1 Updating Information for FreeBSD current users
3 This file is maintained and copyrighted by M. Warner Losh <imp@freebsd.org>.
4 See end of file for further details. For commonly done items, please see the
5 COMMON ITEMS: section later in the file. These instructions assume that you
6 basically know what you are doing. If not, then please consult the FreeBSD
9 http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
11 Items affecting the ports and packages system can be found in
12 /usr/ports/UPDATING. Please read that file before running portupgrade.
14 20160725 p45 FreeBSD-SA-16:25.bspatch
15 FreeBSD-EN-16:09.freebsd-update
17 Fix bspatch heap overflow vulnerability. [SA-16:25]
19 Fix freebsd-update(8) support of FreeBSD 11.0 release
20 distribution. [EN-16:09]
22 20160604 p44 FreeBSD-SA-16:24.ntp
24 Fix multiple vulnerabilities of ntp.
26 20160531 p43 FreeBSD-SA-16:20.linux
27 FreeBSD-SA-16:21.43bsd
28 FreeBSD-SA-16:22.libarchive
29 FreeBSD-SA-16:23.libarchive
31 Fix kernel stack disclosure in Linux compatibility layer. [SA-16:20]
32 Fix kernel stack disclosure in 4.3BSD compatibility layer. [SA-16:21]
33 Fix directory traversal in cpio(1). [SA-16:22]
34 Fix buffer overflow in libarchive(3). [SA-16:23]
36 20160517 p42 FreeBSD-SA-16:18.atkbd
38 Fix buffer overflow in keyboard driver. [SA-16:18]
40 20160504 p41 FreeBSD-SA-16:17.openssl
43 Fix multiple OpenSSL vulnerabilitites. [SA-16:17]
45 Fix memory leak in ZFS. [EN-16:08]
47 20160429 p40 FreeBSD-SA-16:16.ntp
49 Fix multiple vulnerabilities of ntp.
51 20160316 p39 FreeBSD-SA-16:14.openssh-xauth
52 FreeBSD-SA-16:15.sysarch
54 Fix OpenSSH xauth(1) command injection. [SA-16:14]
55 Fix incorrect argument validation in sysarch(2). [SA-16:15]
57 20160310 p38 FreeBSD-SA-16:13.bind
58 FreeBSD-SA-16:12.openssl [revised]
60 Fix multiple vulnerabilities of BIND. [SA-16:13]
62 Fix a regression with OpenSSL patch. [SA-16:12]
64 20160303 p37 FreeBSD-SA-16:12.openssl
66 Fix multiple vulnerabilities of OpenSSL.
68 20160130 p36 FreeBSD-SA-16:11.openssl
70 Fix OpenSSL SSLv2 ciphersuite downgrade vulnerability. [SA-16:11]
72 20160127 p35 FreeBSD-SA-16:08.bind
74 FreeBSD-SA-16:10.linux
76 Fix BIND remote denial of service vulnerability. [SA-16:08]
78 Fix multiple vulnerabilities of ntp. [SA-16:09]
80 Fix Linux compatibility layer issetugid(2) system call
81 vulnerability. [SA-16:10]
83 20160114 p34 FreeBSD-SA-16:07.openssh
85 Fix OpenSSH client information leak. [SA-16:07]
87 20160114 p33 FreeBSD-EN-16:02.pf
88 FreeBSD-EN-16:03.yplib
91 FreeBSD-SA-16:03.linux
92 FreeBSD-SA-16:04.linux
94 FreeBSD-SA-16:06.bsnmpd
96 Fix pf(4) generating bad TCP checksums. [EN-16:02]
97 Fix infinite loop in YP/NIS client library. [EN-16:03]
98 Fix remote denial of service in SCTP. [SA-16:01]
99 Update NTP to 4.2.8p5. [SA-16:02]
100 Fix kernel memory diclosure in Linux compatibility layer. [SA-16:03]
101 Fix kernel memory overwrite in Linux compatibility layer. [SA-16:04]
102 Fix crash in TCP MD5 signatures. [SA-16:05]
103 Fix insecure default permissions for snmpd.config. [SA-16:06]
105 20151216 p32 FreeBSD-SA-15:27.bind
106 Fix BIND remote denial of service vulnerability. [SA-15:27]
108 20151205 p31 FreeBSD-SA-15:26.openssl
110 Fix OpenSSL X509_ATTRIBUTE memory leak. [SA-15:26]
112 20151104 p30 FreeBSD-SA-15:25.ntp [revised]
113 FreeBSD-EN-15:19.kqueue
116 Fix regression of ntpq(8) utility exiting due to trap 6 in
117 9.3-RELEASE-p29. [SA-15:25]
119 Fix regression in ntpd(8) lacking support for RAWDCF reference
120 clock in 9.3-RELEASE-p29. [SA-15:25]
122 Fix kqueue write events never fired for files greater 2GB. [EN-15:19]
124 Fix applications exiting due to segmentation violation on a correct
125 memory address. [EN-15:20]
127 20151026: p29 FreeBSD-SA-15:25.ntp
129 Fix multiple NTP vulnerabilities. New NTP version is 4.2.8p4.
131 The configuration file syntax has been changed, thus mergemaster
132 run is recommended. Now the "kod" parameter requires "limited"
133 parameter. If the ntp.conf is not updated, the ntpd will run
134 successfully, but with KoD disabled.
136 20151002: p28 FreeBSD-SA-15:24.rpcbind [revised]
137 Revised patch to address a regression that prevents NIS from working.
139 20150929: p27 FreeBSD-SA-15:24.rpcbind
141 Fix rpcbind(8) remote denial of service. [SA-15:24]
143 20150916: p26 FreeBSD-EN-15:18.pkg
145 Implement pubkey support for pkg(7) bootstrap. [EN-15:18]
147 20150902: p25 FreeBSD-SA-15:23.bind
149 Fix BIND remote denial of service vulnerability. [SA-15:23]
151 20150825: p24 FreeBSD-SA-15:21.amd64
152 FreeBSD-SA-15:22.openssh
155 Fix local privilege escalation in IRET handler. [SA-15:21]
157 Fix OpenSSH multiple vulnerabilities. [SA-15:22]
159 Fix insufficient check of unsupported pkg(7) signature methods.
162 20150818: p23 FreeBSD-SA-15:20.expat
164 Fix multiple integer overflows in expat (libbsdxml) XML parser.
167 20150805: p22 FreeBSD-SA-15:19.routed
169 Fix routed remote denial of service vulnerability.
171 20150728: p21 FreeBSD-SA-15:15.tcp
172 FreeBSD-SA-15:16.openssh
173 FreeBSD-SA-15:17.bind
175 Fix resource exhaustion in TCP reassembly. [SA-15:15]
177 Fix OpenSSH multiple vulnerabilities. [SA-15:16]
179 Fix BIND remote denial of service vulnerability. [SA-15:17]
181 20150721: p20 FreeBSD-SA-15:13.tcp
183 Fix resource exhaustion due to sessions stuck in LAST_ACK state.
186 20150707: p19 FreeBSD-SA-15:11.bind
187 Fix BIND resolver remote denial of service when validating.
189 20150630: p18 FreeBSD-EN-15:08.sendmail [revised]
190 FreeBSD-EN-15:09.xlocale
192 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
194 Fix inconsistency between locale and rune locale states.
197 20150618: p17 FreeBSD-EN-15:08.sendmail
198 Improvements to sendmail TLS/DH interoperability. [EN-15:08]
200 20150612: p16 FreeBSD-SA-15:10.openssl
201 Fix multiple vulnerabilities in OpenSSL. [SA-15:10]
203 20150609: p15 FreeBSD-EN-15:06.file
205 Updated base system file(1) to 5.22 to address multiple denial
208 20150513: p14 FreeBSD-EN-15:04.freebsd-update
210 Fix bug with freebsd-update(8) that does not ensure the previous
211 upgrade was completed. [EN-15:04]
213 20150407: p13 FreeBSD-SA-15:04.igmp [revised]
215 FreeBSD-SA-15:09.ipv6
217 Improved patch for SA-15:04.igmp.
219 Fix multiple vulnerabilities of ntp. [SA-15:07]
221 Fix Denial of Service with IPv6 Router Advertisements. [SA-15:09]
224 Fix patch for SA-15:06.openssl.
226 20150319: p11 FreeBSD-SA-15:06.openssl
227 Fix multiple vulnerabilities in OpenSSL. [SA-15:06]
229 20150225: p10 FreeBSD-SA-15:04.igmp
230 FreeBSD-SA-15:05.bind
232 FreeBSD-EN-15:02.openssl
233 FreeBSD-EN-15:03.freebsd-update
235 Fix integer overflow in IGMP protocol. [SA-15:04]
237 Fix BIND remote denial of service vulnerability. [SA-15:05]
239 Fix vt(4) crash with improper ioctl parameters. [EN-15:01]
241 Updated base system OpenSSL to 0.9.8zd. [EN-15:02]
243 Fix freebsd-update libraries update ordering issue. [EN-15:03]
245 20150127: p9 FreeBSD-SA-15:02.kmem
246 FreeBSD-SA-15:03.sctp
248 Fix SCTP SCTP_SS_VALUE kernel memory corruption and disclosure
249 vulnerability. [SA-15:02]
