xref: /titanic_51/usr/src/lib/libshell/common/RELEASE (revision 3e14f97f673e8a630f076077de35afdd43dc1587)
110-03-05  --- Release ksh93t+  ---
210-03-05  A varibale unset memory leak has been fixed and tests/leaks.sh
3	  has been added to verify the fix.
410-03-04  Documentation, comment, and disgnostic spelling typos corrected.
510-02-14  Fix sh_getenv() initialization to cooperate with the 3d fs.
610-02-12  A bug in which the get discipline function was not invoked for
7	  associative array subscripts for unset array elements has been fixed.
810-02-12  A bug which could occur if the last line of a script was an eval
9	  that executed multiple commands has been fixed.
1010-02-02  A buffer overflow in read and another in binary type base64
11	  encoding were fixed.
1210-01-20  A bug in the evaluation of arithmetic expression in which the
13	  subscript was evaluated twice for $((foo[x++]++)) has been fixed.
1410-01-19  A workaround for a double-free of a trap in both a subshell and its
15	  parent has been added.
1610-01-18  A bug in type handling of typeset -H has been fixed.
1710-01-15  The "adding empty subscript" warning now only emitted with -x set.
1810-01-01  A bug in the parser in which '$((case i in i):;esac);:))' was not
19	  parsed correctly was fixed.
2010-01-01  A bug in the parser in which '$(( 2 , 3.6 ))' dumped core for locales
21	  with radix char , and thousands separator . has been fixed.
2209-12-28  A bug in the handling of SIGCLD on systems that generated SIGCLD
23	  while blocked waiting for process to complete has been fixed.
2409-12-24  ast setlocale() reworked to differentiate env var changes from user
25	  override.
2609-12-18  A bug with the SHOPT_BGX option set which disabled traps for signals
27	  < SIGCHLD when a trap for a signal > SIGCHLD was set has been fixed.
2809-12-18  A bug where [[ -v var ]] was incorrect for some variables (including
29	  LC_* vars) has been fixed.
3009-12-15  A bug that produced a syntax error when a multibyte character
31	  straddled a buffer boundary has been fixed.
3209-12-11  A bug where the subscript of an unset variable was not evaluated has
33	  been fixed.
3409-12-09  A bug where shcomp dumped core on certain syntax errors has been fixed.
3509-12-07  A bug where a parent shell environment var reset in a subshell removed
36	  the value in subsequent children of the parent shell has been fixed.
3709-12-04  A bug in which in some cases a trap in a function executed in
38	  a subshell could trigger twice has been fixed.
3909-12-03  A bug in which SHLVL exported with some attributes could cause
40	  the shell to abort at startup has been fixed.
4109-12-02  A bug with pipefail in which the shell could hang waiting for the
42	  writer to complete before the last reader command has been fixed.
4309-11-30  A bug in which a trap could be inherited by the first element of
44	  a pipeline when the command had more than 63 arguments that did
45	  not contain any macro expansions has been fixed.
4609-11-19  When read from a terminal was called from with a while or foo loop,
47	  and an edit mode was on, a backspace or erase no longer will
48	  overwrite the prompt.
4909-11-17  Change .paths parse to handle BUILTIN_LIB=foo BUILTIN_LIB=foo-1.2.
5009-11-17  Inside a function, typeset foo.bar will bind foo to global variable
51	  foo if local variable foo does not exist, instead of creating a
52	  local variable.
5309-11-17  "read -n1" from the terminal has been fixed to read exactly one character.
5409-11-11  Job control now works for subshell commands, (...).
5509-11-11  If set -e is on for an interactive shell errors in special builtins
56	  now cause the shell to exit.
5709-11-11  A bug in which an interrupt handler processed during the read builtin
58	  when IFS did not contain a new line has been fixed.
5909-11-09  A bug in which a variable that has been unset in a subshell and then
60	  exported from that subshell does not show up in the environment
61	  has been fixed.
6209-11-02  ``,2'' is now a valid numeric constant for locales with
63	  decimal_point=','.
6409-11-02  A bug where "return" in .profile did not restore the shell state
65	  has been fixed.
6609-10-31  A bug that corrupted saved exit status when pids wrapped around has
67	  been fixed.
6809-10-26  A bug in { LANG LC_ALL LC_category } ordering has been fixed in -last.
6909-10-16  A bug where notification to libast that the environment has changed
70          has been fixed.
7109-10-12  A bug in which a function loaded in a subshell could leave side
72	  effects in the parent shell has been fixed.
7309-10-12  A bug in converting a printf %d operand to a number when the operand
74	  contains multiple subscripts for the same variable has been fixed.
7509-10-09  A bug in the handling of the escape character \ in directory prefixes
76	  in command completion has been fixed.
7709-10-09  $PATH processing has been changed to delay dir stat() and .paths
78	  lookup until the directory is needed in the path search.
7909-09-28  Call the ast setlocale() intercept on unset too.
8009-09-24  A bug in which LANG=foo; LC_ALL=foo; unset LC_ALL; did not revert
81	  LC_CTYPE etc. to the LANG value has been fixed.
8209-09-17  A bug in which unsetting SVLVL could cause a script invoked by
83	  name without #! to core dump has been fixed.
8409-09-16  A bug in which a pipeline in a here-document could hang when the
85	  pipefail option was on has been fixed.
8609-09-09  A bug in the processing of line joining in here documents which
87	  occurred when a buffer began with <escape><new-line> has been fixed.
8809-09-09  A leading ; with commands in a brace group or parenthesis group
89	  no longer causes an error.  It now is used for the "showme" option.
9009-09-09  A bug in which a subshell containing a background process could
91	  block until the background process completed has been fixed.
9209-09-04  A bug in handing ${var[sub]}, where var is a nameref has been fixed.
9309-09-03  A bug which caused an index array to have the wrong number of elements
94	  when it was converted from a compound variable by adding an another
95	  element has been fixed.
9609-09-03  Specifying export for a compound variable now generates an error.
9709-09-02  $"..." localizations strings are no longer recognized inside `...`.
9809-09-01  A bug in the for loop optimizer in the handling of type static
99	  variables has been fixed.
10009-09-01  An error message is not displayed when * and @ are used as subscripts.
10109-09-01  Several bugs in the processing for types that included an associative
102	  array of another type has been fixed.
10309-09-01  A bug in the tracing of [[ a < b ]] and [[ a > b ]] has been fixed.
10409-08-26  The .sh.file variable was not being set for a script that was run
105	  by name and didn't start with #! and this has been fixed.
10609-08-25  A bug in which a function called to deeply from command substitution
107	  did not display an error message has been fixed.
10809-08-24  When processing profiles, ksh93 now violates the POSIX standard and
109	  treats &> as a redirection operator similar to bash.
11009-08-23  A bug in the handling of the trap on SIGPIPE that could lead to a
111	  memory fault has been fixed.
11209-08-21  A bug in the handling of the comma operator in arithmetic expressions
113	  that could cause a core dump on some systems has been fixed.
11409-08-20  A bug in which a compound variable containing an array of a type
115	  that doesn't have any elements now expands correctly.
11609-08-19  A bug which disabled function tracing inside a function after
117	  a call to another function has been fixed.
11809-08-19  A bug in which initializing a compound variable instance to another
119	  compound variable by name has been fixed.
12009-08-18  A bug in which compound variable instances could be lost after
121	  an instance that invoked a type method discipline has been fixed.
12209-08-18  A bug in which a discipline function for a type applied to an
123	  array instance when invoked in a function ignored the subscript
124	  has been fixed.
12509-08-18  A scoping error with variables in arithmetic expression with
126	  type variables when reference with a name reference has been fixed.
12709-08-10  Several memory leaks were fixed primarily related to subshells.
12809-08-06  A bug in which setting the trap on CHLD to ignore could cause
129	  a script to hang has been fixed.
13009-07-08  A bug in the processing of name reference assignments when it
131	  contained pattern expansions with quoting has been fixed.
13209-06-22  The default width for typeset -X has been changed so that there
133	  should be no loss of precision when converting to a string.
13409-06-19  A bug in the printing of array elements for binary variables with
135	  printf %B has been fixed.
13609-06-19  A bug which caused a core dump with trap DEBUG set with an array
137	  assignment with no elements has been fixed.
13809-06-19  A bug with read with typeset -b -Z<num> has been fixed.
13909-06-19  Two bugs related to read -b for array variables has been fixed.
14009-06-19  A bug with typeset for compound variables containing arrays of
141	  compound variables has been fixed.
14209-06-18  A bug in appending a compound variable to a an indexed array of
143	  compound variables has been fixed.
14409-06-18  A bug which occurs when appending a compound variable to an indexed
145	  array element has been fixed.
14609-06-18  Setting VISUAL to a value other than one ending in vi or emacs will
147	  no longer unset the edit mode.
14809-06-17  A bug in typeset -m when moving a local compound variable to a
149	  global compound variable via a name reference has been fixed.
15009-06-17  A bug in appending to nodes of an array of compound variables when
151	  addressing them via nameref has been fixed.
15209-06-17  A bug in typeset -p var, when var is an array of compound variables
153	  in which the output only contained on array element has been fixed.
15409-06-17  The prefix expansion ${!y.@} now works when y is a name
155	  reference to an element of an array.
15609-06-16  Traps on signals that are ignored when the shell is invoked
157	  no longer display.  Previously they were ignored as required but
158	  would be listed with trap -p.
15909-06-12  A bug in vi edit mode in which hitting the up arrow key at the
160	  end of a line longer than 40 characters which caused a core dump
161	  has been fixed.
16209-06-11  A bug in which "eval non-builtin &" would create two processes,
163	  one for the & and another for non-builtin has been fixed.
16409-06-08  When var is an identifier and is unset, ${var} no longer tries to
165	  run command substitution on the command var.
16609-06-08  Process substitution arguments of the form <(command) can now be
167	  used following the < redirection operator to redirect from command.
16809-05-13  A bug in which redirections of the form 2>&1 1>&5 inside command
169	  substitution could cause the command substitution to hang has been
170	  fixed.
17109-05-12  To conform with POSIX, the -u option only checks for unset variables
172	  and subscript elements rather than checking for all parameters.
17309-05-12  A bug which could cause a core dump when a variable whose name
174	  begins with a . was referenced as part of a name reference inside
175	  a function has been fixed.
17609-05-01  A bug that caused a core dump when SIGWINCH was received and
177	  both vi and emacs mode were off has been fixed.
17809-04-22  Default alias compound='typeset -C' added.
17909-04-15  A bug that caused ${...;} to hang for large files has been fixed.
18009-04-08  A change was made in the -n option which printed out an incorrect
181	  warning with <>.
18209-04-07  The emacs edit command M-_ and M_. and the vi command _ was fixed
183	  to handle the case there there is no history file.
18409-04-05  A bug in handling new-lines with read -n has been fixed.
18509-04-05  The ENV variable defaults the the file named by $HOME/.kshrc rather
186	  then to the string $HOME/.kshrc.
18709-03-31  A bug in which a nested command substitution with redirections could
188	  leave a file descriptor open has been fixed.
18909-03-24  ksh now only uses the value of the _ variable on startup if it can
190	  verify that it was set by the invoking process rather than being
191	  inherited by some other ancestor.
19209-03-24  When ksh is invoked without -p and ruid!=euid, and the shell is
193	  compiled without SHOPT_P_UID or ruid<SHOPT_P_UID, the shell now
194	  enables the -p option.  The previous version instead set the
195	  euid to the ruid as it does for set +p.
19609-03-24  When SHOPT_P_UID is defined at compile time and the shell is started
197	  without -p and ruid!=euid and ruid>=SHOPT_P_UID then euid is set
198	  to ruid. A bug that did the wrong test (ruid<SHOPT_P_UID) was fixed.
19909-03-17  The sleep(1) builtin now accept and ISO 8601 PnYnMnDTnHnMnS
200	  duration or date(1) compatible date/time operand.
20109-03-10  If a variable that was left or right justified or zero-filled was
202	  changed with a typeset statement that was left or right justified
203	  or zero-filled, then the original justification no longer affects
204	  the result.
20509-03-10  A bug in the handling of traps when the last command in a script
206	  is a subshell grouping command has been fixed.
20709-03-03  A bug in which an expansion of the form ${!prefix@} could generate
208	  an exception after the return from a function has been fixed.
20909-02-02  A bug in restricted mode in which the value of ENV could be
210	  changed from within a function has been fixed.
21109-02-02  A bug in which an erroneous message indicating that a process
212	  terminated with a coredump has been fixed.
21309-02-02  The exit status when exit was called without an argument from
214	  a signal handler was incorrect and has been fixed.
21509-02-02  A bug in which a function autoloaded in a subshell could cause
216	  a core dump when the subshell completed has been fixed.
21709-02-02  A bug in which 2>&1 inside a command substitution wasn't working
218	  correctly has been fixed.
21909-02-02  A bug in the call stack of arithmetic function with 2 args
220	  returning int has been fixed.
22109-01-30  A bug in which 'eval print \$0' inside a function was giving the
222	  wrong value for $0 has been fixed.
22309-01-28  A bug in which a command substitution could return an exit status
224	  of 127 when the pipefail option is enabled has been fixed.
22509-01-26  ksh93 now generates an error message if you attempt to create
226	  a global name reference to a local variable.
22709-01-26  The [[ -v var ]] operator was modified to test for array elements.
22809-01-23  The redirection operator <>; was added.  It is similar to <>
229	  except that if the command it is applied to succeeds, the file
230	  is truncated to the offset at the command completion.
23109-01-23  The default file descriptor for <> was changed to 1.
23209-01-20  A bug in which the exit status specified in an exit trap was
233	  not used when a process terminated with a signal has been fixed.
23409-01-19  A bug in which a signal whose default action is to terminate
235	  a process could be ignored when the process is running a sub-shell
236	  has been fixed.
23709-01-19  A bug in which sending SIGWINCH to a process that reads from a pipe
238	  could cause a memory fault has been fixed.
23909-01-16  The -R unary operator was added to [[...]] and test to check whether
240	  a variable is a  name reference.
24109-01-16  The -v unary operator was added to [[...]] and test to check whether
242	  a variable is set.
24309-01-14  The unset built-in was modified to return 0 exit status when
244	  unsetting a variable that was unset to conform with the POSIX
245	  standard.
24609-01-14  The unset built-in was modified to continue to unset variables
247	  after encountering a variable that it could not unset to
248	  conform to the POSIX standard.
24909-01-14  The parameter expansion ${x+value} no longer expands the value of
250	  the variable x when determining whether x is set or not.
25109-01-13  A bug in which background jobs and pipelines that were not waited
252	  for could, in rare instances, cause the shell to go into an infinite
253	  loop or fail has been fixed.
25409-01-06  A bug in indexed arrays of compound variables in which referencing
255	  non-existent sub-variable in an arithmetic expression could cause
256	  the sub-variable to be created has been fixed.
25709-01-05  A bug in which the \ character did not escape extended regular
258	  expression pattern characters has been fixed.
