xref: /freebsd/RELNOTES (revision 50696a6e8cbfdbf4a0d00f2f85f1951aa0d8e23d)
1Release notes for FreeBSD 13.0.
2
3This file describes new user-visible features, changes and updates relevant to
4users of binary FreeBSD releases.  Each entry should describe the change in no
5more than several sentences and should reference manual pages where an
6interested user can find more information.  Entries should wrap after 80
7columns.  Each entry should begin with one or more commit IDs on one line,
8specified as a comma separated list and/or range, followed by a colon and a
9newline.  Entries should be separated by a newline.
10
11Changes to this file should not be MFCed.
12
13r367660:
14	Fixes the case where gssd will not startup because /usr is a separate
15	local file system that is not yet mounted.  It does not fix the case
16	where /usr is a separately mounted remote file system (such as NFS).
17	This latter case can be fixed by adding mountcritremote to the
18	REQUIRED line.  Unfortunately doing so implies that all Kerberized
19	NFS mounts in /etc/fstab will need the "late" mount option.
20	This was not done, since the requirement for "late" would introduce
21	a POLA violation.
22
23r367423:
24	This commit added a new startup scripts variable called
25	nfsv4_server_only which uses the -R option on mountd added by r367026.
26	When nfsv4_server_only is set to "YES" in /etc/rc.conf, the NFS server
27	only handles NFSv4 and does not register with rpcbind.  As such, rpcbind
28	does not need to be running.  Useful for sites which consider rpcbind a
29	security issue.
30
31r366267:
32        Kernel option ACPI_DMAR was renamed to IOMMU.  amd64's IOMMU subsystem
33        was split out from amd64 DMAR support and is now generic, i.e., it can
34        be used by all architectures.
35
36r364896:
37	A series of commits ending with r364896 added NFS over TLS
38	to the kernel.  This is believed to be compatible with
39	the Internet Draft titled "Towards Remote Procedure Call Encryption
40	By Default" (expected to soon become an RFC).
41	The mount_nfs(8) and exports(5) man pages describe the mount and
42	export option(s) related to NFS over TLS.
43	For NFS over TLS to work, the rpctlscd(8) { client } or rpctlssd(8)
44	{ server } must be running on a kernel built with "options KERN_TLS"
45	on an architecture where PMAP_HAS_DMAP != 0.
46
47r364725:
48	Changes to one obscure devd event generated on resume need to
49	be documented. The old form will still be generated in 13, but not
50	in 14.
51
52r363679:
53	Applications using regex(3), e.g. sed/grep, will no longer accept
54	redundant escapes for most ordinary characters.
55
56r363253:
57	SCTP support has been removed from GENERIC kernel configurations.
58	The SCTP stack is now built as sctp.ko and can be dynamically loaded.
59
60r363233:
61	Merge sendmail 8.16.1: See contrib/sendmail/RELEASE_NOTES for details.
62
63r363180:
64	The safexcel(4) crypto offload driver has been added.
65
66r363084:
67	nc(1) now implements SCTP mode, enabled by specifying the --sctp option.
68
69r362681:
70	A new implementation of bc and dc has been imported. It offers
71	better standards compliance, performance, localization and comes
72	with extensive test cases that are optionally installed.
73	Use WITHOUT_GH_BC=yes to build and install the world with the
74	previous version instead of the new one, if required.
75
76r362158, r362163:
77	struct export_args has changed so that the "user" specified for
78	the -maproot and -mapall exports(5) options may be in more than
79	16 groups.
80
81r361884:
82	sed(1) has learned about hex escapes (e.g. \x27) and will now do the
83	right thing with them, removing the need for printf magic or obnoxious
84	escaping in many scenarios.
85
86r361238, r361798, r361799:
87	ZFS will now unconditionally reject read(2) of a directory with EISDIR.
88	Additionally, read(2) of a directory is now rejected with EISDIR by
89	default and may be re-enabled for non-ZFS filesystems that allow it with
90	the sysctl(8) MIB 'security.bsd.allow_read_dir'.