251 Fix SCTP stream reset vulnerability. [SA-15:03]
253 20150114: p8 FreeBSD-SA-15:01.openssl
254 Fix multiple vulnerabilities in OpenSSL. [SA-15:01]
256 20141223: p7 FreeBSD-SA-14:31.ntp
257 FreeBSD-EN-14:13.freebsd-update
259 Fix multiple vulnerabilities in NTP suite. [SA-14:31]
260 Fix directory deletion issue in freebsd-update. [EN-14:13]
262 20141210: p6 FreeBSD-SA-14:28.file
263 FreeBSD-SA-14:29.bind
265 Fix multiple vulnerabilities in file(1) and libmagic(3).
268 Fix BIND remote denial of service vulnerability. [SA-14:29]
270 20141104: p5 FreeBSD-SA-14:25.setlogin
274 Fix kernel stack disclosure in setlogin(2) / getlogin(2).
277 Fix remote command execution in ftp(1). [SA-14:26]
279 Fix NFSv4 and ZFS cache consistency issue. [EN-14:12]
281 20141022: p4 FreeBSD-EN-14:10.tzdata
282 FreeBSD-EN-14:11.crypt
284 Time zone data file update. [EN-14:10]
286 Change crypt(3) default hashing algorithm back to DES. [EN-14:11]
288 20141021: p3 FreeBSD-SA-14:20.rtsold
289 FreeBSD-SA-14:21.routed
290 FreeBSD-SA-14:22.namei
291 FreeBSD-SA-14:23.openssl
293 Fix rtsold(8) remote buffer overflow vulnerability. [SA-14:20]
295 Fix routed(8) remote denial of service vulnerability. [SA-14:21]
297 Fix memory leak in sandboxed namei lookup. [SA-14:22]
299 Fix OpenSSL multiple vulnerabilities. [SA-14:23]
301 20140916: p2 FreeBSD-SA-14:19.tcp
302 Fix Denial of Service in TCP packet processing. [SA-14:19]
304 20140909: p1 FreeBSD-SA-14:18.openssl
305 Fix OpenSSL multiple vulnerabilities. [SA-14:18]
311 On i386 and amd64 systems, the onifconsole flag is now set by default
312 in /etc/ttys for ttyu0. This causes ttyu0 to be automatically enabled
313 as a login TTY if it is set in the bootloader as an active kernel
314 console. No changes in behavior should result otherwise. To revert to
315 the previous behavior, set ttyu0 to "off" in /etc/ttys.
318 Clang and llvm have been upgraded to 3.4.1 release.
321 Clang and llvm have been upgraded to 3.4 release.
324 The nve(4) driver for NVIDIA nForce MCP Ethernet adapters has
325 been deprecated and will not be part of FreeBSD 11.0 and later
326 releases. If you use this driver, please consider switching to
327 the nfe(4) driver instead.
330 The behavior of gss_pseudo_random() for the krb5 mechanism
331 has changed, for applications requesting a longer random string
332 than produced by the underlying enctype's pseudo-random() function.
333 In particular, the random string produced from a session key of
334 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
335 be different at the 17th octet and later, after this change.
336 The counter used in the PRF+ construction is now encoded as a
337 big-endian integer in accordance with RFC 4402.
338 __FreeBSD_version is bumped to 902505.
344 Behavior of devfs rules path matching has been changed.
345 Pattern is now always matched against fully qualified devfs
346 path and slash characters must be explicitly matched by
347 slashes in pattern (FNM_PATHNAME). Rulesets involving devfs
348 subdirectories must be reviewed.
351 hastctl(8)'s `status' command output changed to terse one-liner format.
352 Scripts using this should switch to `list' command or be rewritten.
355 Fix a bug that allowed a tracing process (e.g. gdb) to write
356 to a memory-mapped file in the traced process's address space
357 even if neither the traced process nor the tracing process had
358 write access to that file.
361 Added ZFS TRIM support which is enabled by default. To disable
362 ZFS TRIM support set vfs.zfs.trim.enabled=0 in loader.conf.
364 Creating new ZFS pools and adding new devices to existing pools
365 first performs a full device level TRIM which can take a significant
366 amount of time. The sysctl vfs.zfs.vdev.trim_on_init can be set to 0
367 to disable this behaviour.
369 ZFS TRIM requires the underlying device support BIO_DELETE which
370 is currently provided by methods such as ATA TRIM and SCSI UNMAP
371 via CAM, which are typically supported by SSD's.
373 Stats for ZFS TRIM can be monitored by looking at the sysctl's
374 under kstat.zfs.misc.zio_trim.
377 `list' command has been added to hastctl(8). For now, it is full
378 equivalent of `status' command.
379 WARNING: in the near future the output of hastctl's status command
380 will change to more terse format. If you use `hastctl status'
381 for parsing in your scripts, switch to `hastctl list'.
384 The mergemaster command now uses the default MAKEOBJDIRPREFIX
385 rather than creating it's own in the temporary directory in
386 order allow access to bootstrapped versions of tools such as
387 install and mtree. When upgrading from version of FreeBSD where
388 the install command does not support -l, you will need to
389 install a new mergemaster command if mergemaster -p is required.
390 This can be accomplished with the command (cd src/usr.sbin/mergemaster
393 Due to the use of the new -l option to install(1) during build
394 and install, you must take care not to directly set the INSTALL
395 make variable in your /etc/make.conf, /etc/src.conf, or on the
396 command line. If you wish to use the -C flag for all installs
397 you may be able to add INSTALL+=-C to /etc/make.conf or
401 Fix a bug that allows NFS clients to issue READDIR on files.
404 The install(1) option -M has changed meaning and now takes an
405 argument that is a file or path to append logs to. In the
406 unlikely event that -M was the last option on the command line
407 and the command line contained at least two files and a target
408 directory the first file will have logs appended to it. The -M
409 option served little practical purpose in the last decade so it's
410 used expected to be extremely rare.
413 A new compression method (lz4) has been merged to. Please refer to
414 zpool-features(7) for more information.
416 Please refer to the "ZFS notes" section of this file for information
417 on upgrading boot ZFS pools.
420 The VFS KBI was changed with the merge of several nullfs
421 optimizations and fixes. All filesystem modules must be
425 With the addition of auditdistd(8), a new auditdistd user is now
426 depended on during installworld. "mergemaster -p" can be used to add
427 the user prior to installworld, as documented in the handbook.
433 A new version of ZFS (pool version 5000) has been merged to 9-STABLE.
434 Starting with this version the old system of ZFS pool versioning
435 is superseded by "feature flags". This concept enables forward
436 compatibility against certain future changes in functionality of ZFS
437 pools. The first two read-only compatible "feature flags" for ZFS
438 pools are "com.delphix:async_destroy" and "com.delphix:empty_bpobj".
439 For more information read the new zpool-features(7) manual page.
440 Please refer to the "ZFS notes" section of this file for information
441 on upgrading boot ZFS pools.
444 The commit introducing bsd.compiler.mk breaks the traditional
445 building of kernels before this point. Add -m ${SRC}/share/mk
446 (for the right value of SRC) to your command lines to work
447 around; update your useland to a point after this; or use the
448 buildkernel/installkernel top-level targets. See also 20120829.
451 The IPFIREWALL_FORWARD kernel option has been removed. Its
452 functionality now turned on by default.
455 The random(4) support for the VIA hardware random number
456 generator (`PADLOCK') is no longer enabled unconditionally.
457 Add the PADLOCK_RNG option in the custom kernel config if
458 needed. The GENERIC kernels on i386 and amd64 do include the
459 option, so the change only affects the custom kernel
463 The amd64 kernel now uses xsetbv, xrstor instructions. To compile with
464 the traditional method, you must update your system with an installworld
465 before the kernel will build. The documented make buildkernel/installkernel
466 interfaces (coupled with fresh make kernel-toolchain) continue to work.
469 The sparc64 ZFS loader has been changed to no longer try to auto-
470 detect ZFS providers based on diskN aliases but now requires these
471 to be explicitly listed in the OFW boot-device environment variable.
474 Now unix domain sockets behave "as expected" on nullfs(5). Previously
475 nullfs(5) did not pass through all behaviours to the underlying layer,
476 as a result if we bound to a socket on the lower layer we could connect
477 only to the lower path; if we bound to the upper layer we could connect
478 only to the upper path. The new behavior is one can connect to both the
479 lower and the upper paths regardless what layer path one binds to.
482 The acpi_wmi(4) status device /dev/wmistat has been renamed to
486 A new VOP_ADVISE() was added to support posix_fadvise(2). All
487 filesystem modules must be recompiled.
490 The interface of the VOP_VPTOCNP(9) changed, now the returned
491 vnode shall be referenced, previously it was required to be
492 only held. All in-tree filesystems are converted.
498 The broken amd(4) driver has been replaced with esp(4) in the amd64,
499 i386 and pc98 GENERIC kernel configuration files.
502 This commit modifies vfs_register() so that it uses a hash
503 calculation to set vfc_typenum, which is enabled by default.
504 The first time a system is booted after this change, the
505 vfc_typenum values will change for all file systems. The
506 main effect of this is a change to the NFS server file handles
507 for file systems that use vfc_typenum in their fsid, such as ZFS.
508 It will, however, prevent vfc_typenum from changing when file
509 systems are loaded in a different order for subsequent reboots.
510 To disable this, you can set vfs.typenumhash=0 in /boot/loader.conf
511 until you are ready to remount all NFS clients after a reboot.
514 Bump the shared library version numbers for libraries that
515 do not use symbol versioning, have changed the ABI compared
516 to stable/8 and which shared library version was not bumped.