25908-12-24  A bug in which killing the last element of a pipe did not cause
260	  a write to the pipe to generate a SIGPIPE has been fixed.
26108-12-19  A bug which could cause command substitution to hang when the
262	  last element of a pipeline in a command substitution was a built-in
263	  and the output was more that PIPE_BUFF.
26408-12-18  A bug which occurs when a here documented marker embedded in a
265	  command substitution occurs on a buffer boundary has been fixed.
26608-12-17  A bug in the output of typeset -p for variables that had attributes
267	  but did not have a value has been fixed.
26808-12-16  A bug in which a name reference to a name reference variable that
269	  references an array element has been fixed.
27008-12-16  A bug in which a variable given both the -A and -C attribute along
271	  with an initial assignment didn't work correctly has been fixed.
27208-12-10  The [[ -t fd ]] test was fixed to handle fd>9.
27308-12-10  A bug where function stack misalignment could cause a bus error
274	  has been fixed.
27508-12-09  Command completion was changed to use \ to quote special characters
276	  instead of quoting the argument in single quotes.
27708-12-07  A bug in typeset -m which occurred when the target node was an
278	  associative array element has been fixed.
27908-12-07  A timing bug on some systems (for example darwin), that could
280	  cause the last process of a pipeline entered interactively to fail
281	  with an "Exec format error" has been fixed.
28208-12-04  SHOPT_BGX enables background job extensions. Noted by "J" in
283	  the version string when enabled. (1) JOBMAX=n limits the number
284	  of concurrent & jobs to n; the n+1 & job will block until a
285	  running background job completes. (2) SIGCHLD traps are queued
286	  so that each completing background job gets its own trap; $! is
287	  set to the job pid and $? is set to the job exit status at the
288	  beginning of the trap. (3) sleep -s added to sleep until the time
289	  expires or until a signal is delivered.
29008-12-04  The sign of floating point zero is preserved across arithmetic
291	  function calls.
29208-12-04  A bug that caused print(1) to produce garbled stdout/stderr
293	  output has been fixed.
29408-12-04  A bug in which printf "%d\n" "'<euro>'" did not output the
295          numerical value of the EURO symbol, 8354, has been fixed.
29608-11-24  /dev/fd* and /dev/std* redirections are first attempted with
297	  open() to preserve seek semantics; failing that the corresponding
298	  file descriptors are dup()'d.
29908-11-20  A bug which could cause a core dump if a function compiled with
300	  shcomp was found has been fixed.
30108-11-20  A bug in which jobs were not cleared from the jobs table for
302	  interactive shells when the pipefail option is on has been fixed.
30308-11-11  A bug in which a field that was unset in a type definition and later
304	  set for an instance could appear twice when displaying the variable
305	  has been fixed.
30608-11-11  A bug in which running a simple command & inside a function would
307	  not return the correct process id has been fixed.
30808=11-10  A bug in which the exit status of a command could be lost if the pid
309	  was that of the most recent command substitution that had completed
310	  has been fixed.
31108-11-10  The maximum depth for subshells has been increased from 256 to 65536.
31208-11-06  A bug which could cause a core dump when the _ reference variable was
313          used as an embedded type with a compound assignment has been fixed.
314
31508-10-31  --- Release ksh93t  ---
31608-10-31  Variable scoping/initialization bugs that could dump core were fixed.
31708-10-24  The lexer now accepts all RE characters for patterns prefixed
318	  with a ksh ~(...) option expression.
31908-10-24  For ${var/pat/sub} \0 in sub expands to the text matched by pat.
32008-10-18  A bug in array scoping that could dump core has been fixed.
32108-10-10  read -n and -N fixed to count characters in multibyte locales.
32208-10-10  A bug that mishandled _.array[] type references has been fixed.
32308-10-09  ${.sh.version} now contains a concatenation of the following (after
324	  'Version') denoting compile time features:
325		A	SHOPT_AUDIT
326		B	SHOPT_BASH
327		L	SHOPT_ACCT
328		M	SHOPT_MULTIBYTE
32908-10-09  A bug that caused subshell command substitution with redirection
330	  to hang has been fixed.
33108-10-08  Output errors, other than to stderr, now result in a diagnostic.
33208-10-08  ksh93 now supports types that contain arrays of other types as
333	  members.  Earlier versions core dumped in this case.
33408-10-05  A bug which caused the shell to emit a syntax error for an arithmetic
335	  statement of the form (( var.name[sub] = value)) has been fixed.
33608-10-01  A bug that caused subshell command substitution to hang has
337	  been fixed.
33808-09-29  When the -p export option of typeset is used with other options,
339	  only those variables matching the specified options are displayed.
34008-09-29  When the shell reads the environment and finds variables that are
341	  not valid shell assignments, it now passes these on to subsequent
342	  commands rather than deleting them.
34308-09-29  A bug in the display of compound variables containing an indexed
344	  array of compound variables has been fixed.
34508-09-29  A bug in the display of compound variables containing an associative
346	  array with a subscript containing a . in the name has been fixed.
34708-09-26  A core dump in the subshell environment restore has been fixed.
34808-09-24  $(...) has been fixed to properly set the exit status in $?.
34908-09-23  $(<...) with IFS=$'\n\n' has been fixed to retain all but the last
350	  of multiple trailing newlines.
35108-09-23  The -p option to typeset when used with other attributes, restricts
352	  the output to variables with the specified attributes.
35308-09-22  A bug that sometimes lost the exit status of a job has been fixed.
35408-09-21  A bug that retained trailing command substitution newlines in
355	  cases where the command caused the shell to fork has been fixed.
35608-09-19  type, whence -v, and command -v were fixed to comply with POSIX
357	  by writing 'not found' diagnostics to the standard error.
35808-09-18  test and [...] were fixed to comply with POSIX in the case
359	  of test '(' binop ')' where binop is a valid binary test operator.
36008-09-16  If a method discipline named create is specified when defining a
361	  type, this function will be called when an instance is created.
36208-09-15  The variable _ is now set as a reference to the compound variable
363	  when defining a compound variable or a type.
36408-09-10  The shell now prints an error message when the type name specified
365	  for an indexed array subscript is not an enumeration type.
36608-09-10  A bug in which a subshell that spawned a background process could
367	  loose output that was produced after the foreground completed
368	  has been fixed.
36908-09-10  A timing bug on some systems that could cause coprocesses started by a
370	  subshell to not clean up and prevent other coprocesses has been fixed.
37108-09-09  The typeset -m option is now able to rename array elements from
372	  the same array.
37308-09-09  The exit status of 2 from the DEBUG trap causes the next command
374	  to be skipped.  An exit value of 255 from a DEBUG trap called from
375	  a function causes the function to return.
37608-09-08  A bug in which a coprocess created in a subshell that did not
377	  complete when the subshell terminated could prevent a coprocess
378	  from being created in the parent shell has been fixed.
37908-09-05  An assignment of the form name1=name2 where name1 and name2
380	  are both compound variables causes name1 to get a copy of name2.
381	  name1+=name2 causes name2 sub-variables to be appended to name1.
38208-09-05  A bug in which unsetting a compound variable did not unset all
383	  the sub-variables has been fixed.
38408-09-01  A bug in the subshell cleanup code that could cause SIGSEGV has
385	  been fixed.
38606-08-26  The SHLVL variable which is an environment variable used by bash
387          and zsh that gets incremented when the shell starts.
38808-08-25  For an indexed array, a negative subscript now refers to offsets
389	  from the end so that -1 refers to the last element.
39008-08-24  An alignment error for shorts on 64 bit architectures has been fixed.
39108-08-22  If oldvar is a compound variable, typeset -C newvar=oldvar creates
392	  newvar as a copy of oldvar.
39308-08-19  The ALRM signal no longer cause the sleep builtin to terminate.
39408-08-13  When used in an arithmetic expression, the .sh.version variable
395	  now produces a number that will be increasing for each release.
39608-08-11  A bug in which type instantiation with a compound assignment in
397	  a dot script in which the type is defined has been fixed.
39808-08-07  The -m option has been added to typeset to move or rename a
399	  variable.  Not documented yet.
40008-08-06  A bug in read when used in a loop when a prompt was specified
401	  when reading from a terminal has been fixed.
40208-08-01  A bug with the pipefail option in which a nested pipeline could
403	  cause an asynchronous command to block has been fixed.
40408-08-01  A for loop optimizer bug that treats .sh.lineno as an invariant
405	  has been fixed.
40608-07-30  A bug in which expanding compound variable that had a get discipline
407	  from with a here document could cause a syntax error has been fixed.
40808-07-18  A bug in which a nameref caused a local variable to be created
409	  rather than binding to an existing variable in the global scope
410	  has been fixed.
41108-07-17  A bug which occurred when a nameref was created from within a
412	  function that was  part of a pipeline has been fixed.
41308-07-14  The compile option SHOPT_STATS was added. With this option the
414	  compound variable .sh.stats keeps usage statistics that could help
415	  with performance tuning.
41608-07-10  The output of set now always uses a single line for each variable.
417	  For array variables, the complete set of values is now displayed.
41808-07-09  The typeset -C option can be used with arrays to indicate that
419	  each element should default to a compound variable.
42008-07-08  The %B format now outputs compound variables and arrays.  The
421	  alternate flag # can be used to cause output into a single line.
42208-07-03  When the window change signal, WINCH, is received, the current
423	  edit line is redrawn in place.
42408-07-01  A bug in the handling of shared variables when inside an embedded
425	  type has been fixed.
42608-06-29  A bug in multiline edit mode which occurred when the prompt length
427	  was three characters or less has been fixed.
42808-06-23  A bug in which the SIGCLD was not be triggered when background
429	  jobs completed has been fixed.
43008-06-23  KSH_VERSION added as a name reference to .sh.version.
43108-06-20  type now outputs 'special builtin' for special builtins.
43208-06-19  A couple of bugs in multi-dimensional arrays have been fixed.
43308-06-19  A bug in which a syntax error in a dot script could generated
434	  a syntax error in the next subsequent command has been fixed.
43508-06-17  Reduced the maximum function call depth to 2048 to avoid exceptions
436	  on some architectures.
43708-06-16  A bug in which printf "%B" could generate an exception when the
438	  specified variable was not set has been fixed.
43908-06-16  When typeset -p is followed by variable names, it now displays
440	  the attributes names and values for the specific names.
44108-06-14  A bug that could effect the drawing of the screen from multiline
442	  emacs or gmacs mode when walking up the history file has been fixed.
44308-06-13  A bug in which a compound variable defined in a subshell could
444	  have side effects into the parent shell has been fixed.
44508-06-13  A number of bugs related to using .sh.level to set the stack from
446	  for DEBUG traps have been fixed.
44708-06-13  The .sh.lineno variable has been added.  When .sh.level is changed
448	  inside a DEBUG trap, the .sh.lineno contains the calling line number
449	  for the specified stack frame.
45008-06-13  The .sh.level variable has been documented and now works.
45108-06-11  The -C option has been added to read for reading compound command
452	  definitions from a file.
45308-06-11  The . command is now permitted inside a compound command definition.
454	  The dot script can contain declaration commands and dot commands.
45508-06-09  Add -C option to typeset so that typeset -C foo, is equivalent
456	  to foo=().
45708-06-09  Added -n warning message for typeset option orderings that are valid
458	  with ksh88 but not valid with ksh93, for example Lx5.
45908-06-09  A bug in which the return value for an assignment command containing
460	  a command substitution with that failed was zero when the assignment
461	  contained redirections has been fixed.
46208-06-09  A bug in the quoting of $ inside a ERE pattern ~(E)(pattern)
463	  has been fixed.
46408-06-06  A bug when processing `` command substitution with the character
465	  sequence \$' has been fixed.
46608-06-02  When defining a type, the typeset -r attribute causes this field
467	  to be required to be specified for each instance of the type and
468	  does not allow a default value.
46908-06-02  Several bugs in which compound variables were modified by
470	  subshells have been fixed.
47108-05-22  The ceil function has been added to the math functions.
47208-05-21  A bug in which a name reference defined in a function and passed
473	  as an argument to another function could cause an incorrect binding.
47408-05-21  A bug in freeing compound variables that are local to functions
475	  has been fixed.
47608-05-19  The array expansions ${array[sub1..sub2]} and ${!array[sub1..sub2]}
477	  to expand to the value (or subscripts) for array between sub1 and
478	  sub2 inclusive.  For associative arrays, the range is based on
479	  location in the POSIX locale.  The .. must be explicit and cannot
480	  result from an expansion.
48108-05-15  The trap on SIGCLD is no longer triggered by the completion of
482	  the foreground job as with ksh88.
48308-05-14  A bug in the implementation of the editing feature added on
484	  07-09-19 in emacs mode has been fixed.
48508-05-12  A bug in processing the test built-in with parenthesis has been
486	  fixed.
48708-05-12  The unset built-in now returns non-zero when deleting an array
488	  subscript that is not set.
48908-05-08  Changing the value of HISTFILE or HISTSIZE will cause the old
490	  history file to be close and reopened with the new name or size.
49108-05-08  When FPATH is changed functions that were found via a path search
492	  will be searched for again.
49308-05-08  A parser bug in which reserved words and labels were recognized
494	  inside compound indexed array assignment after a new-line has
495	  been fixed.
49608-05-07  A bug in getopts when handling numerical option arguments has
497	  been fixed.
49808-05-07  The typeset -S option was added for variables outside type
499	  definitions to provide a storage class similar to C static
500	  inside a function defined with function name.  When outside
501	  type definitions and outside a function, the -S option cause
502	  the specified variable so be unset before the assignment and
503	  before the remaining attributes are supplied.
50408-05-07  A bug that affected the cursor movement in multiline mode when
505	  a character was deleted from near the beginning of the any
506	  line other than the first.
50708-05-01  In multiline edit mode, the refresh operation will now clear
508	  the remaining portion of the last line.
50908-05-01  A bug in computing prompt widths for the edit modes for prompts
510	  with multibyte characters has been fixed.
51108-05-01  A bug in the multiline edit mode which could cause the current
512	  line to be displayed incorrectly when moving backwards from third
513	  or higher line to the previous line has been fixed.
51408-05-01  A bug in which options set in functions declared with the function
515	  name syntax were carried across into functions invoked by these
516	  functions has been fixed.
51708-04-30  A bug which could cause a coprocess to hang when the read end
518	  is a builtin command has been fixed.
51908-04-30  The emacs and vi editors have been modified to handle window
520	  change commands as soon as they happen rather than waiting for
521	  the next command.
52208-04-28  A bug in which ${!x} did not expand to x when x was unset has been
523	  fixed.
52408-04-27  A bug in which the assignment x=(typeset -a foo=([0]=abc)) created
525	  x.foo as an associative array has been fixed.
52608-04-25  A bug in which $# did not report correctly when there were more
527	  than 32K positional parameters has been fixed.
