell or command substitution.
1254da2e3ebdSchin03-03-03  When the DEBUG trap is executed, the current command line after
1255da2e3ebdSchin	  expansions is placed in the variable .sh.command.  The trap
1256da2e3ebdSchin	  is also now triggered before each iteration of a for, select,
1257da2e3ebdSchin	  and case command and before each assignment and redirection.
1258da2e3ebdSchin03-02-28  Function definitions are no longer stored in the history file so
1259da2e3ebdSchin	  that set -o nolog no longer has any meaning.
1260da2e3ebdSchin03-02-28  All function definitions can be displayed with typeset -f not
1261da2e3ebdSchin	  just those stored in the history file.  In addition, typeset +f
1262da2e3ebdSchin	  displays the function name followed by a comment containing the
1263da2e3ebdSchin	  line number and the path name for the file that defined this function.
1264da2e3ebdSchin03-02-28  A bug in which the value of $LINENO was not correct when executing
1265da2e3ebdSchin	  command contained inside mult-line command substitutions has been
1266da2e3ebdSchin	  fixed.
1267da2e3ebdSchin03-02-19  Since some existing ksh88 scripts use the undocumented and
1268da2e3ebdSchin	  unintended ability to insert a : in front of the % and # parameter
1269da2e3ebdSchin	  expansion operators, ksh93 was modified to accept :% as equivalent
1270da2e3ebdSchin	  to % and :# as equivalent to # with ${name op word}.
1271da2e3ebdSchin03-02-14  A bug which could cause a core dump when reading from standard
1272da2e3ebdSchin	  error when standard error was a pty has been fixed.
1273da2e3ebdSchin03-02-14  The shell arithmetic was modified to use long double on systems
1274da2e3ebdSchin	  that provide this data type.
1275da2e3ebdSchin03-02-09  A bug in which a function located in the first directory in FPATH
1276da2e3ebdSchin	  would not be found when the last component of PATH was . and the
1277da2e3ebdSchin	  current directory was one of the directories in PATH has been fixed.
1278da2e3ebdSchin03-02-07  The trap and kill builtin commands now accept a leading SIG prefix
1279da2e3ebdSchin	  on the signal names as documented.
1280da2e3ebdSchin03-02-05  A bug in the expansion of ${var/$pattern}, when pattern contained
1281da2e3ebdSchin	  \[ has been fixed.
1282da2e3ebdSchin03-02-05  A bug in which .sh.match[n], n>0, was not being set for substring
1283da2e3ebdSchin	  matches with % and %% has been fixed.
1284da2e3ebdSchin03-01-15  A bug in which getopts did not work for numerical arguments specified
1285da2e3ebdSchin	  as n#var in the getopts string has been fixed.
1286da2e3ebdSchin03-01-09  A bug in which using ${.sh.match} multiple times could lead to
1287da2e3ebdSchin	  a memory exception has been fixed.
1288da2e3ebdSchin03-01-06  A bug in the expansion of ${var/pattern/$string} in the case that
1289da2e3ebdSchin	  $string contains \digit has been fixed.
1290da2e3ebdSchin03-01-02  A -P option was added for systems such as Solaris 8 that support
1291da2e3ebdSchin	  profile shell.
1292da2e3ebdSchin03-01-02  For backward compatibility with ksh88, arithmetic expansion
1293da2e3ebdSchin	  with ((...)) and let has been modified so that if x is a zero-filled
1294da2e3ebdSchin	  variable, $x will not be treated as an octal constant.
1295da2e3ebdSchin
1296da2e3ebdSchin02-12-05  --- Release ksh93n+  ---
1297da2e3ebdSchin02-11-30  A bug that can show up in evaluating arithmetic statements that
1298da2e3ebdSchin	  are in an autoloaded function when the function is autoload from
1299da2e3ebdSchin	  another function has been fixed.
1300da2e3ebdSchin02-11-30  An optimization bug in which an expansion of the form ${!name.@},
1301da2e3ebdSchin	  which occurred inside a for or a while loop, when name is a name
1302da2e3ebdSchin	  reference, has been fixed.
1303da2e3ebdSchin02-11-18  A bug in which modifying array variables in a subshell could leave
1304da2e3ebdSchin	  side effects in the parent shell environment has been fixed.
1305da2e3ebdSchin02-11-18  A memory leak when unsetting an associative array has been fixed.
1306da2e3ebdSchin02-11-14  The code to display compound objects was rewritten to make
1307da2e3ebdSchin	  it easier for runtime extensions to reuse this code.
1308da2e3ebdSchin02-11-14  A change was made to allow runtime builtins to be notified when
1309da2e3ebdSchin	  a signal is received so that cleanup can be performed.
1310da2e3ebdSchin02-10-31  User applications can now trap the ALRM signal.  Previously,
1311da2e3ebdSchin	  the ALRM signal was used internally and could not be used
1312da2e3ebdSchin	  by applications.
1313da2e3ebdSchin02-10-31  A bug in which signals received while reading from a coprocess
1314da2e3ebdSchin	  for which traps were set was not handled correctly has been fixed.
1315da2e3ebdSchin02-10-31  A bug in which a file opened with exec inside a subshell could
1316da2e3ebdSchin	  be closed before the subshell completed has been fixed.
1317da2e3ebdSchin02-10-21  A bug in which setting PATH or FPATH inside a function might not
1318da2e3ebdSchin	  take effect has been fixed.
1319da2e3ebdSchin02-10-21  A bug which could cause a core dump when a local SECONDS variable
1320da2e3ebdSchin	  is defined in a function has been fixed.
1321da2e3ebdSchin02-10-15  A bug in which the associate array name operator ${!array[@]}
1322da2e3ebdSchin	  could return the same name multiple times has been fixed.
1323da2e3ebdSchin02-10-15  A bug in which the zero'th element of an associative array was
1324da2e3ebdSchin	  not getting set when an assignment was made without a subscript
1325da2e3ebdSchin	  specified has been fixed.
1326da2e3ebdSchin
1327da2e3ebdSchin02-09-30  --- Release ksh93n  ---
1328da2e3ebdSchin02-09-30  The maximum indexed array size was increased to 16Megs.
1329da2e3ebdSchin02-09-30  A bug which could cause a core dump when changing attributes
1330da2e3ebdSchin	  of associative array has been fixed.
1331da2e3ebdSchin02-09-30  A bug in which exporting an array variable would not export the
1332da2e3ebdSchin	  0-th element has been fixed.
1333da2e3ebdSchin02-09-30  A bug in which an array assignment of the form a=($a ...) would unset
1334da2e3ebdSchin	  'a' before the right hand side was evaluated has been fixed.
1335da2e3ebdSchin02-09-27  A bug in which the error message for ${var?message} when var was
1336da2e3ebdSchin	  null or unset did not contain the variable name var has been fixed.
1337da2e3ebdSchin02-09-27  A bug in which closing file descriptors 0 through 2 could
1338da2e3ebdSchin	  cause a subsequent here document to fail has been fixed.
1339da2e3ebdSchin02-09-14  A bug in whence which occurs when the specified name contained
1340da2e3ebdSchin	  a / has been fixed.
1341da2e3ebdSchin02-09-14  A bug in the parser for strings of the form name$((expr))=value
1342da2e3ebdSchin	  has been fixed.
1343da2e3ebdSchin02-09-14  A for loop optimization bug in which the number of elements in
1344da2e3ebdSchin	  an array was treated as an invariant has been fixed.
1345da2e3ebdSchin02-09-09  A bug in which redirection or closing of a file descriptor between
1346da2e3ebdSchin	  3 and 9 could cause a subsequent here document to fail has been
1347da2e3ebdSchin	  fixed.
1348da2e3ebdSchin02-09-09  A bug in which a background job was not removed from the job list
1349da2e3ebdSchin	  when a subshell completed has been fixed, for example (prog&).
1350da2e3ebdSchin02-09-03  A bug in which an assignment of the form name=(integer x=3)
1351da2e3ebdSchin	  could be interpretted as an array assignment rather than a
1352da2e3ebdSchin	  compound variable assignment has been fixed.
1353da2e3ebdSchin02-08-19  A command completion bug which occurred on file systems that
1354da2e3ebdSchin	  are case insensitive has been fixed.
1355da2e3ebdSchin02-08-19  A bug which could lead to an exception on some systems (for
1356da2e3ebdSchin	  example FREEBSD) which occurred when setting PATH has been fixed.
1357da2e3ebdSchin02-08-11  A bug in arithmetic rounding in which a value input as a decimal
1358da2e3ebdSchin	  string would output as a rounded version of the string has
1359da2e3ebdSchin	  been fixed.
1360da2e3ebdSchin02-08-11  A bug in which the last character could be deleted from shell
1361da2e3ebdSchin	  traces and from whence when called from a multibyte locale
1362da2e3ebdSchin	  has been fixed.
1363da2e3ebdSchin02-08-01  A bug which could cause a core dump to occur when a shell script
1364da2e3ebdSchin	  is executed while a coprocess is running that has closed the
1365da2e3ebdSchin	  output pipe has been fixed.
1366da2e3ebdSchin02-08-01  A bug in which command completion in multibyte mode could
1367da2e3ebdSchin	  corrupt memory for long command lines has been fixed.