517 Done as part of 9.0-RELEASE cycle.
520 During the merge of Capsicum features, the fget(9) KPI was modified.
521 This may require the rebuilding of out-of-tree device drivers --
522 issues have been reported specifically with the nVidia device driver.
523 __FreeBSD_version is bumped to 900041.
525 Also, there is a period between 20110811 and 20110814 where the
526 special devices /dev/{stdin,stdout,stderr} did not work correctly.
527 Building world from a kernel during that window may not work.
530 The packet filter (pf) code has been updated to OpenBSD 4.5.
531 You need to update userland tools to be in sync with kernel.
532 This update breaks backward compatibility with earlier pfsync(4)
533 versions. Care must be taken when updating redundant firewall setups.
536 The following sysctls and tunables are retired on x86 platforms:
538 machdep.hlt_logical_cpus
539 The following sysctl is retired:
540 machdep.hyperthreading_allowed
541 The sysctls were supposed to provide a way to dynamically offline and
542 online selected CPUs on x86 platforms, but the implementation has not
543 been reliable especially with SCHED_ULE scheduler.
544 machdep.hyperthreading_allowed tunable is still available to ignore
545 hyperthreading CPUs at OS level.
546 Individual CPUs can be disabled using hint.lapic.X.disabled tunable,
547 where X is an APIC ID of a CPU. Be advised, though, that disabling
548 CPUs in non-uniform fashion will result in non-uniform topology and
549 may lead to sub-optimal system performance with SCHED_ULE, which is
553 cpumask_t type is retired and cpuset_t is used in order to describe
557 Changes to ifconfig(8) for dynamic address family detection mandate
558 that you are running a kernel of 20110525 or later. Make sure to
559 follow the update procedure to boot a new kernel before installing
563 Support for sun4v architecture is officially dropped
566 Several KPI breaking changes have been committed to the mii(4) layer,
567 the PHY drivers and consequently some Ethernet drivers using mii(4).
568 This means that miibus.ko and the modules of the affected Ethernet
569 drivers need to be recompiled.
571 Note to kernel developers: Given that the OUI bit reversion problem
572 was fixed as part of these changes all mii(4) commits related to OUIs,
573 i.e. to sys/dev/mii/miidevs, PHY driver probing and vendor specific
574 handling, no longer can be merged verbatim to stable/8 and previous
578 Users of the Atheros AR71xx SoC code now need to add 'device ar71xx_pci'
579 into their kernel configurations along with 'device pci'.
582 The default NFS client is now the new NFS client, so fstype "newnfs"
583 is now "nfs" and the regular/old NFS client is now fstype "oldnfs".
584 Although mounts via fstype "nfs" will usually work without userland
585 changes, it is recommended that the mount(8) and mount_nfs(8)
586 commands be rebuilt from sources and that a link to mount_nfs called
587 mount_oldnfs be created. The new client is compiled into the
588 kernel with "options NFSCL" and this is needed for diskless root
589 file systems. The GENERIC kernel configs have been changed to use
590 NFSCL and NFSD (the new server) instead of NFSCLIENT and NFSSERVER.
591 To use the regular/old client, you can "mount -t oldnfs ...". For
592 a diskless root file system, you must also include a line like:
594 vfs.root.mountfrom="oldnfs:"
596 in the boot/loader.conf on the root fs on the NFS server to make
597 a diskless root fs use the old client.
600 The GENERIC kernels for all architectures now default to the new
601 CAM-based ATA stack. It means that all legacy ATA drivers were
602 removed and replaced by respective CAM drivers. If you are using
603 ATA device names in /etc/fstab or other places, make sure to update
604 them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY,
605 where 'Y's are the sequential numbers starting from zero for each type
606 in order of detection, unless configured otherwise with tunables,
607 see cam(4)). There will be symbolic links created in /dev/ to map
608 old adX devices to the respective adaY. They should provide basic
609 compatibility for file systems mounting in most cases, but they do
610 not support old user-level APIs and do not have respective providers
611 in GEOM. Consider using updated management tools with new device names.
613 It is possible to load devices ahci, ata, siis and mvs as modules,
614 but option ATA_CAM should remain in kernel configuration to make ata
615 module work as CAM driver supporting legacy ATA controllers. Device ata
616 still can be used in modular fashion (atacore + ...). Modules atadisk
617 and atapi* are not used and won't affect operation in ATA_CAM mode.
618 Note that to use CAM-based ATA kernel should include CAM devices
619 scbus, pass, da (or explicitly ada), cd and optionally others. All of
620 them are parts of the cam module.
622 ataraid(4) functionality is now supported by the RAID GEOM class.
623 To use it you can load geom_raid kernel module and use graid(8) tool
624 for management. Instead of /dev/arX device names, use /dev/raid/rX.
626 No kernel config options or code have been removed, so if a problem
627 arises, please report it and optionally revert to the old ATA stack.
628 In order to do it you can remove from the kernel config:
633 , and instead add back:
634 device atadisk # ATA disk drives
635 device ataraid # ATA RAID drives
636 device atapicd # ATAPI CDROM drives
637 device atapifd # ATAPI floppy drives
638 device atapist # ATAPI tape drives
641 The default NFS server has been changed to the new server, which
642 was referred to as the experimental server. If you need to switch
643 back to the old NFS server, you must now put the "-o" option on
644 both the mountd and nfsd commands. This can be done using the
645 mountd_flags and nfs_server_flags rc.conf variables until an
646 update to the rc scripts is committed, which is coming soon.
649 The GNU Objective-C runtime library (libobjc), and other Objective-C
650 related components have been removed from the base system. If you
651 require an Objective-C library, please use one of the available ports.
654 ath(4) has been split into bus- and device- modules. if_ath contains
655 the HAL, the TX rate control and the network device code. if_ath_pci
656 contains the PCI bus glue. For Atheros MIPS embedded systems, if_ath_ahb
657 contains the AHB glue. Users need to load both if_ath_pci and if_ath
658 in order to use ath on everything else.
660 TO REPEAT: if_ath_ahb is not needed for normal users. Normal users only
661 need to load if_ath and if_ath_pci for ath(4) operation.
664 As part of the replacement of sysinstall, the process of building
665 release media has changed significantly. For details, please re-read
666 release(7), which has been updated to reflect the new build process.
669 GNU binutils 2.17.50 (as of 2007-07-03) has been merged to -HEAD. This
670 is the last available version under GPLv2. It brings a number of new
671 features, such as support for newer x86 CPU's (with SSE-3, SSSE-3, SSE
672 4.1 and SSE 4.2), better support for powerpc64, a number of new
673 directives, and lots of other small improvements. See the ChangeLog
674 file in contrib/binutils for the full details.
677 IPsec's HMAC_SHA256-512 support has been fixed to be RFC4868
678 compliant, and will now use half of hash for authentication.
679 This will break interoperability with all stacks (including all
680 actual FreeBSD versions) who implement
681 draft-ietf-ipsec-ciph-sha-256-00 (they use 96 bits of hash for
683 The only workaround with such peers is to use another HMAC
684 algorithm for IPsec ("phase 2") authentication.
687 Remove the uio_yield prototype and symbol. This function has
688 been misnamed since it was introduced and should not be
689 globally exposed with this name. The equivalent functionality
690 is now available using kern_yield(curthread->td_user_pri).
691 The function remains undocumented.
694 A SYSCTL_[ADD_]UQUAD was added for unsigned uint64_t pointers,
695 symmetric with the existing SYSCTL_[ADD_]QUAD. Type checking
696 for scalar sysctls is defined but disabled. Code that needs
697 UQUAD to pass the type checking that must compile on older
698 systems where the define is not present can check against
699 __FreeBSD_version >= 900030.
701 The system dialog(1) has been replaced with a new version previously
702 in ports as devel/cdialog. dialog(1) is mostly command-line compatible
703 with the previous version, but the libdialog associated with it has
704 a largely incompatible API. As such, the original version of libdialog
705 will be kept temporarily as libodialog, until its base system consumers
706 are replaced or updated. Bump __FreeBSD_version to 900030.
709 If you are trying to run make universe on a -stable system, and you get
710 the following warning:
711 "Makefile", line 356: "Target architecture for i386/conf/GENERIC
712 unknown. config(8) likely too old."
713 or something similar to it, then you must upgrade your -stable system
714 to 8.2-Release or newer (really, any time after r210146 7/15/2010 in
715 stable/8) or build the config from the latest stable/8 branch and
716 install it on your system.
718 Prior to this date, building a current universe on 8-stable system from
719 between 7/15/2010 and 1/2/2011 would result in a weird shell parsing
720 error in the first kernel build phase. A new config on those old
721 systems will fix that problem for older versions of -current.
724 The TCP stack has been modified to allow Khelp modules to interact with
725 it via helper hook points and store per-connection data in the TCP
726 control block. Bump __FreeBSD_version to 900029. User space tools that
727 rely on the size of struct tcpcb in tcp_var.h (e.g. sockstat) need to
731 Generic IEEE 802.3 annex 31B full duplex flow control support has been
732 added to mii(4) and bge(4), bce(4), msk(4), nfe(4) and stge(4) along
733 with brgphy(4), e1000phy(4) as well as ip1000phy() have been converted
734 to take advantage of it instead of using custom implementations. This
735 means that these drivers now no longer unconditionally advertise
736 support for flow control but only do so if flow control is a selected
737 media option. This was implemented in the generic support that way in
738 order to allow flow control to be switched on and off via ifconfig(8)
739 with the PHY specific default to typically off in order to protect
740 from unwanted effects. Consequently, if you used flow control with
741 one of the above mentioned drivers you now need to explicitly enable
743 ifconfig bge0 media auto mediaopt flowcontrol
745 Along with the above mentioned changes generic support for setting
746 1000baseT master mode also has been added and brgphy(4), ciphy(4),
747 e1000phy(4) as well as ip1000phy(4) have been converted to take
748 advantage of it. This means that these drivers now no longer take the
749 link0 parameter for selecting master mode but the master media option
750 has to be used instead, for example like in the following:
751 ifconfig bge0 media 1000baseT mediaopt full-duplex,master
753 Selection of master mode now is also available with all other PHY
754 drivers supporting 1000baseT.