52808-04-04  Choose the name _ as the sub-variable that holds type or instance
529	  specific data used by discipline functions.
53008-03-27  A bug in which the terminal group was not given back to the parent
531	  shell when the last part of a pipeline was handled by the parent shell
532	  and the other parts of the pipeline complete has been fixed.
533	  The symptom was that the pipeline became uninterruptable.
53408-03-25  A bug in restricted mode introduced in ksh93s that caused scripts
535	  that did not use #! to executed in restricted mode has been fixed.
53608-03-25  A bug in which the pipefail option did not work for a pipeline
537	  within a pipeline has been fixed.
53808-03-24  A bug in which OPTIND was not set correctly in subshells has
539	  been fixed.
54008-03-24  A bug which could cause a memory exception when a compound variable
541	  containing an indexed array with only element 0 defined was expanded.
54208-03-20  A bug in which ${!var[sub].*} was treated as an error has been fixed.
54308-03-20  Associative array assignments of the form ([name]=value ...)
544	  now allow ; as well as space tab and new line to separate elements.
54508-03-18  A buffering problem in which standard error was sometimes
546	  not flushed before sleep has been fixed.
54708-03-17  A bug in which a signal sent to $$ while in a subshell would be
548	  sent to the subshell rather than the parent has been fixed.
54908-03-17  --default option added to set(1) to handle set +o POSIX semantics.
550	  set --state added as a long name alias for set +o.
55108-03-14  A bug in which using monitor mode from within a script could
552	  cause the terminal group to change has been fixed.
55308-03-10  The new ${...} command substitution will treat the trailing }
554	  as a reserved word even if it is not at the beginning of a command,
555	  for example, ${ date }.
55608-03-10  If the name of the ENV begins with /./ or ././ then the
557	  /etc/ksh.kshrc file will not be executed on systems that support
558	  this interactive initialization file.
55908-03-07  A bug in which ksh -i did not run the ENV file has been fixed.
56008-03-07  A bug in which ulimit did not always produce the same output as
561	  ulimit -fS has been fixed.
56208-03-04  A bug in multiline mode in emacs and vi mode which could cause the
563	  cursor to be on the wrong line when interrupt was hit has been fixed.
56408-03-03  The change made in ksh93s+ on 07-06-18 in which braces became
565	  optional for ${a[i]} inside  [[...]] was restored in the case
566	  where the argument can be a pattern.
56708-03-03  A bug in which creating a name reference to an associative array
568	  instance would fail when the subscript contained characters [ or
569	  ] has been fixed.
57008-02-29  The redirection operator >; has been added which for non-special
571	  files, generates the output in a temporary file and writes the
572	  specified file only of the command has completed successfully.
57308-02-15  A bug in ${var/pattern/string} for patterns of the form ?(*) and +(*)
574	  has bee fixed.
57508-02-07  A bug in which test \( ! -e \) produced an error has been fixed.
57608-02-14  The typeset -a option can now optionally be followed by the name
577	  of an enumeration type which allows subscripts to be enumerations.
57808-02-14  The enum builtin which creates enumeration types has been added.
57908-02-12  The backoff logic when there are no more processes has been fixed.
58008-02-07  The -X option has been added to typeset.  The -X option creates
581	  a double precision number that gets displayed using the C99 %a
582	  format.  It can be used along with -l for long double.
58308-01-31  The -T option to typeset has been added for creating typed
584	  variables.  Also the -h and -S options have been added to
585	  typeset that are only applicable when defining a type.
58608-01-31  The prefix expansion operator @ has been added.  ${@name}
587	  expands to the type of name or yields the attributes.
58807-11-15  A bug in the macro expander for multibyte characters in which
589	  part of the character contains a file pattern byte has been fixed.
59007-10-03  A bug in which : was not allowed as part of an alias name has been
591	  fixed.
59207-09-26  A bug in which appending a compound variable to a compound variable
593	  or to an index array didn't work has been fixed.
59407-09-19  In both emacs and vi edit mode, the escape sequence \E[A (usually
595	  cursor up, when the cursor is at the end of the line will fetch
596	  the most recent line starting with the current line.
59707-09-18  The value of ${!var} was correct when var was a reference to an
598	  array instance.
59907-09-18  The value of ${!var[sub]} was not expanding to var[sub] and this
600	  was fixed.  It also fixed ${name} where name is a name reference
601	  to var[sub].
60207-09-18  It is now legal to create a name reference without an initialization.
603	  It will be bound to a variable on the first assignment.
60407-08-30  A discipline function can be invoked as ${x.foo} and is equivalent
605	  to ${ x.foo;} and can be invoked as x.foo inside ((...)).
60607-07-09  A bug in which typeset -a did not list indexed arrays has been
607	  fixed.
60807-07-03  The command substitution ${ command;} has been added.  It behaves
609	  like $(command) except that command is executed in the current
610	  shell environment.  The ${ must be followed by a blank or an
611	  operator.
612
61308-04-17  --- Release ksh93s+  ---
61408-04-17  A bug in which umask was not being restored correctly after a
615          subshell has been fixed.
61608-04-15  A bug in which sending a STOP signal to a job control shell started
617	  from within a shell function caused cause the invoking shell to
618	  terminate has been fixed.
61908-04-11  A bug which caused $(exec > /dev/null) to go into an infinite loop
620	  has been fixed.
62108-03-27  A bug in which typeset -LZ was being treated as -RZ has been fixed.
62208-03-06  A bug with ksh -P on systems that support the the profile shell,
623          in which it would exit after running a non-builtin has been fixed.
62408-01-31  A bug in which command substitution inside ((...)) could cause
625	  syntax errors or lead to core dumps has been fixed.
62608-01-17  A bug in which discipline functions could be deleted when invoked
627	  from a subshell has been fixed.
62808-01-17  A bug in which a command substitution consisting only of
629	  assignments was treated as a noop has been fixed.
63008-01-17  A bug in which discipline functions invoked from withing a
631	  compound assignment could fail has been fixed.
63208-01-16  Incomplete arithmetic assignments, for example ((x += )), now
633	  generate an error message.
63408-01-16  A bug in which a set discipline defined for a variable before
635	  an array assignment could cause a core dump has been fixed.
63608-01-03  A bug in on some systems in which exit status 0 is incorrectly
637	  returned by a process that catches the SIGCONT signal is stopped
638	  and then continued.
63907-12-13  A race condition in which a program that has been stopped and then
640	  continued could loose the exit status has been fixed.
64107-12-12  Code to check for file system out of space write errors for all
642	  writes has been added.
64307-12-11  A bug in the macro expander for multibyte characters in which
644	  part of the character contains a file pattern byte has been fixed.
64507-12-06  A bug in the emacs edit mode when multiline was set that output
646	  a backspace before the newline to the screen has been fixed.
64707-12-04  A bug in which using <n>TAB after a variable name listing expansion
648	  in the edit modes would cause the $ to disappear has been fixed.
64907-11-28  A bug in which setting IFS to readonly could cause a subsequent
650	  command substitution to fail has been fixed.
65107-11-27  A work around for a gcc 4.* C99 "feature" that could cause a job
652	  control shell to go into an infinite loop by adding the volatile
653	  attribute to some auto vars in functions that call setjmp().
65407-11-27  A bug in which the shell could read ahead on a pipe causing the
655	  standard input to be incorrectly positioned has been fixed.
65607-11-27  A bug in which compound variable UTF-8 multibyte values were not
657	  expanded or traced properly has been fixed.
65807-11-21  A bug where an unbalanced '[' in a command argument was not treated
659	  properly has been fixed.
66007-11-15  A bug in which compatibility mode (no long option names) getopts(1)
661	  incorrectly set the value of OPTARG for flag options has been fixed.
66207-11-15  A bug in which "hash -- name" treated "--" as an invalid name operand
663	  has been fixed.
66407-11-15  typeset now handles "-t -- [-r] [--]" for s5r4 hash(1) compatibility.
66507-11-15  A bug in which the umask builtin mis-handled symbolic mode operands
666	  has been fixed.
66707-11-15  Bugs in which shell arithmetic and the printf builtin mis-handled the
668	  signs of { -NaN -Inf -0.0 } have been fixed.
66907-11-15  The full { SIGRTMIN SIGRTMIN+1 ... SIGRTMAX-1 SIGRTMAX } range
670	  of signals, determined at runtime, are now supported.
67107-11-15  A bug in which creating an index array with only subscript 0 created
672	  only a simple variable has been fixed.
67307-11-14  A bug in which appending to an indexed array using the form
674	  name+=([sub]=value) could cause the array to become an associative
675	  array has been fixed.
67607-11-14  A bug in which typeset without arguments could coredump if a
677	  variable is declared as in indexed array and  has no elements has
678	  been fixed.
67907-11-14  A bug in which creating a local SECONDS variable with typeset in
680	  a function could corrupt memory has been fixed.
68107-11-14  A bug which could cause a core dump when a script invoked by name
682	  from a function used compound variables has been fixed.
68307-11-05  A bug in which printf %d "'AB" did not diagnose unconverted characters
684	  has been fixed.
68507-11-05  printf %g "'A" support added for all floating point formats.
68607-11-01  A bug in which typeset -f fun did not display the function definition
687          when invoked in a subshell has been fixed.
68807-10-29  The sleep builtin was fixed so that all floating point constants
689	  are valid operands.
69007-10-10  A bug in which the locale was not being restored after
691          LANG=value command has been fixed.
69207-09-20  A bug in which a nameref to a compound variable that was local
693	  to the calling function would not expand correctly when displaying
694	  is value has been fixed.
69507-09-19  A bug which cause cause a core dump if .sh.edchar returned
696	  80 characters or more from a keyboard trap has been fixed.
69707-09-14  A bug in which could cause a core dump when more than 8 file
698	  descriptors were in use has been fixed.
69907-09-10  A bug in which creating a name reference to an instance of
700	  an array when the array name is itself a reference has been fixed.
70107-09-10  The file completion code has been modified so that after an = in
702	  any word, each : will be considered a path delimiter.
70307-09-06  A bug in which subprocess cleanup could corrupt the malloc() heap
704          has been fixed.
70507-08-26  A bug in which a name reference to an associative array instance
706	  could cause the subscript to be evaluated as an arithmetic expression
707	  has been fixed.
70807-08-22  A bug in which the value of an array instance was of a compound
709	  variable was not expanded correctly has been fixed.
71007-08-14  A bug which could cause a core dump when a compound assignment was
711	  made to a compound variable element with a typeset -a attribute
712	  has been fixed.
71307-08-08  A bug in which a trap ignored in a subshell caused it to be
714	  ignored by the parent has been fixed.
71507-08-07  A bug in which the set command would generated erroneous output
716	  for a variable with the -RZ attribute if the variable name had been
717	  passed to a function has been fixed.
71807-08-02  A bug in which read x[1] could core dump has been fixed.
71907-08-02  A second bug in which after read x[sub] into an associative array
720	  of an element that hasn't been assigned could lead to a core dump
721	  has been fixed.
72207-07-31  A bug in which a pipeline that completed correctly could have
723	  an exit status of 127 when pipefail was enabled has been fixed.
72407-07-09  The SHOPT_AUDIT compile option has been added for keyboard logging.
72507-06-25  In vi insert mode, ksh no longer emits a backspace character
726	  before the carriage return when the newline is entered.
72707-06-25  A bug in which pipefail would cause a command to return 0
728	  when the pipeline was the last command and the failure happened
729	  on a component other than the last has been fixed.
73007-06-25  A bug in the expansion of ${var/pattern/rep} when pattern or rep
731	  contained a left parenthesis in single quotes has been fixed.
73207-06-18  The braces for a subscripted variable with ${var[sub]} are now
733	  optional when inside [[...]], ((...)) or as a subscript.
73407-05-28  A bug in brace expansion in which single and double quotes did
735          not treat the comma as a literal character has been fixed.
73607-05-24  The -p option of whence now disables -v.
73707-05-23  Several bug fixes in compound variables and arrays of arrays
738	  have been made.
73907-05-15  A bug in which the %B format of printf was affected  by the
740	  locale has been fixed.
74107-05-14  A bug in which \ was not removed in the replacement pattern with
742	  ${var/pattern/rep} when it was not followed by \ or a digit has
743	  been fixed.
74407-05-10  A bug in which ksh -R file core dumped if no script was specified
745	  has been fixed.  it not displays an error message.
74607-05-07  Added additional Solaris signals to signal table.
74707-04-30  A bug in which a pipeline with command substitution inside a
748	  function could cause a pipeline that invokes this function to
749	  hang when the pipefail option is on has been fixed.
75007-04-30  Added -q to whence.
75107-04-18  A small memory leak with each redirection of a non-builtin has
752	  been fixed.
75307-03-08  A bug in which set +o output command line options has been fixed.
75407-03-08  A bug in which an error in read (for example, an invalid variable
755	  name), could leave the terminal in raw mode has been fixed.
75607-03-06  A bug in which read could core dump when specified with an array
757	  variable with a subscript that is an arithmetic expression has
758	  been fixed.
75907-03-06  Several serious bugs with the restricted shell were reported and
760	  fixed.
76107-03-02  If a job is stopped, and subsequently restarted with a CONT
762	  signal and exits normally, ksh93 was incorrectly exiting with
763	  the exit status of the stop signal number.
76407-02-26  M-^L added to emacs mode to clear the screen.
76507-02-26  A bug in which setting a variable readonly in a subshell would
766	  cause an unset error when the subshell completed has been fixed.
76707-02-19  The format with printf uses the new = flag to center the output.
76807-02-19  A bug in which ksh93 did not allow multibyte characters in
769	  identifier names has been fixed.
77007-02-19  A bug introduced in ksh93 that causes global compound variable
771	  definitions inside functions to exit with "no parent" has been fixed.
77207-02-19  A bug in which using compound commands in process redirection
773	  arguments would give syntax errors <(...) and >(...) has been fixed.
77407-01-29  A bug which caused the shell to core dump which can occur when a
775	  built-in exits without closing files that it opens has been fixed.
77607-01-26  A bug in which ~(E) in patterns containing \ that are not inside ()
777	  has been fixed.
778
77906-12-29  --- Release ksh93s  ---
78006-12-29  A bug in which the value of IFS could be changed after a command
781	  substitution has been fixed.
78206-12-22  /dev/(tcp|udp|sctp)/HOST/SEVRICE now handles IPv6 addresses on
783	  systems that provide getaddrinfo(3).
78406-12-19  A -v option was added to read.  With this option the value of
785	  the first variable name argument will become the default value
786	  when read from a terminal device.
78706-11-20  A bug in which "${foo[@]:1}}" expands a null argument (instead of
788	  no argument), when foo[0] is not empty has been fixed.
78906-11-16  The discipline functions have been modified to allow each subscript
790	  to act independently.  Currently the discipline function will not
791	  be called when called from a discipline function of the same variable.
79206-11-14  A bug which could cause a core dump if a file descriptor for
793	  an internal file was closed from with a subshell has been fixed.