1368da2e3ebdSchin
1369da2e3ebdSchin02-06-17  --- Release ksh93n-  ---
1370da2e3ebdSchin02-06-17  A bug in which user defined macros could cause a core dump in
13717c2fbfb3SApril Chin	  with MULTIBYTE mode has been fixed.
1372da2e3ebdSchin02-06-17  A bug in which printf format specifiers of the form %2$s were causing
1373da2e3ebdSchin	  a core dump has been fixed.
1374da2e3ebdSchin02-06-17  A bug in which setting stty to noecho mode did not prevent the
1375da2e3ebdSchin	  echoing of characters by ksh when emacs or viraw mode
1376da2e3ebdSchin	  was enabled has been fixed.
1377da2e3ebdSchin02-06-17  A bug in which background job completion could cause the sleep
1378da2e3ebdSchin	  builtin to terminate prematurely has been fixed.
1379da2e3ebdSchin02-06-17  A bug in which the shell could core dump if getopts was called
1380da2e3ebdSchin	  when the OPTIND variable contained a negative value has been fixed.
1381da2e3ebdSchin02-06-10  The edit mode prompt has been modified to handle escape sequences.
1382da2e3ebdSchin02-06-10  A bug which occurred for interactive shells in which the builtin
1383da2e3ebdSchin	  cat command was used in command substitution on a file whose
1384da2e3ebdSchin	  size was larger than PIPE_BUF has been fixed.
1385da2e3ebdSchin02-06-10  A bug in which the trap on ERR was not being processed when
1386da2e3ebdSchin	  set inside a function has been fixed.
1387da2e3ebdSchin02-06-07  A bug in which function definitions could cause the history count
1388da2e3ebdSchin	  to be decremented by one (and even become negative) has been fixed.
1389da2e3ebdSchin02-06-05  A bug in read in which share mode could be enabled has been fixed.
1390da2e3ebdSchin02-05-28  A bug which could occur when the last command of a script was
1391da2e3ebdSchin	  a case statement and the action selected ended in ;& instead of ;;
1392da2e3ebdSchin	  has been fixed.
1393da2e3ebdSchin02-05-23  A bug with unary + introduced in ksh93k has been fixed.
1394da2e3ebdSchin02-05-07  A bug in substitutions of the form ${var/pattern/string} in which
1395da2e3ebdSchin	  a backslash was inserted in the replacement string when it contained
1396da2e3ebdSchin	  a special pattern character has been fixed.
1397da2e3ebdSchin02-05-01  A bug in the emacs edit mode which occurred in versions compiled
1398da2e3ebdSchin	  for multibyte character sets which occurred when a repeated search
1399da2e3ebdSchin	  was requested after a long line had been returned for the previous
1400da2e3ebdSchin	  search has been fixed.
1401da2e3ebdSchin02-04-02  vi and emacs edit modes were modified so that tab completion is
1402da2e3ebdSchin	  disabled when invoked from the read built-in.
1403da2e3ebdSchin
1404da2e3ebdSchin02-03-26  --- Release ksh93m+  ---
1405da2e3ebdSchin02-03-26  A bug in which \ was not handled correctly when used in file
1406da2e3ebdSchin	  expansion has been fixed.
1407da2e3ebdSchin02-02-18  A bug in which lines beginning with a # were deleted from here
1408da2e3ebdSchin	  documents when the here-document delimiter was followed by
1409da2e3ebdSchin	  a comment has been fixed.
1410da2e3ebdSchin02-12-06  An optimization bug in which ${!x[@]) was treated as invariant in
1411da2e3ebdSchin	  a for loop has been fixed.
1412da2e3ebdSchin02-02-06  A bug in which the ERR trap is not cleared for a script invoked
1413da2e3ebdSchin	  by name from within a function has been fixed.
1414da2e3ebdSchin02-01-08  A bug in which a shell script executed from within a subshell
1415da2e3ebdSchin	  could cause this script to have an invalid pointer leading
1416da2e3ebdSchin	  to a memory fault has been fixed.
1417da2e3ebdSchin02-01-07  Added here documents of the form <<< word (as per zsh) which
1418da2e3ebdSchin	  is equivalent to << delim\nword\ndelim.
1419da2e3ebdSchin02-01-07  A bug in which the first word of a compound assignment,
1420da2e3ebdSchin	  x=(word ...), was treated as a reserved word has been fixed.
1421da2e3ebdSchin02-01-07  A bug in the handling of \ when noglob was enabled and a
1422da2e3ebdSchin	  substitution of the form ${word op pattern} occurred in the
1423da2e3ebdSchin	  same word has been fixed.
1424da2e3ebdSchin02-01-07  A compilation option, CMDLIB_BLTIN in the file OPTION, has
1425da2e3ebdSchin	  been added.  When this options is set, all commands implemented
1426da2e3ebdSchin	  in libcmd become shell builtin commands by default.
1427da2e3ebdSchin02-01-07  A bug in which builtin foo, where foo is already a builtin
1428da2e3ebdSchin	  would result in the builtin foo getting removed has been fixed.
1429da2e3ebdSchin02-01-07  A bug which the shell executed a command found in the current
1430da2e3ebdSchin	  directory when PATH have no valid directories has been fixed.
1431da2e3ebdSchin01-11-28  The value of $? was not being set when called with exit.
1432da2e3ebdSchin01-11-28  If the last command was of the form (...) and a trap on EXIT or
1433da2e3ebdSchin	  ERR was set, and the command inside () modified the trap, then
1434da2e3ebdSchin	  the original trap wasn't executed.
1435da2e3ebdSchin01-11-26  The value for 0 is now preceded by the base number when
1436da2e3ebdSchin	  the base was not 10.
1437da2e3ebdSchin01-11-26  The default has compilation mode has been changes so that
1438da2e3ebdSchin	  viraw mode will always be on.
1439da2e3ebdSchin
1440da2e3ebdSchin01-10-31  --- Release ksh93m  ---
1441da2e3ebdSchin01-10-31  A for loop optimizer bug for subshells contained withing for
1442da2e3ebdSchin	  loops has been fixed.
1443da2e3ebdSchin01-10-16  typeset without arguments no longer outputs variable names
1444da2e3ebdSchin	  that do not have any attributes that are set.
1445da2e3ebdSchin01-10-16  A bug introduced in ksh93l in which assignments specified with
1446da2e3ebdSchin	  the exec built-in were not being expanded properly has been
1447da2e3ebdSchin	  fixed.
1448da2e3ebdSchin01-10-11  An optimization bug in which ${!x) was treated as invariant in
1449da2e3ebdSchin	  a for loop has been fixed.
1450da2e3ebdSchin01-10-11  Unsigned integer variables in bases other than 10 are printed now
1451da2e3ebdSchin	  expand in that base with the base prefix.
1452da2e3ebdSchin01-10-10  A number of typos in the self generating man pages for shell
1453da2e3ebdSchin	  built-ins have been fixed.
1454da2e3ebdSchin01-10-04  The self generated man pages for hist and fc were not working
1455da2e3ebdSchin	  correctly and have been fixed.
1456da2e3ebdSchin01-10-03  Yet another optimizer bug in which shell patterns were
1457da2e3ebdSchin	  treated as invariants has been fixed.
1458da2e3ebdSchin01-09-27  Two bugs relating to multibyte history searches and to find
1459da2e3ebdSchin	  have been fixed.
1460da2e3ebdSchin01-09-27  A bug introduced in ksh93k in which the PATH searching was
1461da2e3ebdSchin	  not restored after running a command with an assignment list
1462da2e3ebdSchin	  has been fixed.
1463da2e3ebdSchin01-09-26  A bug in which a zero filled field was treated as octal when
1464da2e3ebdSchin	  converted to integer has been fixed.
1465da2e3ebdSchin01-09-26  Yet another bug in the optimization of for loops related to
1466da2e3ebdSchin	  recursive functions with break or continue statements has been fixed.
1467da2e3ebdSchin01-09-25  The exponentiation operator ** was added to the shell arithmetic
1468da2e3ebdSchin	  evaluation.  It has higher precedence than * and is left
1469da2e3ebdSchin	  associative.
1470da2e3ebdSchin01-09-25  The code was modified to use the ast multibyte macros
1471da2e3ebdSchin	  and functions for handing multibyte locales.
1472da2e3ebdSchin01-09-25  The expansion ${parameter:offset:length} now handles negative
1473da2e3ebdSchin	  offsets which cause offsets to be measured from the end.
1474da2e3ebdSchin01-09-25  Some spelling errors in the documentation were corrected.
1475da2e3ebdSchin01-09-24  The /dev/tcp/host/port and /dev/udp/host/port now allow
1476da2e3ebdSchin	  the ports to be specified by service name.
1477da2e3ebdSchin01-09-24  The change staring with ksh93g in which the the appropriate
1478da2e3ebdSchin	  library path variable is prepended with a corresponding library
1479da2e3ebdSchin	  directory has been modified.  With the new method, only the
1480da2e3ebdSchin	  library path defined in the file named .paths in the directory
1481da2e3ebdSchin	  where the executable is found will be modified.  See the
1482da2e3ebdSchin	  man page for more details.
1483da2e3ebdSchin01-09-23  The .fpath file (see ksh93h) is no longer looked for in each
1484da2e3ebdSchin	  directory on the path to locate function directories.  The
1485da2e3ebdSchin	  file named .paths is used instead.
