1 Updating Information for FreeBSD stable/13 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 https://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 updating system packages
16 13.1-RELEASE-p2 FreeBSD-SA-22:13.zlib
17 FreeBSD-EN-22:20.tzdata
19 zlib heap buffer overflow [SA-22:13.zlib]
21 Timezone database information update [EN-22:20.tzdata]
24 13.1-RELEASE-p1 FreeBSD-SA-22:09.elf
26 FreeBSD-SA-22:12.lib9p
27 FreeBSD-EN-22:16.kqueue
29 FreeBSD-EN-22:19.pam_exec
31 Out of bounds read in elf_not_prpsinfo() [SA-22:09.elf]
33 Memory disclosure by stale virtual memory mapping [SA-22:11.vm]
35 Missing bounds check in 9p message handling [SA-22:12.lib9p]
37 kevent(2) timers fire too often [EN-22:16.kqueue]
39 Kernel memory corruption during SCSI error recovery [EN-22:17.cam]
41 NULL pointer dereference in pam_exec(8) [EN-22:19.pam_exec]
47 For 64-bit architectures the base system is now built with Position
48 Independent Executable (PIE) support enabled by default. It may be
49 disabled using the WITHOUT_PIE knob. A clean build is required.
52 The macros provided for the manipulation of CPU sets (e.g. CPU_AND)
53 have been modified to take 2 source arguments instead of only 1.
54 Externally maintained sources that use these macros will have to
55 be adapted. The FreeBSD version has been bumped to 1300524 to
59 Commit 18f5b477ee66 adds two arguments to VOP_ALLOCATE().
60 Normally changes to VOP calls are not MFC'd, but a
61 discussion on freebsd-current@ seemed to agree that
62 it was acceptable in this case, to fix the NFSv4.2 server.
63 Any out of source tree file system with a custom
64 VOP_ALLOCATE() call will need to be modified.
65 Bump __FreeBSD_version to 1300523 since the NFS modules need
66 to be rebuilt from sources.
69 Commit 6e8e261f0d4e changed the internal KAPI between the NFS
70 modules. As such, all the modules must be rebuilt from sources.
71 __FreeBSD_version has been bumped to 1300522.
74 Bump __FreeBSD_version to 1300521 after merging LinuxKPI and
75 net80211 changes in order to support building various wireless
76 drivers. This is to help other external consumers of LinuxKPI
77 and net80211 to deal accordingly.
80 Commit a599f9f7620b deleted the variable called nfs_maxcopyrange
81 from nfscommon.ko, since it no longer needs to be global. As such,
82 the other nfs modules must be rebuilt from up to date sources.
83 Bump __FreeBSD_version to 1300516 for this.
86 As of commit 622809b0868f OpenSSL no longer enables kernel TLS
87 by default. Users can enable kernel TLS via the "KTLS" SSL
88 option. This can be enabled globally by using a custom
89 OpenSSL config file via OPENSSL_CONF or via an
90 application-specific configuration option for applications
91 which permit setting SSL options via SSL_CONF_cmd(3).
94 Commits 9fb6e613373c and 9ec7dbf46b0a both changed the internal
95 KAPI between the NFS modules. Bump __FreeBSD_version to 1300514.
96 All NFS modules must be rebuilt from sources.
99 Commit b69019c14cd8 removes pf's DIOCGETSTATESNV ioctl.
100 As of be70c7a50d32 it is no longer used by userspace, but it does mean
101 users may not be able to enumerate pf states if they update the kernel
102 past c021ff986e2b without first updating userspace past be70c7a50d32.
105 Bump __FreeBSD_version to 1300512 after merging LinuxKPI, OFED,
106 net80211, and driver changes in order to support building
107 Intel wireless iwlwifi drivers. This is especially needed for
108 drm-kmod which needs updates after this.
111 The 20210707 awk update brought in a change in behavior. This has
112 been corrected as of d4d252c49976. Between these dates, if you
113 installed a new awk binary, you may not be able to build a new
114 kernel because the change in behavior affected the genoffset
115 script used to build the kernel. If you did update, the fix is
116 to update your sources past the above hash and do
119 % sudo -E make install
120 to enable building kernels again.
123 Commit 8a04edfdcbd2 changes the default minor version
124 used for NFSv4 mounts to the highest minor version supported
125 by the NFSv4 server. This default can be overridden by using
126 the "minorversion" mount option.
127 The consensus of a discussion on freebsd-current@ indicated
128 that this would be acceptable to do and would not be considered
132 awk has been updated to the latest one-true-awk version 20210215.
133 This contains a number of minor bug fixes.
136 Commit ca179c4d74f2/632e3f2f3a66 changed the package in which
137 the OpenSSL libraries and utilities are packaged.
138 It is recommended for pkgbase user to do:
139 pkg install -f FreeBSD-openssl
140 before pkg upgrade otherwise some dependencies might not be met
141 and pkg will stop working as libssl will not be present anymore
145 Commit 841006678745 changed the internal KAPI between the krpc
146 and nfsd modules. As such, they must both be rebuilt from
148 __FreeBSD_version is bumped to 1300510.
151 Commit 272f39942254 changed the internal KAPI between the
152 nscl.ko and nfscommon.ko modules, so they both need to be
153 rebuilt from sources.
156 Commit 5a45802b3c8c changed the internal KAPI between
157 the krpc and NFS. As such, the krpc, nfscommon and
158 nfscl modules must all be rebuilt from sources.
159 Without this patch, NFSv4.1/4.2 mounts should not
160 be done with the nfscbd(8) daemon running, to avoid
161 needing a working back channel for server->client RPCs.
164 Various LinuxKPI functionality was added which conflicts with DRM.
165 Please update your drm-kmod port to after the __FreeBSD_verison 1300139
169 The stable/13 branch has been created from main.
172 PC Card attachments for all devices have been removed. In the case of
173 wi and cmx, the entire drivers were removed because they were only
174 PC Card devices. FreeBSD_version 1300134 should be used for this
175 since it was bumped so recently.
178 Transport-independent parts of HID support have been split off the USB
179 code in to separate subsystem. Kernel configs which include one of
180 ums, ukbd, uhid, atp, wsp, wmt, uaudio, ugold or ucycom drivers should
181 be updated with adding of "device hid" line.
184 ncurses installation has been modified to only keep the widechar
185 enabled version. Incremental build is broken for that change, so it
186 requires a clean build.
189 The FreeBSD project has migrated from Subversion to Git. Temporary
190 instructions can be found at
191 https://github.com/bsdimp/freebsd-git-docs/blob/main/src-cvt.md
192 and other documents in that repo.
195 The services database has been updated to cover more of the basic
196 services expected in a modern system. The database is big enough
197 that it will cause issues in mergemaster in Releases previous to
198 12.2 and 11.3, or in very old current systems from before r358154.
201 Obsolete in-tree GDB 6.1.1 has been removed. GDB (including kgdb)
202 may be installed from ports or packages.
205 ping6 has been merged into ping. It can now be called as "ping -6".
206 See ping(8) for details.
209 Default value of net.add_addr_allfibs has been changed to 0.
210 If you have multi-fib configuration and rely on existence of all
211 interface routes in every fib, you need to set the above sysctl to 1.
213 The internal pre-processor in the calendar(1) program has been
214 extended to support more C pre-processor commands (e.g. #ifdef, #else,
215 and #undef) and to detect unbalanced conditional statements.
216 Error messages have been extended to include the filename and line
217 number if processing stops to help fixing malformed data files.
220 All the data files for the calendar(1) program, except calendar.freebsd,
221 have been moved to the deskutils/calendar-data port, much like the
222 jewish calendar entries were moved to deskutils/hebcal years ago. After
223 make delete-old-files, you need to install it to retain full
224 functionality. calendar(1) will issue a reminder for files it can't
228 LINT files are no longer generated. We now include the relevant NOTES
229 files. Note: This may cause conflicts with updating in some cases.