79406-10-30  The redirections <# pattern, and <## pattern have been added.
795	  Both seek forward to the beginning of the next line that contains
796	  the pattern.  The <## form copies the skipped portion to standard
797	  output.
79806-10-26  On systems that support stream control transport, the virtual file
799	  name /dev/sctp/host/port can now be used to establish connections.
80006-10-26  The printf modifier # when used with d produces units in thousands
801	  with a single letter suffix added.  The modifier # when used with
802	  the i specification provides units of 1024 with a two letter suffix.
80306-10-24  The value of $! is now set to the process id of a job put
804	  into the background with the bg command as required by POSIX.
80506-10-23  A bug in which the value of $! was affected by a background
806	  job started from a subshell has been fixed.
80706-10-23  A bug in ${var:offset:len} in multibyte locales has been fixed.
80806-10-15  The remaining math functions from C99 were added for any system
809	  that supports them.
81006-10-13  The klockwork.com software detected a few coding errors that
811	  have been fixed.
81206-10-12  A bug when skipping over `...` with ${x:=`...`} when x is set
813	  has been fixed.
81406-10-11  A bug in process floating constants produced by the %a format
815	  of printf has been fixed.
81606-10-06  A bug in which IFS was not being restored correctly in some
817	  cases after a subshell has been fixed.
81806-10-06  A bug in which pipefail was not detecting some failures in
819	  pipelines with 3 or more states has been fixed.
82006-10-03  A bug in the processing of >(...) with builtins which could
821	  cause the builtin to hang has been fixed.
82206-10-03  A bug in the for loop optimizer which causes >(...) process
823	  substitution to be ignored has been fixed.
82406-09-17  The -a option was added to typeset for indexed arrays.  This
825	  is only needed when using the ([subscript]=value ...) form.
82606-09-06  The showme option was added.  Each simple command not beginning
827	  with a redirection and not occurring with in the while, until, if,
828	  select condition can be preceded by a semi-colon which will
829	  be ignored when showme is off.  When showme is on, any command
830	  preceded by a colon will be traced but not executed.
83106-08-16  As a new feature, a leading ~(N) on a pattern has no effect
832	  except when used for file expansion.  In this case if not
833	  matches are found, the pattern is replaced by nothing rather
834	  than itself.
83506-08-11  A bug in the expansion of ${.sh.match[i]:${#.shmatch[i]}} has
836	  been fixed.
83706-08-10  The read builtin options -n and -N have been modified to treat
838          the size as characters rather than bytes unless storing into a
839	  binary (typeset -B) variable.
84006-07-27  When the here document operator << is followed directly by a #
841	  rather than a -, the first line of the here-document determines
842	  how much whitespace is removed for each line.
84306-07-26  A bug in the C-shell history (enabled with set -H) in which the
844	  history event !$ was not processed has been fixed.
84506-07-21  A bug on some systems in which assigning PATH on a command line
846	  would not take effect has been fixed.
84706-07-20  Add ksh93 and rksh93 as allowable names for ksh binaries.
84806-07-20  Removed the SHOPT_OO compilation option which was only partially
849	  implemented.
85006-07-20  The ability to use egrep, grep, and fgrep expressions within
851	  shell patterns has been documented.
85206-07-17  A bug with arithmetic command expressions for locales in which
853	  the comma is a thousands separator has been fixed.
85406-07-13  The default HISTSIZE was increased from 128 to 512.
85506-07-13  A multibyte problem with locales that use shift codes has been fixed.
85606-06-23  A number of bug fixes for command, file, and variable completion
857	  have been mode.
85806-06-20  Floating point division by zero now yields the constant Inf or -Inf
859	  and floating functions with invalid arguments yield NaN.
86006-06-20  The floating point constants Inf and NaN can be used in arithmetic
861	  expressions.
86206-06-20  The functions isinf(), isnan(), tanhl() have been added for
863	  arithmetic expressions.
86406-06-13  Internal change to use ordering for variables instead of hashing
865	  to speed up prefix matching.
86606-06-13  A window between fork/exec in which a signal could get lost
867	  and cause a program to hang has been eliminated
86806-06-13  A bug in edit completion with quoted strings has been fixed.
86906-06-07  The restricted options can now be enabled by set as well as on
870	  the command line.  Once set, it can not be disabled.
87106-06-04  Modified built-in binding so that for systems for which /bin
872          and /usr/bin are the same, a builtin bound to /bin will get
873	  selected when either /bin or /usr/bin is scanned.
87406-06-04  Added literal-next character processing for emacs/gmacs mode.
875	  This change is not compatible with earlier versions of ksh93
876          and ksh88 when the stty lnext is control-v.  The sequence
877	  escape-control-v will display the shell version.
87806-05-31  Modified emacs and vi mode so that entering a TAB after a partial
879	  TAB completion, generates a listing of possible completions.
880	  After the second TAB, a number followed by a TAB will perform
881	  the completion with the corresponding item.
88206-05-19  Modified arithmetic so that conversions to strings default to
883	  the maximum number of precision digits.
88406-05-16  Bug fixes for multibyte locales.
88506-05-10  The =~ operator was added to [[...]] and  [[ string ~= ERE ]]
886	  is equivalent to [[ string == ~(E)ERE ]].
88706-04-25  A bug in the vi edit mode which could cause the shell to core dump
888	  when switching from emacs mode.
88906-04-17  A bug in which using LANG or LC_ in assignment lists with builtins
890	  did not restore the localed correctly has been fixed.
89106-04-04  A bug in which discipline functions could not be added to variables
892	  whose names started with .sh has been fixed.
89306-03-28  The -s option to typeset was added to modify -i to indicate short
894	  integers.
89506-03-28  A bug in which variables assignment lists before functions
896	  defined with function name were not passed on the functions
897	  invoked by this function has been fixed.
89806-03-28  A bug in which name references defined within a function defined
899	  with function  name could not be used with compound variables has
900	  been fixed.
90106-03-27  A bug in which read <&p (print >&p) would cause the coprocess input
902	  (output) pipe to close before reading from (after writing to)
903          it has been fixed.
90406-02-28  A bug in which stopping a job created with the hist builtin command
905	  would create a job that could not be restarted has been fixed.
906
90706-01-24  --- Release ksh93r  ---
90806-01-24  A bug in which running commands with standard output closed would
909	  not work as expected has been fixed.
91006-01-23  A bug in which print -u<n> could fail when file descriptor <n> was
911	  open for writing has been fixed.
91206-01-19  The ?: arithmetic operator fixed to work when the operation after
913	  the colon was an assignment.
91405-12-24  A bug which could lead to a core dump when elements of a compound
915	  variable were array elements, i.e. foo=(bar=(1 2)), has been fixed.
91605-12-13  An arithmetic bug in which x+=y+=z was not working has been fixed.
91705-12-13  An arithmetic bug in which x||y was returning x when x was non-zero
918	  rather than 1 has been fixed.
91905-12-07  The aliases for integer and float have been changed to use attributes
920	  -li and -lE to handle long long and long double types.
92105-12-07  The histexpand (-H) option has been added which allows C-shell
922	  style history expansions using the history character !.
92305-12-07  The multiline option was added which changes that way the edit
924	  modes handle lines longer than the window width.  Instead of
925	  horizontal scrolling, multiple lines on the screen are used.
92605-12-05  The whence builtin now returns an absolute pathname when the
927          command is found in the current directory.
92805-11-29  A bug which caused ksh -c '[[ ! ((' to core dump rather than
929	  report a syntax error has been fixed.
93005-11-29  A bug when reading fixed length records into typeset -b variables
931	  which caused a zero byte to terminate the value has been fixed.
93205-11-22  The ability to seek to an offset within a file has been added
933	  with the new I/O redirection operators, <#  and >#.  Currently,
934	  these redirection operators must be followed by ((expr))
935	  but in a future release, it should be able to used to seek forward
936	  to the specified shell pattern.  In addition $(n<#) expands to the
937	  current byte offset for file descriptor n.
93805-11-22  The .sh.match array variable is now set after each [[ ... ]]
939	  pattern match.  Previously it was only set for substring matches.
94005-10-17  A bug in which the library path variable could be prefixed
941          with a directory when a .path file was not encountered in
942	  the directory of the executable has been fixed.
94305-09-15  A for/while loop optimizer bug in which $OPTIND was not
944	  correctly expanded has been fixed.
94505-09-05  A bug in which a history command that invoked a history
946	  command could go into an infinite loop has been fixed.
94705-08-31  In the case that IFS contains to adjacent new-lines so that
948	  new-line is not treated as a space delimiter, only a single
949	  new-line is deleted at the end of a command substitution.
95005-08-19  When a tilde substitution expands to the / directory and is
951	  followed by a /, it is replaced by the empty string.
95205-08-16  A bug in which n<&m did not synchronize m has been fixed.
95305-08-16  A bug in which process substitution  ( <() and >() ) was not
954	  working within for and while loops has been fixed.
95505-07-24  A bug in which the pattern ~(E)(foo|bar) was treated as a syntax
956	  error has been fixed.
95705-07-24  A bug in completion with <n>=, where n was the one of the
958	  previous selection choices has been fixed.
95905-07-21  A bug with multibyte input when no edit mode was specified which
960	  caused the input line to shift left/right has been fixed.
96105-06-24  A race condition which could cause the exit status to get lost
962	  on some fast systems has been fixed.
96305-06-21  A bug in which nested patterns of the form {m,n}(pat) would cause
964	  syntax errors has been fixed.
96505-06-21  A bug in the macro expander has been fixed which could cause a
966          syntax error for an expansion of the form ${x-$(...)} when
967	  x is set and the command substitution contained certain strings.
96805-06-08  On systems for which echo does not do System V style \ expansions,
969	  the -e option was added to enable these expansion.
97005-06-08  A bug in which ${var op pattern} to not work when inside an
971	  arithmetic expression has been fixed.
97205-05-23  An extension to shell patterns that allows matching of nested
973	  groups while skipping over quoted strings has been added.
97405-05-18  A bug in which the line number for errors was not correct for
975          functions loaded from FPATH has been fixed.
97605-04-18  A bug in which the exit status $? is not set when a trap triggered
977	  by the [[...]] command is executed has been fixed.
97805-04-08  Redirection operators can be directly preceded with {varname}
979	  with no intervening space, where varname is a variable name which
980	  allows the shell to select a file descriptor > 10 and store it
981	  into varname.
98205-04-08  SHOPT_CMDLIB_BLTIN=1 now includes <cmdlist.h> generated table.
98305-04-07  [[ -o ?option ]] is true if "option" is a supported option.
98405-04-05  A bug in handling file completion with spaces in the names
985          has been fixed.
98605-03-25  The SIGWINCH signal is caught by default to keeps the LINES and
987	  COLUMNS variables in sync with the actual window size.
98805-03-25  Building ksh with SHOPT_REMOTE=1 causes ksh to set --rc if stdin is
989	  a socket (presumably part of a remote shell invocation.)
99005-03-25  Building ksh with SHOPT_SYSRC=1 causes interactive ksh to source
991	  /etc/ksh.kshrc (if it exists) before sourcing the $ENV file.
99205-03-25  {first..last[..incr][%fmt]} sequences added to brace expansions
993	  when braceexpand is enabled.
99405-03-03  A bug where a SIGCHLD interrupt could cause a fifo open to fail has
995	  been fixed.
99605-02-25  A bug in which a builtin command run in the background could
997	  keep a file descriptor open which could cause a foreground
998	  process to hang has been fixed.
99905-02-24  A bug where builtin library commands (e.g., date and TZ) failed to
1000	  detect environment variable changes has been fixed.
100105-02-22  The read builtin and word splitting are now consistent with respect
1002	  to IFS -- both treat IFS as field delimiters.
100305-02-22  The read builtin no longer strips off trailing delimiters that
1004	  are not space characters when there are fewer variables than fields.
100505-02-17  A builtin bug on systems where dlsym(libcmd) returns link-time
1006	  bindings has been fixed.
100705-02-12  A bug in which the lib_init() function for .paths BUILTIN_LIB
1008	  libraries was not called has been fixed.
100905-02-06  A bug on some systems in which moving the write end of a co-process
1010	  to a numbered file descriptor could cause it to close has been fixed.
101105-02-06  A bug in the vi-edit mode in which the character under the cursor
1012	  was not deleted in some cases with the d% directive has been fixed.
101305-02-06  A bug where external builtin stdout/stderr redirection corrupted
1014          stdout has been fixed.
101505-02-04  A bug where times formatting assumed CLK_TCK==60 has been fixed.
1016
101705-01-11  --- Release ksh93q  ---
101805-01-11  A bug in the integral divide by zero check has been fixed.
101905-01-11  The -l option has been added to read /etc/profile and
1020	  $HOME/.profile, if they exist, before the first command.
102105-01-11  An argument parsing bug that caused `kill -s x -- n' to fail has
1022	  been fixed.
102305-01-11  The .paths file, introduced in ksh93m, which can appear in
1024	  any directory in PATH, now allows a line of the form 'BUILTIN_LIB=.'
1025	  When a command is searched for this directory, and the full path
1026	  matches the path of the built-in version of the command (listed
1027	  by the 'builtin' command) then the built-in version of the command
1028	  is used.  When ksh is built with SHOPT_CMDLIB_DIR=1 then all libcmd
1029	  functions become builtins with the '/opt/ast/bin/' directory prefix.
103005-01-10  A bug in which a nameref to a compound name caused a core dump has
1031	  been fixed.
103205-01-09  A bug in which some SIGCHLD interrupts (from child processes exiting)
1033	  caused a fatal print/echo error diagnostic has been fixed.
103404-12-24  A bug in which some SIGCHLD interrupts (from child processes exiting)
1035          corrupted the internal process/job list, sometimes causing the shell
1036	  to hang, has been fixed.
103704-12-01  A bug in which typeset -Fn truncated less than n digits for large
1038	  numbers has been fixed.
103904-11-25  A bug in which standard error could be closed after a redirection
1040	  to /dev/stderr has been fixed.
104104-11-17  A bug in which an expansion of the form ${array[@]:3} could expand
1042          to ${array[0]} when ${array[3]} was not set has been fixed.
104304-10-22  The -E or -orc command line option reads ${ENV-$HOME/.kshrc} file.
104404-10-22  `-o foo' equivalent to `+o nofoo', `-o nobar' equivalent to `+o bar'.
1045          `--foo' equivalent to `-o foo', `--nofoo' equivalent to `+o foo'
104604-10-05  The .paths file, introduced in ksh93m, which can appear in
1047	  any directory in PATH, now allows a line of the form
1048	  'BUILTIN_LIB=libname'.  When a command is searched for this directory,
1049	  the shared library named by libname will first be searched for a
1050	  built-in version of the command.
105104-09-03  <<< here documents now handle quotes in the word token correctly.
105204-08-08  The maximum size for read -n and and read -N was increased from
1053	  4095 to 32M.