757 The TCP stack has received a significant update to add support for
758 modularised congestion control and generally improve the clarity of
759 congestion control decisions. Bump __FreeBSD_version to 900025. User
760 space tools that rely on the size of struct tcpcb in tcp_var.h (e.g.
761 sockstat) need to be recompiled.
764 The man(1) utility has been replaced by a new version that no longer
765 uses /etc/manpath.config. Please consult man.conf(5) for how to
766 migrate local entries to the new format.
769 The copyright strings printed by login(1) and sshd(8) at the time of a
770 new connection have been removed to follow other operating systems and
774 A workaround for a fixed ld bug has been removed in kernel code,
775 so make sure that your system ld is built from sources after
776 revision 210245 from 2010-07-19 (r211583 if building head kernel
777 on stable/8, r211584 for stable/7; both from 2010-08-21).
778 A symptom of incorrect ld version is different addresses for
779 set_pcpu section and __start_set_pcpu symbol in kernel and/or modules.
782 The $ipv6_prefer variable in rc.conf(5) has been split into
783 $ip6addrctl_policy and $ipv6_activate_all_interfaces.
785 The $ip6addrctl_policy is a variable to choose a pre-defined
786 address selection policy set by ip6addrctl(8). A value
787 "ipv4_prefer", "ipv6_prefer" or "AUTO" can be specified. The
790 The $ipv6_activate_all_interfaces specifies whether IFDISABLED
791 flag (see an entry of 20090926) is set on an interface with no
792 corresponding $ifconfig_IF_ipv6 line. The default is "NO" for
793 security reason. If you want IPv6 link-local address on all
794 interfaces by default, set this to "YES".
796 The old ipv6_prefer="YES" is equivalent to
797 ipv6_activate_all_interfaces="YES" and
798 ip6addrctl_policy="ipv6_prefer".
801 DTrace has grown support for userland tracing. Due to this, DTrace is
802 now i386 and amd64 only.
803 dtruss(1) is now installed by default on those systems and a new
804 kernel module is needed for userland tracing: fasttrap.
805 No changes to your kernel config file are necessary to enable
806 userland tracing, but you might consider adding 'STRIP=' and
807 'CFLAGS+=-fno-omit-frame-pointer' to your make.conf if you want
808 to have informative userland stack traces in DTrace (ustack).
811 The acpi_aiboost(4) driver has been removed in favor of the new
812 aibs(4) driver. You should update your kernel configuration file.
815 BSD grep has been imported to the base system and it is built by
816 default. It is completely BSD licensed, highly GNU-compatible, uses
817 less memory than its GNU counterpart and has a small codebase.
818 However, it is slower than its GNU counterpart, which is mostly
819 noticeable for larger searches, for smaller ones it is measurable
820 but not significant. The reason is complex, the most important factor
821 is that we lack a modern and efficient regex library and GNU
822 overcomes this by optimizing the searches internally. Future work
823 on improving the regex performance is planned, for the meantime,
824 users that need better performance, can build GNU grep instead by
825 setting the WITH_GNU_GREP knob.
828 Due to the import of powerpc64 support, all existing powerpc kernel
829 configuration files must be updated with a machine directive like this:
830 machine powerpc powerpc
832 In addition, an updated config(8) is required to build powerpc kernels
836 A new version of ZFS (version 15) has been merged to -HEAD.
837 This version uses a python library for the following subcommands:
838 zfs allow, zfs unallow, zfs groupspace, zfs userspace.
839 For full functionality of these commands the following port must
840 be installed: sysutils/py-zfs
843 'vm_page's are now hashed by physical address to an array of mutexes.
844 Currently this is only used to serialize access to hold_count. Over
845 time the page queue mutex will be peeled away. This changes the size
846 of pmap on every architecture. And requires all callers of vm_page_hold
847 and vm_page_unhold to be updated.
850 WITH_CTF can now be specified in src.conf (not recommended, there
851 are some problems with static executables), make.conf (would also
852 affect ports which do not use GNU make and do not override the
853 compile targets) or in the kernel config (via "makeoptions
855 When WITH_CTF was specified there before this was silently ignored,
856 so make sure that WITH_CTF is not used in places which could lead
857 to unwanted behavior.
860 The kernel option COMPAT_IA32 has been replaced with COMPAT_FREEBSD32
861 to allow 32-bit compatibility on non-x86 platforms. All kernel
862 configurations on amd64 and ia64 platforms using these options must
863 be modified accordingly.
866 The utmp user accounting database has been replaced with utmpx,
867 the user accounting interface standardized by POSIX.
868 Unfortunately the semantics of utmp and utmpx don't match,
869 making it practically impossible to support both interfaces.
870 The user accounting database is used by tools like finger(1),
871 last(1), talk(1), w(1) and ac(8).
873 All applications in the base system use utmpx. This means only
874 local binaries (e.g. from the ports tree) may still use these
875 utmp database files. These applications must be rebuilt to make
878 After the system has been upgraded, it is safe to remove the old
879 log files (/var/run/utmp, /var/log/lastlog and /var/log/wtmp*),
880 assuming their contents is of no importance anymore. Old wtmp
881 databases can only be used by last(1) and ac(8) after they have
882 been converted to the new format using wtmpcvt(1).
885 Introduce the kernel thread "deadlock resolver" (which can be enabled
886 via the DEADLKRES option, see NOTES for more details) and the
887 sleepq_type() function for sleepqueues.
890 The rc.firewall and rc.firewall6 were unified, and
891 rc.firewall6 and rc.d/ip6fw were removed.
892 According to the removal of rc.d/ip6fw, ipv6_firewall_* rc
893 variables are obsoleted. Instead, the following new rc
894 variables are added to rc.d/ipfw:
896 firewall_client_net_ipv6, firewall_simple_iif_ipv6,
897 firewall_simple_inet_ipv6, firewall_simple_oif_ipv6,
898 firewall_simple_onet_ipv6, firewall_trusted_ipv6
900 The meanings correspond to the relevant IPv4 variables.
906 The default terminal emulation for syscons(4) has been changed
907 from cons25 to xterm on all platforms except pc98. This means
908 that the /etc/ttys file needs to be updated to ensure correct
909 operation of applications on the console.
911 The terminal emulation style can be toggled per window by using
912 vidcontrol(1)'s -T flag. The TEKEN_CONS25 kernel configuration
913 options can be used to change the compile-time default back to
916 To prevent graphical artifacts, make sure the TERM environment
917 variable is set to match the terminal emulation that is being
918 performed by syscons(4).
921 The layout of the structure ieee80211req_scan_result has changed.
922 Applications that require wireless scan results (e.g. ifconfig(8))
923 from net80211 need to be recompiled.
925 Applications such as wpa_supplicant(8) may require a full world
926 build without using NO_CLEAN in order to get synchronized with the
930 The iwn(4) driver has been updated to support the 5000 and 5150 series.
931 There's one kernel module for each firmware. Adding "device iwnfw"
932 to the kernel configuration file means including all three firmware
933 images inside the kernel. If you want to include just the one for
934 your wireless card, use the devices iwn4965fw, iwn5000fw or
938 The rc.d/network_ipv6, IPv6 configuration script has been integrated
939 into rc.d/netif. The changes are the following:
941 1. To use IPv6, simply define $ifconfig_IF_ipv6 like $ifconfig_IF
942 for IPv4. For aliases, $ifconfig_IF_aliasN should be used.
943 Note that both variables need the "inet6" keyword at the head.
945 Do not set $ipv6_network_interfaces manually if you do not
946 understand what you are doing. It is not needed in most cases.
948 $ipv6_ifconfig_IF and $ipv6_ifconfig_IF_aliasN still work, but
951 2. $ipv6_enable is obsolete. Use $ipv6_prefer and
952 "inet6 accept_rtadv" keyword in ifconfig(8) instead.
954 If you define $ipv6_enable=YES, it means $ipv6_prefer=YES and
955 all configured interfaces have "inet6 accept_rtadv" in the
956 $ifconfig_IF_ipv6. These are for backward compatibility.
958 3. A new variable $ipv6_prefer has been added. If NO, IPv6
959 functionality of interfaces with no corresponding
960 $ifconfig_IF_ipv6 is disabled by using "inet6 ifdisabled" flag,
961 and the default address selection policy of ip6addrctl(8)
962 is the IPv4-preferred one (see rc.d/ip6addrctl for more details).
963 Note that if you want to configure IPv6 functionality on the
964 disabled interfaces after boot, first you need to clear the flag by
965 using ifconfig(8) like:
967 ifconfig em0 inet6 -ifdisabled
969 If YES, the default address selection policy is set as
972 The default value of $ipv6_prefer is NO.
974 4. If your system need to receive Router Advertisement messages,
975 define "inet6 accept_rtadv" in $ifconfig_IF_ipv6. The rc(8)
976 scripts automatically invoke rtsol(8) when the interface becomes
977 UP. The Router Advertisement messages are used for SLAAC
978 (State-Less Address AutoConfiguration).