91
92	Aliases for grep to default to '-d skip' may be desired if commonly
93	non-recursively grepping a list that includes directories and the
94	possibility of EISDIR errors in stderr is not tolerable.  Example
95	aliases, commented out, have been installed in /root/.cshrc and
96	/root/.shrc.
97
98r361066:
99	Add exec.prepare and exec.release hooks for jail(8) and jail.conf(5).
100	exec.prepare runs before mounts, so can be used to populate new jails.
101	exec.release runs after unmounts, so can be used to remove ephemeral
102	jails.
103
104r360920,r360923,r360924,r360927,r360928,r360931,r360933,r360936:
105	Remove support for ARC4, Blowfish, Cast, DES, Triple DES, MD5,
106	MD5-KPDK, MD5-HMAC, SHA1-KPDK, and Skipjack algorithms from
107	the kernel open cryptographic framework (OCF).
108
109r360562:
110	Remove support for ARC4, Blowfish, Cast, DES, Triple DES,
111	MD5-HMAC, and Skipjack algorithms from /dev/crypto.
112
113r360557:
114	Remove support for DES, Triple DES, Blowfish, Cast, and
115	Camellia ciphers from IPsec(4).  Remove support for MD5-HMAC,
116	Keyed MD5, Keyed SHA1, and RIPEMD160-HMAC from IPsec(4).
117
118r359945:
119	Remove support for Triple DES, Blowfish, and MD5 HMAC from
120	geli(4).
121
122r359786-r359787:
123	Remove support for DES, Triple DES, and RC4 from in-kernel GSS
124	authentication.
125
126r357627:
127	remove elf2aout.
128
129r357560-r357565:
130	init(8), service(8), and cron(8) will now adopt user/class environment
131	variables (excluding PATH, by default, which will be overwritten) by
132	default.  Notably, environment variables for all cron jobs and rc
133	services can now be set via login.conf(5).
134
135r357455:
136	sparc64 has been removed from FreeBSD.
137
138r355677:
139	Adds support for NFSv4.2 (RFC-7862) and Extended Attributes
140	(RFC-8276) to the NFS client and server.
141	NFSv4.2 is comprised of several optional features that can be supported
142	in addition to NFSv4.1. This patch adds the following optional features:
143	- posix_fadvise(POSIX_FADV_WILLNEED/POSIX_FADV_DONTNEED)
144	- posix_fallocate()
145	- intra server file range copying via the copy_file_range(2) syscall
146	--> Avoiding data tranfer over the wire to/from the NFS client.
147	- lseek(SEEK_DATA/SEEK_HOLE)
148	- Extended attribute syscalls for "user" namespace attributes as defined
149	  by RFC-8276.
150
151	For the client, NFSv4.2 is only used if the mount command line option
152	minorversion=2 is specified.
153	For the server, two new sysctls called vfs.nfsd.server_min_minorversion4
154 	and vfs.nfsd.server_max_minorversion4 have been added that allow
155	sysadmins to limit the minor versions of NFSv4 supported by the nfsd
156	server.
157	Setting vfs.nfsd.server_max_minorversion4 to 0 or 1 will disable NFSv4.2
158	on the server.
159
160r356263:
161	armv5 support has been removed from FreeBSD.
162
163r354517:
164	iwm(4) now supports most Intel 9260, 9460 and 9560 Wi-Fi devices.
165
166r354269:
167	sqlite3 is updated to sqlite3-3.30.1.
168
169r352668:
170	cron(8) now supports the -n (suppress mail on succesful run) and -q
171	(suppress logging of command execution) options in the crontab format.
172	See the crontab(5) manpage for details.
173
174r352304:
175	ntpd is no longer by default locked in memory. rlimit memlock 32
176	or rlimit memlock 0 can be used to restore this behaviour.
177
178r351863:
179	rc.subr(8) now honors ${name}_env in all rc(8) scripts.  Previously,
180	environment variables set by a user via ${name}_env were ignored
181	if the service defined a custom *_cmd variable to control the behavior
182	of the run_rc_command function, e.g., start_cmd, instead of relying on
183	the variables like command and command_args,
184
185r351770,r352920,r352922,r352923:
186	dd(1) now supports conv=fsync, conv=fdatasync, oflag=fsync, oflag=sync,
187	and iflag=fullblock flags, compatible with illumos and GNU.