105404-08-04  printf %q was modified so that if an no operand was supplied, no
1055	  no output would be generated rather than a quoted empty string.
105604-08-01  The -n and -N options of the read builtin has been modified
1057	  when reading variables with the binary attribute so that the
1058	  data is stored directly rather than through assignment.
105904-08-01  The shcomp command has been modified to process alias commands
1060	  under some conditions.
106104-07-31  The .sh.match variable added in ksh93l, now works like other
1062	  indexed arrays.
106304-07-08  A loop optimizer bug which occurs when typeset is used in
1064	  a for or while loop inside a function has been fixed.
106504-06-24  The number of subexpressions in a pattern was increased to 64
1066	  from the current number of 20.
106704-06-17  The -t option to read was modified to allow seconds to be
1068	  specified as any arithmetic expression rather than just
1069	  an integral number of seconds, for example even -t 'sin(.5)'
1070	  is now valid.
107104-06-16  Two small memory leak problems were fixed.
107204-06-15  A bug in ${var/pattern/"string"} which occurred when string
1073	  contained pattern matching characters has been fixed.
107404-05-08  printf $'%d\n' produced an erroneous error message and has
1075	  been fixed.
107604-05-24  A bug in which an associative array without any elements could
1077	  cause a core dump when a script with an associative array with
1078	  the same name was declared in a script invoked by name has
1079	  been fixed.
108004-05-11  A bug in which an exec statement could close the script that
1081	  is being processed in a script that is run by name causing
1082	  a failure has been fixed.
108304-04-28  If the first character of assignment to an integer variable was 0,
1084          the variable had been treated as unsigned.  This behavior was
1085          undocumented and has been removed.
108604-04-05  A bug in which the positioning of standard input could be incorrect
1087	  after reading from standard input from a subshell has been fixed.
108804-03-30  A bug in the for loop optimizer which in rare cases could cause
1089	  memory corruption has been fixed.
109004-03-29  The preset alias source='command .' has been added.
109104-03-29  A bug introduced in ksh93p on some systems in which invoked by
1092	  name with #! on the first line would not get the signals handling
1093	  initialized correctly has been fixed.
109404-03-29  A bug introduced in ksh93p in which a HUP signal received by
1095	  a shell that is a session group leader was not passed down to
1096	  its children has been fixed.
1097
109804-02-28  --- Release ksh93p  ---
109904-02-28  The ability to apply an append discipline to any variable has
1100	  been added.
110104-02-14  A bug in which the exportall option (set -a) would cause incorrect
1102	  results for arrays has been fixed.
110304-02-02  A bug in which an exported array would pass more than
1104	  the first element to a script invoked by name has been fixed.
110504-02-02  A bug on some systems in which name=value pairs preceding a script
1106	  invoked by name was not getting passed to the script has been fixed.
110704-01-20  A bug in which an unset discipline function could cause a core
1108	  dump on some systems has been fixed.
110904-01-12  A bug in which a continue or break called outside a loop from
1110	  inside a function defined with name() syntax could affect
1111	  the invoking function has been fixed.
111204-01-08  If a command name begins with ~, only filename completion will be
1113	  attempted rather than pathname completion using the builtin editors.
111404-01-08  A bug in the vi edit mode in which the wrong repeat count on
1115	  multiple word replacements with the . directive has been fixed.
111604-01-06  Backspace characters are now handled correctly in prompt strings.
111704-01-06  The getopts builtin has been modified to accept numerical
1118	  arguments of size long long on systems that support this.
111904-01-06  A bug in which unsetting all elements of an associative array
1120	  would cause it to be treated as an indexed array has been fixed.
112103-12-15  A bug in which a quoted string ending with an unescaped $ would
1122	  delete the ending $ in certain cases has been fixed.
112303-12-05  A bug in which the shell could hang when set -x tracing a command
1124	  when an invalid multibyte character is encountered has been fixed.
112503-12-05  On some systems, if the KEYBD trap is set, then commands that use
1126	  the meta key were not processed until return was hit.  This
1127	  has been fixed.
112803-12-05  A problem which occurred when the login shell was not a group
1129	  leader that could cause it to fail has been fixed.
113003-12-05  A problem in which a shell could core dump after receiving a signal
1131	  that should cause it to terminate while it was in the process
1132	  of acquiring more space has been fixed.
113303-12-05  If ENV is not specified, the shell will default to $HOME/.kshrc
1134	  for interactive shells.
113503-11-21  A bug introduced in ksh93o in which the DEBUG trap could get
1136	  disabled after it triggered has been fixed.
113703-11-04  A bug in which using arithmetic prefix operators ++ or -- on a
1138	  non-lvalue could cause a core dump has been fixed.
113903-11-04  A bug in which leading zeros were stripped from variable
1140	  expansions within arithmetic computation to avoid being treated
1141	  as octal constants when they should not have, has been fixed.
114203-10-08  A bug introduced in ksh93o in which a large here document inside
1143	  a function definition could get corrupted has been fixed.
114403-09-22  A bug in which the .get discipline function was not being
1145	  called when a string variable was implicitly referenced from
1146	  within a numerical expression has been fixed.
114703-09-22  A bug in which a script without a leading #! could get executed
1148	  by /bin/sh rather than the current shell on some systems has
1149	  been fixed.
115003-09-12  To improve conformance with ksh88, leading zeros will be ignored
1151	  when getting the numerical value of a string variable so that
1152	  they will not be treated as octal constants.
115303-09-03  The builtin kill command now processes obsolete invocations
1154	  such as kill -1 -pid.
115503-09-02  The restriction on modifying FPATH in a restricted shell (sh -r)
1156	  has been documented.
115703-09-02  The restricted shell (sh -r) has been modified to disallow
1158	  executing command -p.
115903-08-07  A bug in which the KEYBD trap was not being invoked when
1160	  characters with the 8th bit set has been fixed.
116103-08-02  A parser bug introduced in ksh93o which caused the character
1162	  after () in a Posix function definition to be skipped
1163	  when reading from standard input has been fixed.
116403-08-01  A bug in which "${foo#pattern}(x)" treated (x) as if it were
1165	  part of the pattern has been fixed.
116603-08-01  The command -x option has been modified so that any trailing
1167	  arguments that do expand to a single word will be included
1168	  on each invocation, so that commands like command -x mv * dir
1169	  work as expected.
1170
117103-07-20  --- Release ksh93o+  ---
117203-07-20  A bug in which could cause memory corruption when a posix
1173	  function invoked another one has been fixed.
117403-07-15  A bug in which a file descriptor>2 could be closed before
1175	  executing a script has been fixed.
117603-07-15  A parsing error for <() and >() process substitutions inside
1177	  command substitution has been fixed.
117803-07-15  A parsing error for patterns of the form {...}(...) when
1179	  used inside ${...} has been fixed.
118003-07-15  An error in which expanding an indexed array inside a compound
1181	  variable could cause a core dump has been fixed.
118203-07-15  A bug in which on rare occasions a job completion interrupt
1183	  could cause to core dump has been fixed.
118403-06-26  A bug in which process substitution embedded within command
1185	  substitution would generate a syntax error has been fixed.
118603-96-23  A bug in which ${@:offset:len} could core dump when there
1187	  were no arguments has been fixed.
118803-96-23  A bug in which ${X[@]:offset:len} could core dump when X
1189	  was unset has been fixed.
119003-06-22  The -x option was added to the command builtin.  If this
1191	  option is on, and the number of arguments would exceed ARG_MAX,
1192	  the command will be invoked multiple times with a subset of
1193	  the arguments.  For example, with alias grep='command -x grep,
1194	  any number of arguments can be specified.
119503-06-14  A bug in which could cause a core dump on some systems with
1196	  vi and emacs editors with the MULTIBYTE option has been fixed.
119703-06-06  A bug in which the shell could core dump when a script was
1198	  run from its directory, and the script name a symlink to a file
1199	  beginning with .., has been fixed.
120003-06-05  A bug in which the shell could core dump when a child process
1201	  that it is unaware of terminates while it is calling malloc()
1202	  has been fixed.
120303-06-02  An option named globstar (set -G) has been added.  When enabled,
1204	  during pathname expansion, any component that consists only of ** is
1205	  matches all files and any number of directory levels.
120603-05-30  A bug in which the PATH search could give incorrect results when
1207	  run from directory foo and PATH contained .:foo:xxx has been fixed.
120803-05-29  Some changes were made to the code that displays the prompt in edit
1209	  mode to better handle escape sequences in the prompt.
121003-05-27  I added = to the list of characters that mark the beginning of
1211	  a word for edit completion so that filenames in assignments
1212	  can be completed.
121303-05-20  A bug in which read -N could hang on some systems when reading
1214	  from a terminal or a pipe has been fixed.
121503-05-19  A bug in which the output of uname from a command substitution
1216	  would go to the standard output of the invoking command when
1217	  uname was invoked with a non-standard option has been fixed.
121803-05-19  A job control bug which would cause the shell to exit because
1219	  it hadn't take back the terminal has been fixed.  The bug
1220	  could occur when running a function that contained a pipeline
1221	  whose last element was a function.
122203-05-19  A job control timing bug introduced in ksh93o on some systems
1223	  which could cause a pipeline to hang if the first component
1224	  completed quickly has been fixed.
122503-05-13  The read builtin has been modified so that the builtin editors
1226	  will not overwrite output from a previous incomplete line.
122703-05-13  A bug in which the name of an identifier could have the string
1228	  .sh. prefixed to it after expanding a variable whose name begins
1229	  with .sh. has been fixed.
123003-05-13  A bug in the expansion of $var for compound variables in which
1231	  some elements would not be output when the name was a prefix
1232	  of another name in the compound variable has been fixed.
123303-05-08  The last item in the ksh93o release on 03-01-02 has been
1234	  altered slightly to preserve the leading 0's when the
1235	  preceding character is a digit.  Thus, with typeset -LZ3 x=10,
1236	  $(( 1$x)) will be 1010 whereas $(( $x) will be 10.
123703-04-25  A bug in which if x is a name reference, then nameref y=x.foo
1238	  did not follow x has been fixed.
1239
124003-03-18  --- Release ksh93o  ---
124103-03-18  A -N unary operator was added to test and [[...]] which returns
1242	  true if the file exists and the file has been modified since it
1243	  was last read.
124403-03-18  The TIMEFORMAT variable was added to control the format for
1245	  the time compound command.  The formatting description is
1246	  described in the man page.
124703-03-06  A -N n option was added to read which causes exactly n bytes
1248	  to be read unlike -n n which causes at most n bytes to be read.
124903-03-03  Three new shell variables were added.  The variable .sh.file
1250	  stores the full pathname of the file that the current command
1251	  was found in.  The variable .sh.fun names the current function
1252	  that is running.  The variable .sh.subshell contains the depth
1253	  of the current subshell or command substitution.
125403-03-03  When the DEBUG trap is executed, the current command line after
1255	  expansions is placed in the variable .sh.command.  The trap
1256	  is also now triggered before each iteration of a for, select,
1257	  and case command and before each assignment and redirection.
125803-02-28  Function definitions are no longer stored in the history file so
1259	  that set -o nolog no longer has any meaning.
126003-02-28  All function definitions can be displayed with typeset -f not
1261	  just those stored in the history file.  In addition, typeset +f
1262	  displays the function name followed by a comment containing the
1263	  line number and the path name for the file that defined this function.
126403-02-28  A bug in which the value of $LINENO was not correct when executing
1265	  command contained inside mult-line command substitutions has been
1266	  fixed.
126703-02-19  Since some existing ksh88 scripts use the undocumented and
1268	  unintended ability to insert a : in front of the % and # parameter
1269	  expansion operators, ksh93 was modified to accept :% as equivalent
1270	  to % and :# as equivalent to # with ${name op word}.
127103-02-14  A bug which could cause a core dump when reading from standard
1272	  error when standard error was a pty has been fixed.
127303-02-14  The shell arithmetic was modified to use long double on systems
1274	  that provide this data type.
127503-02-09  A bug in which a function located in the first directory in FPATH
1276	  would not be found when the last component of PATH was . and the
1277	  current directory was one of the directories in PATH has been fixed.
127803-02-07  The trap and kill builtin commands now accept a leading SIG prefix
1279	  on the signal names as documented.
128003-02-05  A bug in the expansion of ${var/$pattern}, when pattern contained
1281	  \[ has been fixed.
128203-02-05  A bug in which .sh.match[n], n>0, was not being set for substring
1283	  matches with % and %% has been fixed.
128403-01-15  A bug in which getopts did not work for numerical arguments specified
1285	  as n#var in the getopts string has been fixed.
128603-01-09  A bug in which using ${.sh.match} multiple times could lead to
1287	  a memory exception has been fixed.
128803-01-06  A bug in the expansion of ${var/pattern/$string} in the case that
1289	  $string contains \digit has been fixed.
129003-01-02  A -P option was added for systems such as Solaris 8 that support
1291	  profile shell.
129203-01-02  For backward compatibility with ksh88, arithmetic expansion
1293	  with ((...)) and let has been modified so that if x is a zero-filled
1294	  variable, $x will not be treated as an octal constant.
1295
129602-12-05  --- Release ksh93n+  ---
129702-11-30  A bug that can show up in evaluating arithmetic statements that
1298	  are in an autoloaded function when the function is autoload from
1299	  another function has been fixed.
130002-11-30  An optimization bug in which an expansion of the form ${!name.@},
1301	  which occurred inside a for or a while loop, when name is a name
1302	  reference, has been fixed.
130302-11-18  A bug in which modifying array variables in a subshell could leave
1304	  side effects in the parent shell environment has been fixed.
130502-11-18  A memory leak when unsetting an associative array has been fixed.
130602-11-14  The code to display compound objects was rewritten to make
1307	  it easier for runtime extensions to reuse this code.
130802-11-14  A change was made to allow runtime builtins to be notified when
1309	  a signal is received so that cleanup can be performed.
131002-10-31  User applications can now trap the ALRM signal.  Previously,
1311	  the ALRM signal was used internally and could not be used
1312	  by applications.
131302-10-31  A bug in which signals received while reading from a coprocess
1314	  for which traps were set was not handled correctly has been fixed.
131502-10-31  A bug in which a file opened with exec inside a subshell could
1316	  be closed before the subshell completed has been fixed.
131702-10-21  A bug in which setting PATH or FPATH inside a function might not
1318	  take effect has been fixed.
131902-10-21  A bug which could cause a core dump when a local SECONDS variable
1320	  is defined in a function has been fixed.
132102-10-15  A bug in which the associate array name operator ${!array[@]}
1322	  could return the same name multiple times has been fixed.
132302-10-15  A bug in which the zero'th element of an associative array was
1324	  not getting set when an assignment was made without a subscript
1325	  specified has been fixed.
1326
132702-09-30  --- Release ksh93n  ---
132802-09-30  The maximum indexed array size was increased to 16Megs.
132902-09-30  A bug which could cause a core dump when changing attributes
1330	  of associative array has been fixed.