981 802.11s D3.03 support was committed. This is incompatible with the
982 previous code, which was based on D3.0.
985 A sysctl variable net.inet6.ip6.accept_rtadv now sets the default value
986 of a per-interface flag ND6_IFF_ACCEPT_RTADV, not a global knob to
987 control whether accepting Router Advertisement messages or not.
988 Also, a per-interface flag ND6_IFF_AUTO_LINKLOCAL has been added and
989 a sysctl variable net.inet6.ip6.auto_linklocal is its default value.
990 The ifconfig(8) utility now supports these flags.
993 ZFS snapshots are now mounted with MNT_IGNORE flag. Use -v option for
994 mount(8) and -a option for df(1) to see them.
997 The old tunable hw.bus.devctl_disable has been superseded by
998 hw.bus.devctl_queue. hw.bus.devctl_disable=1 in loader.conf should be
999 replaced by hw.bus.devctl_queue=0. The default for this new tunable
1003 Remove the option STOP_NMI. The default action is now to use NMI only
1004 for KDB via the newly introduced function stop_cpus_hard() and
1005 maintain stop_cpus() to just use a normal IPI_STOP on ia32 and amd64.
1008 The stable/8 branch created in subversion. This corresponds to the
1009 RELENG_8 branch in CVS.
1012 Bump the shared library version numbers for all libraries that do not
1013 use symbol versioning as part of the 8.0-RELEASE cycle. Bump
1014 __FreeBSD_version to 800105.
1017 Due to changes in the implementation of virtual network stack support,
1018 all network-related kernel modules must be recompiled. As this change
1019 breaks the ABI, bump __FreeBSD_version to 800104.
1022 The TOE interface to the TCP syncache has been modified to remove
1023 struct tcpopt (<netinet/tcp_var.h>) from the ABI of the network stack.
1024 The cxgb driver is the only TOE consumer affected by this change, and
1025 needs to be recompiled along with the kernel. As this change breaks
1026 the ABI, bump __FreeBSD_version to 800103.
1029 Padding has been added to struct tcpcb, sackhint and tcpstat in
1030 <netinet/tcp_var.h> to facilitate future MFCs and bug fixes whilst
1031 maintaining the ABI. However, this change breaks the ABI, so bump
1032 __FreeBSD_version to 800102. User space tools that rely on the size of
1033 any of these structs (e.g. sockstat) need to be recompiled.
1036 The NFS_LEGACYRPC option has been removed along with the old kernel
1037 RPC implementation that this option selected. Kernel configurations
1038 may need to be adjusted.
1041 The network interface device nodes at /dev/net/<interface> have been
1042 removed. All ioctl operations can be performed the normal way using
1043 routing sockets. The kqueue functionality can generally be replaced
1044 with routing sockets.
1047 The documentation from the FreeBSD Documentation Project (Handbook,
1048 FAQ, etc.) is now installed via packages by sysinstall(8) and under
1049 the /usr/local/share/doc/freebsd directory instead of /usr/share/doc.
1052 The ABI of various structures related to the SYSV IPC API have been
1053 changed. As a result, the COMPAT_FREEBSD[456] and COMPAT_43 kernel
1054 options now all require COMPAT_FREEBSD7. Bump __FreeBSD_version to
1058 Layout of struct vnet has changed as routing related variables were
1059 moved to their own Vimage module. Modules need to be recompiled. Bump
1060 __FreeBSD_version to 800099.
1063 NGROUPS_MAX and NGROUPS have been increased from 16 to 1023 and 1024
1064 respectively. As long as no more than 16 groups per process are used,
1065 no changes should be visible. When more than 16 groups are used, old
1066 binaries may fail if they call getgroups() or getgrouplist() with
1067 statically sized storage. Recompiling will work around this, but
1068 applications should be modified to use dynamically allocated storage
1069 for group arrays as POSIX.1-2008 does not cap an implementation's
1070 number of supported groups at NGROUPS_MAX+1 as previous versions did.
1072 NFS and portalfs mounts may also be affected as the list of groups is
1073 truncated to 16. Users of NFS who use more than 16 groups, should
1074 take care that negative group permissions are not used on the exported
1075 file systems as they will not be reliable unless a GSSAPI based
1076 authentication method is used.
1079 The compiling option ADAPTIVE_LOCKMGRS has been introduced. This
1080 option compiles in the support for adaptive spinning for lockmgrs
1081 which want to enable it. The lockinit() function now accepts the flag
1082 LK_ADAPTIVE in order to make the lock object subject to adaptive
1083 spinning when both held in write and read mode.
1086 The layout of the structure returned by IEEE80211_IOC_STA_INFO has
1087 changed. User applications that use this ioctl need to be rebuilt.
1090 The layout of struct thread has changed. Kernel and modules need to
1094 The layout of structs ifnet, domain, protosw and vnet_net has changed.
1095 Kernel modules need to be rebuilt. Bump __FreeBSD_version to 800097.
1098 window(1) has been removed from the base system. It can now be
1099 installed from ports. The port is called misc/window.
1102 The way we are storing and accessing `routing table' entries has
1103 changed. Programs reading the FIB, like netstat, need to be
1107 A new netisr implementation has been added for FreeBSD 8. Network
1108 file system modules, such as igmp, ipdivert, and others, should be
1110 Bump __FreeBSD_version to 800096.
1113 Remove the tunable/sysctl debug.mpsafevfs as its initial purpose is no
1117 Add VOP_ACCESSX(9). File system modules need to be rebuilt.
1118 Bump __FreeBSD_version to 800094.
1121 Add mnt_xflag field to 'struct mount'. File system modules need to be
1123 Bump __FreeBSD_version to 800093.
1126 The compiling option ADAPTIVE_SX has been retired while it has been
1127 introduced the option NO_ADAPTIVE_SX which handles the reversed logic.
1128 The KPI for sx_init_flags() changes as accepting flags:
1129 SX_ADAPTIVESPIN flag has been retired while the SX_NOADAPTIVE flag has
1130 been introduced in order to handle the reversed logic.
1131 Bump __FreeBSD_version to 800092.
1134 Add support for hierarchical jails. Remove global securelevel.
1135 Bump __FreeBSD_version to 800091.
1138 The layout of struct vnet_net has changed, therefore modules
1140 Bump __FreeBSD_version to 800090.
1143 The newly imported zic(8) produces a new format in the output. Please
1144 run tzsetup(8) to install the newly created data to /etc/localtime.
1147 The sysctl tree for the usb stack has renamed from hw.usb2.* to
1148 hw.usb.* and is now consistent again with previous releases.
1151 802.11 monitor mode support was revised and driver api's were changed.
1152 Drivers dependent on net80211 now support DLT_IEEE802_11_RADIO instead
1153 of DLT_IEEE802_11. No user-visible data structures were changed but
1154 applications that use DLT_IEEE802_11 may require changes.
1155 Bump __FreeBSD_version to 800088.
1158 The layout of the following structs has changed: sysctl_oid,
1159 socket, ifnet, inpcbinfo, tcpcb, syncache_head, vnet_inet,
1160 vnet_inet6 and vnet_ipfw. Most modules need to be rebuild or
1161 panics may be experienced. World rebuild is required for
1162 correctly checking networking state from userland.
1163 Bump __FreeBSD_version to 800085.
1166 MLDv2 and Source-Specific Multicast (SSM) have been merged
1167 to the IPv6 stack. VIMAGE hooks are in but not yet used.
1168 The implementation of SSM within FreeBSD's IPv6 stack closely
1169 follows the IPv4 implementation.
1171 For kernel developers:
1173 * The most important changes are that the ip6_output() and
1174 ip6_input() paths no longer take the IN6_MULTI_LOCK,
1175 and this lock has been downgraded to a non-recursive mutex.
1177 * As with the changes to the IPv4 stack to support SSM, filtering
1178 of inbound multicast traffic must now be performed by transport
1179 protocols within the IPv6 stack. This does not apply to TCP and
1180 SCTP, however, it does apply to UDP in IPv6 and raw IPv6.
1182 * The KPIs used by IPv6 multicast are similar to those used by
1183 the IPv4 stack, with the following differences:
1184 * im6o_mc_filter() is analogous to imo_multicast_filter().
1185 * The legacy KAME entry points in6_joingroup and in6_leavegroup()
1186 are shimmed to in6_mc_join() and in6_mc_leave() respectively.
1187 * IN6_LOOKUP_MULTI() has been deprecated and removed.
1188 * IPv6 relies on MLD for the DAD mechanism. KAME's internal KPIs
1189 for MLDv1 have an additional 'timer' argument which is used to
1190 jitter the initial membership report for the solicited-node
1191 multicast membership on-link.
1192 * This is not strictly needed for MLDv2, which already jitters
1193 its report transmissions. However, the 'timer' argument is
1194 preserved in case MLDv1 is active on the interface.
1196 * The KAME linked-list based IPv6 membership implementation has
1197 been refactored to use a vector similar to that used by the IPv4
1199 Code which maintains a list of its own multicast memberships
1200 internally, e.g. carp, has been updated to reflect the new
1203 * There is a known Lock Order Reversal (LOR) due to in6_setscope()
1204 acquiring the IF_AFDATA_LOCK and being called within ip6_output().
1205 Whilst MLDv2 tries to avoid this otherwise benign LOR, it is an
1206 implementation constraint which needs to be addressed in HEAD.