1486da2e3ebdSchin01-09-23  A bug in which IFS was not being restored after being changed in
1487da2e3ebdSchin	  a subshell has been fixed.
1488da2e3ebdSchin01-09-16  With the vi and emacs edit modes, after a list of command
1489da2e3ebdSchin	  or functions is generated with = or M-= respectively,
1490da2e3ebdSchin	  any element from the list can be pasted on the command line
1491da2e3ebdSchin	  by preceding the = or M-= with a numeric parameter specifying
1492da2e3ebdSchin	  the position on the list.
1493da2e3ebdSchin01-09-16  A bug in ksh93l caused command completion not to find aliases
1494da2e3ebdSchin	  and functions.  Command listing from the edit mode was presented
1495da2e3ebdSchin	  in reverse order.  This has been fixed.
1496da2e3ebdSchin01-09-13  Another bug in the optimization of for loops related to subshells
1497da2e3ebdSchin	  when traps were set has been fixed.
1498da2e3ebdSchin01-09-07  A change in ksh93l caused brace expansion to stop working
1499da2e3ebdSchin	  and this has been fixed.
1500da2e3ebdSchin01-09-04  A bug introduced in ksh93k in which an arithmetic statement
1501da2e3ebdSchin	  within a function that used name references did not follow the
1502da2e3ebdSchin	  reference has been fixed.
1503da2e3ebdSchin01-09-04  A bug introduced in ksh93l in which export -p did not prefix
1504da2e3ebdSchin	  each export with the word export has been fixed.
1505da2e3ebdSchin01-08-29  A bug in multibyte input which occurred when a partial multibyte
1506da2e3ebdSchin	  character was received has been fixed.
1507da2e3ebdSchin01-08-29  A bug introduced in ksh93l which could cause a core dump
1508da2e3ebdSchin	  when an assignment list containing PATH is specified inside
1509da2e3ebdSchin	  command substitution has been fixed.
1510da2e3ebdSchin01-08-09  Another bug in the optimization of for loops in ksh93l caused
1511da2e3ebdSchin	  errors in recursive functions using local variables that
1512da2e3ebdSchin	  contained for loops has been fixed.
1513da2e3ebdSchin01-07-27  A bug in which IFS would be unset after a command substitution
1514da2e3ebdSchin	  inside a here document has been fixed.
1515da2e3ebdSchin01-07-26  To conform to the POSIX standard, if you invoked ksh name,
1516da2e3ebdSchin	  and name does not contain a /,  it will first try to run
1517da2e3ebdSchin	  one in the current directory whether it is executable or not
1518da2e3ebdSchin	  before doing a path search for an executable script.  Earlier
1519da2e3ebdSchin	  versions first checked for an executable script using the
1520da2e3ebdSchin	  PATH variable.
1521da2e3ebdSchin01-07-23  A bug in which unset -f invoked in a subshell could unset a
1522da2e3ebdSchin	  function defined in the parent has been fixed.
1523da2e3ebdSchin01-07-16  A bug in the optimization of for loops in ksh93l caused
1524da2e3ebdSchin	  name references to be treated as invariants has been fixed.
1525da2e3ebdSchin01-07-09  A bug in which a discipline function applied to a local variable
1526da2e3ebdSchin	  could cause a shell exception has been fixed.  Discipline
1527da2e3ebdSchin	  functions can only be specified for global variables.
1528da2e3ebdSchin
1529da2e3ebdSchin01-06-18  --- Release ksh93l  ---
1530da2e3ebdSchin01-06-18  A bug in assigning integers larger than can be represented as
1531da2e3ebdSchin	  long integers to floating point variables has been fixed.
1532da2e3ebdSchin01-06-18  A bug in the handling of unsigned integers (typeset -ui) has
1533da2e3ebdSchin	  been fixed.
1534da2e3ebdSchin01-06-04  The evaluation of the PS1 prompt no longer effects the value
1535da2e3ebdSchin	  of the $? variable.
1536da2e3ebdSchin01-06-01  A small memory leak from subshells has been fixed.
1537da2e3ebdSchin01-05-22  A bug in which attributes for variables that did not have
1538da2e3ebdSchin	  values would be lost after a subshell has been fixed.
1539da2e3ebdSchin01-05-22  The %R format has been added to convert a shell pattern into
1540da2e3ebdSchin	  an extended regular expression.
1541da2e3ebdSchin01-05-22  The escape sequences \e, \cX, \C[.collating-element.], and
1542da2e3ebdSchin	  \x{hex} have been added to ASCII-C strings and to printf format
1543da2e3ebdSchin	  strings.
1544da2e3ebdSchin01-05-20  Patterns of the form {n}(pattern) and {m,n}(pattern) are now
1545da2e3ebdSchin	  recognized.  The first form matches exactly n of pattern whereas,
1546da2e3ebdSchin	  the second form matches from m to n instances of pattern.
1547da2e3ebdSchin01-05-20  The shell allows *-(pattern), +-(pattern),  ?-(pattern),
1548da2e3ebdSchin	  {m,n}-(pattern}, and @-(pattern) to cause the minimal
1549da2e3ebdSchin	  match of pattern to be selected whenever possible rather
1550da2e3ebdSchin	  than the maximal (greedy) match.
1551da2e3ebdSchin01-05-20  The character class [:word:] has been added to patterns.
1552da2e3ebdSchin	  The word class is the union of [:alnum:] and the character _.
1553da2e3ebdSchin01-05-20  Inside (...) pattern groups, the \ character is now treated
1554da2e3ebdSchin	  specially even when in an enclosing character class.  The
1555da2e3ebdSchin	  sequences, \w, \d, \s are equivalent to the character classes
1556da2e3ebdSchin	  word, digit, and space respectively.  The sequences \W, \D,
1557da2e3ebdSchin	  and \S are their complement sets.
1558da2e3ebdSchin01-05-20  The shell now recognizes pattern groups of the form
1559da2e3ebdSchin	  ~(options:pattern) where options or :pattern can be omitted.
1560da2e3ebdSchin	  Options use the letters + and - to enable and disable options
1561da2e3ebdSchin	  respectively.  The option letters g (greedy), i (ignore case)
1562da2e3ebdSchin	  are used to cause maximal matching and to cause case
1563da2e3ebdSchin	  insensitive matching respectively.  If :pattern is also
1564da2e3ebdSchin	  specified, these options are only in effect while this
1565da2e3ebdSchin	  pattern is being processed.  Otherwise, these options remain
1566da2e3ebdSchin	  in effect until the end of the pattern group that they are contained
1567da2e3ebdSchin	  in or until another ~(...) is encountered.  These pattern groups
1568da2e3ebdSchin	  are not counted with respect to group numbering.
1569da2e3ebdSchin01-05-14  When edit completion, expansion, or listing occurs in the
1570da2e3ebdSchin	  middle of a quoted string, the leading quote is ignored when
1571da2e3ebdSchin	  performing the completion, expansion, or listing.
1572da2e3ebdSchin01-05-14  A small memory leak from subshells has been fixed.
1573da2e3ebdSchin01-05-10  A bug in which open files were not restored after a subshell
1574da2e3ebdSchin	  that had used exec to replace a file has been fixed.
1575da2e3ebdSchin01-05-10  Redirection to a null file name now generates an error message.
1576da2e3ebdSchin01-05-09  The shell now rejects some invalid parameter substitutions that
1577da2e3ebdSchin	  were previously processed in undefined ways.
1578da2e3ebdSchin01-05-09  A bug in which the output of select was not flushed before the
1579da2e3ebdSchin	  read when input did not come from the terminal has been fixed.
1580da2e3ebdSchin01-05-08  A bug in which job ids would not be freed for interactive shells
1581da2e3ebdSchin	  when subshells ran built-ins in the background has been fixed.
1582da2e3ebdSchin01-05-08  The FPATH variable now requires an explicit . to cause the
1583da2e3ebdSchin	  current directory to be treated as a function directory.
1584da2e3ebdSchin01-05-08  A bug in read -n when echo mode was disabled has been fixed.
1585da2e3ebdSchin01-05-07  A bug in which function definitions could be listed as part
1586da2e3ebdSchin	  of the history has been fixed.
1587da2e3ebdSchin01-04-30  This release uses a new and often much faster pattern matcher than
1588da2e3ebdSchin	  earlier releases.
1589da2e3ebdSchin01-04-30  An optimizer now eliminates invariant parameter expansions from
1590da2e3ebdSchin	  for while and until loops.
1591da2e3ebdSchin01-04-30  The variable .sh.match is set after each pattern match (# % or /)
1592da2e3ebdSchin	  in a variable substitution.  The variable .sh.match is an
1593da2e3ebdSchin	  indexed array with element 0 being the complete match.
1594da2e3ebdSchin	  The array is only valid until the next subsequent pattern
1595da2e3ebdSchin	  match or until the value of the variable changes which ever
1596da2e3ebdSchin	  comes first.
1597da2e3ebdSchin01-04-30  A self generating man page has been added to shcomp.  Also,
1598da2e3ebdSchin	  shcomp now stops compiling when it finds an exit or exec
1599da2e3ebdSchin	  command and copies the remainder so that it can be used
1600da2e3ebdSchin	  for standard input.
