1 Release notes for FreeBSD 13.0.
3 This file describes new user-visible features, changes and updates relevant to
4 users of binary FreeBSD releases. Each entry should describe the change in no
5 more than several sentences and should reference manual pages where an
6 interested user can find more information. Entries should wrap after 80
7 columns. Each entry should begin with one or more commit IDs on one line,
8 specified as a comma separated list and/or range, followed by a colon and a
9 newline. Entries should be separated by a newline.
11 Changes to this file should not be MFCed.
14 Change handling of the lowest address on an IPv4 (sub)net so that
15 packets are not sent as a broadcast unless this has been set as the
16 broadcast address. This makes the lowest address usable for a host.
17 The old behavior can be restored with the net.inet.ip.broadcast_lowest
18 sysctl. For more information, see
19 https://datatracker.ietf.org/doc/draft-schoen-intarea-lowest-address/.
21 33ff39796ffe,8719e8a951b7:
22 A new rc(8) service script zfskeys allows for automatic decryption
23 of ZFS datasets encrypted with ZFS native encryption during boot.
24 See the rc.conf(5) manual page for more information.
26 b7a2cf0d9102 - eae02d959363:
27 Upgrade bhyve's emulation to version 1.4 of the NVMe specification
29 0a6760a1de32, 3f3676a71266, 580c04df4db6:
33 Add support for the HiFive Unmatched RISC-V board.
36 Add a sysctl called vfs.nfsd.srvmaxio that can be used to
37 increase the NFS server's maximum I/O size from 128Kbytes
38 to any power of 2 up to 1Mbyte. It can only be set when
39 the nfsd threads are not running and will normally require
40 an increase in kern.ipc.maxsockbuf to at least the value
41 recommended by the console log message generated when
42 setting vfs.nfsd.srvmaxio is first attempted.
45 Add a new NFSv4.1/4.2 mount option "nconnect" that can
46 be used to specify the number of TCP connections that
47 will be used for the mount, up to a maximum of 16.
48 The first (default) TCP connection will be used for
49 all RPCs that consist of small RPC messages.
50 The RPCs that can consist of large RPC messages
51 (Read/Readdir/ReaddirPlus/Write) will be sent on the
52 additional TCP connections in a round robin fashion.
53 If either the NFS client or NFS server have multiple
54 network interfaces aggregated together or a network
55 interface that uses multiple queues, this can increase
56 NFS performance for the mount.
59 One True Awk has been updated to the latest from upstream
60 (20210215). All the FreeBSD patches, but one, have now been
61 either up streamed or discarded. Notable changes include:
62 o Locale is no longer used for ranges
64 o Better compatibility with gawk and mawk
66 The one FreeBSD change, likely to be removed in FreeBSD 14, is that
67 we still allow hex numbers, prefixed with 0x, to be parsed and
68 interpreted as hex numbers while all other awks (including one
69 true awk now) interpret them as 0 in line with awk's historic
73 Change the default minor version used for an NFSv4 mount
74 to the highest minor version supported by the NFSv4 server.
75 This default can be overridden by using the "minorversion"
78 2c76eebca71b, 59f6f5e23c1a:
79 Add two daemons rpc.tlsclntd(8) and rpc.tlsservd(8) that provide
80 support for NFS-over-TLS as described in the Internet Draft titled
81 "Towards Remote Procedure Call Encryption By Default".
82 These daemons are only built when WITH_OPENSSL_KTLS is specified
83 and are only tested on amd64 at this time.
84 They use KTLS to encrypt/decrypt all NFS RPC message traffic, plus
85 optional verification of machine identity via X.509 certificates.
88 Add AES-GCM support to armv8crypto(4) providing accelerated
89 support for KTLS, IPsec, and other crypto API consumers.
92 The aesni(4) and armv8crypto(4) devices are now included in
93 GENERIC on amd64, i386, and arm64.
96 Add support for enforcing W^X mapping policy for user
97 processes. The policy is not enforced by default but can be
98 enabled by setting the kern.elf32.allow_wx and
99 kern.elf64.allow_wx sysctls to 0. Individual binaries can be
100 exempted from the policy by elfctl(1) via the wxneeded
104 Add AES-XTS support to armv8crypto(4) providing accelerated
105 software support for the default GELI cipher on arm64 systems.
108 Add aio_writev(2) and aio_readv(2), vectored analogues of aio_write(2)
112 The fusefs(5) protocol has been updated to 7.28. Support for
113 FUSE_COPY_FILE_RANGE and FUSE_LSEEK is added.
116 GDB 6.1.1 was removed. Users of crashinfo(8) should install the
117 gdb package or devel/gdb port.
120 The hme(4) driver was removed.
123 Fixes the case where gssd will not startup because /usr is a separate
124 local file system that is not yet mounted. It does not fix the case
125 where /usr is a separately mounted remote file system (such as NFS).