133102-09-30  A bug in which exporting an array variable would not export the
1332	  0-th element has been fixed.
133302-09-30  A bug in which an array assignment of the form a=($a ...) would unset
1334	  'a' before the right hand side was evaluated has been fixed.
133502-09-27  A bug in which the error message for ${var?message} when var was
1336	  null or unset did not contain the variable name var has been fixed.
133702-09-27  A bug in which closing file descriptors 0 through 2 could
1338	  cause a subsequent here document to fail has been fixed.
133902-09-14  A bug in whence which occurs when the specified name contained
1340	  a / has been fixed.
134102-09-14  A bug in the parser for strings of the form name$((expr))=value
1342	  has been fixed.
134302-09-14  A for loop optimization bug in which the number of elements in
1344	  an array was treated as an invariant has been fixed.
134502-09-09  A bug in which redirection or closing of a file descriptor between
1346	  3 and 9 could cause a subsequent here document to fail has been
1347	  fixed.
134802-09-09  A bug in which a background job was not removed from the job list
1349	  when a subshell completed has been fixed, for example (prog&).
135002-09-03  A bug in which an assignment of the form name=(integer x=3)
1351	  could be interpretted as an array assignment rather than a
1352	  compound variable assignment has been fixed.
135302-08-19  A command completion bug which occurred on file systems that
1354	  are case insensitive has been fixed.
135502-08-19  A bug which could lead to an exception on some systems (for
1356	  example FREEBSD) which occurred when setting PATH has been fixed.
135702-08-11  A bug in arithmetic rounding in which a value input as a decimal
1358	  string would output as a rounded version of the string has
1359	  been fixed.
136002-08-11  A bug in which the last character could be deleted from shell
1361	  traces and from whence when called from a multibyte locale
1362	  has been fixed.
136302-08-01  A bug which could cause a core dump to occur when a shell script
1364	  is executed while a coprocess is running that has closed the
1365	  output pipe has been fixed.
136602-08-01  A bug in which command completion in multibyte mode could
1367	  corrupt memory for long command lines has been fixed.
1368
136902-06-17  --- Release ksh93n-  ---
137002-06-17  A bug in which user defined macros could cause a core dump in
1371	  with MULTIBYTE mode has been fixed.
137202-06-17  A bug in which printf format specifiers of the form %2$s were causing
1373	  a core dump has been fixed.
137402-06-17  A bug in which setting stty to noecho mode did not prevent the
1375	  echoing of characters by ksh when emacs or viraw mode
1376	  was enabled has been fixed.
137702-06-17  A bug in which background job completion could cause the sleep
1378	  builtin to terminate prematurely has been fixed.
137902-06-17  A bug in which the shell could core dump if getopts was called
1380	  when the OPTIND variable contained a negative value has been fixed.
138102-06-10  The edit mode prompt has been modified to handle escape sequences.
138202-06-10  A bug which occurred for interactive shells in which the builtin
1383	  cat command was used in command substitution on a file whose
1384	  size was larger than PIPE_BUF has been fixed.
138502-06-10  A bug in which the trap on ERR was not being processed when
1386	  set inside a function has been fixed.
138702-06-07  A bug in which function definitions could cause the history count
1388	  to be decremented by one (and even become negative) has been fixed.
138902-06-05  A bug in read in which share mode could be enabled has been fixed.
139002-05-28  A bug which could occur when the last command of a script was
1391	  a case statement and the action selected ended in ;& instead of ;;
1392	  has been fixed.
139302-05-23  A bug with unary + introduced in ksh93k has been fixed.
139402-05-07  A bug in substitutions of the form ${var/pattern/string} in which
1395	  a backslash was inserted in the replacement string when it contained
1396	  a special pattern character has been fixed.
139702-05-01  A bug in the emacs edit mode which occurred in versions compiled
1398	  for multibyte character sets which occurred when a repeated search
1399	  was requested after a long line had been returned for the previous
1400	  search has been fixed.
140102-04-02  vi and emacs edit modes were modified so that tab completion is
1402	  disabled when invoked from the read built-in.
1403
140402-03-26  --- Release ksh93m+  ---
140502-03-26  A bug in which \ was not handled correctly when used in file
1406	  expansion has been fixed.
140702-02-18  A bug in which lines beginning with a # were deleted from here
1408	  documents when the here-document delimiter was followed by
1409	  a comment has been fixed.
141002-12-06  An optimization bug in which ${!x[@]) was treated as invariant in
1411	  a for loop has been fixed.
141202-02-06  A bug in which the ERR trap is not cleared for a script invoked
1413	  by name from within a function has been fixed.
141402-01-08  A bug in which a shell script executed from within a subshell
1415	  could cause this script to have an invalid pointer leading
1416	  to a memory fault has been fixed.
141702-01-07  Added here documents of the form <<< word (as per zsh) which
1418	  is equivalent to << delim\nword\ndelim.
141902-01-07  A bug in which the first word of a compound assignment,
1420	  x=(word ...), was treated as a reserved word has been fixed.
142102-01-07  A bug in the handling of \ when noglob was enabled and a
1422	  substitution of the form ${word op pattern} occurred in the
1423	  same word has been fixed.
142402-01-07  A compilation option, CMDLIB_BLTIN in the file OPTION, has
1425	  been added.  When this options is set, all commands implemented
1426	  in libcmd become shell builtin commands by default.
142702-01-07  A bug in which builtin foo, where foo is already a builtin
1428	  would result in the builtin foo getting removed has been fixed.
142902-01-07  A bug which the shell executed a command found in the current
1430	  directory when PATH have no valid directories has been fixed.
143101-11-28  The value of $? was not being set when called with exit.
143201-11-28  If the last command was of the form (...) and a trap on EXIT or
1433	  ERR was set, and the command inside () modified the trap, then
1434	  the original trap wasn't executed.
143501-11-26  The value for 0 is now preceded by the base number when
1436	  the base was not 10.
143701-11-26  The default has compilation mode has been changes so that
1438	  viraw mode will always be on.
1439
144001-10-31  --- Release ksh93m  ---
144101-10-31  A for loop optimizer bug for subshells contained withing for
1442	  loops has been fixed.
144301-10-16  typeset without arguments no longer outputs variable names
1444	  that do not have any attributes that are set.
144501-10-16  A bug introduced in ksh93l in which assignments specified with
1446	  the exec built-in were not being expanded properly has been
1447	  fixed.
144801-10-11  An optimization bug in which ${!x) was treated as invariant in
1449	  a for loop has been fixed.
145001-10-11  Unsigned integer variables in bases other than 10 are printed now
1451	  expand in that base with the base prefix.
145201-10-10  A number of typos in the self generating man pages for shell
1453	  built-ins have been fixed.
145401-10-04  The self generated man pages for hist and fc were not working
1455	  correctly and have been fixed.
145601-10-03  Yet another optimizer bug in which shell patterns were
1457	  treated as invariants has been fixed.
145801-09-27  Two bugs relating to multibyte history searches and to find
1459	  have been fixed.
146001-09-27  A bug introduced in ksh93k in which the PATH searching was
1461	  not restored after running a command with an assignment list
1462	  has been fixed.
146301-09-26  A bug in which a zero filled field was treated as octal when
1464	  converted to integer has been fixed.
146501-09-26  Yet another bug in the optimization of for loops related to
1466	  recursive functions with break or continue statements has been fixed.
146701-09-25  The exponentiation operator ** was added to the shell arithmetic
1468	  evaluation.  It has higher precedence than * and is left
1469	  associative.
147001-09-25  The code was modified to use the ast multibyte macros
1471	  and functions for handing multibyte locales.
147201-09-25  The expansion ${parameter:offset:length} now handles negative
1473	  offsets which cause offsets to be measured from the end.
147401-09-25  Some spelling errors in the documentation were corrected.
147501-09-24  The /dev/tcp/host/port and /dev/udp/host/port now allow
1476	  the ports to be specified by service name.
147701-09-24  The change staring with ksh93g in which the the appropriate
1478	  library path variable is prepended with a corresponding library
1479	  directory has been modified.  With the new method, only the
1480	  library path defined in the file named .paths in the directory
1481	  where the executable is found will be modified.  See the
1482	  man page for more details.
148301-09-23  The .fpath file (see ksh93h) is no longer looked for in each
1484	  directory on the path to locate function directories.  The
1485	  file named .paths is used instead.
148601-09-23  A bug in which IFS was not being restored after being changed in
1487	  a subshell has been fixed.
148801-09-16  With the vi and emacs edit modes, after a list of command
1489	  or functions is generated with = or M-= respectively,
1490	  any element from the list can be pasted on the command line
1491	  by preceding the = or M-= with a numeric parameter specifying
1492	  the position on the list.
149301-09-16  A bug in ksh93l caused command completion not to find aliases
1494	  and functions.  Command listing from the edit mode was presented
1495	  in reverse order.  This has been fixed.
149601-09-13  Another bug in the optimization of for loops related to subshells
1497	  when traps were set has been fixed.
149801-09-07  A change in ksh93l caused brace expansion to stop working
1499	  and this has been fixed.
150001-09-04  A bug introduced in ksh93k in which an arithmetic statement
1501	  within a function that used name references did not follow the
1502	  reference has been fixed.
150301-09-04  A bug introduced in ksh93l in which export -p did not prefix
1504	  each export with the word export has been fixed.
150501-08-29  A bug in multibyte input which occurred when a partial multibyte
1506	  character was received has been fixed.
150701-08-29  A bug introduced in ksh93l which could cause a core dump
1508	  when an assignment list containing PATH is specified inside
1509	  command substitution has been fixed.
151001-08-09  Another bug in the optimization of for loops in ksh93l caused
1511	  errors in recursive functions using local variables that
1512	  contained for loops has been fixed.
151301-07-27  A bug in which IFS would be unset after a command substitution
1514	  inside a here document has been fixed.
151501-07-26  To conform to the POSIX standard, if you invoked ksh name,
1516	  and name does not contain a /,  it will first try to run
1517	  one in the current directory whether it is executable or not
1518	  before doing a path search for an executable script.  Earlier
1519	  versions first checked for an executable script using the
1520	  PATH variable.
152101-07-23  A bug in which unset -f invoked in a subshell could unset a
1522	  function defined in the parent has been fixed.
152301-07-16  A bug in the optimization of for loops in ksh93l caused
1524	  name references to be treated as invariants has been fixed.
152501-07-09  A bug in which a discipline function applied to a local variable
1526	  could cause a shell exception has been fixed.  Discipline
1527	  functions can only be specified for global variables.
1528
152901-06-18  --- Release ksh93l  ---
153001-06-18  A bug in assigning integers larger than can be represented as
1531	  long integers to floating point variables has been fixed.
153201-06-18  A bug in the handling of unsigned integers (typeset -ui) has
1533	  been fixed.
153401-06-04  The evaluation of the PS1 prompt no longer effects the value
1535	  of the $? variable.
153601-06-01  A small memory leak from subshells has been fixed.
153701-05-22  A bug in which attributes for variables that did not have
1538	  values would be lost after a subshell has been fixed.
153901-05-22  The %R format has been added to convert a shell pattern into
1540	  an extended regular expression.
154101-05-22  The escape sequences \e, \cX, \C[.collating-element.], and
1542	  \x{hex} have been added to ASCII-C strings and to printf format
1543	  strings.
154401-05-20  Patterns of the form {n}(pattern) and {m,n}(pattern) are now
1545	  recognized.  The first form matches exactly n of pattern whereas,
1546	  the second form matches from m to n instances of pattern.
154701-05-20  The shell allows *-(pattern), +-(pattern),  ?-(pattern),
1548	  {m,n}-(pattern}, and @-(pattern) to cause the minimal
1549	  match of pattern to be selected whenever possible rather
1550	  than the maximal (greedy) match.
155101-05-20  The character class [:word:] has been added to patterns.
1552	  The word class is the union of [:alnum:] and the character _.
155301-05-20  Inside (...) pattern groups, the \ character is now treated
1554	  specially even when in an enclosing character class.  The
1555	  sequences, \w, \d, \s are equivalent to the character classes
1556	  word, digit, and space respectively.  The sequences \W, \D,
1557	  and \S are their complement sets.
155801-05-20  The shell now recognizes pattern groups of the form
1559	  ~(options:pattern) where options or :pattern can be omitted.
1560	  Options use the letters + and - to enable and disable options
1561	  respectively.  The option letters g (greedy), i (ignore case)
1562	  are used to cause maximal matching and to cause case
1563	  insensitive matching respectively.  If :pattern is also
1564	  specified, these options are only in effect while this
1565	  pattern is being processed.  Otherwise, these options remain
1566	  in effect until the end of the pattern group that they are contained
1567	  in or until another ~(...) is encountered.  These pattern groups
1568	  are not counted with respect to group numbering.
156901-05-14  When edit completion, expansion, or listing occurs in the
1570	  middle of a quoted string, the leading quote is ignored when
1571	  performing the completion, expansion, or listing.
157201-05-14  A small memory leak from subshells has been fixed.
157301-05-10  A bug in which open files were not restored after a subshell
1574	  that had used exec to replace a file has been fixed.
157501-05-10  Redirection to a null file name now generates an error message.
157601-05-09  The shell now rejects some invalid parameter substitutions that
1577	  were previously processed in undefined ways.
157801-05-09  A bug in which the output of select was not flushed before the
1579	  read when input did not come from the terminal has been fixed.
158001-05-08  A bug in which job ids would not be freed for interactive shells
1581	  when subshells ran built-ins in the background has been fixed.
158201-05-08  The FPATH variable now requires an explicit . to cause the
1583	  current directory to be treated as a function directory.
158401-05-08  A bug in read -n when echo mode was disabled has been fixed.
158501-05-07  A bug in which function definitions could be listed as part
1586	  of the history has been fixed.
158701-04-30  This release uses a new and often much faster pattern matcher than
1588	  earlier releases.
158901-04-30  An optimizer now eliminates invariant parameter expansions from
1590	  for while and until loops.
159101-04-30  The variable .sh.match is set after each pattern match (# % or /)
1592	  in a variable substitution.  The variable .sh.match is an
1593	  indexed array with element 0 being the complete match.
1594	  The array is only valid until the next subsequent pattern
1595	  match or until the value of the variable changes which ever
1596	  comes first.
159701-04-30  A self generating man page has been added to shcomp.  Also,
1598	  shcomp now stops compiling when it finds an exit or exec
1599	  command and copies the remainder so that it can be used
1600	  for standard input.
160101-04-30  The shcomp command was modified so that it can work in an
1602	  EBCIDIC environment and that binary scripts are portable
1603	  across environments.
160401-04-30  A bug in the handling of a trailing : in PATH has been fixed.
160501-04-30  A bug in which the builtin version of a command would get invoked
1606	  even though the full pathname for the command was specified
1607	  has been fixed.
160801-04-30  A bug in which read would loose the last character when
1609	  reading the last line of a file that did not contain a new-line
1610	  character has been fixed.