1601da2e3ebdSchin01-04-30  The shcomp command was modified so that it can work in an
1602da2e3ebdSchin	  EBCIDIC environment and that binary scripts are portable
1603da2e3ebdSchin	  across environments.
1604da2e3ebdSchin01-04-30  A bug in the handling of a trailing : in PATH has been fixed.
1605da2e3ebdSchin01-04-30  A bug in which the builtin version of a command would get invoked
1606da2e3ebdSchin	  even though the full pathname for the command was specified
1607da2e3ebdSchin	  has been fixed.
1608da2e3ebdSchin01-04-30  A bug in which read would loose the last character when
1609da2e3ebdSchin	  reading the last line of a file that did not contain a new-line
1610da2e3ebdSchin	  character has been fixed.
1611da2e3ebdSchin01-04-23  A bug on some systems in which in vi mode the end of file
1612da2e3ebdSchin	  character and end of line character could be swapped has
1613da2e3ebdSchin	  been fixed.
1614da2e3ebdSchin01-04-23  A bug on some systems in which invoking a shell script that
1615da2e3ebdSchin	  did not have execute permission could set the exit value to
1616da2e3ebdSchin	  127 rather than 126 has been fixed.
1617da2e3ebdSchin01-04-20  A bug in which read -n from a pipe would block if fewer than
1618da2e3ebdSchin	  n characters was received has been fixed.
1619da2e3ebdSchin01-04-09  A bug in which invalid patterns, for example, ) by itself,
1620da2e3ebdSchin	  was not treated as a string has been fixed so that if i=')',
1621da2e3ebdSchin	  then [[ $i == $i ]] is true.
1622da2e3ebdSchin01-04-09  The shell arithmetic now interprets C character constants.
1623da2e3ebdSchin01-04-09  A bug in which a non-zero return from a function defined
1624da2e3ebdSchin	  with the function reserved word did not trigger the ERR
1625da2e3ebdSchin	  trap or exit with set -e has been fixed.
1626da2e3ebdSchin01-04-02  A bug on some systems, in which characters above 127 were
1627da2e3ebdSchin	  not displayed correctly in vi or emacs edit mode has been fixed.
1628da2e3ebdSchin01-04-02  A bug on some systems, introduced in the 'k' point release, in
1629da2e3ebdSchin	  which the erase character in viraw mode was moving the cursor
1630da2e3ebdSchin	  to the left without erasing the character has been fixed.
1631da2e3ebdSchin01-04-02  On some systems the wcwith() function was returning a wrong
1632da2e3ebdSchin	  value for characters and caused characters to be displayed
1633da2e3ebdSchin	  incorrectly from the shell edit modes.  A work around for
1634da2e3ebdSchin	  this problem has been added.
1635da2e3ebdSchin01-03-26  A bug in which valid scripts could produce syntax errors
1636da2e3ebdSchin	  when run with locales that considered characters such as "'"
1637da2e3ebdSchin	  to be space characters has been fixed.
1638da2e3ebdSchin01-03-20  A bug in which an syntax error in an arithmetic expression
1639da2e3ebdSchin	  entered interactively could cause the shell to go into
1640da2e3ebdSchin	  an infinite loop outputting the error message has been fixed.
1641da2e3ebdSchin01-03-10  ksh93 accepts -l as a synonym for -L in test on systems for
1642da2e3ebdSchin	  which /bin/test -l tests for symbolic links.
1643da2e3ebdSchin01-03-10  A bug in parsing scripts in which { and } are used in place of
1644da2e3ebdSchin	  in and esac in case statements embedded in compound commands
1645da2e3ebdSchin	  has been fixed.  Use of { and } for in and esac is obsolete.
1646da2e3ebdSchin01-03-06  A bug in which an argument of the form foo=bar was not
1647da2e3ebdSchin	  being passed correctly to a traced function whose name
1648da2e3ebdSchin	  was foo has been fixed.
1649da2e3ebdSchin01-03-02  Using $(trap -p name) did not print the name of the current
1650da2e3ebdSchin	  trap setting for trap name.
1651da2e3ebdSchin01-02-26  Exported floating point variables gave incorrect results
1652da2e3ebdSchin	  when passing them to ksh88.  This has been fixed.
1653da2e3ebdSchin01-02-25  A race condition in which a coprocess which completed too quickly
1654da2e3ebdSchin	  would not allow subsequent coprocesses to start has been fixed.
1655da2e3ebdSchin01-02-25  The 'g' format specifier is now handled by printf.  It had
1656da2e3ebdSchin	  inadvertently been omitted.
1657da2e3ebdSchin01-02-20  The + was not being displayed during an execution trace
1658da2e3ebdSchin	  with the += assignment operator.
1659da2e3ebdSchin01-02-19  The error message which occurs when the interpreter name
1660da2e3ebdSchin	  defined on the #! line does not exist is more informative.
1661da2e3ebdSchin01-02-19  A bug in which $0 would not be set correctly when a
1662da2e3ebdSchin	  script with #! was invoked by full pathname from the
1663da2e3ebdSchin	  directory of the script has been fixed.
1664da2e3ebdSchin01-02-19  A shell script did not always pick up tty mode changes
1665da2e3ebdSchin	  made by external commands such as stty which could
1666da2e3ebdSchin	  effect the behavior of read.
1667da2e3ebdSchin01-02-19  The -u, -g, and -k unary tests did not give the correct
1668da2e3ebdSchin	  results when used with negation and this has been fixed.
1669da2e3ebdSchin
1670da2e3ebdSchin01-02-05  --- Release ksh93k+  ---
1671da2e3ebdSchin01-02-05  The sequence \<newline> inside $'...' was not incrementing
1672da2e3ebdSchin	  the line count and this has been fixed.
1673da2e3ebdSchin01-02-05  Modified expansion of "${@-}" so that if no arguments are set
1674da2e3ebdSchin	  it results in null string rather than nothing.
1675da2e3ebdSchin01-02-02  memory leak problem with local variables in functions fixed.
1676da2e3ebdSchin01-01-25  allow arithmetic expressions with float%int and treat them
1677da2e3ebdSchin	  as ((int)float)%int rather than as an error.
1678da2e3ebdSchin01-01-19  read -n1 was not working and has been fixed.
1679da2e3ebdSchin01-01-17  ksh now handles the case in which a here document in command
1680da2e3ebdSchin	  substitution $() is terminated by the trailing ).  Previously,
1681da2e3ebdSchin	  a new-line was needed at the end of the delimiter word.
1682da2e3ebdSchin01-01-02  A bug in which a KEYBD trap would cause a multi-line token
1683da2e3ebdSchin	  to be processed incorrectly has been fixed.
1684da2e3ebdSchin00-12-10  Arithmetic integer constants can now have L and U suffices.
1685da2e3ebdSchin00-12-10  A bug in the processing of arithmetic expressions with compound
1686da2e3ebdSchin	  variables when the -n option is on has been fixed.
1687da2e3ebdSchin00-12-08  A bug in M-f and M-b from emacs mode has been fixed.  This
1688da2e3ebdSchin	  bug only occurs when ksh93 is compiled without MULTIBYTE enabled.
1689da2e3ebdSchin00-11-29  A bug in which jobs -p would yield 0 for background
1690da2e3ebdSchin	  jobs run in a script has been fixed.
1691da2e3ebdSchin00-11-21  A bug in integer arrays in which the number of elements is
1692da2e3ebdSchin	  incorrect when the ++ operator is applied to a non-existing
1693da2e3ebdSchin	  element has been fixed.  For example, integer x; ((x[3]++)).
1694da2e3ebdSchin00-11-20  A timing bug in which the shell could reset the terminal
1695da2e3ebdSchin	  group to the wrong value in the case that the a new process
1696da2e3ebdSchin	  changes the terminal group during startup has been fixed.
1697da2e3ebdSchin
1698da2e3ebdSchin00-10-27  --- Release ksh93k  ---
1699da2e3ebdSchin00-10-27  Using tab for completion now works only when applied
1700da2e3ebdSchin	  after a non-blank character at the end of the current line.
1701da2e3ebdSchin	  In other case a tab is inserted.
1702da2e3ebdSchin00-10-27  A bug in the emacs edit mode for ^X^E has been fixed.
1703da2e3ebdSchin	  The ^X^E sequence is supposed to invoke the full editor
1704da2e3ebdSchin	  on the current command.
1705da2e3ebdSchin00-10-18  A bug in which expansions of the form ${var//pattern/string}
1706da2e3ebdSchin	  did not work correctly when pattern was '/' or "/" has
1707da2e3ebdSchin	  been fixed.
1708da2e3ebdSchin00-10-18  The output format for indexed arrays in compound variables
1709da2e3ebdSchin	  has been modified so that it can be used as input.
1710da2e3ebdSchin00-10-18  Assignments with name references (typeset -n) will now
1711da2e3ebdSchin	  implicitly unreference an existing name reference.
1712da2e3ebdSchin00-10-17  A bug the += append operator when a single array element
1713da2e3ebdSchin	  is appended to a variable that is not an array has been fixed.
1714da2e3ebdSchin00-10-16  A bug in which the SIGCONT signal was being sent to
1715da2e3ebdSchin	  each process will kill -0 or kill -n 0 has been fixed.
