xref: /freebsd/RELNOTES (revision ee7231c92936b17c592ad9d4dd92a560ff320191)
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
13074a91f746bd:
14	The aesni(4) and armv8crypto(4) devices are now included in
15	GENERIC on amd64, i386, and arm64.
16
172e1c94aa1fd5:
18	Add support for enforcing W^X mapping policy for user
19	processes.  The policy is not enforced by default but can be
20	enabled by setting the kern.elf32.allow_wx and
21	kern.elf64_allow_wx sysctls to 1.  Individual binaries can be
22	exempted from the policy by elfctl(1) via the wxneeded
23	feature.
24
254979620ece98:
26	Add AES-XTS support to armv8crypto(4) providing accelerated
27	software support for the default GELI cipher on arm64 systems.
28
29r368667:
30	GDB 6.1.1 was removed.  Users of crashinfo(8) should install the
31	gdb package or devel/gdb port.
32
33r368559:
34	The hme(4) driver was removed.
35
36r367660:
37	Fixes the case where gssd will not startup because /usr is a separate
38	local file system that is not yet mounted.  It does not fix the case
39	where /usr is a separately mounted remote file system (such as NFS).
40	This latter case can be fixed by adding mountcritremote to the
41	REQUIRED line.  Unfortunately doing so implies that all Kerberized
42	NFS mounts in /etc/fstab will need the "late" mount option.
43	This was not done, since the requirement for "late" would introduce
44	a POLA violation.
45
46r367423:
47	This commit added a new startup scripts variable called
48	nfsv4_server_only which uses the -R option on mountd added by r367026.
49	When nfsv4_server_only is set to "YES" in /etc/rc.conf, the NFS server
50	only handles NFSv4 and does not register with rpcbind.  As such, rpcbind
51	does not need to be running.  Useful for sites which consider rpcbind a
52	security issue.
53
54r366267:
55        Kernel option ACPI_DMAR was renamed to IOMMU.  amd64's IOMMU subsystem
56        was split out from amd64 DMAR support and is now generic, i.e., it can
57        be used by all architectures.
58
59r364896:
60	A series of commits ending with r364896 added NFS over TLS
61	to the kernel.  This is believed to be compatible with
62	the Internet Draft titled "Towards Remote Procedure Call Encryption
63	By Default" (expected to soon become an RFC).
64	The mount_nfs(8) and exports(5) man pages describe the mount and
65	export option(s) related to NFS over TLS.
66	For NFS over TLS to work, the rpctlscd(8) { client } or rpctlssd(8)
67	{ server } must be running on a kernel built with "options KERN_TLS"
68	on an architecture where PMAP_HAS_DMAP != 0.
69
70r364725:
71	Changes to one obscure devd event generated on resume need to
72	be documented. The old form will still be generated in 13, but not
73	in 14.
74
75r363679:
76	Applications using regex(3), e.g. sed/grep, will no longer accept
77	redundant escapes for most ordinary characters.
78
79r363253:
80	SCTP support has been removed from GENERIC kernel configurations.
81	The SCTP stack is now built as sctp.ko and can be dynamically loaded.
82
83r363233:
84	Merge sendmail 8.16.1: See contrib/sendmail/RELEASE_NOTES for details.
85
86r363180:
87	The safexcel(4) crypto offload driver has been added.
88
89r363084:
90	nc(1) now implements SCTP mode, enabled by specifying the --sctp option.
91
92r362681:
93	A new implementation of bc and dc has been imported. It offers
94	better standards compliance, performance, localization and comes
95	with extensive test cases that are optionally installed.
96	Use WITHOUT_GH_BC=yes to build and install the world with the
97	previous version instead of the new one, if required.
98
99r362158, r362163:
100	struct export_args has changed so that the "user" specified for
101	the -maproot and -mapall exports(5) options may be in more than
102	16 groups.
103
104r361884:
105	sed(1) has learned about hex escapes (e.g. \x27) and will now do the
106	right thing with them, removing the need for printf magic or obnoxious
107	escaping in many scenarios.
108
109r361238, r361798, r361799:
110	ZFS will now unconditionally reject read(2) of a directory with EISDIR.
111	Additionally, read(2) of a directory is now rejected with EISDIR by
112	default and may be re-enabled for non-ZFS filesystems that allow it with
113	the sysctl(8) MIB 'security.bsd.allow_read_dir'.