230 find sys -name LINT\* -delete
231 is suggested across this commit to remove the generated LINT files.
233 If you have tried to update with generated files there, the svn
234 command you want to un-auger the tree is
237 and then do the above find from the top level. Substitute 'amd64'
238 above with where the error message indicates a conflict.
241 OpenZFS support has been integrated. Do not upgrade root pools until
242 the loader is updated to support zstd. Furthermore, we caution against
243 'zpool upgrade' for the next few weeks. The change should be transparent
244 unless you want to use new features.
246 Not all "NO_CLEAN" build scenarios work across these changes. Many
247 scenarios have been tested and fixed, but rebuilding kernels without
248 rebuilding world may fail.
250 The ZFS cache file has moved from /boot to /etc to match the OpenZFS
251 upstream default. A fallback to /boot has been added for mountroot.
253 Pool auto import behavior at boot has been moved from the kernel module
254 to an explicit "zpool import -a" in one of the rc scripts enabled by
255 zfs_enable=YES. This means your non-root zpools won't auto import until
256 you upgrade your /etc/rc.d files.
259 The resume code now notifies devd with the 'kernel' system
260 rather than the old 'kern' subsystem to be consistent with
261 other use. The old notification will be created as well, but
262 will be removed prior to FreeBSD 14.0.
265 r362275 changed the internal API between the kernel RPC and the
266 NFS modules. As such, all the modules must be recompiled from
270 r364330 modified the internal API used between the NFS modules.
271 As such, all the NFS modules must be re-compiled from sources.
274 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
275 been upgraded to 11.0.0. Please see the 20141231 entry below for
276 information about prerequisites and upgrading, if you are not already
277 using clang 3.5.0 or higher.
280 r364092 modified the internal ABI used between the kernel NFS
281 modules. As such, all of these modules need to be rebuilt
282 from sources, so a version bump was done.
285 Makefile.inc has been updated to work around the issue documented in
286 20200729. It was a case where the optimization of using symbolic links
287 to point to binaries created a situation where we'd run new binaries
288 with old libraries starting midway through the installworld process.
291 r363679 has redefined some undefined behavior in regcomp(3); notably,
292 extraneous escapes of most ordinary characters will no longer be
293 accepted. An exp-run has identified all of the problems with this in
294 ports, but other non-ports software may need extra escapes removed to
295 continue to function.
297 Because of this change, installworld may encounter the following error
298 from rtld: Undefined symbol "regcomp@FBSD_1.6" -- It is imperative that
299 you do not halt installworld. Instead, let it run to completion (whether
300 successful or not) and run installworld once more.
303 A new implementation of bc and dc has been imported in r362681. This
304 implementation corrects non-conformant behavior of the previous bc
305 and adds GNU bc compatible options. It offers a number of extensions,
306 is much faster on large values, and has support for message catalogs
307 (a number of languages are already supported, contributions of further
308 languages welcome). The option WITHOUT_GH_BC can be used to build the
309 world with the previous versions of bc and dc.
312 r362639 changed the internal API used between the NFS kernel modules.
313 As such, they all need to be rebuilt from sources.
316 r362158 changed the arguments for VFS_CHECKEXP(). As such, any
317 out of tree file systems need to be modified and rebuilt.
318 Also, any file systems that are modules must be rebuilt.
321 read(2) of a directory fd is now rejected by default. root may
322 re-enable it for system root only on non-ZFS filesystems with the
323 security.bsd.allow_read_dir sysctl(8) MIB if
324 security.bsd.suser_enabled=1.
326 It may be advised to setup aliases for grep to default to `-d skip` if
327 commonly non-recursively grepping a list that includes directories and
328 the potential for the resulting stderr output is not tolerable. Example
329 aliases are now installed, commented out, in /root/.cshrc and
333 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
334 been upgraded to 10.0.1. Please see the 20141231 entry below for
335 information about prerequisites and upgrading, if you are not already
336 using clang 3.5.0 or higher.
339 Support for obsolete compilers has been removed from the build system.
340 Clang 6 and GCC 6.4 are the minimum supported versions.
343 closefrom(2) has been moved under COMPAT12, and replaced in libc with a
344 stub that calls close_range(2). If using a custom kernel configuration,
345 you may want to ensure that the COMPAT_FREEBSD12 option is included, as
346 a slightly older -CURRENT userland and older FreeBSD userlands may not
347 be functional without closefrom(2).
350 Upstream DTS from Linux 5.6 was merged and they now have the SID
351 and THS (Secure ID controller and THermal Sensor) node present.
352 The DTB overlays have now been removed from the tree for the H3/H5 and
353 A64 SoCs and the aw_sid and aw_thermal driver have been updated to
354 deal with upstream DTS. If you are using those overlays you need to
355 remove them from loader.conf and update the DTBs on the FAT partition.
358 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
359 been upgraded to 10.0.0. Please see the 20141231 entry below for
360 information about prerequisites and upgrading, if you are not already
361 using clang 3.5.0 or higher.
364 The amd(8) automount daemon has been removed from the source tree.
365 As of FreeBSD 10.1 autofs(5) is the preferred tool for automounting.
366 amd is still available in the sysutils/am-utils port.
369 Removed brooktree driver (bktr.4) from the tree.
372 The WITH_GPL_DTC option has been removed. The BSD-licenced device tree
373 compiler in usr.bin/dtc is used on all architectures which use dtc, and
374 the GPL dtc is available (if needed) from the sysutils/dtc port.
377 The WITHOUT_LLVM_LIBUNWIND option has been removed. LLVM's libunwind
378 is used by all supported CPU architectures.
381 GCC 4.2.1 has been removed from the tree. The WITH_GCC,
382 WITH_GCC_BOOTSTRAP, and WITH_GNUCXX options are no longer available.
383 Users who wish to build FreeBSD with GCC must use the external toolchain
387 ncurses has been updated to a newer version (6.2-20200215). Given the ABI
388 has changed, users will have to rebuild all the ports that are linked to
392 The size of struct vnet and the magic cookie have changed.
393 Users need to recompile libkvm and all modules using VIMAGE
394 together with their new kernel.
397 Defining the long deprecated NO_CTF, NO_DEBUG_FILES, NO_INSTALLLIB,
398 NO_MAN, NO_PROFILE, and NO_WARNS variables is now an error. Update
399 your Makefiles and scripts to define MK_<var>=no instead as required.
401 One exception to this is that program or library Makefiles should
402 define MAN to empty rather than setting MK_MAN=no.
405 Clang/LLVM is now the default compiler and LLD the default
409 make universe no longer uses GCC 4.2.1 on any architectures.
410 Architectures not supported by in-tree Clang/LLVM require an
411 external toolchain package.
414 GCC 4.2.1 is now not built by default, as part of the GCC 4.2.1
415 retirement plan. Specifically, the GCC, GCC_BOOTSTRAP, and GNUCXX
416 options default to off for all supported CPU architectures. As a
417 short-term transition aid they may be enabled via WITH_* options.
418 GCC 4.2.1 is expected to be removed from the tree on 2020-03-31.
421 Support for armv5 has been disconnected and is being removed. The
422 machine combination MACHINE=arm MACHINE_ARCH=arm is no longer valid.
423 You must now use a MACHINE_ARCH of armv6 or armv7. The default
424 MACHINE_ARCH for MACHINE=arm is now armv7.
427 Clang/LLVM is now the default compiler for all powerpc architectures.
428 LLD is now the default linker for powerpc64. The change for powerpc64
429 also includes a change to the ELFv2 ABI, incompatible with the existing
433 Kernel-loadable random(4) modules are no longer unloadable.
436 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
437 been upgraded to 9.0.1. Please see the 20141231 entry below for
438 information about prerequisites and upgrading, if you are not already
439 using clang 3.5.0 or higher.
442 r355677 has modified the internal interface used between the
443 NFS modules in the kernel. As such, they must all be upgraded
444 simultaneously. I will do a version bump for this.