1716da2e3ebdSchin00-10-12  The arithmetic evaluation portion has been rewritten to
1717da2e3ebdSchin	  perform a number of optimizations.
1718da2e3ebdSchin00-10-10  A bug in which name prefix matching ${!name.*} was not
1719da2e3ebdSchin	  checking name to see if it was a name reference has been fixed.
1720da2e3ebdSchin00-09-26  A bug in the multibyte version in which the width of for
1721da2e3ebdSchin	  non-printing characters was not correct has been fixed.
1722da2e3ebdSchin00-09-12  Made changes to get multibyte editing work on UWIN for windows
1723da2e3ebdSchin00-09-12  A bug in which multibyte characters would be displayed incorrectly
1724da2e3ebdSchin	  has been fixed.
1725da2e3ebdSchin00-08-08  Removed build dependency on iswprint() and iswalph().
1726da2e3ebdSchin00-07-20  In some cases the read builtin would read more than a single
1727da2e3ebdSchin	  line from a pipe on standard input and therefore leave the seek
1728da2e3ebdSchin	  position in the wrong location.
1729da2e3ebdSchin00-07-05  If the directory / is on the path, a / will not be inserted
1730da2e3ebdSchin	  between the directory and the file name during path searching
1731da2e3ebdSchin	  to avoid searching // for systems that treat this specially.
1732da2e3ebdSchin00-06-26  A bug in which on rare occasions wait could return before all
1733da2e3ebdSchin	  jobs have completed has been fixed.
1734da2e3ebdSchin00-06-21  A bug in which backspace did not work correctly during the
1735da2e3ebdSchin	  R replace directive in vi-mode has been fixed.
1736da2e3ebdSchin00-06-12  Added variable name completion/expansion/listing  to the set of
1737da2e3ebdSchin	  completions.  Variable name completions begin with $ or "$ followed
1738da2e3ebdSchin	  by a letter.
1739da2e3ebdSchin00-05-09  --- Release ksh93j  ---
1740da2e3ebdSchin00-05-09  Modified command substitution to avoid using /tmp files when
1741da2e3ebdSchin          run on read-only file systems.
1742da2e3ebdSchin00-04-17  Modified printf to handle '%..Xc' and '%..Xs' options where X
1743da2e3ebdSchin	  is not an alpha character.  Previous versions core dumped with this.
1744da2e3ebdSchin00-04-10  Changes to multibyte editing code were made to use standard
1745da2e3ebdSchin	  ISO C functions rather than methods devised before the standard.
1746da2e3ebdSchin00-04-09  Add %H options to printf to output strings with <"'&\t> properly
1747da2e3ebdSchin	  converted for use in HTML and XML documents.
1748da2e3ebdSchin00-04-07  Modified getopts builtin to handle \f...\f in usage string
1749da2e3ebdSchin	  by invoking specified function.
1750da2e3ebdSchin00-04-04  Added self generating man pages for bg, fc, fg, disown, jobs,
1751da2e3ebdSchin	  hist, let, ., and ulimit.
1752da2e3ebdSchin00-03-30  The append operator += has been added and can be used
1753da2e3ebdSchin	  for all assignments, strings, arrays, and compound variables.
1754da2e3ebdSchin00-03-30  Code was modified in several places to support automatic
1755da2e3ebdSchin	  generation of C locale dictionaries.
1756da2e3ebdSchin00-03-28  A bug in which the set and trap commands invoked with --name
1757da2e3ebdSchin	  type arguments would terminate the invoking script  has
1758da2e3ebdSchin	  been fixed.
1759da2e3ebdSchin00-03-27  A bug in which the library path variable was not updated
1760da2e3ebdSchin	  correctly on some systems as described in the 'g' point
1761da2e3ebdSchin	  release has been fixed.
1762da2e3ebdSchin00-03-07  printf now returns a non-zero exit status when one of
1763da2e3ebdSchin          its arguments cannot be converted to the given type.
1764da2e3ebdSchin00-03-05  The return value and error message for a command that
1765da2e3ebdSchin          was found on the path but was not executable was set
1766da2e3ebdSchin          incorrectly.
1767da2e3ebdSchin00-03-05  A prototype for ioctl() was removed from the vi edit mode.
1768da2e3ebdSchin
1769da2e3ebdSchin00-01-28  --- Release ksh93i  ---
1770da2e3ebdSchin00-01-28  Most of the built-in commands and ksh itself are now
1771da2e3ebdSchin          self documenting.  Running command --man will produce
1772da2e3ebdSchin          screen output.  Running command --html produces the
1773da2e3ebdSchin          man page in html format.
1774da2e3ebdSchin00-01-28  The getopts builtin can process command description
1775da2e3ebdSchin          strings to produce man pages.
1776da2e3ebdSchin00-01-28  A bug in which a script could terminate when getopts
1777da2e3ebdSchin          encountered an error when invoked inside a function
1778da2e3ebdSchin          has been fixed.
1779da2e3ebdSchin00-01-28  When a symbolic link was specified as the name of
1780da2e3ebdSchin          the script to invoke by name, the value of $0 was
1781da2e3ebdSchin          set to the real file name rather than the link name
1782da2e3ebdSchin          in some cases and this has been fixed.
1783da2e3ebdSchin00-01-28  A bug in which the precision given as an argument
1784da2e3ebdSchin	  to printf was not working has been fixed.
1785da2e3ebdSchin
1786da2e3ebdSchin99-03-31  --- Release ksh93h  ---
1787da2e3ebdSchin99-03-31  The PATH search algorithm has been modified to look
1788da2e3ebdSchin	  for a file named .fpath in each bin directory and if
1789da2e3ebdSchin	  found, to search for functions in this directory if
1790da2e3ebdSchin	  it cannot find the command in that directory.
1791da2e3ebdSchin99-03-31  When performing pathname expansion, the shell checks
1792da2e3ebdSchin	  to see whether each directory it reads is case sensitive
1793da2e3ebdSchin	  or not, and performs the matching accordingly.
1794da2e3ebdSchin99-03-31  The %T format for printing formatted date/time.
1795da2e3ebdSchin99-03-31  The emacs and vi modes now handle arrow keys when
1796da2e3ebdSchin          they use standard ANSI escape sequences.
1797da2e3ebdSchin99-03-31  The TAB key can be used for completion in emacs and viraw mode.
1798da2e3ebdSchin99-03-31  A bug in setting .sh.editchar during the KEYBD trap
1799da2e3ebdSchin	  for the MULTIBYTE option was fixed in release ksh93h.
1800da2e3ebdSchin99-03-31  A bug in shcomp for compilation of unary operators with [[...]]
1801da2e3ebdSchin	  has been fixed.
1802da2e3ebdSchin99-03-31  A bug in which the value of $? was changed when executing
1803da2e3ebdSchin	  a keyboard trap has been fixed.
1804da2e3ebdSchin99-03-31  The handling of SIGCHLD has been changed so that the
1805da2e3ebdSchin	  trap is not triggered while executing trap commands
1806da2e3ebdSchin	  to avoid recursive trap calls.
1807da2e3ebdSchin99-03-31  A bug in which a local variable in a function declared readonly
1808da2e3ebdSchin	  would generated an error when the function went out of
1809da2e3ebdSchin	  scope has been fixed.
1810da2e3ebdSchin99-03-31  A bug in which \<new_line> entered from the keyboard
1811da2e3ebdSchin	  with the KEYBD trap enabled has been fixed.
1812da2e3ebdSchin99-03-31  The error message for a misplaced ((, for example print ((3),
1813da2e3ebdSchin	  was often garbled and has been fixed.
1814da2e3ebdSchin99-03-31  A bug in the KEYBD trap in which escape sequences of the form
1815da2e3ebdSchin	  <ESC>[#~ were not being handled as a unit has been fixed.
1816da2e3ebdSchin99-03-31  A bug in which ksh would consider expressions like [[ (a) ]]
1817da2e3ebdSchin	  as syntax errors has been fixed.
1818da2e3ebdSchin99-03-31  A function defined as foo() without a function body
1819da2e3ebdSchin	  was not reported as a syntax error.
1820da2e3ebdSchin99-03-31  A bug in which ksh could run out of file descriptors when
1821da2e3ebdSchin	  a stream was repeatedly opened with exec and read from
1822da2e3ebdSchin	  has been fixed.
1823da2e3ebdSchin
1824da2e3ebdSchin98-04-30  --- Release ksh93g  ---
1825da2e3ebdSchin98-04-30  The pipefail option has been added.  With pipefail
1826da2e3ebdSchin	  enabled, a pipeline will not complete until all
1827da2e3ebdSchin	  commands are complete, and the return value will
1828da2e3ebdSchin	  be that of the last command to fail, or zero if
1829da2e3ebdSchin	  all complete successfully.
1830da2e3ebdSchin98-04-30  The name-value pair library uses the cdt library rather
1831da2e3ebdSchin	  than the hash library.  This change should be transparent
1832da2e3ebdSchin	  to applications.
1833da2e3ebdSchin98-04-30  On the U/WIN version for Window 95 and Windows NT,
1834da2e3ebdSchin          when a directory beginning with a letter followed by
1835da2e3ebdSchin          a colon is given to cd, it is assumed to be an absolute
1836da2e3ebdSchin          directory
1837da2e3ebdSchin98-04-30  When an executable is found on a given path,
1838da2e3ebdSchin	  the appropriate library path variable is prepended
1839da2e3ebdSchin	  with a corresponding library directory.