126 This latter case can be fixed by adding mountcritremote to the
127 REQUIRED line. Unfortunately doing so implies that all Kerberized
128 NFS mounts in /etc/fstab will need the "late" mount option.
129 This was not done, since the requirement for "late" would introduce
133 This commit added a new startup scripts variable called
134 nfsv4_server_only which uses the -R option on mountd added by r367026.
135 When nfsv4_server_only is set to "YES" in /etc/rc.conf, the NFS server
136 only handles NFSv4 and does not register with rpcbind. As such, rpcbind
137 does not need to be running. Useful for sites which consider rpcbind a
141 Kernel option ACPI_DMAR was renamed to IOMMU. amd64's IOMMU subsystem
142 was split out from amd64 DMAR support and is now generic, i.e., it can
143 be used by all architectures.
146 A series of commits ending with r364896 added NFS over TLS
147 to the kernel. This is believed to be compatible with
148 the Internet Draft titled "Towards Remote Procedure Call Encryption
149 By Default" (expected to soon become an RFC).
150 The mount_nfs(8) and exports(5) man pages describe the mount and
151 export option(s) related to NFS over TLS.
152 For NFS over TLS to work, the rpctlscd(8) { client } or rpctlssd(8)
153 { server } must be running on a kernel built with "options KERN_TLS"
154 on an architecture where PMAP_HAS_DMAP != 0.
157 Changes to one obscure devd event generated on resume need to
158 be documented. The old form will still be generated in 13, but not
162 Applications using regex(3), e.g. sed/grep, will no longer accept
163 redundant escapes for most ordinary characters.
166 SCTP support has been removed from GENERIC kernel configurations.
167 The SCTP stack is now built as sctp.ko and can be dynamically loaded.
170 Merge sendmail 8.16.1: See contrib/sendmail/RELEASE_NOTES for details.
173 The safexcel(4) crypto offload driver has been added.
176 nc(1) now implements SCTP mode, enabled by specifying the --sctp option.
179 A new implementation of bc and dc has been imported. It offers
180 better standards compliance, performance, localization and comes
181 with extensive test cases that are optionally installed.
182 Use WITHOUT_GH_BC=yes to build and install the world with the
183 previous version instead of the new one, if required.
186 struct export_args has changed so that the "user" specified for
187 the -maproot and -mapall exports(5) options may be in more than
191 sed(1) has learned about hex escapes (e.g. \x27) and will now do the
192 right thing with them, removing the need for printf magic or obnoxious
193 escaping in many scenarios.
195 r361238, r361798, r361799:
196 ZFS will now unconditionally reject read(2) of a directory with EISDIR.
197 Additionally, read(2) of a directory is now rejected with EISDIR by
198 default and may be re-enabled for non-ZFS filesystems that allow it with
199 the sysctl(8) MIB 'security.bsd.allow_read_dir'.
201 Aliases for grep to default to '-d skip' may be desired if commonly
202 non-recursively grepping a list that includes directories and the
203 possibility of EISDIR errors in stderr is not tolerable. Example
204 aliases, commented out, have been installed in /root/.cshrc and
208 Add exec.prepare and exec.release hooks for jail(8) and jail.conf(5).
209 exec.prepare runs before mounts, so can be used to populate new jails.
210 exec.release runs after unmounts, so can be used to remove ephemeral
213 r360920,r360923,r360924,r360927,r360928,r360931,r360933,r360936:
214 Remove support for ARC4, Blowfish, Cast, DES, Triple DES, MD5,
215 MD5-KPDK, MD5-HMAC, SHA1-KPDK, and Skipjack algorithms from
216 the kernel open cryptographic framework (OCF).
219 Remove support for ARC4, Blowfish, Cast, DES, Triple DES,
220 MD5-HMAC, and Skipjack algorithms from /dev/crypto.
223 Remove support for DES, Triple DES, Blowfish, Cast, and
224 Camellia ciphers from IPsec(4). Remove support for MD5-HMAC,
225 Keyed MD5, Keyed SHA1, and RIPEMD160-HMAC from IPsec(4).
228 Remove support for Triple DES, Blowfish, and MD5 HMAC from
232 Remove support for DES, Triple DES, and RC4 from in-kernel GSS
239 init(8), service(8), and cron(8) will now adopt user/class environment
240 variables (excluding PATH, by default, which will be overwritten) by
241 default. Notably, environment variables for all cron jobs and rc
242 services can now be set via login.conf(5).
245 sparc64 has been removed from FreeBSD.
248 Adds support for NFSv4.2 (RFC-7862) and Extended Attributes
249 (RFC-8276) to the NFS client and server.
250 NFSv4.2 is comprised of several optional features that can be supported
251 in addition to NFSv4.1. This patch adds the following optional features:
252 - posix_fadvise(POSIX_FADV_WILLNEED/POSIX_FADV_DONTNEED)
254 - intra server file range copying via the copy_file_range(2) syscall
255 --> Avoiding data tranfer over the wire to/from the NFS client.
256 - lseek(SEEK_DATA/SEEK_HOLE)
257 - Extended attribute syscalls for "user" namespace attributes as defined
260 For the client, NFSv4.2 is only used if the mount command line option
261 minorversion=2 is specified.