161101-04-23  A bug on some systems in which in vi mode the end of file
1612	  character and end of line character could be swapped has
1613	  been fixed.
161401-04-23  A bug on some systems in which invoking a shell script that
1615	  did not have execute permission could set the exit value to
1616	  127 rather than 126 has been fixed.
161701-04-20  A bug in which read -n from a pipe would block if fewer than
1618	  n characters was received has been fixed.
161901-04-09  A bug in which invalid patterns, for example, ) by itself,
1620	  was not treated as a string has been fixed so that if i=')',
1621	  then [[ $i == $i ]] is true.
162201-04-09  The shell arithmetic now interprets C character constants.
162301-04-09  A bug in which a non-zero return from a function defined
1624	  with the function reserved word did not trigger the ERR
1625	  trap or exit with set -e has been fixed.
162601-04-02  A bug on some systems, in which characters above 127 were
1627	  not displayed correctly in vi or emacs edit mode has been fixed.
162801-04-02  A bug on some systems, introduced in the 'k' point release, in
1629	  which the erase character in viraw mode was moving the cursor
1630	  to the left without erasing the character has been fixed.
163101-04-02  On some systems the wcwith() function was returning a wrong
1632	  value for characters and caused characters to be displayed
1633	  incorrectly from the shell edit modes.  A work around for
1634	  this problem has been added.
163501-03-26  A bug in which valid scripts could produce syntax errors
1636	  when run with locales that considered characters such as "'"
1637	  to be space characters has been fixed.
163801-03-20  A bug in which an syntax error in an arithmetic expression
1639	  entered interactively could cause the shell to go into
1640	  an infinite loop outputting the error message has been fixed.
164101-03-10  ksh93 accepts -l as a synonym for -L in test on systems for
1642	  which /bin/test -l tests for symbolic links.
164301-03-10  A bug in parsing scripts in which { and } are used in place of
1644	  in and esac in case statements embedded in compound commands
1645	  has been fixed.  Use of { and } for in and esac is obsolete.
164601-03-06  A bug in which an argument of the form foo=bar was not
1647	  being passed correctly to a traced function whose name
1648	  was foo has been fixed.
164901-03-02  Using $(trap -p name) did not print the name of the current
1650	  trap setting for trap name.
165101-02-26  Exported floating point variables gave incorrect results
1652	  when passing them to ksh88.  This has been fixed.
165301-02-25  A race condition in which a coprocess which completed too quickly
1654	  would not allow subsequent coprocesses to start has been fixed.
165501-02-25  The 'g' format specifier is now handled by printf.  It had
1656	  inadvertently been omitted.
165701-02-20  The + was not being displayed during an execution trace
1658	  with the += assignment operator.
165901-02-19  The error message which occurs when the interpreter name
1660	  defined on the #! line does not exist is more informative.
166101-02-19  A bug in which $0 would not be set correctly when a
1662	  script with #! was invoked by full pathname from the
1663	  directory of the script has been fixed.
166401-02-19  A shell script did not always pick up tty mode changes
1665	  made by external commands such as stty which could
1666	  effect the behavior of read.
166701-02-19  The -u, -g, and -k unary tests did not give the correct
1668	  results when used with negation and this has been fixed.
1669
167001-02-05  --- Release ksh93k+  ---
167101-02-05  The sequence \<newline> inside $'...' was not incrementing
1672	  the line count and this has been fixed.
167301-02-05  Modified expansion of "${@-}" so that if no arguments are set
1674	  it results in null string rather than nothing.
167501-02-02  memory leak problem with local variables in functions fixed.
167601-01-25  allow arithmetic expressions with float%int and treat them
1677	  as ((int)float)%int rather than as an error.
167801-01-19  read -n1 was not working and has been fixed.
167901-01-17  ksh now handles the case in which a here document in command
1680	  substitution $() is terminated by the trailing ).  Previously,
1681	  a new-line was needed at the end of the delimiter word.
168201-01-02  A bug in which a KEYBD trap would cause a multi-line token
1683	  to be processed incorrectly has been fixed.
168400-12-10  Arithmetic integer constants can now have L and U suffices.
168500-12-10  A bug in the processing of arithmetic expressions with compound
1686	  variables when the -n option is on has been fixed.
168700-12-08  A bug in M-f and M-b from emacs mode has been fixed.  This
1688	  bug only occurs when ksh93 is compiled without MULTIBYTE enabled.
168900-11-29  A bug in which jobs -p would yield 0 for background
1690	  jobs run in a script has been fixed.
169100-11-21  A bug in integer arrays in which the number of elements is
1692	  incorrect when the ++ operator is applied to a non-existing
1693	  element has been fixed.  For example, integer x; ((x[3]++)).
169400-11-20  A timing bug in which the shell could reset the terminal
1695	  group to the wrong value in the case that the a new process
1696	  changes the terminal group during startup has been fixed.
1697
169800-10-27  --- Release ksh93k  ---
169900-10-27  Using tab for completion now works only when applied
1700	  after a non-blank character at the end of the current line.
1701	  In other case a tab is inserted.
170200-10-27  A bug in the emacs edit mode for ^X^E has been fixed.
1703	  The ^X^E sequence is supposed to invoke the full editor
1704	  on the current command.
170500-10-18  A bug in which expansions of the form ${var//pattern/string}
1706	  did not work correctly when pattern was '/' or "/" has
1707	  been fixed.
170800-10-18  The output format for indexed arrays in compound variables
1709	  has been modified so that it can be used as input.
171000-10-18  Assignments with name references (typeset -n) will now
1711	  implicitly unreference an existing name reference.
171200-10-17  A bug the += append operator when a single array element
1713	  is appended to a variable that is not an array has been fixed.
171400-10-16  A bug in which the SIGCONT signal was being sent to
1715	  each process will kill -0 or kill -n 0 has been fixed.
171600-10-12  The arithmetic evaluation portion has been rewritten to
1717	  perform a number of optimizations.
171800-10-10  A bug in which name prefix matching ${!name.*} was not
1719	  checking name to see if it was a name reference has been fixed.
172000-09-26  A bug in the multibyte version in which the width of for
1721	  non-printing characters was not correct has been fixed.
172200-09-12  Made changes to get multibyte editing work on UWIN for windows
172300-09-12  A bug in which multibyte characters would be displayed incorrectly
1724	  has been fixed.
172500-08-08  Removed build dependency on iswprint() and iswalph().
172600-07-20  In some cases the read builtin would read more than a single
1727	  line from a pipe on standard input and therefore leave the seek
1728	  position in the wrong location.
172900-07-05  If the directory / is on the path, a / will not be inserted
1730	  between the directory and the file name during path searching
1731	  to avoid searching // for systems that treat this specially.
173200-06-26  A bug in which on rare occasions wait could return before all
1733	  jobs have completed has been fixed.
173400-06-21  A bug in which backspace did not work correctly during the
1735	  R replace directive in vi-mode has been fixed.
173600-06-12  Added variable name completion/expansion/listing  to the set of
1737	  completions.  Variable name completions begin with $ or "$ followed
1738	  by a letter.
173900-05-09  --- Release ksh93j  ---
174000-05-09  Modified command substitution to avoid using /tmp files when
1741          run on read-only file systems.
174200-04-17  Modified printf to handle '%..Xc' and '%..Xs' options where X
1743	  is not an alpha character.  Previous versions core dumped with this.
174400-04-10  Changes to multibyte editing code were made to use standard
1745	  ISO C functions rather than methods devised before the standard.
174600-04-09  Add %H options to printf to output strings with <"'&\t> properly
1747	  converted for use in HTML and XML documents.
174800-04-07  Modified getopts builtin to handle \f...\f in usage string
1749	  by invoking specified function.
175000-04-04  Added self generating man pages for bg, fc, fg, disown, jobs,
1751	  hist, let, ., and ulimit.
175200-03-30  The append operator += has been added and can be used
1753	  for all assignments, strings, arrays, and compound variables.
175400-03-30  Code was modified in several places to support automatic
1755	  generation of C locale dictionaries.
175600-03-28  A bug in which the set and trap commands invoked with --name
1757	  type arguments would terminate the invoking script  has
1758	  been fixed.
175900-03-27  A bug in which the library path variable was not updated
1760	  correctly on some systems as described in the 'g' point
1761	  release has been fixed.
176200-03-07  printf now returns a non-zero exit status when one of
1763          its arguments cannot be converted to the given type.
176400-03-05  The return value and error message for a command that
1765          was found on the path but was not executable was set
1766          incorrectly.
176700-03-05  A prototype for ioctl() was removed from the vi edit mode.
1768
176900-01-28  --- Release ksh93i  ---
177000-01-28  Most of the built-in commands and ksh itself are now
1771          self documenting.  Running command --man will produce
1772          screen output.  Running command --html produces the
1773          man page in html format.
177400-01-28  The getopts builtin can process command description
1775          strings to produce man pages.
177600-01-28  A bug in which a script could terminate when getopts
1777          encountered an error when invoked inside a function
1778          has been fixed.
177900-01-28  When a symbolic link was specified as the name of
1780          the script to invoke by name, the value of $0 was
1781          set to the real file name rather than the link name
1782          in some cases and this has been fixed.
178300-01-28  A bug in which the precision given as an argument
1784	  to printf was not working has been fixed.
1785
178699-03-31  --- Release ksh93h  ---
178799-03-31  The PATH search algorithm has been modified to look
1788	  for a file named .fpath in each bin directory and if
1789	  found, to search for functions in this directory if
1790	  it cannot find the command in that directory.
179199-03-31  When performing pathname expansion, the shell checks
1792	  to see whether each directory it reads is case sensitive
1793	  or not, and performs the matching accordingly.
179499-03-31  The %T format for printing formatted date/time.
179599-03-31  The emacs and vi modes now handle arrow keys when
1796          they use standard ANSI escape sequences.
179799-03-31  The TAB key can be used for completion in emacs and viraw mode.
179899-03-31  A bug in setting .sh.editchar during the KEYBD trap
1799	  for the MULTIBYTE option was fixed in release ksh93h.
180099-03-31  A bug in shcomp for compilation of unary operators with [[...]]
1801	  has been fixed.
180299-03-31  A bug in which the value of $? was changed when executing
1803	  a keyboard trap has been fixed.
180499-03-31  The handling of SIGCHLD has been changed so that the
1805	  trap is not triggered while executing trap commands
1806	  to avoid recursive trap calls.
180799-03-31  A bug in which a local variable in a function declared readonly
1808	  would generated an error when the function went out of
1809	  scope has been fixed.
181099-03-31  A bug in which \<new_line> entered from the keyboard
1811	  with the KEYBD trap enabled has been fixed.
181299-03-31  The error message for a misplaced ((, for example print ((3),
1813	  was often garbled and has been fixed.
181499-03-31  A bug in the KEYBD trap in which escape sequences of the form
1815	  <ESC>[#~ were not being handled as a unit has been fixed.
181699-03-31  A bug in which ksh would consider expressions like [[ (a) ]]
1817	  as syntax errors has been fixed.
181899-03-31  A function defined as foo() without a function body
1819	  was not reported as a syntax error.
182099-03-31  A bug in which ksh could run out of file descriptors when
1821	  a stream was repeatedly opened with exec and read from
1822	  has been fixed.
1823
182498-04-30  --- Release ksh93g  ---
182598-04-30  The pipefail option has been added.  With pipefail
1826	  enabled, a pipeline will not complete until all
1827	  commands are complete, and the return value will
1828	  be that of the last command to fail, or zero if
1829	  all complete successfully.
183098-04-30  The name-value pair library uses the cdt library rather
1831	  than the hash library.  This change should be transparent
1832	  to applications.
183398-04-30  On the U/WIN version for Window 95 and Windows NT,
1834          when a directory beginning with a letter followed by
1835          a colon is given to cd, it is assumed to be an absolute
1836          directory
183798-04-30  When an executable is found on a given path,
1838	  the appropriate library path variable is prepended
1839	  with a corresponding library directory.
184098-04-30  A bug in which a name reference could be created to
1841	  itself and later cause the shell to get into an infinite
1842	  loop has been fixed.
184398-04-30  A bug in shcomp relating to compound variables was fixed.
184498-04-30  A bug introduced in ksh93e in which leading 0's in -Z
1845	  fields caused the value to be treated as octal for arithmetic
1846	  evaluation has been fixed.
184798-04-30  A bug when a name reference with a shorter name than
1848          the variable it references was the subject of a compound
1849	  assignment has been fixed.
185098-04-30  A bug which in which assignment to array variables in
1851	  a subshell could effect the parent shell has been
1852	  fixed.
185398-04-30  read name?prompt was putting a 0 byte at the end of the
1854	  prompt on standard error.
185598-04-30  A bug in [[ string1 > string2 ]] when ksh was run with -x
1856	  has been fixed.
185798-04-30  A bug in which the escape character was not processed
1858	  correctly inside {...} when brace expansion is enabled
1859	  has been fixed, for example {\$foo}.
186098-04-30  A bug in line continuation in here-documents has been
1861	  fixed.
186298-04-30  The default base when not specified with typeset -i is
1863	  10 in accordance with the documentation.  Previously,
1864	  the value was determined by the first assignment.
186598-04-30  A parsing bug in which a # preceded alphanumeric
1866	  characters inside a command substitution caused
1867	  a syntax error to be reported has been fixed.
186898-04-30  A bug in which a decimal constant represented as 10#ddd
1869	  where ddd was more than five digits generated a syntax
1870	  error has been fixed.
187198-04-30  A bug in here document expansion in which ${...} expansions
1872	  were split across buffer boundaries has been fixed.
187398-04-30  The sh_fun() function now takes third argument which
1874	  is an argument list for the invoked discipline function
1875	  or built-in.
187698-04-30  A callback function can be installed which will give
1877          notification of file duplications and file closes.
187898-04-30  When ksh is compiled on systems that do not use fork()
1879	  current option settings where not propagated to sub-shells.
1880
188197-06-30  --- Release ksh93f  ---
188297-06-30  Hostnames in addition to host addresses can be given in
1883	  /dev/tcp/host/port virtual file names.
188497-06-30  File name completion and expansion now quotes special
1885	  characters in file names from both emacs and vi edit modes.
188697-06-30  An empty for list behave like a for list with null expansions.
1887	  It produces a warning message with sh -n.
188897-06-30  The code has been modified to work with EBCDIC as well as ASCII.
188997-06-30  A bug which would cause the secondary prompt to be
1890	  displayed when a user entered a literal carriage
1891	  return has been fixed.
189297-06-30  A bug which caused ksh read -s name to core dump was
1893	  fixed.
189497-06-30  A bug with the expansion of \} and \] inside double
1895	  quoted strings that also contained variable expansions
1896	  has been fixed
189797-06-30  Changes in the ksh93e point release caused autoload
1898	  functions invoked from within command substitution
1899	  to fail.  This has been fixed.
190097-06-30  A bug in the processing of here-documents that could
1901	  prevent variable substitution to occur after $(...) command
1902	  substitution for long here documents has been fixed.