447 The root certificates of the Mozilla CA Certificate Store have been
448 imported into the base system and can be managed with the certctl(8)
449 utility. If you have installed the security/ca_root_nss port or package
450 with the ETCSYMLINK option (the default), be advised that there may be
451 differences between those included in the port and those included in
452 base due to differences in nss branch used as well as general update
453 frequency. Note also that certctl(8) cannot manage certs in the
454 format used by the security/ca_root_nss port.
457 The amd(8) automount daemon has been disabled by default, and will be
458 removed in the future. As of FreeBSD 10.1 the autofs(5) is available
462 The nctgpio and wbwd drivers have been moved to the superio bus.
463 If you have one of these drivers in a kernel configuration, then
464 you should add device superio to it. If you use one of these drivers
465 as a module and you compile a custom set of modules, then you should
466 add superio to the set.
469 KPIs for network drivers to access interface addresses have changed.
470 Users need to recompile NIC driver modules together with kernel.
473 The net.link.tap.user_open sysctl no longer prevents user opening of
474 already created /dev/tapNN devices. Access is still controlled by
475 node permissions, just like tun devices. The net.link.tap.user_open
476 sysctl is now used only to allow users to perform devfs cloning of
477 tap devices, and the subsequent open may not succeed if the user is not
478 in the appropriate group. This sysctl may be deprecated/removed
479 completely in the future.
482 mips, powerpc, and sparc64 are no longer built as part of
483 universe / tinderbox unless MAKE_OBSOLETE_GCC is defined. If
484 not defined, mips, powerpc, and sparc64 builds will look for
485 the xtoolchain binaries and if installed use them for universe
486 builds. As llvm 9.0 becomes vetted for these architectures, they
487 will be removed from the list.
490 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
491 been upgraded to 9.0.0. Please see the 20141231 entry below for
492 information about prerequisites and upgrading, if you are not already
493 using clang 3.5.0 or higher.
496 The hpt27xx, hptmv, hptnr, and hptrr drivers have been removed from
497 GENERIC. They are available as modules and can be loaded by adding
498 to /boot/loader.conf hpt27xx_load="YES", hptmv_load="YES",
499 hptnr_load="YES", or hptrr_load="YES", respectively.
502 ntpd no longer by default locks its pages in memory, allowing them
503 to be paged out by the kernel. Use rlimit memlock to restore
504 historic BSD behaviour. For example, add "rlimit memlock 32"
505 to ntp.conf to lock up to 32 MB of ntpd address space in memory.
508 Several of ping6's options have been renamed for better consistency
509 with ping. If you use any of -ARWXaghmrtwx, you must update your
510 scripts. See ping6(8) for details.
513 The vfs.fusefs.sync_unmount and vfs.fusefs.init_backgrounded sysctls
514 and the "-o sync_unmount" and "-o init_backgrounded" mount options have
515 been removed from mount_fusefs(8). You can safely remove them from
516 your scripts, because they had no effect.
518 The vfs.fusefs.fix_broken_io, vfs.fusefs.sync_resize,
519 vfs.fusefs.refresh_size, vfs.fusefs.mmap_enable,
520 vfs.fusefs.reclaim_revoked, and vfs.fusefs.data_cache_invalidate
521 sysctls have been removed. If you felt the need to set any of them to
522 a non-default value, please tell asomers@FreeBSD.org why.
525 Default permissions on the /var/account/acct file (and copies of it
526 rotated by periodic daily scripts) are changed from 0644 to 0640
527 because the file contains sensitive information that should not be
528 world-readable. If the /var/account directory must be created by
529 rc.d/accounting, the mode used is now 0750. Admins who use the
530 accounting feature are encouraged to change the mode of an existing
531 /var/account directory to 0750 or 0700.
534 Entropy collection and the /dev/random device are no longer optional
535 components. The "device random" option has been removed.
536 Implementations of distilling algorithms can still be made loadable
537 with "options RANDOM_LOADABLE" (e.g., random_fortuna.ko).
540 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
541 been upgraded to 8.0.1. Please see the 20141231 entry below for
542 information about prerequisites and upgrading, if you are not already
543 using clang 3.5.0 or higher.
546 A fix was applied to i386 kernel modules to avoid panics with
547 dpcpu or vnet. Users need to recompile i386 kernel modules
548 having pcpu or vnet sections or they will refuse to load.
551 User-wired pages now have their own counter,
552 vm.stats.vm.v_user_wire_count. The vm.max_wired sysctl was renamed
553 to vm.max_user_wired and changed from an unsigned int to an unsigned
554 long. bhyve VMs wired with the -S are now subject to the user
555 wiring limit; the vm.max_user_wired sysctl may need to be tuned to
556 avoid running into the limit.
559 The IPSEC option has been removed from GENERIC. Users requiring
560 ipsec(4) must now load the ipsec(4) kernel module.
563 The tap(4) driver has been folded into tun(4), and the module has been
564 renamed to tuntap. You should update any kld_list="if_tap" or
565 kld_list="if_tun" entries in /etc/rc.conf, if_tap_load="YES" or
566 if_tun_load="YES" entries in /boot/loader.conf to load the if_tuntap
567 module instead, and "device tap" or "device tun" entries in kernel
568 config files to select the tuntap device instead.
571 The following knobs have been added related to tradeoffs between
572 safe use of the random device and availability in the absence of
575 kern.random.initial_seeding.bypass_before_seeding: tunable; set
576 non-zero to bypass the random device prior to seeding, or zero to
577 block random requests until the random device is initially seeded.
578 For now, set to 1 (unsafe) by default to restore pre-r346250 boot
579 availability properties.
581 kern.random.initial_seeding.read_random_bypassed_before_seeding:
582 read-only diagnostic sysctl that is set when bypass is enabled and
583 read_random(9) is bypassed, to enable programmatic handling of this
584 initial condition, if desired.
586 kern.random.initial_seeding.arc4random_bypassed_before_seeding:
587 Similar to the above, but for for arc4random(9) initial seeding.
589 kern.random.initial_seeding.disable_bypass_warnings: tunable; set
590 non-zero to disable warnings in dmesg when the same conditions are
591 met as for the diagnostic sysctls above. Defaults to zero, i.e.,
592 produce warnings in dmesg when the conditions are met.
595 The loadable random module KPI has changed; the random_infra_init()
596 routine now requires a 3rd function pointer for a bool (*)(void)
597 method that returns true if the random device is seeded (and
598 therefore unblocked).
601 r345895 reverts r320698. This implies that an nfsuserd(8) daemon
602 built from head sources between r320757 (July 6, 2017) and
603 r338192 (Aug. 22, 2018) will not work unless the "-use-udpsock"
604 is added to the command line.
605 nfsuserd daemons built from head sources that are post-r338192 are
606 not affected and should continue to work.
609 The fuse(4) module has been renamed to fusefs(4) for consistency with
610 other filesystems. You should update any kld_load="fuse" entries in
611 /etc/rc.conf, fuse_load="YES" entries in /boot/loader.conf, and
612 "options FUSE" entries in kernel config files.
615 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
616 8.0.0. Please see the 20141231 entry below for information about
617 prerequisites and upgrading, if you are not already using clang 3.5.0
621 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
622 compiled into your custom kernel, add 'device xz' statement to the
626 drm and drm2 have been removed from the tree. Please see
627 https://wiki.freebsd.org/Graphics for the latest information on
628 migrating to the drm ports.
631 Iflib is no longer unconditionally compiled into the kernel. Drivers
632 using iflib and statically compiled into the kernel, now require
633 the 'device iflib' config option. For the same drivers loaded as
634 modules on kernels not having 'device iflib', the iflib.ko module
635 is loaded automatically.