262 For the server, two new sysctls called vfs.nfsd.server_min_minorversion4
263 and vfs.nfsd.server_max_minorversion4 have been added that allow
264 sysadmins to limit the minor versions of NFSv4 supported by the nfsd
266 Setting vfs.nfsd.server_max_minorversion4 to 0 or 1 will disable NFSv4.2
270 armv5 support has been removed from FreeBSD.
273 iwm(4) now supports most Intel 9260, 9460 and 9560 Wi-Fi devices.
276 sqlite3 is updated to sqlite3-3.30.1.
279 cron(8) now supports the -n (suppress mail on succesful run) and -q
280 (suppress logging of command execution) options in the crontab format.
281 See the crontab(5) manpage for details.
284 ntpd is no longer by default locked in memory. rlimit memlock 32
285 or rlimit memlock 0 can be used to restore this behaviour.
288 rc.subr(8) now honors ${name}_env in all rc(8) scripts. Previously,
289 environment variables set by a user via ${name}_env were ignored
290 if the service defined a custom *_cmd variable to control the behavior
291 of the run_rc_command function, e.g., start_cmd, instead of relying on
292 the variables like command and command_args,
294 r351770,r352920,r352922,r352923:
295 dd(1) now supports conv=fsync, conv=fdatasync, oflag=fsync, oflag=sync,
296 and iflag=fullblock flags, compatible with illumos and GNU.
299 Add kernel-side support for in-kernel Transport Layer Security
300 (KTLS). KTLS permits using sendfile(2) over sockets using
304 WPA is updated from 2.8 to 2.9.
307 Add probes for lockmgr(9) to the lockstat DTrace provider, add
308 corresponding lockstat(1) events, and document the new probes in
312 Intel RST is a new 'feature' that remaps NVMe devices from
313 their normal location to part of the AHCI bar space. This
314 will eliminate the need to set the BIOS SATA setting from RST
315 to AHCI causing the nvme drive to be erased before FreeBSD
316 will see the nvme drive. FreeBSD will now be able to see the
317 nvme drive now in the default config.
320 Add a vop_stdioctl() call, so that file systems that do not support
321 holes will have a trivial implementation of lseek(SEEK_DATA/SEEK_HOLE).
322 The algorithm appears to be compatible with the POSIX draft and
323 the implementation in Linux for the case of a file system that
324 does not support holes. Prior to this patch, lseek(2) would reply
325 -1 with errno set to ENOTTY for SEEK_DATA/SEEK_HOLE on files in
326 file systems that do not support holes.
327 r351372 maps ENOTTY to EINVAL for lseek(SEEK_DATA/SEEK_HOLE) for
328 any other cases, such as a ENOTTY return from vn_bmap_seekhole().
331 The fuse driver has been renamed to fusefs(5) and been substantially
332 rewritten. The new driver includes many bug fixes and performance
333 enhancements, as well as the following user-visible features:
334 * Optional kernel-side permissions checks (-o default_permissions)
335 * mknod(2), socket(2), and pipe(2) support
336 * server side locking with fcntl(2)
337 * FUSE operations are now interruptible when mounted with -o intr
338 * server side handling of UTIME_NOW during utimensat(2)
339 * mount options may be updated with "mount -u"
340 * fusefs file system may now be exported over NFS
341 * RLIMIT_FSIZE support
342 * support for fuse file systems using protocols as old as 7.4
344 FUSE file system developers should also take note of the following new
346 * The protocol level has been raised from 7.8 to 7.23
347 * kqueue support on /dev/fuse
348 * server-initiated cache invalidation via FUSE_NOTIFY_REPLY
351 gnop(8) can now configure a delay to be applied to read and write
352 request delays. See the -d, -q and -x parameters.
355 Adds a Linux compatible copy_file_range(2) syscall.
358 libcap_random(3) has been removed. Applications can use native
359 APIs to get random data in capability mode.
362 Add support for using unmapped mbufs with sendfile(2).
365 nand(4) and related components have been removed.
368 The UEFI loader now supports HTTP boot.
371 bhyve(8) now implements a High Definition Audio (HDA) driver, allowing
372 guests to play to and record audio data from the host.
375 swapon(8) can now erase a swap device immediately before enabling it,
376 similar to newfs(8)'s -E option. This behaviour can be specified by
377 adding -E to swapon(8)'s command-line parameters, or by adding the
378 "trimonce" option to a swap device's /etc/fstab entry.
381 The following network drivers have been removed: bm(4), cs(4), de(4),
382 ed(4), ep(4), ex(4), fe(4), pcn(4), sf(4), sn(4), tl(4), tx(4), txp(4),
386 Wired page accounting has been split into kernel wirings and user
387 wirings (e.g., by mlock(2)). Kernel wirings no long count towards
388 the global limit, which is renamed to vm.max_user_wired. bhyve -S
389 allocates user-wired memory and is now subject to that limit.