1208 For application developers:
1210 * The changes are broadly similar to those made for the IPv4
1213 * The use of IPv4 and IPv6 multicast socket options on the same
1214 socket, using mapped addresses, HAS NOT been tested or supported.
1216 * There are a number of issues with the implementation of various
1217 IPv6 multicast APIs which need to be resolved in the API surface
1218 before the implementation is fully compatible with KAME userland
1219 use, and these are mostly to do with interface index treatment.
1221 * The literature available discusses the use of either the delta / ASM
1222 API with setsockopt(2)/getsockopt(2), or the full-state / ASM API
1223 using setsourcefilter(3)/getsourcefilter(3). For more information
1224 please refer to RFC 3768, 'Socket Interface Extensions for
1225 Multicast Source Filters'.
1227 * Applications which use the published RFC 3678 APIs should be fine.
1229 For systems administrators:
1231 * The mtest(8) utility has been refactored to support IPv6, in
1232 addition to IPv4. Interface addresses are no longer accepted
1233 as arguments, their names must be used instead. The utility
1234 will map the interface name to its first IPv4 address as
1235 returned by getifaddrs(3).
1237 * The ifmcstat(8) utility has also been updated to print the MLDv2
1238 endpoint state and source filter lists via sysctl(3).
1240 * The net.inet6.ip6.mcast.loop sysctl may be tuned to 0 to disable
1241 loopback of IPv6 multicast datagrams by default; it defaults to 1
1242 to preserve the existing behaviour. Disabling multicast loopback is
1243 recommended for optimal system performance.
1245 * The IPv6 MROUTING code has been changed to examine this sysctl
1246 instead of attempting to perform a group lookup before looping
1247 back forwarded datagrams.
1249 Bump __FreeBSD_version to 800084.
1252 Implement low-level Bluetooth HCI API.
1253 Bump __FreeBSD_version to 800083.
1256 The layout of struct malloc_type, used by modules to register new
1257 memory allocation types, has changed. Most modules will need to
1258 be rebuilt or panics may be experienced.
1259 Bump __FreeBSD_version to 800081.
1262 Anticipate overflowing inp_flags - add inp_flags2.
1263 This changes most offsets in inpcb, so checking v4 connection
1264 state will require a world rebuild.
1265 Bump __FreeBSD_version to 800080.
1268 Add an llentry to struct route and struct route_in6. Modules
1269 embedding a struct route will need to be recompiled.
1270 Bump __FreeBSD_version to 800079.
1273 The size of rt_metrics_lite and by extension rtentry has changed.
1274 Networking administration apps will need to be recompiled.
1275 The route command now supports show as an alias for get, weighting
1276 of routes, sticky and nostick flags to alter the behavior of stateful
1278 Bump __FreeBSD_version to 800078.
1281 Do not use Giant for kbdmux(4) locking. This is wrong and
1282 apparently causing more problems than it solves. This will
1283 re-open the issue where interrupt handlers may race with
1284 kbdmux(4) in polling mode. Typical symptoms include (but
1285 not limited to) duplicated and/or missing characters when
1286 low level console functions (such as gets) are used while
1287 interrupts are enabled (for example geli password prompt,
1288 mountroot prompt etc.). Disabling kbdmux(4) may help.
1291 The size of structs vnet_net, vnet_inet and vnet_ipfw has changed;
1292 kernel modules referencing any of the above need to be recompiled.
1293 Bump __FreeBSD_version to 800075.
1296 GEOM_PART has become the default partition slicer for storage devices,
1297 replacing GEOM_MBR, GEOM_BSD, GEOM_PC98 and GEOM_GPT slicers. It
1298 introduces some changes:
1300 MSDOS/EBR: the devices created from MSDOS extended partition entries
1301 (EBR) can be named differently than with GEOM_MBR and are now symlinks
1302 to devices with offset-based names. fstabs may need to be modified.
1304 BSD: the "geometry does not match label" warning is harmless in most
1305 cases but it points to problems in file system misalignment with
1306 disk geometry. The "c" partition is now implicit, covers the whole
1307 top-level drive and cannot be (mis)used by users.
1309 General: Kernel dumps are now not allowed to be written to devices
1310 whose partition types indicate they are meant to be used for file
1311 systems (or, in case of MSDOS partitions, as something else than
1314 Most of these changes date approximately from 200812.
1317 The uscanner(4) driver has been removed from the kernel. This follows
1318 Linux removing theirs in 2.6 and making libusb the default interface
1319 (supported by sane).
1322 The multicast forwarding code has been cleaned up. netstat(1)
1323 only relies on KVM now for printing bandwidth upcall meters.
1324 The IPv4 and IPv6 modules are split into ip_mroute_mod and
1325 ip6_mroute_mod respectively. The config(5) options for statically
1326 compiling this code remain the same, i.e. 'options MROUTING'.
1329 Support for the IFF_NEEDSGIANT network interface flag has been
1330 removed, which means that non-MPSAFE network device drivers are no
1331 longer supported. In particular, if_ar, if_sr, and network device
1332 drivers from the old (legacy) USB stack can no longer be built or
1336 POSIX.1 Native Language Support (NLS) has been enabled in libc and
1337 a bunch of new language catalog files have also been added.
1338 This means that some common libc messages are now localized and
1339 they depend on the LC_MESSAGES environmental variable.
1342 The k8temp(4) driver has been renamed to amdtemp(4) since
1343 support for Family 10 and Family 11 CPU families was added.
1346 IGMPv3 and Source-Specific Multicast (SSM) have been merged
1347 to the IPv4 stack. VIMAGE hooks are in but not yet used.
1349 For kernel developers, the most important changes are that the
1350 ip_output() and ip_input() paths no longer take the IN_MULTI_LOCK(),
1351 and this lock has been downgraded to a non-recursive mutex.
1353 Transport protocols (UDP, Raw IP) are now responsible for filtering
1354 inbound multicast traffic according to group membership and source
1355 filters. The imo_multicast_filter() KPI exists for this purpose.
1356 Transports which do not use multicast (SCTP, TCP) already reject
1357 multicast by default. Forwarding and receive performance may improve
1358 as a mutex acquisition is no longer needed in the ip_input()
1359 low-level input path. in_addmulti() and in_delmulti() are shimmed
1360 to new KPIs which exist to support SSM in-kernel.
1362 For application developers, it is recommended that loopback of
1363 multicast datagrams be disabled for best performance, as this
1364 will still cause the lock to be taken for each looped-back
1365 datagram transmission. The net.inet.ip.mcast.loop sysctl may
1366 be tuned to 0 to disable loopback by default; it defaults to 1
1367 to preserve the existing behaviour.
1369 For systems administrators, to obtain best performance with
1370 multicast reception and multiple groups, it is always recommended
1371 that a card with a suitably precise hash filter is used. Hash
1372 collisions will still result in the lock being taken within the
1373 transport protocol input path to check group membership.
1375 If deploying FreeBSD in an environment with IGMP snooping switches,
1376 it is recommended that the net.inet.igmp.sendlocal sysctl remain
1377 enabled; this forces 224.0.0.0/24 group membership to be announced
1380 The size of 'struct igmpstat' has changed; netstat needs to be
1381 recompiled to reflect this.
1382 Bump __FreeBSD_version to 800070.
1385 libusb20.so.1 is now installed as libusb.so.1 and the ports system
1386 updated to use it. This requires a buildworld/installworld in order to
1387 update the library and dependencies (usbconfig, etc). Its advisable to
1388 rebuild all ports which uses libusb. More specific directions are given
1389 in the ports collection UPDATING file. Any /etc/libmap.conf entries for
1390 libusb are no longer required and can be removed.
1393 A workaround is committed to allow the creation of System V shared
1394 memory segment of size > 2 GB on the 64-bit architectures.
1395 Due to a limitation of the existing ABI, the shm_segsz member
1396 of the struct shmid_ds, returned by shmctl(IPC_STAT) call is
1397 wrong for large segments. Note that limits must be explicitly
1398 raised to allow such segments to be created.
1401 The layout of struct ifnet has changed, requiring a rebuild of all
1402 network device driver modules.
1405 The /dev handling for the new USB stack has changed, a
1406 buildworld/installworld is required for libusb20.
1409 The new USB2 stack has now been permanently moved in and all kernel and
1410 module names reverted to their previous values (eg, usb, ehci, ohci,
1411 ums, ...). The old usb stack can be compiled in by prefixing the name
1412 with the letter 'o', the old usb modules have been removed.
1413 Updating entry 20090216 for xorg and 20090215 for libmap may still
1417 The rc.conf(5) option if_up_delay has been renamed to
1418 defaultroute_delay to better reflect its purpose. If you have
1419 customized this setting in /etc/rc.conf you need to update it to
1423 xorg 7.4 wants to configure its input devices via hald which does not
1424 yet work with USB2. If the keyboard/mouse does not work in xorg then
1426 Option "AllowEmptyInput" "off"
1427 to your ServerLayout section. This will cause X to use the configured
1428 kbd and mouse sections from your xorg.conf.
1431 The GENERIC kernels for all architectures now default to the new USB2
1432 stack. No kernel config options or code have been removed so if a
1433 problem arises please report it and optionally revert to the old USB
1434 stack. If you are loading USB kernel modules or have a custom kernel
1435 that includes GENERIC then ensure that usb names are also changed over,
1436 eg uftdi -> usb2_serial_ftdi.