114
115	Aliases for grep to default to '-d skip' may be desired if commonly
116	non-recursively grepping a list that includes directories and the
117	possibility of EISDIR errors in stderr is not tolerable.  Example
118	aliases, commented out, have been installed in /root/.cshrc and
119	/root/.shrc.
120
121r361066:
122	Add exec.prepare and exec.release hooks for jail(8) and jail.conf(5).
123	exec.prepare runs before mounts, so can be used to populate new jails.
124	exec.release runs after unmounts, so can be used to remove ephemeral
125	jails.
126
127r360920,r360923,r360924,r360927,r360928,r360931,r360933,r360936:
128	Remove support for ARC4, Blowfish, Cast, DES, Triple DES, MD5,
129	MD5-KPDK, MD5-HMAC, SHA1-KPDK, and Skipjack algorithms from
130	the kernel open cryptographic framework (OCF).
131
132r360562:
133	Remove support for ARC4, Blowfish, Cast, DES, Triple DES,
134	MD5-HMAC, and Skipjack algorithms from /dev/crypto.
135
136r360557:
137	Remove support for DES, Triple DES, Blowfish, Cast, and
138	Camellia ciphers from IPsec(4).  Remove support for MD5-HMAC,
139	Keyed MD5, Keyed SHA1, and RIPEMD160-HMAC from IPsec(4).
140
141r359945:
142	Remove support for Triple DES, Blowfish, and MD5 HMAC from
143	geli(4).
144
145r359786-r359787:
146	Remove support for DES, Triple DES, and RC4 from in-kernel GSS
147	authentication.
148
149r357627:
150	remove elf2aout.
151
152r357560-r357565:
153	init(8), service(8), and cron(8) will now adopt user/class environment
154	variables (excluding PATH, by default, which will be overwritten) by
155	default.  Notably, environment variables for all cron jobs and rc
156	services can now be set via login.conf(5).
157
158r357455:
159	sparc64 has been removed from FreeBSD.
160
161r355677:
162	Adds support for NFSv4.2 (RFC-7862) and Extended Attributes
163	(RFC-8276) to the NFS client and server.
164	NFSv4.2 is comprised of several optional features that can be supported
165	in addition to NFSv4.1. This patch adds the following optional features:
166	- posix_fadvise(POSIX_FADV_WILLNEED/POSIX_FADV_DONTNEED)
167	- posix_fallocate()
168	- intra server file range copying via the copy_file_range(2) syscall
169	--> Avoiding data tranfer over the wire to/from the NFS client.
170	- lseek(SEEK_DATA/SEEK_HOLE)
171	- Extended attribute syscalls for "user" namespace attributes as defined
172	  by RFC-8276.
173
174	For the client, NFSv4.2 is only used if the mount command line option
175	minorversion=2 is specified.
176	For the server, two new sysctls called vfs.nfsd.server_min_minorversion4
177 	and vfs.nfsd.server_max_minorversion4 have been added that allow
178	sysadmins to limit the minor versions of NFSv4 supported by the nfsd
179	server.
180	Setting vfs.nfsd.server_max_minorversion4 to 0 or 1 will disable NFSv4.2
181	on the server.
182
183r356263:
184	armv5 support has been removed from FreeBSD.
185
186r354517:
187	iwm(4) now supports most Intel 9260, 9460 and 9560 Wi-Fi devices.
188
189r354269:
190	sqlite3 is updated to sqlite3-3.30.1.
191
192r352668:
193	cron(8) now supports the -n (suppress mail on succesful run) and -q
194	(suppress logging of command execution) options in the crontab format.
195	See the crontab(5) manpage for details.
196
197r352304:
198	ntpd is no longer by default locked in memory. rlimit memlock 32
199	or rlimit memlock 0 can be used to restore this behaviour.
200
201r351863:
202	rc.subr(8) now honors ${name}_env in all rc(8) scripts.  Previously,
203	environment variables set by a user via ${name}_env were ignored
204	if the service defined a custom *_cmd variable to control the behavior
205	of the run_rc_command function, e.g., start_cmd, instead of relying on
206	the variables like command and command_args,
207
208r351770,r352920,r352922,r352923:
209	dd(1) now supports conv=fsync, conv=fdatasync, oflag=fsync, oflag=sync,
210	and iflag=fullblock flags, compatible with illumos and GNU.