190397-06-30  A bug caused by a race condition that could cause SIGTERM
1904	  to be ignored by a child process has been fixed.
190597-06-30  A bug which prevented the startup of a coprocess immediately
1906	  after killing a running coprocess has been fixed.
190797-06-30  ulimit foobar, where foobar is not an arithmetic
1908	  expression, now gives an error message as it did with ksh88
1909	  instead of setting the file size limit to 0.
191097-06-30  A bug which could cause an interactive shell to terminate when
1911	  the last process of a pipeline was a POSIX function was fixed.
191297-06-30  A bug which could cause command substitution of a shell script
1913	  to core dump has been fixed.
191497-06-30  A security hole was fixed in suid_exec.
191597-06-30  Arithmetic functions such as pow() that take more than
1916	  one argument, did not work if arguments other than the
1917	  first contained parenthesized sub-expression.
191897-06-30  The error message from a script containing an incomplete
1919	  arithmetic expression has been corrected.
192097-06-30  A bug which caused a core dump on some machines when
1921	  the value of a name reference contained a positional
1922	  parameter and the name reference was not defined inside
1923	  a function has been fixed.
192497-06-30  Arithmetic expressions now correctly handle hexadecimal
1925	  constants.
192697-06-30  A bug in which integer variables could be expanded
1927	  with a leading 10# when declared with typeset -i
1928	  multiple times has been corrected.
192997-06-30  A bug in which IFS wasn't correctly restored when
1930	  set within command substitution has been fixed.
193197-06-30  The _ character is now considered as part of a word
1932	  with the M-f and M-b emacs directives as it was in ksh88.
193397-06-30  A bug in brace pattern expansions that caused expressions
1934          such as {foo\,bar,bam} to expand incorrectly have been fixed.
1935
1936
193796-07-31  --- Release ksh93e  ---
193896-07-31  The math functions, atan2, hypot, fmod, and pow were added.
193996-07-31  When a shared library is loaded, if the function lib_init()
1940	  is defined in the library, it is invoked the first time that
1941	  the library is loaded with builtin -f library.
194296-07-31  The k-shell information abstraction database option, KIA,
1943          has been revamped.
194496-07-31  Empty command substitutions of the form $() now work.
1945	  whence -v foo now gives the correct result after calling
1946	  builtin -d foo.
194796-07-31  A bug in right to left arithmetic assignment for which
1948	  the arithmetic expression (( y = x = 1.5 )) did not
1949	  yield 1 for y when x was declared typeset -i was fixed.
195096-07-31  printf has been fixed to handle format  containing \0
1951	  and/or \0145 correctly.  In addition, characters following
1952	  %b in the format string are no longer displayed when
1953	  the operand contains \c.
195496-07-31  A bug in printf that could cause the %E format to
1955	  produce unnormalized results has been fixed.
195696-07-31  A bug which causes some arithmetic expressions to be
1957	  incorrectly evaluated as integer expressions rather
1958	  that floating point has been fixed.
195996-07-31  Functions defined inside a subshell no longer remain
1960	  defined when the subshell completes.
196196-07-31  The error message from sh -c ';echo foo' has been
1962	  corrected.
196396-07-31  The format for umask -S has been changed to agree
1964	  with the specification in the POSIX standard.
196596-07-31  A bug that caused side effects in subscript evaluation
1966	  when tracing was enabled for subscripts using ++ or --
1967	  has been fixed.
196896-07-31  To conform to the Posix standard getopts has been changed
1969	  so that the option char is set to ? when it returns with
1970	  a non-zero exit status.
197196-07-31  The handling of \} inside ${name...} has been fixed so
1972	  that the \ quotes the }.
197396-07-31  A bug that caused the read builtin to resume execution
1974	  after processing a trap has been fixed.
197596-07-31  [[ -s file ]] has been fixed so that if file is open
1976	  by ksh, it is flushed first.
197796-07-31  In some cases attributes and sizes for non exported
1978	  variables weren't being reset before running a script.
197996-07-31  The value of TMOUT was affected by changes make to
1980	  it in a subshell.
198196-07-31  The jobs command did not reflect changes make by
1982	  sending the CONT signal to a command.
198396-07-31  The error message for ksh -o unknown was incorrect.
198496-07-31  Functions invoked as name=value name, did not use
1985	  values from the calling scope when evaluating value.
198696-07-31  A bug in which the shell would reexecute previously
1987	  executed code when a shell script or coprocess was
1988	  run in the background has been fixed.
198996-07-31  A bug in which an empty here-document would leave
1990	  a file descriptor open has been fixed.
199196-07-31  A bug in which $(set -A array ...) would leave a
1992	  side effect has been fixed.
199396-07-31  A discipline function for a global variable defined
1994	  within a function defined with the function keyword,
1995	  incorrectly created a local variable of the same name
1996	  and applied the discipline to it.
1997
199895-08-28  --- Release ksh93d  ---
199995-08-28  The \ character was not handled correctly in replacement
2000	  patterns with ${x/pattern/replace}.
200195-08-28  A bug with read in which the line did not end with
2002	  a new-line has been fixed.
200395-08-28  A bug in file name generation which sometimes
2004	  appended a . for filenames that ended in / has
2005	  been fixed.
200695-08-28  If a process is waited for after a status has
2007	  been returned by a previous wait, wait now
2008	  returns 127.
200995-08-28  A bug with hist (fc) -e which prevented a command
2010	  to re-executed after it had been edited has been fixed.
201195-08-28  A bug which prevented quoting from removing the meaning
2012	  of unary test operators has been fixed.
201395-08-28  A bug with typeahead and KEYBOARD traps with the
2014          MULTIBYTE option set has been fixed.
201595-08-28  Builtin functions can take a third argument which is
2016          a void*.
201795-08-28  The nv_scan() function can restrict the scope of a walk
2018          to the top scope.
2019
202095-04-31  --- Release ksh93c  ---
202195-04-31  The expansion of "$@" was incorrect when $1 was the null
2022	  string.
202395-04-31  A bug which could incorrectly report a syntax error in
2024	  a backquoted expression when a $ was preceded by \\
2025	  has been fixed.
202695-04-31  A bug which prevented the shell from exiting after
2027	  reporting an error when failing to open a script
2028	  has been fixed.
202995-04-31  A bug that could lead to memory corruption when a
2030	  large here document that required parameter or command
2031	  substitution was expanded has been fixed.
203295-04-31  A bug that could cause a core dump on some systems
2033	  after ksh detected an error when reading a function
2034	  has been fixed.
203595-04-31  A bug which could cause a coprocess to hang when
2036	  reading from a process that has terminated has been fixed.
203795-04-31  A bug which caused a script to terminate when set -e
2038	  was on and the first command of and && or || list
2039	  failed has been fixed.
204095-04-31  A bug with here documents inside $(...) when the delimiter
2041	  word is an identifier has been fixed.
204295-04-31  A bug which caused $0 to display the wrong value when
2043	  a script was invoked as an argument to the . command
2044	  and the eval command has been fixed.
204595-04-31  A bug that could cause the built-in sleep to hang
2046	  has been fixed.
204795-04-31  A bug introduces in 12/28/93b which caused the backslash
2048	  to be removed when it was followed by digit inside double
2049	  quotes in some instances has been fixed.
205095-04-31  A bug which could cause a core dump if ksh was invoked with
2051	  standard input closed has been fixed.
205295-04-31  A bug which could cause a core dump if typeset -A was
2053	  specified for an existing variable has been fixed.
205495-04-31  Variables that were unset but had attributes such as readonly
2055	  and export were not listed with readonly, export and typeset.
205695-04-31  Several problems with signals have been fixed.
205795-04-31  A bug which prevented ulimit -t from working has been fixed.
2058	  Also, a bug in which failed ulimits could cause a core dump
2059	  has also been fixed.
206095-04-31  A bug in expansion of the form ${name/#pattern/string} and
2061	  ${name/%pattern/string} has been fixed.
206295-04-31  A bug which caused read -r on a line that contained only
2063	  blanks to get a non-null value has been fixed.
206495-04-31  A bug introduced in the 'a' point release in which
2065	  ${x='\\'} expanded to \ when x was unset has been fixed.
206695-04-31  A bug which prevented a trap on EXIT from being executed
2067	  when the last command in a script was a function invocation
2068	  has been fixed.
206995-04-31  A bug which caused an interactive shell ignore input when
2070	  standard error was redirected to a file with exec,
2071	  and then restored with exec 2>&1 has been fixed.
207295-04-31  An interactive shell turns on monitor mode even when
2073	  standard error has been redirected to a file.
207495-04-31  A bug which could cause standard input to be incorrectly
2075	  positioned for the last command of a script has been fixed.
207695-04-31  A bug in the edit modes which allowed walking back in
2077	  the history file for more than HISTSIZE commands has
2078	  been fixed.
207995-04-31  A bug which could cause a core dump if variable TMPDIR was
2080	  changed between two command substitutions has been fixed.
208195-04-31. A bug which prevented a trap on EXIT from being cleared
2082	  has been fixed.
208395-04-31  A bug fixed for the v directive in vi MULTIBYTE has been
2084          fixed.
208595-04-31  Code to for IFS handling of multibyte characters has
2086          been added.
208795-04-31  The displaying of multibyte strings in export, readonly,
2088          typeset, and execution traces has been fixed.
208995-04-31  Variables inside functions are now statically scoped.
2090	  The previous behavior was never documented.
209195-04-31  Variables inside functions are now statically scoped.
2092          The previous behavior was never documented.
209395-04-31  A few changes have been made to the name-value library
2094          that affect built-ins that use disciplines.  The
2095          changes allow disciplines to be shared by variables
2096          and should make it possible to add new disciplines
2097          without recompilation.
209895-04-31  The name-value library interface has undergone significant
2099          change for this revision.  See the new nval.3 man page.
2100
210194-12-31  --- Release ksh93b  ---
210294-12-31  Variables inside functions are now statically scoped.
2103          The previous behavior was never documented.
210494-12-31  If IFS contains two consecutive identical characters belonging
2105	  to the [:space:] class, then this character is treated as
2106	  a non-space delimiter so that each instance will delimit
2107	  a field.  For example, IFS=$'\t\t' will cause two consecutive
2108	  tabs to delimit a null field.
210994-12-31  The getopts command has a -a name option that specifies a
2110	  name that will be used for usage messages.
211194-12-31  A bug which caused unset RANDOM to dump core has been
2112	  fixed.
211394-12-31  A bug which prevented return for terminating a profile
2114	  or ENV file has been fixed.
211594-12-31  A bug which prevented standard input from being
2116	  directed to /dev/null for background jobs when
2117	  monitor mode was turned off has been fixed.
211894-12-31  Statements of the form typeset -options var[expr]=value
2119	  did not perform substitutions on expr as expected.
212094-12-31  A bug which prevented the shell from sending a HUP
2121	  signal to some background jobs that were not disowned
2122	  has been fixed.
212394-12-31  A bug which allowed a script to trap signals that are
2124	  ignored at the time that the shell was invoked by exec
2125	  has been fixed.
212694-12-31  A bug which could cause a core dump when a discipline
2127	  function was unset within a discipline was fixed.
212894-12-31  The typeset builtin now accepts a first argument of
2129	  + or - for compatibility with ksh88.
213094-12-31  For compatibility with ksh88, the results of expansions
2131	  of command arguments will treat the extended character
2132	  match characters ()|& as ordinary characters.
213394-12-31  A bug which caused read to fail on a file that was
2134	  open for read/write with <> when the first operation
2135	  was print or printf has been fixed.
213694-12-31  When a job is suspended, it is put on the top of
2137	  the job list as required by the POSIX standard.
213894-12-31  The value of OPTARG when an option that required
2139	  an argument but didn't have one was incorrect in the
2140	  case the the option string began with a :.
214194-12-31  A bug which caused the terminal to get into a bad
2142	  state with some KEYBD traps in vi-mode has been fixed.
214394-12-31  A bug which caused an invalid trap to cause a script
2144	  to terminate, rather than just return an error, has
2145	  been fixed.
214694-12-31  Backreferencing sub-expressions in patterns and replacement
2147	  strings now works.
214894-12-31  A bug in chmod which caused the -R option to fail has
2149	  been fixed.
215094-12-31  More signal names have been added for Solaris
2151
215294-06-30  --- Release ksh93a  ---
215394-06-30  An expansion bug which causes portions of a word after
2154	  a $((...)) expansion that contains a nested $var expansion
2155	  to be lost has been fixed.
215694-06-30  A bug that caused a core dump when a script that did not
2157	  have PWD set and did a cd inside command substitution
2158	  has been fixed.
215994-06-30  A bug which caused a core dump on some machines when
2160	  the LANG variable was assigned to has been fixed.
216194-06-30  A bug which incorrectly handled set disciplines that
2162	  performed arithmetic evaluation when the discipline
2163	  was called from the arithmetic evaluator has been fixed.
216494-06-30  A bug caused by an EXIT trap inside a function that
2165	  was executed in a subshell was fixed.
216694-06-30  If foo is a function, and not a program, then command foo
2167	  now reports that foo isn't found rather than invoking foo.
216894-06-30  The previous version incorrectly listed -A as an
2169	  invocation option.  The -A option is only for set.
217094-06-30  A bug was fixed which caused ksh to loop when execution trace
2171	  was enabled and the PS4 prompt required command substitution.
217294-06-30  A bug which could cause the job control switch character
2173	  to be disabled when a script that enabled monitor mode
2174	  terminated was fixed.
217594-06-30  A bug in the macro expansion global replacement operator //,
2176	  when the pattern began with a [ or +( has been fixed.
217794-06-30  A bug which prevented ~ expansion from occurring when
2178	  it was terminated with a colon inside an assignment
2179	  has been fixed.
218094-06-30  A bug in the dot command which prevented autoload functions
2181	  from working has been fixed.
218294-06-30  A bug which caused a variable to be unset if the
2183	  its value were expanded inside a set discipline has
2184	  been fixed.
218594-06-30  Whence -a now longer reports that a defined function
2186	  is undefined.
218794-06-30  A bug on some systems in which $0 would be incorrect
2188	  in scripts invoked by name has been fixed.
218994-06-30  Here documents with an empty body now work.
219094-06-30  A bug which disabled argument passing and resetting
2191	  of options for a script invoked by name inside a
2192	  function has been fixed.
219394-06-30  A bug in which an EXIT trap set the caller of a function
2194	  would be executed if a command called inside a function
2195	  was not found has been fixed.
219694-06-30  A bug which allowed a script to trap signals that are
2197	  ignored at the time that the shell was invoked has
2198	  been fixed.
219994-06-30  A bug which caused 2<&1- when applied to a shell built-in
2200	  to leave standard input closed has been fixed.
220194-06-30  A bug which caused the shell to incorrectly parse
2202	  $() command substitutions with nested case statements
2203	  has been fixed.
2204
2205