638 The IEEE80211_AMPDU_AGE and AH_SUPPORT_AR5416 kernel configuration
639 options no longer exist since r343219 and r343427 respectively;
640 nothing uses them, so they should be just removed from custom
644 r342635 changes the way efibootmgr(8) works by requiring users to add
645 the -b (bootnum) parameter for commands where the bootnum was previously
646 specified with each option. For example 'efibootmgr -B 0001' is now
647 'efibootmgr -B -b 0001'.
650 r342286 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
651 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
652 servers that have vfs.nfsd.nfs_privport set will only allow mounts
653 from clients using a reserved port#. Since both the FreeBSD and Linux
654 NFSv4 clients use reserved port#s by default, this should not affect
658 The XLP config has been removed. We can't support 64-bit atomics in this
659 kernel because it is running in 32-bit mode. XLP users must transition
660 to running a 64-bit kernel (XLP64 or XLPN32).
662 The mips GXEMUL support has been removed from FreeBSD. MALTA* + qemu is
663 the preferred emulator today and we don't need two different ones.
665 The old sibyte / swarm / Broadcom BCM1250 support has been
666 removed from the mips port.
669 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
670 7.0.1. Please see the 20141231 entry below for information about
671 prerequisites and upgrading, if you are not already using clang 3.5.0
675 Remove the timed and netdate programs from the base tree. Setting
676 the time with these daemons has been obsolete for over a decade.
679 On amd64, arm64 and armv7 (architectures that install LLVM's ld.lld
680 linker as /usr/bin/ld) GNU ld is no longer installed as ld.bfd, as
681 it produces broken binaries when ifuncs are in use. Users needing
682 GNU ld should install the binutils port or package.
685 The BSD crtbegin and crtend code has been enabled by default. It has
686 had extensive testing on amd64, arm64, and i386. It can be disabled
687 by building a world with -DWITHOUT_BSD_CRTBEGIN.
690 The set of CTM commands (ctm, ctm_smail, ctm_rmail, ctm_dequeue)
691 has been converted to a port (misc/ctm) and will be removed from
692 FreeBSD-13. It is available as a package (ctm) for all supported
696 The default newsyslog.conf(5) file has been changed to only include
697 files in /etc/newsyslog.conf.d/ and /usr/local/etc/newsyslog.conf.d/ if
698 the filenames end in '.conf' and do not begin with a '.'.
700 You should check the configuration files in these two directories match
701 this naming convention. You can verify which configuration files are
702 being included using the command:
706 Ports for the DRM modules have been simplified. Now, amd64 users should
707 just install the drm-kmod port. All others should install
710 Graphics hardware that's newer than about 2010 usually works with
711 drm-kmod. For hardware older than 2013, however, some users will need
712 to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older
713 than 2008 usually only works in drm-legacy-kmod. The graphics team can
714 only commit to hardware made since 2013 due to the complexity of the
715 market and difficulty to test all the older cards effectively. If you
716 have hardware supported by drm-kmod, you are strongly encouraged to use
717 that as you will get better support.
719 Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined
720 elsewhere, the drm and drm2 modules will be eliminated from the src base
721 soon (with a limited exception for arm). Please update to the package
722 asap and report any issues to x11@freebsd.org.
724 Generally, anybody using the drm*-kmod packages should add
725 WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty
726 cross-threading surprises, especially with automatic driver
727 loading from X11 startup. These will become the defaults in 13-current
731 The ixlv(4) driver has been renamed to iavf(4). As a consequence,
732 custom kernel and module loading configuration files must be updated
733 accordingly. Moreover, interfaces previous presented as ixlvN to the
734 system are now exposed as iavfN and network configuration files must
735 be adjusted as necessary.
738 OpenSSL has been updated to version 1.1.1. This update included
739 additional various API changes throughout the base system. It is
740 important to rebuild third-party software after upgrading. The value
741 of __FreeBSD_version has been bumped accordingly.
744 The legacy DRM modules and drivers have now been added to the loader's
745 module blacklist, in favor of loading them with kld_list in rc.conf(5).
746 The module blacklist may be overridden with the loader.conf(5)
747 'module_blacklist' variable, but loading them via rc.conf(5) is strongly
751 The cam(4) based nda(4) driver will be used over nvd(4) by default on
752 powerpc64. You may set 'options NVME_USE_NVD=1' in your kernel conf or
753 loader tunable 'hw.nvme.use_nvd=1' if you wish to use the existing
754 driver. Make sure to edit /boot/etc/kboot.conf and fstab to use the
758 Reproducible build mode is now on by default, in preparation for
759 FreeBSD 12.0. This eliminates build metadata such as the user,
760 host, and time from the kernel (and uname), unless the working tree
761 corresponds to a modified checkout from a version control system.
762 The previous behavior can be obtained by setting the /etc/src.conf
763 knob WITHOUT_REPRODUCIBLE_BUILD.
766 The Yarrow CSPRNG has been removed from the kernel as it has not been
767 supported by its designers since at least 2003. Fortuna has been the
768 default since FreeBSD-11.
771 devctl freeze/thaw have gone into the tree, the rc scripts have been
772 updated to use them and devmatch has been changed. You should update
773 kernel, userland and rc scripts all at the same time.
776 The default interpreter has been switched from 4th to Lua.
777 LOADER_DEFAULT_INTERP, documented in build(7), will override the default
778 interpreter. If you have custom FORTH code you will need to set
779 LOADER_DEFAULT_INTERP=4th (valid values are 4th, lua or simp) in
780 src.conf for the build. This will create default hard links between
781 loader and loader_4th instead of loader and loader_lua, the new default.
782 If you are using UEFI it will create the proper hard link to loader.efi.
784 bhyve uses userboot.so. It remains 4th-only until some issues are solved
785 regarding coexisting with multiple versions of FreeBSD are resolved.
788 ls(1) now respects the COLORTERM environment variable used in other
789 systems and software to indicate that a colored terminal is both
790 supported and desired. If ls(1) is suddenly emitting colors, they may
791 be disabled again by either removing the unwanted COLORTERM from your
792 environment, or using `ls --color=never`. The ls(1) specific CLICOLOR
793 may not be observed in a future release.
796 The default pager for most commands has been changed to "less". To
797 restore the old behavior, set PAGER="more" and MANPAGER="more -s" in
801 The jedec_ts(4) driver has been removed. A superset of its functionality
802 is available in the jedec_dimm(4) driver, and the manpage for that
803 driver includes migration instructions. If you have "device jedec_ts"
804 in your kernel configuration file, it must be removed.
807 amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default.
808 This should have no effect if the kernel is booted via BIOS/legacy boot.
809 EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system
810 has a buggy firmware that prevents a successful boot due to use of
814 Atmel AT91RM9200 and AT91SAM9, Cavium CNS 11xx and XScale
815 support has been removed from the tree. These ports were
816 obsolete and/or known to be broken for many years.
819 loader.efi has been augmented to participate more fully in the
820 UEFI boot manager protocol. loader.efi will now look at the
821 BootXXXX environment variable to determine if a specific kernel
822 or root partition was specified. XXXX is derived from BootCurrent.
823 efibootmgr(8) manages these standard UEFI variables.
826 zfsloader's functionality has now been folded into loader.
827 zfsloader is no longer necessary once you've updated your
828 boot blocks. For a transition period, we will install a
829 hardlink for zfsloader to loader to allow a smooth transition
830 until the boot blocks can be updated (hard link because old
831 zfs boot blocks don't understand symlinks).
834 ARM64 now have efifb support, if you want to have serial console
835 on your arm64 board when an screen is connected and the bootloader
836 setup a frame buffer for us to use, just add :
840 For Raspberry Pi 3 (RPI) users, this is needed even if you don't have
841 an screen connected as the firmware will setup a frame buffer are that
842 u-boot will expose as an EFI frame buffer.