1438 Older programs linked against the ports libusb 0.1 need to be
1439 redirected to the new stack's libusb20. /etc/libmap.conf can
1441 # Map old usb library to new one for usb2 stack
1442 libusb-0.1.so.8 libusb20.so.1
1445 All USB ethernet devices now attach as interfaces under the name ueN
1446 (eg. ue0). This is to provide a predictable name as vendors often
1447 change usb chipsets in a product without notice.
1450 The ichsmb(4) driver has been changed to require SMBus slave
1451 addresses be left-justified (xxxxxxx0b) rather than right-justified.
1452 All of the other SMBus controller drivers require left-justified
1453 slave addresses, so this change makes all the drivers provide the
1457 INET6 statistics (struct ip6stat) was updated.
1458 netstat(1) needs to be recompiled.
1461 NTFS has been removed from GENERIC kernel on amd64 to match
1462 GENERIC on i386. Should not cause any issues since mount_ntfs(8)
1463 will load ntfs.ko module automatically when NTFS support is
1464 actually needed, unless ntfs.ko is not installed or security
1465 level prohibits loading kernel modules. If either is the case,
1466 "options NTFS" has to be added into kernel config.
1469 TCP Appropriate Byte Counting (RFC 3465) support added to kernel.
1470 New field in struct tcpcb breaks ABI, so bump __FreeBSD_version to
1471 800061. User space tools that rely on the size of struct tcpcb in
1472 tcp_var.h (e.g. sockstat) need to be recompiled.
1475 ng_tty(4) module updated to match the new TTY subsystem.
1476 Due to API change, user-level applications must be updated.
1477 New API support added to mpd5 CVS and expected to be present
1478 in next mpd5.3 release.
1481 With __FreeBSD_version 800060 the makefs tool is part of
1482 the base system (it was a port).
1485 The afdata and ifnet locks have been changed from mutexes to
1486 rwlocks, network modules will need to be re-compiled.
1489 __FreeBSD_version 800059 incorporates the new arp-v2 rewrite.
1490 RTF_CLONING, RTF_LLINFO and RTF_WASCLONED flags are eliminated.
1491 The new code reduced struct rtentry{} by 16 bytes on 32-bit
1492 architecture and 40 bytes on 64-bit architecture. The userland
1493 applications "arp" and "ndp" have been updated accordingly.
1494 The output from "netstat -r" shows only routing entries and
1495 none of the L2 information.
1498 __FreeBSD_version 800057 marks the switchover from the
1499 binary ath hal to source code. Users must add the line:
1501 options AH_SUPPORT_AR5416
1503 to their kernel config files when specifying:
1507 The ath_hal module no longer exists; the code is now compiled
1508 together with the driver in the ath module. It is now
1509 possible to tailor chip support (i.e. reduce the set of chips
1510 and thereby the code size); consult ath_hal(4) for details.
1513 __FreeBSD_version 800054 adds memory barriers to
1514 <machine/atomic.h>, new interfaces to ifnet to facilitate
1515 multiple hardware transmit queues for cards that support
1516 them, and a lock-less ring-buffer implementation to
1517 enable drivers to more efficiently manage queueing of
1521 A new version of ZFS (version 13) has been merged to -HEAD.
1522 This version has zpool attribute "listsnapshots" off by
1523 default, which means "zfs list" does not show snapshots,
1524 and is the same as Solaris behavior.
1527 dummynet(4) ABI has changed. ipfw(8) needs to be recompiled.
1530 The uhci, ohci, ehci and slhci USB Host controller drivers have
1531 been put into separate modules. If you load the usb module
1532 separately through loader.conf you will need to load the
1533 appropriate *hci module as well. E.g. for a UHCI-based USB 2.0
1534 controller add the following to loader.conf:
1540 The ABI used by the PMC toolset has changed. Please keep
1541 userland (libpmc(3)) and the kernel module (hwpmc(4)) in
1545 atapci kernel module now includes only generic PCI ATA
1546 driver. AHCI driver moved to ataahci kernel module.
1547 All vendor-specific code moved into separate kernel modules:
1548 ataacard, ataacerlabs, ataadaptec, ataamd, ataati, atacenatek,
1549 atacypress, atacyrix, atahighpoint, ataintel, ataite, atajmicron,
1550 atamarvell, atamicron, atanational, atanetcell, atanvidia,
1551 atapromise, ataserverworks, atasiliconimage, atasis, atavia
1554 The TTY subsystem of the kernel has been replaced by a new
1555 implementation, which provides better scalability and an
1556 improved driver model. Most common drivers have been migrated to
1557 the new TTY subsystem, while others have not. The following
1558 drivers have not yet been ported to the new TTY layer:
1561 cy, digi, rc, rp, sio
1567 ng_h4, ng_tty, ppp, sl, snp
1569 Adding these drivers to your kernel configuration file shall
1570 cause compilation to fail.
1573 ntpd has been upgraded to 4.2.4p5.
1576 OpenSSH has been upgraded to 5.1p1.
1578 For many years, FreeBSD's version of OpenSSH preferred DSA
1579 over RSA for host and user authentication keys. With this
1580 upgrade, we've switched to the vendor's default of RSA over
1581 DSA. This may cause upgraded clients to warn about unknown
1582 host keys even for previously known hosts. Users should
1583 follow the usual procedure for verifying host keys before
1584 accepting the RSA key.
1586 This can be circumvented by setting the "HostKeyAlgorithms"
1587 option to "ssh-dss,ssh-rsa" in ~/.ssh/config or on the ssh
1590 Please note that the sequence of keys offered for
1591 authentication has been changed as well. You may want to
1592 specify IdentityFile in a different order to revert this
1596 The sio(4) driver has been removed from the i386 and amd64
1597 kernel configuration files. This means uart(4) is now the
1598 default serial port driver on those platforms as well.
1600 To prevent collisions with the sio(4) driver, the uart(4) driver
1601 uses different names for its device nodes. This means the
1602 onboard serial port will now most likely be called "ttyu0"
1603 instead of "ttyd0". You may need to reconfigure applications to
1604 use the new device names.
1606 When using the serial port as a boot console, be sure to update
1607 /boot/device.hints and /etc/ttys before booting the new kernel.
1608 If you forget to do so, you can still manually specify the hints
1609 at the loader prompt:
1611 set hint.uart.0.at="isa"
1612 set hint.uart.0.port="0x3F8"
1613 set hint.uart.0.flags="0x10"
1614 set hint.uart.0.irq="4"
1618 The gpt(8) utility has been removed. Use gpart(8) to partition
1622 The version that Linuxulator emulates was changed from 2.4.2
1623 to 2.6.16. If you experience any problems with Linux binaries
1624 please try to set sysctl compat.linux.osrelease to 2.4.2 and
1625 if it fixes the problem contact emulation mailing list.
1628 ISDN4BSD (I4B) was removed from the src tree. You may need to
1629 update a your kernel configuration and remove relevant entries.
1632 I have checked in code to support multiple routing tables.
1633 See the man pages setfib(1) and setfib(2).
1634 This is a hopefully backwards compatible version,
1635 but to make use of it you need to compile your kernel
1636 with options ROUTETABLES=2 (or more up to 16).
1639 The 802.11 wireless support was redone to enable multi-bss
1640 operation on devices that are capable. The underlying device
1641 is no longer used directly but instead wlanX devices are
1642 cloned with ifconfig. This requires changes to rc.conf files.
1643 For example, change:
1644 ifconfig_ath0="WPA DHCP"
1647 ifconfig_wlan0="WPA DHCP"
1648 see rc.conf(5) for more details. In addition, mergemaster of
1649 /etc/rc.d is highly recommended. Simultaneous update of userland
1650 and kernel wouldn't hurt either.
1652 As part of the multi-bss changes the wlan_scan_ap and wlan_scan_sta
1653 modules were merged into the base wlan module. All references
1654 to these modules (e.g. in kernel config files) must be removed.
1657 psm(4) has gained write(2) support in native operation level.
1658 Arbitrary commands can be written to /dev/psm%d and status can
1659 be read back from it. Therefore, an application is responsible
1660 for status validation and error recovery. It is a no-op in
1661 other operation levels.
1664 Support for KSE threading has been removed from the kernel. To
1665 run legacy applications linked against KSE libmap.conf may
1666 be used. The following libmap.conf may be used to ensure
1667 compatibility with any prior release:
1669 libpthread.so.1 libthr.so.1
1670 libpthread.so.2 libthr.so.2
1671 libkse.so.3 libthr.so.3
1674 The layout of struct vmspace has changed. This affects libkvm
1675 and any executables that link against libkvm and use the
1676 kvm_getprocs() function. In particular, but not exclusively,
1677 it affects ps(1), fstat(1), pkill(1), systat(1), top(1) and w(1).
1678 The effects are minimal, but it's advisable to upgrade world
1682 The latest em driver no longer has support in it for the
1683 82575 adapter, this is now moved to the igb driver. The
1684 split was done to make new features that are incompatible
1685 with older hardware easier to do.
1688 The new geom_lvm(4) geom class has been renamed to geom_linux_lvm(4),
1689 likewise the kernel option is now GEOM_LINUX_LVM.