1840da2e3ebdSchin98-04-30  A bug in which a name reference could be created to
1841da2e3ebdSchin	  itself and later cause the shell to get into an infinite
1842da2e3ebdSchin	  loop has been fixed.
1843da2e3ebdSchin98-04-30  A bug in shcomp relating to compound variables was fixed.
1844da2e3ebdSchin98-04-30  A bug introduced in ksh93e in which leading 0's in -Z
1845da2e3ebdSchin	  fields caused the value to be treated as octal for arithmetic
1846da2e3ebdSchin	  evaluation has been fixed.
1847da2e3ebdSchin98-04-30  A bug when a name reference with a shorter name than
1848da2e3ebdSchin          the variable it references was the subject of a compound
1849da2e3ebdSchin	  assignment has been fixed.
1850da2e3ebdSchin98-04-30  A bug which in which assignment to array variables in
1851da2e3ebdSchin	  a subshell could effect the parent shell has been
1852da2e3ebdSchin	  fixed.
1853da2e3ebdSchin98-04-30  read name?prompt was putting a 0 byte at the end of the
1854da2e3ebdSchin	  prompt on standard error.
1855da2e3ebdSchin98-04-30  A bug in [[ string1 > string2 ]] when ksh was run with -x
1856da2e3ebdSchin	  has been fixed.
1857da2e3ebdSchin98-04-30  A bug in which the escape character was not processed
1858da2e3ebdSchin	  correctly inside {...} when brace expansion is enabled
1859da2e3ebdSchin	  has been fixed, for example {\$foo}.
1860da2e3ebdSchin98-04-30  A bug in line continuation in here-documents has been
1861da2e3ebdSchin	  fixed.
1862da2e3ebdSchin98-04-30  The default base when not specified with typeset -i is
1863da2e3ebdSchin	  10 in accordance with the documentation.  Previously,
1864da2e3ebdSchin	  the value was determined by the first assignment.
1865da2e3ebdSchin98-04-30  A parsing bug in which a # preceded alphanumeric
1866da2e3ebdSchin	  characters inside a command substitution caused
1867da2e3ebdSchin	  a syntax error to be reported has been fixed.
1868da2e3ebdSchin98-04-30  A bug in which a decimal constant represented as 10#ddd
1869da2e3ebdSchin	  where ddd was more than five digits generated a syntax
1870da2e3ebdSchin	  error has been fixed.
1871da2e3ebdSchin98-04-30  A bug in here document expansion in which ${...} expansions
1872da2e3ebdSchin	  were split across buffer boundaries has been fixed.
1873da2e3ebdSchin98-04-30  The sh_fun() function now takes third argument which
1874da2e3ebdSchin	  is an argument list for the invoked discipline function
1875da2e3ebdSchin	  or built-in.
1876da2e3ebdSchin98-04-30  A callback function can be installed which will give
1877da2e3ebdSchin          notification of file duplications and file closes.
1878da2e3ebdSchin98-04-30  When ksh is compiled on systems that do not use fork()
1879da2e3ebdSchin	  current option settings where not propagated to sub-shells.
1880da2e3ebdSchin
1881da2e3ebdSchin97-06-30  --- Release ksh93f  ---
1882da2e3ebdSchin97-06-30  Hostnames in addition to host addresses can be given in
1883da2e3ebdSchin	  /dev/tcp/host/port virtual file names.
1884da2e3ebdSchin97-06-30  File name completion and expansion now quotes special
1885da2e3ebdSchin	  characters in file names from both emacs and vi edit modes.
1886da2e3ebdSchin97-06-30  An empty for list behave like a for list with null expansions.
1887da2e3ebdSchin	  It produces a warning message with sh -n.
1888da2e3ebdSchin97-06-30  The code has been modified to work with EBCDIC as well as ASCII.
1889da2e3ebdSchin97-06-30  A bug which would cause the secondary prompt to be
1890da2e3ebdSchin	  displayed when a user entered a literal carriage
1891da2e3ebdSchin	  return has been fixed.
1892da2e3ebdSchin97-06-30  A bug which caused ksh read -s name to core dump was
1893da2e3ebdSchin	  fixed.
1894da2e3ebdSchin97-06-30  A bug with the expansion of \} and \] inside double
1895da2e3ebdSchin	  quoted strings that also contained variable expansions
1896da2e3ebdSchin	  has been fixed
1897da2e3ebdSchin97-06-30  Changes in the ksh93e point release caused autoload
1898da2e3ebdSchin	  functions invoked from within command substitution
1899da2e3ebdSchin	  to fail.  This has been fixed.
1900da2e3ebdSchin97-06-30  A bug in the processing of here-documents that could
1901da2e3ebdSchin	  prevent variable substitution to occur after $(...) command
1902da2e3ebdSchin	  substitution for long here documents has been fixed.
1903da2e3ebdSchin97-06-30  A bug caused by a race condition that could cause SIGTERM
1904da2e3ebdSchin	  to be ignored by a child process has been fixed.
1905da2e3ebdSchin97-06-30  A bug which prevented the startup of a coprocess immediately
1906da2e3ebdSchin	  after killing a running coprocess has been fixed.
1907da2e3ebdSchin97-06-30  ulimit foobar, where foobar is not an arithmetic
1908da2e3ebdSchin	  expression, now gives an error message as it did with ksh88
1909da2e3ebdSchin	  instead of setting the file size limit to 0.
1910da2e3ebdSchin97-06-30  A bug which could cause an interactive shell to terminate when
1911da2e3ebdSchin	  the last process of a pipeline was a POSIX function was fixed.
1912da2e3ebdSchin97-06-30  A bug which could cause command substitution of a shell script
1913da2e3ebdSchin	  to core dump has been fixed.
1914da2e3ebdSchin97-06-30  A security hole was fixed in suid_exec.
1915da2e3ebdSchin97-06-30  Arithmetic functions such as pow() that take more than
1916da2e3ebdSchin	  one argument, did not work if arguments other than the
1917da2e3ebdSchin	  first contained parenthesized sub-expression.
1918da2e3ebdSchin97-06-30  The error message from a script containing an incomplete
1919da2e3ebdSchin	  arithmetic expression has been corrected.
1920da2e3ebdSchin97-06-30  A bug which caused a core dump on some machines when
1921da2e3ebdSchin	  the value of a name reference contained a positional
1922da2e3ebdSchin	  parameter and the name reference was not defined inside
1923da2e3ebdSchin	  a function has been fixed.
1924da2e3ebdSchin97-06-30  Arithmetic expressions now correctly handle hexadecimal
1925da2e3ebdSchin	  constants.
1926da2e3ebdSchin97-06-30  A bug in which integer variables could be expanded
1927da2e3ebdSchin	  with a leading 10# when declared with typeset -i
1928da2e3ebdSchin	  multiple times has been corrected.
1929da2e3ebdSchin97-06-30  A bug in which IFS wasn't correctly restored when
1930da2e3ebdSchin	  set within command substitution has been fixed.
1931da2e3ebdSchin97-06-30  The _ character is now considered as part of a word
1932da2e3ebdSchin	  with the M-f and M-b emacs directives as it was in ksh88.
1933da2e3ebdSchin97-06-30  A bug in brace pattern expansions that caused expressions
1934da2e3ebdSchin          such as {foo\,bar,bam} to expand incorrectly have been fixed.
1935da2e3ebdSchin
1936da2e3ebdSchin
1937da2e3ebdSchin96-07-31  --- Release ksh93e  ---
1938da2e3ebdSchin96-07-31  The math functions, atan2, hypot, fmod, and pow were added.
1939da2e3ebdSchin96-07-31  When a shared library is loaded, if the function lib_init()
1940da2e3ebdSchin	  is defined in the library, it is invoked the first time that
1941da2e3ebdSchin	  the library is loaded with builtin -f library.
1942da2e3ebdSchin96-07-31  The k-shell information abstraction database option, KIA,
1943da2e3ebdSchin          has been revamped.
1944da2e3ebdSchin96-07-31  Empty command substitutions of the form $() now work.
1945da2e3ebdSchin	  whence -v foo now gives the correct result after calling
1946da2e3ebdSchin	  builtin -d foo.
1947da2e3ebdSchin96-07-31  A bug in right to left arithmetic assignment for which
1948da2e3ebdSchin	  the arithmetic expression (( y = x = 1.5 )) did not
1949da2e3ebdSchin	  yield 1 for y when x was declared typeset -i was fixed.
1950da2e3ebdSchin96-07-31  printf has been fixed to handle format  containing \0
1951da2e3ebdSchin	  and/or \0145 correctly.  In addition, characters following
1952da2e3ebdSchin	  %b in the format string are no longer displayed when
1953da2e3ebdSchin	  the operand contains \c.
1954da2e3ebdSchin96-07-31  A bug in printf that could cause the %E format to
1955da2e3ebdSchin	  produce unnormalized results has been fixed.
1956da2e3ebdSchin96-07-31  A bug which causes some arithmetic expressions to be
1957da2e3ebdSchin	  incorrectly evaluated as integer expressions rather
1958da2e3ebdSchin	  that floating point has been fixed.