845 New uid:gid added, ntpd:ntpd (123:123). Be sure to run mergemaster
846 or take steps to update /etc/passwd before doing installworld on
847 existing systems. Do not skip the "mergemaster -Fp" step before
848 installworld, as described in the update procedures near the bottom
849 of this document. Also, rc.d/ntpd now starts ntpd(8) as user ntpd
850 if the new mac_ntpd(4) policy is available, unless ntpd_flags or
851 the ntp config file contain options that change file/dir locations.
852 When such options (e.g., "statsdir" or "crypto") are used, ntpd can
853 still be run as non-root by setting ntpd_user=ntpd in rc.conf, after
854 taking steps to ensure that all required files/dirs are accessible
858 Big endian arm support has been removed.
861 The static environment setup in kernel configs is no longer mutually
862 exclusive with the loader(8) environment by default. In order to
863 restore the previous default behavior of disabling the loader(8)
864 environment if a static environment is present, you must specify
865 loader_env.disabled=1 in the static environment.
868 The ABI of syscalls used by management tools like sockstat and
869 netstat has been broken to allow 32-bit binaries to work on
870 64-bit kernels without modification. These programs will need
871 to match the kernel in order to function. External programs may
872 require minor modifications to accommodate a change of type in
873 structures from pointers to 64-bit virtual addresses.
876 On i386 and amd64 atomics are now inlined. Out of tree modules using
877 atomics will need to be rebuilt.
880 The '%I' format in the kern.corefile sysctl limits the number of
881 core files that a process can generate to the number stored in the
882 debug.ncores sysctl. The '%I' format is replaced by the single digit
883 index. Previously, if all indexes were taken the kernel would overwrite
884 only a core file with the highest index in a filename.
885 Currently the system will create a new core file if there is a free
886 index or if all slots are taken it will overwrite the oldest one.
889 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
890 6.0.1. Please see the 20141231 entry below for information about
891 prerequisites and upgrading, if you are not already using clang 3.5.0
895 r335753 introduced a new quoting method. However, etc/devd/devmatch.conf
896 needed to be changed to work with it. This change was made with r335763
897 and requires a mergemaster / etcupdate / etc to update the installed
901 r334930 changed the interface between the NFS modules, so they all
902 need to be rebuilt. r335018 did a __FreeBSD_version bump for this.
905 As of r334391 lld is the default amd64 system linker; it is installed
906 as /usr/bin/ld. Kernel build workarounds (see 20180510 entry) are no
910 The kernel / userland interface for devinfo changed, so you'll
911 need a new kernel and userland as a pair for it to work (rebuilding
912 lib/libdevinfo is all that's required). devinfo and devmatch will
913 not work, but everything else will when there's a mismatch.
916 The on-disk format for hwpmc callchain records has changed to include
917 threadid corresponding to a given record. This changes the field offsets
918 and thus requires that libpmcstat be rebuilt before using a kernel
922 The vxge(4) driver has been removed. This driver was introduced into
923 HEAD one week before the Exar left the Ethernet market and is not
924 known to be used. If you have device vxge in your kernel config file
928 The amd64 kernel now requires a ld that supports ifunc to produce a
929 working kernel, either lld or a newer binutils. lld is built by default
930 on amd64, and the 'buildkernel' target uses it automatically. However,
931 it is not the default linker, so building the kernel the traditional
932 way requires LD=ld.lld on the command line (or LD=/usr/local/bin/ld for
933 binutils port/package). lld will soon be default, and this requirement
936 NOTE: As of r334391 lld is the default system linker on amd64, and no
937 workaround is necessary.
940 The nxge(4) driver has been removed. This driver was for PCI-X 10g
941 cards made by s2io/Neterion. The company was acquired by Exar and
942 no longer sells or supports Ethernet products. If you have device
943 nxge in your kernel config file it must be removed.
946 The tz database (tzdb) has been updated to 2018e. This version more
947 correctly models time stamps in time zones with negative DST such as
948 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
949 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
950 time zone abbreviations and the tm_isdst flag.
953 The ixgb(4) driver has been removed. This driver was for an early and
954 uncommon legacy PCI 10GbE for a single ASIC, Intel 82597EX. Intel
955 quickly shifted to the long lived ixgbe family. If you have device
956 ixgb in your kernel config file it must be removed.
959 The lmc(4) driver has been removed. This was a WAN interface
960 card that was already reportedly rare in 2003, and had an ambiguous
961 license. If you have device lmc in your kernel config file it must
965 Support for Arcnet networks has been removed. If you have device
966 arcnet or device cm in your kernel config file they must be
970 Support for FDDI networks has been removed. If you have device
971 fddi or device fpa in your kernel config file they must be
975 In addition to supporting RFC 3164 formatted messages, the
976 syslogd(8) service is now capable of parsing RFC 5424 formatted
977 log messages. The main benefit of using RFC 5424 is that clients
978 may now send log messages with timestamps containing year numbers,
979 microseconds and time zone offsets.
981 Similarly, the syslog(3) C library function has been altered to
982 send RFC 5424 formatted messages to the local system logging
983 daemon. On systems using syslogd(8), this change should have no
984 negative impact, as long as syslogd(8) and the C library are
985 updated at the same time. On systems using a different system
986 logging daemon, it may be necessary to make configuration
987 adjustments, depending on the software used.
989 When using syslog-ng, add the 'syslog-protocol' flag to local
990 input sources to enable parsing of RFC 5424 formatted messages:
993 unix-dgram("/var/run/log" flags(syslog-protocol));
996 When using rsyslog, disable the 'SysSock.UseSpecialParser' option
997 of the 'imuxsock' module to let messages be processed by the
998 regular RFC 3164/5424 parsing pipeline:
1000 module(load="imuxsock" SysSock.UseSpecialParser="off")
1002 Do note that these changes only affect communication between local
1003 applications and syslogd(8). The format that syslogd(8) uses to
1004 store messages on disk or forward messages to other systems
1005 remains unchanged. syslogd(8) still uses RFC 3164 for these
1006 purposes. Options to customize this behaviour will be added in the
1007 future. Utilities that process log files stored in /var/log are
1008 thus expected to continue to function as before.
1010 __FreeBSD_version has been incremented to 1200061 to denote this
1014 Support for token ring networks has been removed. If you
1015 have "device token" in your kernel config you should remove
1016 it. No device drivers supported token ring.
1019 makefs was modified to be able to tag ISO9660 El Torito boot catalog
1020 entries as EFI instead of overloading the i386 tag as done previously.
1021 The amd64 mkisoimages.sh script used to build amd64 ISO images for
1022 release was updated to use this. This may mean that makefs must be
1023 updated before "make cdrom" can be run in the release directory. This
1024 should be as simple as:
1026 $ cd $SRCDIR/usr.sbin/makefs
1027 $ make depend all install
1030 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for
1031 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf.
1032 Co-existence for the transition period will come shortly. Booting is a
1033 complex environment and test coverage for Lua-enabled loaders has been
1034 thin, so it would be prudent to assume it might not work and make
1035 provisions for backup boot methods.
1038 devmatch functionality has been turned on in devd. It will automatically
1039 load drivers for unattached devices. This may cause unexpected drivers
1040 to be loaded. Please report any problems to current@ and
1044 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
1045 6.0.0. Please see the 20141231 entry below for information about
1046 prerequisites and upgrading, if you are not already using clang 3.5.0
1050 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker.
1051 This means it is used to link the kernel and userland libraries and
1052 executables, but is not yet installed as /usr/bin/ld by default.
1054 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set
1055 WITHOUT_LLD_BOOTSTRAP=yes
1058 On i386, pmtimer has been removed. Its functionality has been folded
1059 into apm. It was a no-op on ACPI in current for a while now (but was
1060 still needed on i386 in FreeBSD 11 and earlier). Users may need to
1061 remove it from kernel config files.
1064 The use of RSS hash from the network card aka flowid has been
1065 disabled by default for lagg(4) as it's currently incompatible with
1066 the lacp and loadbalance protocols.