1692 The default NFS mount mode has changed from UDP to TCP for
1693 increased reliability. If you rely on (insecurely) NFS
1694 mounting across a firewall you may need to update your
1698 Belatedly note the addition of m_collapse for compacting
1702 The fts(3) structures have been changed to use adequate
1703 integer types for their members and so to be able to cope
1704 with huge file trees. The old fts(3) ABI is preserved
1705 through symbol versioning in libc, so third-party binaries
1706 using fts(3) should still work, although they will not take
1707 advantage of the extended types. At the same time, some
1708 third-party software might fail to build after this change
1709 due to unportable assumptions made in its source code about
1710 fts(3) structure members. Such software should be fixed
1711 by its vendor or, in the worst case, in the ports tree.
1712 FreeBSD_version 800015 marks this change for the unlikely
1713 case that a portable fix is impossible.
1716 To upgrade to -current after this date, you must be running
1717 FreeBSD not older than 6.0-RELEASE. Upgrading to -current
1718 from 5.x now requires a stop over at RELENG_6 or RELENG_7 systems.
1721 The ADAPTIVE_GIANT kernel option has been retired because its
1722 functionality is the default now.
1725 The AT keyboard emulation of sunkbd(4) has been turned on
1726 by default. In order to make the special symbols of the Sun
1727 keyboards driven by sunkbd(4) work under X these now have
1728 to be configured the same way as Sun USB keyboards driven
1729 by ukbd(4) (which also does AT keyboard emulation), f.e.:
1731 Option "XkbLayout" "us"
1732 Option "XkbRules" "xorg"
1733 Option "XkbSymbols" "pc(pc105)+sun_vndr/usb(sun_usb)+us"
1736 It has been decided that it is desirable to provide ABI
1737 backwards compatibility to the FreeBSD 4/5/6 versions of the
1738 PCIOCGETCONF, PCIOCREAD and PCIOCWRITE IOCTLs, which was
1739 broken with the introduction of PCI domain support (see the
1740 20070930 entry). Unfortunately, this required the ABI of
1741 PCIOCGETCONF to be broken again in order to be able to
1742 provide backwards compatibility to the old version of that
1743 IOCTL. Thus consumers of PCIOCGETCONF have to be recompiled
1744 again. As for prominent ports this affects neither pciutils
1745 nor xorg-server this time, the hal port needs to be rebuilt
1749 The misnamed kthread_create() and friends have been renamed
1750 to kproc_create() etc. Many of the callers already
1751 used kproc_start()..
1752 I will return kthread_create() and friends in a while
1753 with implementations that actually create threads, not procs.
1754 Renaming corresponds with version 800002.
1763 Avoid using make -j when upgrading. While generally safe, there are
1764 sometimes problems using -j to upgrade. If your upgrade fails with
1765 -j, please try again without -j. From time to time in the past there
1766 have been problems using -j with buildworld and/or installworld. This
1767 is especially true when upgrading between "distant" versions (eg one
1768 that cross a major release boundary or several minor releases, or when
1769 several months have passed on the -current branch).
1771 Sometimes, obscure build problems are the result of environment
1772 poisoning. This can happen because the make utility reads its
1773 environment when searching for values for global variables. To run
1774 your build attempts in an "environmental clean room", prefix all make
1775 commands with 'env -i '. See the env(1) manual page for more details.
1777 When upgrading from one major version to another it is generally best
1778 to upgrade to the latest code in the currently installed branch first,
1779 then do an upgrade to the new branch. This is the best-tested upgrade
1780 path, and has the highest probability of being successful. Please try
1781 this approach before reporting problems with a major version upgrade.
1785 When upgrading the boot ZFS pool to a new version, always follow
1788 1.) recompile and reinstall the ZFS boot loader and boot block
1789 (this is part of "make buildworld" and "make installworld")
1791 2.) update the ZFS boot block on your boot drive
1793 The following example updates the ZFS boot block on the first
1794 partition (freebsd-boot) of a GPT partitioned drive ad0:
1795 "gpart bootcode -p /boot/gptzfsboot -i 1 ad0"
1797 Non-boot pools do not need these updates.
1801 If you are updating from a prior version of FreeBSD (even one just
1802 a few days old), you should follow this procedure. It is the most
1803 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
1805 make kernel-toolchain
1806 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
1807 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
1809 To test a kernel once
1810 ---------------------
1811 If you just want to boot a kernel once (because you are not sure
1812 if it works, or if you want to boot a known bad kernel to provide
1813 debugging information) run
1814 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
1815 nextboot -k testkernel
1817 To just build a kernel when you know that it won't mess you up
1818 --------------------------------------------------------------
1819 This assumes you are already running a CURRENT system. Replace
1820 ${arch} with the architecture of your machine (e.g. "i386",
1821 "arm", "amd64", "ia64", "pc98", "sparc64", "powerpc", "mips", etc).
1823 cd src/sys/${arch}/conf
1824 config KERNEL_NAME_HERE
1825 cd ../compile/KERNEL_NAME_HERE
1830 If this fails, go to the "To build a kernel" section.
1832 To rebuild everything and install it on the current system.
1833 -----------------------------------------------------------
1834 # Note: sometimes if you are running current you gotta do more than
1835 # is listed here if you are upgrading from a really old current.
1837 <make sure you have good level 0 dumps>
1839 make kernel KERNCONF=YOUR_KERNEL_HERE
1841 <reboot in single user> [3]
1849 To cross-install current onto a separate partition
1850 --------------------------------------------------
1851 # In this approach we use a separate partition to hold
1852 # current's root, 'usr', and 'var' directories. A partition
1853 # holding "/", "/usr" and "/var" should be about 2GB in
1856 <make sure you have good level 0 dumps>
1859 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1860 <maybe newfs current's root partition>
1861 <mount current's root partition on directory ${CURRENT_ROOT}>
1862 make installworld DESTDIR=${CURRENT_ROOT}
1863 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
1864 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
1865 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
1866 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
1867 <reboot into current>
1868 <do a "native" rebuild/install as described in the previous section>
1869 <maybe install compatibility libraries from ports/misc/compat*>
1873 To upgrade in-place from stable to current
1874 ----------------------------------------------
1875 <make sure you have good level 0 dumps>
1877 make kernel KERNCONF=YOUR_KERNEL_HERE [8]
1879 <reboot in single user> [3]
1886 Make sure that you've read the UPDATING file to understand the
1887 tweaks to various things you need. At this point in the life
1888 cycle of current, things change often and you are on your own
1889 to cope. The defaults can also change, so please read ALL of
1890 the UPDATING entries.
1892 Also, if you are tracking -current, you must be subscribed to
1893 freebsd-current@freebsd.org. Make sure that before you update
1894 your sources that you have read and understood all the recent
1895 messages there. If in doubt, please track -stable which has
1896 much fewer pitfalls.
1898 [1] If you have third party modules, such as vmware, you
1899 should disable them at this point so they don't crash your
1902 [3] From the bootblocks, boot -s, and then do
1907 adjkerntz -i # if CMOS is wall time
1908 Also, when doing a major release upgrade, it is required that
1909 you boot into single user mode to do the installworld.
1911 [4] Note: This step is non-optional. Failure to do this step
1912 can result in a significant reduction in the functionality of the
1913 system. Attempting to do it by hand is not recommended and those
1914 that pursue this avenue should read this file carefully, as well
1915 as the archives of freebsd-current and freebsd-hackers mailing lists
1916 for potential gotchas. The -U option is also useful to consider.
1917 See mergemaster(8) for more information.
1919 [5] Usually this step is a noop. However, from time to time
1920 you may need to do this if you get unknown user in the following
1921 step. It never hurts to do it all the time. You may need to
1922 install a new mergemaster (cd src/usr.sbin/mergemaster && make
1923 install) after the buildworld before this step if you last updated
1924 from [78]-stable or 9-stable before 20130430.
1926 [6] This only deletes old files and directories. Old libraries
1927 can be deleted by "make delete-old-libs", but you have to make
1928 sure that no program is using those libraries anymore.
1930 [8] In order to have a kernel that can run the 4.x binaries needed to
1931 do an installworld, you must include the COMPAT_FREEBSD4 option in
1932 your kernel. Failure to do so may leave you with a system that is
1933 hard to boot to recover. A similar kernel option COMPAT_FREEBSD5 is
1934 required to run the 5.x binaries on more recent kernels. And so on
1935 for COMPAT_FREEBSD6 and COMPAT_FREEBSD7.
1937 Make sure that you merge any new devices from GENERIC since the
1938 last time you updated your kernel config file.
1940 [9] When checking out sources, you must include the -P flag to have
1941 cvs prune empty directories.
1943 If CPUTYPE is defined in your /etc/make.conf, make sure to use the
1944 "?=" instead of the "=" assignment operator, so that buildworld can
1945 override the CPUTYPE if it needs to.
1947 MAKEOBJDIRPREFIX must be defined in an environment variable, and
1948 not on the command line, or in /etc/make.conf. buildworld will
1949 warn if it is improperly defined.
1952 This file contains a list, in reverse chronological order, of major
1953 breakages in tracking -current. It is not guaranteed to be a complete
1954 list of such breakages, and only contains entries since October 10, 2007.
1955 If you need to see UPDATING entries from before that date, you will need
1956 to fetch an UPDATING file from an older FreeBSD release.
1958 Copyright information:
1960 Copyright 1998-2009 M. Warner Losh. All Rights Reserved.
1962 Redistribution, publication, translation and use, with or without
1963 modification, in full or in part, in any form or format of this
1964 document are permitted without further permission from the author.
1966 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
1967 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
1968 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1969 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
1970 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
1971 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1972 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1973 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1974 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
1975 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1976 POSSIBILITY OF SUCH DAMAGE.
1978 Contact Warner Losh if you have any questions about your use of