1959da2e3ebdSchin96-07-31  Functions defined inside a subshell no longer remain
1960da2e3ebdSchin	  defined when the subshell completes.
1961da2e3ebdSchin96-07-31  The error message from sh -c ';echo foo' has been
1962da2e3ebdSchin	  corrected.
1963da2e3ebdSchin96-07-31  The format for umask -S has been changed to agree
1964da2e3ebdSchin	  with the specification in the POSIX standard.
1965da2e3ebdSchin96-07-31  A bug that caused side effects in subscript evaluation
1966da2e3ebdSchin	  when tracing was enabled for subscripts using ++ or --
1967da2e3ebdSchin	  has been fixed.
1968da2e3ebdSchin96-07-31  To conform to the Posix standard getopts has been changed
1969da2e3ebdSchin	  so that the option char is set to ? when it returns with
1970da2e3ebdSchin	  a non-zero exit status.
1971da2e3ebdSchin96-07-31  The handling of \} inside ${name...} has been fixed so
1972da2e3ebdSchin	  that the \ quotes the }.
1973da2e3ebdSchin96-07-31  A bug that caused the read builtin to resume execution
1974da2e3ebdSchin	  after processing a trap has been fixed.
1975da2e3ebdSchin96-07-31  [[ -s file ]] has been fixed so that if file is open
1976da2e3ebdSchin	  by ksh, it is flushed first.
1977da2e3ebdSchin96-07-31  In some cases attributes and sizes for non exported
1978da2e3ebdSchin	  variables weren't being reset before running a script.
1979da2e3ebdSchin96-07-31  The value of TMOUT was affected by changes make to
1980da2e3ebdSchin	  it in a subshell.
1981da2e3ebdSchin96-07-31  The jobs command did not reflect changes make by
1982da2e3ebdSchin	  sending the CONT signal to a command.
1983da2e3ebdSchin96-07-31  The error message for ksh -o unknown was incorrect.
1984da2e3ebdSchin96-07-31  Functions invoked as name=value name, did not use
1985da2e3ebdSchin	  values from the calling scope when evaluating value.
1986da2e3ebdSchin96-07-31  A bug in which the shell would reexecute previously
1987da2e3ebdSchin	  executed code when a shell script or coprocess was
1988da2e3ebdSchin	  run in the background has been fixed.
1989da2e3ebdSchin96-07-31  A bug in which an empty here-document would leave
1990da2e3ebdSchin	  a file descriptor open has been fixed.
1991da2e3ebdSchin96-07-31  A bug in which $(set -A array ...) would leave a
1992da2e3ebdSchin	  side effect has been fixed.
1993da2e3ebdSchin96-07-31  A discipline function for a global variable defined
1994da2e3ebdSchin	  within a function defined with the function keyword,
1995da2e3ebdSchin	  incorrectly created a local variable of the same name
1996da2e3ebdSchin	  and applied the discipline to it.
1997da2e3ebdSchin
1998da2e3ebdSchin95-08-28  --- Release ksh93d  ---
1999da2e3ebdSchin95-08-28  The \ character was not handled correctly in replacement
2000da2e3ebdSchin	  patterns with ${x/pattern/replace}.
2001da2e3ebdSchin95-08-28  A bug with read in which the line did not end with
2002da2e3ebdSchin	  a new-line has been fixed.
2003da2e3ebdSchin95-08-28  A bug in file name generation which sometimes
2004da2e3ebdSchin	  appended a . for filenames that ended in / has
2005da2e3ebdSchin	  been fixed.
2006da2e3ebdSchin95-08-28  If a process is waited for after a status has
2007da2e3ebdSchin	  been returned by a previous wait, wait now
2008da2e3ebdSchin	  returns 127.
2009da2e3ebdSchin95-08-28  A bug with hist (fc) -e which prevented a command
2010da2e3ebdSchin	  to re-executed after it had been edited has been fixed.
2011da2e3ebdSchin95-08-28  A bug which prevented quoting from removing the meaning
2012da2e3ebdSchin	  of unary test operators has been fixed.
2013da2e3ebdSchin95-08-28  A bug with typeahead and KEYBOARD traps with the
2014da2e3ebdSchin          MULTIBYTE option set has been fixed.
2015da2e3ebdSchin95-08-28  Builtin functions can take a third argument which is
2016da2e3ebdSchin          a void*.
2017da2e3ebdSchin95-08-28  The nv_scan() function can restrict the scope of a walk
2018da2e3ebdSchin          to the top scope.
2019da2e3ebdSchin
2020da2e3ebdSchin95-04-31  --- Release ksh93c  ---
2021da2e3ebdSchin95-04-31  The expansion of "$@" was incorrect when $1 was the null
2022da2e3ebdSchin	  string.
2023da2e3ebdSchin95-04-31  A bug which could incorrectly report a syntax error in
2024da2e3ebdSchin	  a backquoted expression when a $ was preceded by \\
2025da2e3ebdSchin	  has been fixed.
2026da2e3ebdSchin95-04-31  A bug which prevented the shell from exiting after
2027da2e3ebdSchin	  reporting an error when failing to open a script
2028da2e3ebdSchin	  has been fixed.
2029da2e3ebdSchin95-04-31  A bug that could lead to memory corruption when a
2030da2e3ebdSchin	  large here document that required parameter or command
2031da2e3ebdSchin	  substitution was expanded has been fixed.
2032da2e3ebdSchin95-04-31  A bug that could cause a core dump on some systems
2033da2e3ebdSchin	  after ksh detected an error when reading a function
2034da2e3ebdSchin	  has been fixed.
2035da2e3ebdSchin95-04-31  A bug which could cause a coprocess to hang when
2036da2e3ebdSchin	  reading from a process that has terminated has been fixed.
2037da2e3ebdSchin95-04-31  A bug which caused a script to terminate when set -e
2038da2e3ebdSchin	  was on and the first command of and && or || list
2039da2e3ebdSchin	  failed has been fixed.
2040da2e3ebdSchin95-04-31  A bug with here documents inside $(...) when the delimiter
2041da2e3ebdSchin	  word is an identifier has been fixed.
2042da2e3ebdSchin95-04-31  A bug which caused $0 to display the wrong value when
2043da2e3ebdSchin	  a script was invoked as an argument to the . command
2044da2e3ebdSchin	  and the eval command has been fixed.
2045da2e3ebdSchin95-04-31  A bug that could cause the built-in sleep to hang
2046da2e3ebdSchin	  has been fixed.
2047da2e3ebdSchin95-04-31  A bug introduces in 12/28/93b which caused the backslash
2048da2e3ebdSchin	  to be removed when it was followed by digit inside double
2049da2e3ebdSchin	  quotes in some instances has been fixed.
2050da2e3ebdSchin95-04-31  A bug which could cause a core dump if ksh was invoked with
2051da2e3ebdSchin	  standard input closed has been fixed.
2052da2e3ebdSchin95-04-31  A bug which could cause a core dump if typeset -A was
2053da2e3ebdSchin	  specified for an existing variable has been fixed.
2054da2e3ebdSchin95-04-31  Variables that were unset but had attributes such as readonly
2055da2e3ebdSchin	  and export were not listed with readonly, export and typeset.
2056da2e3ebdSchin95-04-31  Several problems with signals have been fixed.
2057da2e3ebdSchin95-04-31  A bug which prevented ulimit -t from working has been fixed.
2058da2e3ebdSchin	  Also, a bug in which failed ulimits could cause a core dump
2059da2e3ebdSchin	  has also been fixed.
2060da2e3ebdSchin95-04-31  A bug in expansion of the form ${name/#pattern/string} and
2061da2e3ebdSchin	  ${name/%pattern/string} has been fixed.
2062da2e3ebdSchin95-04-31  A bug which caused read -r on a line that contained only
2063da2e3ebdSchin	  blanks to get a non-null value has been fixed.
2064da2e3ebdSchin95-04-31  A bug introduced in the 'a' point release in which
2065da2e3ebdSchin	  ${x='\\'} expanded to \ when x was unset has been fixed.
2066da2e3ebdSchin95-04-31  A bug which prevented a trap on EXIT from being executed
2067da2e3ebdSchin	  when the last command in a script was a function invocation
2068da2e3ebdSchin	  has been fixed.
2069da2e3ebdSchin95-04-31  A bug which caused an interactive shell ignore input when
2070da2e3ebdSchin	  standard error was redirected to a file with exec,
2071da2e3ebdSchin	  and then restored with exec 2>&1 has been fixed.
2072da2e3ebdSchin95-04-31  An interactive shell turns on monitor mode even when
2073da2e3ebdSchin	  standard error has been redirected to a file.
2074da2e3ebdSchin95-04-31  A bug which could cause standard input to be incorrectly
2075da2e3ebdSchin	  positioned for the last command of a script has been fixed.
2076da2e3ebdSchin95-04-31  A bug in the edit modes which allowed walking back in
2077da2e3ebdSchin	  the history file for more than HISTSIZE commands has
20787c2fbfb3SApril Chin	  been fixed.
2079da2e3ebdSchin95-04-31  A bug which could cause a core dump if variable TMPDIR was
2080da2e3ebdSchin	  changed between two command substitutions has been fixed.