1068 This can be re-enabled by setting the following in loader.conf:
1069 net.link.lagg.default_use_flowid="1"
1072 The SW_WATCHDOG option is no longer necessary to enable the
1073 hardclock-based software watchdog if no hardware watchdog is
1074 configured. As before, SW_WATCHDOG will cause the software
1075 watchdog to be enabled even if a hardware watchdog is configured.
1078 r326887 fixes the issue described in the 20171214 UPDATING entry.
1079 r326888 flips the switch back to building GELI support always.
1082 r362593 broke ZFS + GELI support for reasons unknown. However,
1083 it also broke ZFS support generally, so GELI has been turned off
1084 by default as the lesser evil in r326857. If you boot off ZFS and/or
1085 GELI, it might not be a good time to update.
1088 PowerPC users must update loader(8) by rebuilding world before
1089 installing a new kernel, as the protocol connecting them has
1090 changed. Without the update, loader metadata will not be passed
1091 successfully to the kernel and users will have to enter their
1092 root partition at the kernel mountroot prompt to continue booting.
1093 Newer versions of loader can boot old kernels without issue.
1096 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to
1097 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
1098 to WITH/OUT_LOADER_GELI.
1101 The naive and non-compliant support of posix_fallocate(2) in ZFS
1102 has been removed as of r325320. The system call now returns EINVAL
1103 when used on a ZFS file. Although the new behavior complies with the
1104 standard, some consumers are not prepared to cope with it.
1105 One known victim is lld prior to r325420.
1108 Building in a FreeBSD src checkout will automatically create object
1109 directories now rather than store files in the current directory if
1110 'make obj' was not ran. Calling 'make obj' is no longer necessary.
1111 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in
1112 /etc/src-env.conf (not /etc/src.conf), or passing the option in the
1116 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native
1117 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified
1118 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old
1119 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf,
1120 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building.
1121 The UNIFIED_OBJDIR option is a transitional feature that will be
1122 removed for 12.0 release; please migrate to the new format for any
1123 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather
1124 than hardcoding paths.
1127 The native-xtools target no longer installs the files by default to the
1128 OBJDIR. Use the native-xtools-install target with a DESTDIR to install
1129 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin.
1132 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT
1133 options are changing from controlling the build if defined / undefined
1134 to controlling the build with explicit 'yes' or 'no' values. They will
1135 shift to WITH/WITHOUT options to match other options in the system.
1138 libstand has turned into a private library for sys/boot use only.
1139 It is no longer supported as a public interface outside of sys/boot.
1142 The arm port has split armv6 into armv6 and armv7. armv7 is now
1143 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system
1144 and are running a kernel from before r324363, you will need to add
1145 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build.
1148 When building multiple kernels using KERNCONF, non-existent KERNCONF
1149 files will produce an error and buildkernel will fail. Previously
1150 missing KERNCONF files silently failed giving no indication as to
1151 why, only to subsequently discover during installkernel that the
1152 desired kernel was never built in the first place.
1155 The default serial number format for CTL LUNs has changed. This will
1156 affect users who use /dev/diskid/* device nodes, or whose FibreChannel
1157 or iSCSI clients care about their LUNs' serial numbers. Users who
1158 require serial number stability should hardcode serial numbers in
1162 For 32-bit arm compiled for hard-float support, soft-floating point
1163 binaries now always get their shared libraries from
1164 LD_SOFT_LIBRARY_PATH (in the past, this was only used if
1165 /usr/libsoft also existed). Only users with a hard-float ld.so, but
1166 soft-float everything else should be affected.
1169 The geli password typed at boot is now hidden. To restore the previous
1170 behavior, see geli(8) for configuration options.
1173 Move PMTUD blackhole counters to TCPSTATS and remove them from bare
1174 sysctl values. Minor nit, but requires a rebuild of both world/kernel
1178 "make check" behavior (made in ^/head@r295380) has been changed to
1179 execute from a limited sandbox, as opposed to executing from
1183 - The "beforecheck" and "aftercheck" targets are now specified.
1184 - ${CHECKDIR} (added in commit noted above) has been removed.
1185 - Legacy behavior can be enabled by setting
1186 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment.
1188 If the limited sandbox mode is enabled, "make check" will execute
1189 "make distribution", then install, execute the tests, and clean up the
1190 sandbox if successful.
1192 The "make distribution" and "make install" targets are typically run as
1193 root to set appropriate permissions and ownership at installation time.
1194 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the
1195 environment if executing "make check" with limited sandbox mode using
1196 an unprivileged user.
1199 Since the switch to GPT disk labels, fsck for UFS/FFS has been
1200 unable to automatically find alternate superblocks. As of r322297,
1201 the information needed to find alternate superblocks has been
1202 moved to the end of the area reserved for the boot block.
1203 Filesystems created with a newfs of this vintage or later
1204 will create the recovery information. If you have a filesystem
1205 created prior to this change and wish to have a recovery block
1206 created for your filesystem, you can do so by running fsck in
1207 foreground mode (i.e., do not use the -p or -y options). As it
1208 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
1209 to which you should answer yes.
1212 As of r321665, an NFSv4 server configuration that services
1213 Kerberos mounts or clients that do not support the uid/gid in
1214 owner/owner_group string capability, must explicitly enable
1215 the nfsuserd daemon by adding nfsuserd_enable="YES" to the
1216 machine's /etc/rc.conf file.
1219 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
1220 Please see the 20141231 entry below for information about prerequisites
1221 and upgrading, if you are not already using clang 3.5.0 or higher.
1224 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the
1225 r-commands (rlogin, rsh, etc.) to be built with the base system.
1228 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is
1229 a very major ABI incompatible change, so users of FreeBSD/powerpc must
1230 be careful when performing source upgrades. It is best to run
1231 'make installworld' from an alternate root system, either a live
1232 CD/memory stick, or a temporary root partition. Additionally, all ports
1233 must be recompiled. powerpc64 is largely unaffected, except in the case
1234 of 32-bit compatibility. All 32-bit binaries will be affected.
1237 Forward compatibility for the "ino64" project have been committed. This
1238 will allow most new binaries to run on older kernels in a limited
1239 fashion. This prevents many of the common foot-shooting actions in the
1240 upgrade as well as the limited ability to roll back the kernel across
1241 the ino64 upgrade. Complicated use cases may not work properly, though
1242 enough simpler ones work to allow recovery in most situations.
1245 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC
1246 if you require the GPL compiler.
1249 The internal ABI used for communication between the NFS kernel modules
1250 was changed by r320085, so __FreeBSD_version was bumped to
1251 ensure all the NFS related modules are updated together.
1254 The ABI of struct event was changed by extending the data
1255 member to 64bit and adding ext fields. For upgrade, same
1256 precautions as for the entry 20170523 "ino64" must be
1260 The GNU roff toolchain has been removed from base. To render manpages
1261 which are not supported by mandoc(1), man(1) can fallback on GNU roff
1262 from ports (and recommends to install it).
1263 To render roff(7) documents, consider using GNU roff from ports or the
1264 heirloom doctools roff toolchain from ports via pkg install groff or
1265 via pkg install heirloom-doctools.
1268 The ath(4) and ath_hal(4) modules now build piecemeal to allow for
1269 smaller runtime footprint builds. This is useful for embedded systems
1270 which only require one chipset support.
1272 If you load it as a module, make sure this is in /boot/loader.conf:
1276 This will load the HAL, all chip/RF backends and if_ath_pci.
1277 If you have if_ath_pci in /boot/loader.conf, ensure it is after
1278 if_ath or it will not load any HAL chipset support.
1280 If you want to selectively load things (eg on ye cheape ARM/MIPS
1281 platforms where RAM is at a premium) you should:
1284 * load the chip modules in question
1285 * load ath_rate, ath_dfs
1287 * load if_ath_pci and/or if_ath_ahb depending upon your particular
1288 bus bind type - this is where probe/attach is done.