211
212r351522:
213	Add kernel-side support for in-kernel Transport Layer Security
214	(KTLS).  KTLS permits using sendfile(2) over sockets using
215	TLS.
216
217r351397:
218	WPA is updated from 2.8 to 2.9.
219
220r351361:
221	Add probes for lockmgr(9) to the lockstat DTrace provider, add
222	corresponding lockstat(1) events, and document the new probes in
223	dtrace_lockstat.4.
224
225r351356:
226	Intel RST is a new 'feature' that remaps NVMe devices from
227	their normal location to part of the AHCI bar space.  This
228	will eliminate the need to set the BIOS SATA setting from RST
229	to AHCI causing the nvme drive to be erased before FreeBSD
230	will see the nvme drive. FreeBSD will now be able to see the
231	nvme drive now in the default config.
232
233r351201, r351372:
234	Add a vop_stdioctl() call, so that file systems that do not support
235	holes will have a trivial implementation of lseek(SEEK_DATA/SEEK_HOLE).
236	The algorithm appears to be compatible with the POSIX draft and
237	the implementation in Linux for the case of a file system that
238	does not support holes.  Prior to this patch, lseek(2) would reply
239	-1 with errno set to ENOTTY for SEEK_DATA/SEEK_HOLE on files in
240	file systems that do not support holes.
241	r351372 maps ENOTTY to EINVAL for lseek(SEEK_DATA/SEEK_HOLE) for
242	any other cases, such as a ENOTTY return from vn_bmap_seekhole().
243
244r350665:
245	The fuse driver has been renamed to fusefs(5) and been substantially
246	rewritten.  The new driver includes many bug fixes and performance
247	enhancements, as well as the following user-visible features:
248	* Optional kernel-side permissions checks (-o default_permissions)
249	* mknod(2), socket(2), and pipe(2) support
250	* server side locking with fcntl(2)
251	* FUSE operations are now interruptible when mounted with -o intr
252	* server side handling of UTIME_NOW during utimensat(2)
253	* mount options may be updated with "mount -u"
254	* fusefs file system may now be exported over NFS
255	* RLIMIT_FSIZE support
256	* support for fuse file systems using protocols as old as 7.4
257
258	FUSE file system developers should also take note of the following new
259	features:
260	* The protocol level has been raised from 7.8 to 7.23
261	* kqueue support on /dev/fuse
262	* server-initiated cache invalidation via FUSE_NOTIFY_REPLY
263
264r350471:
265	gnop(8) can now configure a delay to be applied to read and write
266	request delays.  See the -d, -q and -x parameters.
267
268r350315, r350316:
269	Adds a Linux compatible copy_file_range(2) syscall.
270
271r350307:
272	libcap_random(3) has been removed.  Applications can use native
273	APIs to get random data in capability mode.
274
275r349529,r349530:
276	Add support for using unmapped mbufs with sendfile(2).
277
278r349352:
279	nand(4) and related components have been removed.
280
281r349349:
282	The UEFI loader now supports HTTP boot.
283
284r349335:
285	bhyve(8) now implements a High Definition Audio (HDA) driver, allowing
286	guests to play to and record audio data from the host.
287
288r349286:
289	swapon(8) can now erase a swap device immediately before enabling it,
290	similar to newfs(8)'s -E option.  This behaviour can be specified by
291	adding -E to swapon(8)'s command-line parameters, or by adding the
292	"trimonce" option to a swap device's /etc/fstab entry.
293
294r347908-r347923:
295	The following network drivers have been removed: bm(4), cs(4), de(4),
296	ed(4), ep(4), ex(4), fe(4), pcn(4), sf(4), sn(4), tl(4), tx(4), txp(4),
297	vx(4), wb(4), xe(4).
298
299r347532:
300	Wired page accounting has been split into kernel wirings and user
301	wirings (e.g., by mlock(2)).  Kernel wirings no long count towards
302	the global limit, which is renamed to vm.max_user_wired.  bhyve -S
303	allocates user-wired memory and is now subject to that limit.
304
305$FreeBSD$
306