188
189r351522:
190	Add kernel-side support for in-kernel Transport Layer Security
191	(KTLS).  KTLS permits using sendfile(2) over sockets using
192	TLS.
193
194r351397:
195	WPA is updated from 2.8 to 2.9.
196
197r351361:
198	Add probes for lockmgr(9) to the lockstat DTrace provider, add
199	corresponding lockstat(1) events, and document the new probes in
200	dtrace_lockstat.4.
201
202r351356:
203	Intel RST is a new 'feature' that remaps NVMe devices from
204	their normal location to part of the AHCI bar space.  This
205	will eliminate the need to set the BIOS SATA setting from RST
206	to AHCI causing the nvme drive to be erased before FreeBSD
207	will see the nvme drive. FreeBSD will now be able to see the
208	nvme drive now in the default config.
209
210r351201, r351372:
211	Add a vop_stdioctl() call, so that file systems that do not support
212	holes will have a trivial implementation of lseek(SEEK_DATA/SEEK_HOLE).
213	The algorithm appears to be compatible with the POSIX draft and
214	the implementation in Linux for the case of a file system that
215	does not support holes.  Prior to this patch, lseek(2) would reply
216	-1 with errno set to ENOTTY for SEEK_DATA/SEEK_HOLE on files in
217	file systems that do not support holes.
218	r351372 maps ENOTTY to EINVAL for lseek(SEEK_DATA/SEEK_HOLE) for
219	any other cases, such as a ENOTTY return from vn_bmap_seekhole().
220
221r350665:
222	The fuse driver has been renamed to fusefs(5) and been substantially
223	rewritten.  The new driver includes many bug fixes and performance
224	enhancements, as well as the following user-visible features:
225	* Optional kernel-side permissions checks (-o default_permissions)
226	* mknod(2), socket(2), and pipe(2) support
227	* server side locking with fcntl(2)
228	* FUSE operations are now interruptible when mounted with -o intr
229	* server side handling of UTIME_NOW during utimensat(2)
230	* mount options may be updated with "mount -u"
231	* fusefs file system may now be exported over NFS
232	* RLIMIT_FSIZE support
233	* support for fuse file systems using protocols as old as 7.4
234
235	FUSE file system developers should also take note of the following new
236	features:
237	* The protocol level has been raised from 7.8 to 7.23
238	* kqueue support on /dev/fuse
239	* server-initiated cache invalidation via FUSE_NOTIFY_REPLY
240
241r350471:
242	gnop(8) can now configure a delay to be applied to read and write
243	request delays.  See the -d, -q and -x parameters.
244
245r350315, r350316:
246	Adds a Linux compatible copy_file_range(2) syscall.
247
248r350307:
249	libcap_random(3) has been removed.  Applications can use native
250	APIs to get random data in capability mode.
251
252r349529,r349530:
253	Add support for using unmapped mbufs with sendfile(2).
254
255r349352:
256	nand(4) and related components have been removed.
257
258r349349:
259	The UEFI loader now supports HTTP boot.
260
261r349335:
262	bhyve(8) now implements a High Definition Audio (HDA) driver, allowing
263	guests to play to and record audio data from the host.
264
265r349286:
266	swapon(8) can now erase a swap device immediately before enabling it,
267	similar to newfs(8)'s -E option.  This behaviour can be specified by
268	adding -E to swapon(8)'s command-line parameters, or by adding the
269	"trimonce" option to a swap device's /etc/fstab entry.
270
271r347908-r347923:
272	The following network drivers have been removed: bm(4), cs(4), de(4),
273	ed(4), ep(4), ex(4), fe(4), pcn(4), sf(4), sn(4), tl(4), tx(4), txp(4),
274	vx(4), wb(4), xe(4).
275
276r347532:
277	Wired page accounting has been split into kernel wirings and user
278	wirings (e.g., by mlock(2)).  Kernel wirings no long count towards
279	the global limit, which is renamed to vm.max_user_wired.  bhyve -S
280	allocates user-wired memory and is now subject to that limit.
281
282$FreeBSD$
283