1290 For further comments/feedback, poke adrian@ .
1293 The "ino64" 64-bit inode project has been committed, which extends
1294 a number of types to 64 bits. Upgrading in place requires care and
1295 adherence to the documented upgrade procedure.
1297 If using a custom kernel configuration ensure that the
1298 COMPAT_FREEBSD11 option is included (as during the upgrade the
1299 system will be running the ino64 kernel with the existing world).
1301 For the safest in-place upgrade begin by removing previous build
1302 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the full
1303 procedure documented below under the heading "To rebuild everything and
1304 install it on the current system." Specifically, a reboot is required
1305 after installing the new kernel before installing world. While an
1306 installworld normally works by accident from multiuser after rebooting
1307 the proper kernel, there are many cases where this will fail across this
1308 upgrade and installworld from single user is required.
1311 The NATM framework including the en(4), fatm(4), hatm(4), and
1312 patm(4) devices has been removed. Consumers should plan a
1313 migration before the end-of-life date for FreeBSD 11.
1316 GNU diff has been replaced by a BSD licensed diff. Some features of GNU
1317 diff has not been implemented, if those are needed a newer version of
1318 GNU diff is available via the diffutils package under the gdiff name.
1321 As of r316810 for ipfilter, keep frags is no longer assumed when
1322 keep state is specified in a rule. r316810 aligns ipfilter with
1323 documentation in man pages separating keep frags from keep state.
1324 This allows keep state to be specified without forcing keep frags
1325 and allows keep frags to be specified independently of keep state.
1326 To maintain previous behaviour, also specify keep frags with
1327 keep state (as documented in ipf.conf.5).
1330 arm64 builds now use the base system LLD 4.0.0 linker by default,
1331 instead of requiring that the aarch64-binutils port or package be
1332 installed. To continue using aarch64-binutils, set
1333 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
1336 The UDP optimization in entry 20160818 that added the sysctl
1337 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast
1338 packets will no longer be treated as L3 broadcast packets.
1341 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
1342 use any explicitly assigned loopback address available in the jail
1343 instead of using the first assigned address of the jail.
1346 The ctl.ko module no longer implements the iSCSI target frontend:
1347 cfiscsi.ko does instead.
1349 If building cfiscsi.ko as a kernel module, the module can be loaded
1350 via one of the following methods:
1351 - `cfiscsi_load="YES"` in loader.conf(5).
1352 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
1353 - ctladm(8)/ctld(8), when compiled with iSCSI support
1354 (`WITH_ISCSI=yes` in src.conf(5))
1356 Please see cfiscsi(4) for more details.
1359 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
1360 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
1361 same source (previously, the dependency of mmcsd.ko on mmc.ko was
1362 missing, but mmcsd.ko now will refuse to load if it is incompatible
1366 The syntax of ipfw(8) named states was changed to avoid ambiguity.
1367 If you have used named states in the firewall rules, you need to modify
1368 them after installworld and before rebooting. Now named states must
1369 be prefixed with colon.
1372 The old drm (sys/dev/drm/) drivers for i915 and radeon have been
1373 removed as the userland we provide cannot use them. The KMS version
1374 (sys/dev/drm2) supports the same hardware.
1377 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
1378 Please see the 20141231 entry below for information about prerequisites
1379 and upgrading, if you are not already using clang 3.5.0 or higher.
1382 The code that provides support for ZFS .zfs/ directory functionality
1383 has been reimplemented. It's not possible now to create a snapshot
1384 by mkdir under .zfs/snapshot/. That should be the only user visible
1388 EISA bus support has been removed. The WITH_EISA option is no longer
1392 MCA bus support has been removed.
1395 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed
1396 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC.
1399 The EM_MULTIQUEUE kernel configuration option is deprecated now that
1400 the em(4) driver conforms to iflib specifications.
1403 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via
1404 IFLIB. If you have a custom kernel configuration that excludes em(4)
1405 but you use igb(4), you need to re-add em(4) to your custom
1409 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
1410 Please see the 20141231 entry below for information about prerequisites
1411 and upgrading, if you are not already using clang 3.5.0 or higher.
1414 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
1415 Please see the 20141231 entry below for information about prerequisites
1416 and upgrading, if you are not already using clang 3.5.0 or higher.
1419 The layout of the pmap structure has changed for powerpc to put the pmap
1420 statistics at the front for all CPU variations. libkvm(3) and all tools
1421 that link against it need to be recompiled.
1424 isl(4) and cyapa(4) drivers now require a new driver,
1425 chromebook_platform(4), to work properly on Chromebook-class hardware.
1426 On other types of hardware the drivers may need to be configured using
1427 device hints. Please see the corresponding manual pages for details.
1430 The urtwn(4) driver was merged into rtwn(4) and now consists of
1431 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific
1433 Also, firmware for RTL8188CE was renamed due to possible name
1434 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B))
1437 GNU rcs has been removed from base. It is available as packages:
1438 - rcs: Latest GPLv3 GNU rcs version.
1439 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was
1443 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control
1444 modules now requires that the kernel configuration contain the
1445 TCP_HHOOK option. (This option is included in the GENERIC kernel.)
1448 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired.
1449 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy.
1452 Relocatable object files with the extension of .So have been renamed
1453 to use an extension of .pico instead. The purpose of this change is
1454 to avoid a name clash with shared libraries on case-insensitive file
1455 systems. On those file systems, foo.So is the same file as foo.so.
1458 GNU rcs has been turned off by default. It can (temporarily) be built
1459 again by adding WITH_RCS knob in src.conf.
1460 Otherwise, GNU rcs is available from packages:
1461 - rcs: Latest GPLv3 GNU rcs version.
1462 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base.
1465 The backup_uses_rcs functionality has been removed from rc.subr.
1468 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into
1469 two separate components, QUEUE_MACRO_DEBUG_TRACE and
1470 QUEUE_MACRO_DEBUG_TRASH. Define both for the original
1471 QUEUE_MACRO_DEBUG behavior.
1474 r304787 changed some ioctl interfaces between the iSCSI userspace
1475 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be
1476 rebuilt to work with new kernels. __FreeBSD_version has been bumped
1480 The UDP receive code has been updated to only treat incoming UDP
1481 packets that were addressed to an L2 broadcast address as L3
1482 broadcast packets. It is not expected that this will affect any
1483 standards-conforming UDP application. The new behaviour can be
1484 disabled by setting the sysctl net.inet.udp.require_l2_bcast to
1488 Remove the openbsd_poll system call.
1489 __FreeBSD_version has been bumped because of this.
1492 The stable/11 branch has been created from head@r302406.
1495 The libc stub for the pipe(2) system call has been replaced with
1496 a wrapper that calls the pipe2(2) system call and the pipe(2)
1497 system call is now only implemented by the kernels that include
1498 "options COMPAT_FREEBSD10" in their config file (this is the
1499 default). Users should ensure that this option is enabled in
1500 their kernel or upgrade userspace to r302092 before upgrading their
1504 CAM will now strip leading spaces from SCSI disks' serial numbers.
1505 This will affect users who create UFS filesystems on SCSI disks using
1506 those disk's diskid device nodes. For example, if /etc/fstab
1507 previously contained a line like
1508 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
1509 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
1510 transforms like gmirror may also be affected. ZFS users should
1514 The bitstring(3) API has been updated with new functionality and
1515 improved performance. But it is binary-incompatible with the old API.
1516 Objects built with the new headers may not be linked against objects
1517 built with the old headers.
1520 The brk and sbrk functions have been removed from libc on arm64.
1521 Binutils from ports has been updated to not link to these
1522 functions and should be updated to the latest version before
1523 installing a new libc.
1526 The armv6 port now defaults to hard float ABI. Limited support
1527 for running both hardfloat and soft float on the same system
1528 is available using the libraries installed with -DWITH_LIBSOFT.
1529 This has only been tested as an upgrade path for installworld
1530 and packages may fail or need manual intervention to run. New
1531 packages will be needed.