2081da2e3ebdSchin95-04-31. A bug which prevented a trap on EXIT from being cleared
2082da2e3ebdSchin	  has been fixed.
2083da2e3ebdSchin95-04-31  A bug fixed for the v directive in vi MULTIBYTE has been
2084da2e3ebdSchin          fixed.
2085da2e3ebdSchin95-04-31  Code to for IFS handling of multibyte characters has
2086da2e3ebdSchin          been added.
2087da2e3ebdSchin95-04-31  The displaying of multibyte strings in export, readonly,
2088da2e3ebdSchin          typeset, and execution traces has been fixed.
2089da2e3ebdSchin95-04-31  Variables inside functions are now statically scoped.
2090da2e3ebdSchin	  The previous behavior was never documented.
2091da2e3ebdSchin95-04-31  Variables inside functions are now statically scoped.
2092da2e3ebdSchin          The previous behavior was never documented.
2093da2e3ebdSchin95-04-31  A few changes have been made to the name-value library
2094da2e3ebdSchin          that affect built-ins that use disciplines.  The
2095da2e3ebdSchin          changes allow disciplines to be shared by variables
2096da2e3ebdSchin          and should make it possible to add new disciplines
2097da2e3ebdSchin          without recompilation.
2098da2e3ebdSchin95-04-31  The name-value library interface has undergone significant
2099da2e3ebdSchin          change for this revision.  See the new nval.3 man page.
2100da2e3ebdSchin
2101da2e3ebdSchin94-12-31  --- Release ksh93b  ---
2102da2e3ebdSchin94-12-31  Variables inside functions are now statically scoped.
2103da2e3ebdSchin          The previous behavior was never documented.
2104da2e3ebdSchin94-12-31  If IFS contains two consecutive identical characters belonging
2105da2e3ebdSchin	  to the [:space:] class, then this character is treated as
2106da2e3ebdSchin	  a non-space delimiter so that each instance will delimit
2107da2e3ebdSchin	  a field.  For example, IFS=$'\t\t' will cause two consecutive
2108da2e3ebdSchin	  tabs to delimit a null field.
2109da2e3ebdSchin94-12-31  The getopts command has a -a name option that specifies a
2110da2e3ebdSchin	  name that will be used for usage messages.
2111da2e3ebdSchin94-12-31  A bug which caused unset RANDOM to dump core has been
2112da2e3ebdSchin	  fixed.
2113da2e3ebdSchin94-12-31  A bug which prevented return for terminating a profile
2114da2e3ebdSchin	  or ENV file has been fixed.
2115da2e3ebdSchin94-12-31  A bug which prevented standard input from being
2116da2e3ebdSchin	  directed to /dev/null for background jobs when
2117da2e3ebdSchin	  monitor mode was turned off has been fixed.
2118da2e3ebdSchin94-12-31  Statements of the form typeset -options var[expr]=value
2119da2e3ebdSchin	  did not perform substitutions on expr as expected.
2120da2e3ebdSchin94-12-31  A bug which prevented the shell from sending a HUP
2121da2e3ebdSchin	  signal to some background jobs that were not disowned
2122da2e3ebdSchin	  has been fixed.
2123da2e3ebdSchin94-12-31  A bug which allowed a script to trap signals that are
2124da2e3ebdSchin	  ignored at the time that the shell was invoked by exec
2125da2e3ebdSchin	  has been fixed.
2126da2e3ebdSchin94-12-31  A bug which could cause a core dump when a discipline
2127da2e3ebdSchin	  function was unset within a discipline was fixed.
2128da2e3ebdSchin94-12-31  The typeset builtin now accepts a first argument of
2129da2e3ebdSchin	  + or - for compatibility with ksh88.
2130da2e3ebdSchin94-12-31  For compatibility with ksh88, the results of expansions
2131da2e3ebdSchin	  of command arguments will treat the extended character
2132da2e3ebdSchin	  match characters ()|& as ordinary characters.
2133da2e3ebdSchin94-12-31  A bug which caused read to fail on a file that was
2134da2e3ebdSchin	  open for read/write with <> when the first operation
2135da2e3ebdSchin	  was print or printf has been fixed.
2136da2e3ebdSchin94-12-31  When a job is suspended, it is put on the top of
2137da2e3ebdSchin	  the job list as required by the POSIX standard.
2138da2e3ebdSchin94-12-31  The value of OPTARG when an option that required
2139da2e3ebdSchin	  an argument but didn't have one was incorrect in the
2140da2e3ebdSchin	  case the the option string began with a :.
2141da2e3ebdSchin94-12-31  A bug which caused the terminal to get into a bad
2142da2e3ebdSchin	  state with some KEYBD traps in vi-mode has been fixed.
2143da2e3ebdSchin94-12-31  A bug which caused an invalid trap to cause a script
2144da2e3ebdSchin	  to terminate, rather than just return an error, has
2145da2e3ebdSchin	  been fixed.
2146da2e3ebdSchin94-12-31  Backreferencing sub-expressions in patterns and replacement
2147da2e3ebdSchin	  strings now works.
2148da2e3ebdSchin94-12-31  A bug in chmod which caused the -R option to fail has
2149da2e3ebdSchin	  been fixed.
2150da2e3ebdSchin94-12-31  More signal names have been added for Solaris
2151da2e3ebdSchin
2152da2e3ebdSchin94-06-30  --- Release ksh93a  ---
2153da2e3ebdSchin94-06-30  An expansion bug which causes portions of a word after
2154da2e3ebdSchin	  a $((...)) expansion that contains a nested $var expansion
2155da2e3ebdSchin	  to be lost has been fixed.
2156da2e3ebdSchin94-06-30  A bug that caused a core dump when a script that did not
2157da2e3ebdSchin	  have PWD set and did a cd inside command substitution
2158da2e3ebdSchin	  has been fixed.
2159da2e3ebdSchin94-06-30  A bug which caused a core dump on some machines when
2160da2e3ebdSchin	  the LANG variable was assigned to has been fixed.
2161da2e3ebdSchin94-06-30  A bug which incorrectly handled set disciplines that
2162da2e3ebdSchin	  performed arithmetic evaluation when the discipline
2163da2e3ebdSchin	  was called from the arithmetic evaluator has been fixed.
2164da2e3ebdSchin94-06-30  A bug caused by an EXIT trap inside a function that
2165da2e3ebdSchin	  was executed in a subshell was fixed.
2166da2e3ebdSchin94-06-30  If foo is a function, and not a program, then command foo
2167da2e3ebdSchin	  now reports that foo isn't found rather than invoking foo.
2168da2e3ebdSchin94-06-30  The previous version incorrectly listed -A as an
2169da2e3ebdSchin	  invocation option.  The -A option is only for set.
2170da2e3ebdSchin94-06-30  A bug was fixed which caused ksh to loop when execution trace
2171da2e3ebdSchin	  was enabled and the PS4 prompt required command substitution.
2172da2e3ebdSchin94-06-30  A bug which could cause the job control switch character
2173da2e3ebdSchin	  to be disabled when a script that enabled monitor mode
2174da2e3ebdSchin	  terminated was fixed.
2175da2e3ebdSchin94-06-30  A bug in the macro expansion global replacement operator //,
2176da2e3ebdSchin	  when the pattern began with a [ or +( has been fixed.
2177da2e3ebdSchin94-06-30  A bug which prevented ~ expansion from occurring when
2178da2e3ebdSchin	  it was terminated with a colon inside an assignment
2179da2e3ebdSchin	  has been fixed.
2180da2e3ebdSchin94-06-30  A bug in the dot command which prevented autoload functions
2181da2e3ebdSchin	  from working has been fixed.
2182da2e3ebdSchin94-06-30  A bug which caused a variable to be unset if the
2183da2e3ebdSchin	  its value were expanded inside a set discipline has
2184da2e3ebdSchin	  been fixed.
2185da2e3ebdSchin94-06-30  Whence -a now longer reports that a defined function
2186da2e3ebdSchin	  is undefined.
2187da2e3ebdSchin94-06-30  A bug on some systems in which $0 would be incorrect
2188da2e3ebdSchin	  in scripts invoked by name has been fixed.
2189da2e3ebdSchin94-06-30  Here documents with an empty body now work.
2190da2e3ebdSchin94-06-30  A bug which disabled argument passing and resetting
2191da2e3ebdSchin	  of options for a script invoked by name inside a
2192da2e3ebdSchin	  function has been fixed.
2193da2e3ebdSchin94-06-30  A bug in which an EXIT trap set the caller of a function
2194da2e3ebdSchin	  would be executed if a command called inside a function
2195da2e3ebdSchin	  was not found has been fixed.
2196da2e3ebdSchin94-06-30  A bug which allowed a script to trap signals that are
2197da2e3ebdSchin	  ignored at the time that the shell was invoked has
2198da2e3ebdSchin	  been fixed.
2199da2e3ebdSchin94-06-30  A bug which caused 2<&1- when applied to a shell built-in
2200da2e3ebdSchin	  to leave standard input closed has been fixed.
2201da2e3ebdSchin94-06-30  A bug which caused the shell to incorrectly parse
2202da2e3ebdSchin	  $() command substitutions with nested case statements
2203da2e3ebdSchin	  has been fixed.
2204da2e3ebdSchin
2205