1533 To update an existing self-hosted armv6hf system, you must add
1534 TARGET_ARCH=armv6 on the make command line for both the build
1535 and the install steps.
1538 Kernel modules compiled outside of a kernel build now default to
1539 installing to /boot/modules instead of /boot/kernel. Many kernel
1540 modules built this way (such as those in ports) already overrode
1541 KMODDIR explicitly to install into /boot/modules. However,
1542 manually building and installing a module from /sys/modules will
1543 now install to /boot/modules instead of /boot/kernel.
1546 The CAM I/O scheduler has been committed to the kernel. There should be
1547 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
1548 list of known rogues that claim support for this but actually corrupt
1549 data is believed to be complete, be on the lookout for data
1550 corruption. The known rogue list is believed to be complete:
1552 o Crucial MX100, M550 drives with MU01 firmware.
1553 o Micron M510 and M550 drives with MU01 firmware.
1554 o Micron M500 prior to MU07 firmware
1555 o Samsung 830, 840, and 850 all firmwares
1556 o FCCT M500 all firmwares
1558 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
1559 with working NCQ TRIM. For Micron branded drives, see your sales rep for
1560 updated firmware. Black listed drives will work correctly because these
1561 drives work correctly so long as no NCQ TRIMs are sent to them. Given
1562 this list is the same as found in Linux, it's believed there are no
1563 other rogues in the market place. All other models from the above
1566 To be safe, if you are at all concerned, you can quirk each of your
1567 drives to prevent NCQ from being sent by setting:
1568 kern.cam.ada.X.quirks="0x2"
1569 in loader.conf. If the drive requires the 4k sector quirk, set the
1570 quirks entry to 0x3.
1573 The FAST_DEPEND build option has been removed and its functionality is
1574 now the one true way. The old mkdep(1) style of 'make depend' has
1575 been removed. See 20160311 for further details.
1578 Resource range types have grown from unsigned long to uintmax_t. All
1579 drivers, and anything using libdevinfo, need to be recompiled.
1582 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
1583 builds. It no longer runs mkdep(1) during 'make depend', and the
1584 'make depend' stage can safely be skipped now as it is auto ran
1585 when building 'make all' and will generate all SRCS and DPSRCS before
1586 building anything else. Dependencies are gathered at compile time with
1587 -MF flags kept in separate .depend files per object file. Users should
1588 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
1589 stale .depend files.
1592 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
1593 kernel modules. Therefore, if you load any kernel modules at boot time,
1594 please install the boot loaders after you install the kernel, but before
1598 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1599 make installkernel KERNCONF=YOUR_KERNEL_HERE
1600 make -C sys/boot install
1601 <reboot in single user>
1603 Then follow the usual steps, described in the General Notes section,
1607 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
1608 see the 20141231 entry below for information about prerequisites and
1609 upgrading, if you are not already using clang 3.5.0 or higher.
1612 The AIO subsystem is now a standard part of the kernel. The
1613 VFS_AIO kernel option and aio.ko kernel module have been removed.
1614 Due to stability concerns, asynchronous I/O requests are only
1615 permitted on sockets and raw disks by default. To enable
1616 asynchronous I/O requests on all file types, set the
1617 vfs.aio.enable_unsafe sysctl to a non-zero value.
1620 The ELF object manipulation tool objcopy is now provided by the
1621 ELF Tool Chain project rather than by GNU binutils. It should be a
1622 drop-in replacement, with the addition of arm64 support. The
1623 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
1624 to obtain the GNU version if necessary.
1627 Building ZFS pools on top of zvols is prohibited by default. That
1628 feature has never worked safely; it's always been prone to deadlocks.
1629 Using a zvol as the backing store for a VM guest's virtual disk will
1630 still work, even if the guest is using ZFS. Legacy behavior can be
1631 restored by setting vfs.zfs.vol.recursive=1.
1634 The NONE and HPN patches has been removed from OpenSSH. They are
1635 still available in the security/openssh-portable port.
1638 With the addition of ypldap(8), a new _ypldap user is now required
1639 during installworld. "mergemaster -p" can be used to add the user
1640 prior to installworld, as documented in the handbook.
1643 The tftp loader (pxeboot) now uses the option root-path directive. As a
1644 consequence it no longer looks for a pxeboot.4th file on the tftp
1645 server. Instead it uses the regular /boot infrastructure as with the
1649 The code to start recording plug and play data into the modules has
1650 been committed. While the old tools will properly build a new kernel,
1651 a number of warnings about "unknown metadata record 4" will be produced
1652 for an older kldxref. To avoid such warnings, make sure to rebuild
1653 the kernel toolchain (or world). Make sure that you have r292078 or
1654 later when trying to build 292077 or later before rebuilding.
1657 Debug data files are now built by default with 'make buildworld' and
1658 installed with 'make installworld'. This facilitates debugging but
1659 requires more disk space both during the build and for the installed
1660 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
1664 r291527 changed the internal interface between the nfsd.ko and
1665 nfscommon.ko modules. As such, they must both be upgraded to-gether.
1666 __FreeBSD_version has been bumped because of this.
1669 Add support for unicode collation strings leads to a change of
1670 order of files listed by ls(1) for example. To get back to the old
1671 behaviour, set LC_COLLATE environment variable to "C".
1673 Databases administrators will need to reindex their databases given
1674 collation results will be different.
1676 Due to a bug in install(1) it is recommended to remove the ancient
1677 locales before running make installworld.
1679 rm -rf /usr/share/locale/*
1682 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
1683 libcrypto.so.7 or libssl.so.7 must be recompiled.
1686 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
1687 Kernel modules isp_2400_multi and isp_2500_multi were removed and
1688 should be replaced with isp_2400 and isp_2500 modules respectively.
1691 The build previously allowed using 'make -n' to not recurse into
1692 sub-directories while showing what commands would be executed, and
1693 'make -n -n' to recursively show commands. Now 'make -n' will recurse
1694 and 'make -N' will not.
1697 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
1698 and etcupdate will now use this file. A custom sendmail.cf is now
1699 updated via this mechanism rather than via installworld. If you had
1700 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
1701 want to remove the exclusion or change it to "always install".
1702 /etc/mail/sendmail.cf is now managed the same way regardless of
1703 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
1704 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
1707 Compatibility shims for legacy ATA device names have been removed.
1708 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
1709 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
1710 environment variables, /dev/ad* and /dev/ar* symbolic links.
1713 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
1714 Please see the 20141231 entry below for information about prerequisites
1715 and upgrading, if you are not already using clang 3.5.0 or higher.
1718 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
1719 and renamed from .symbols to .debug. This reduces the size requirements
1720 on the boot partition or file system and provides consistency with
1721 userland debug files.
1723 When using the supported kernel installation method the
1724 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
1725 as is done with /boot/kernel.
1727 Developers wishing to maintain the historical behavior of installing
1728 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
1731 The wireless drivers had undergone changes that remove the 'parent
1732 interface' from the ifconfig -l output. The rc.d network scripts
1733 used to check presence of a parent interface in the list, so old
1734 scripts would fail to start wireless networking. Thus, etcupdate(3)
1735 or mergemaster(8) run is required after kernel update, to update your
1736 rc.d scripts in /etc.
1739 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
1740 These configurations are now automatically interpreted as
1741 'scrub fragment reassemble'.
1744 Kernel-loadable modules for the random(4) device are back. To use
1745 them, the kernel must have
1748 options RANDOM_LOADABLE
1750 kldload(8) can then be used to load random_fortuna.ko
1751 or random_yarrow.ko. Please note that due to the indirect
1752 function calls that the loadable modules need to provide,
1753 the build-in variants will be slightly more efficient.
1755 The random(4) kernel option RANDOM_DUMMY has been retired due to
1756 unpopularity. It was not all that useful anyway.
1759 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
1760 Control over building the ELF Tool Chain tools is now provided by
1761 the WITHOUT_TOOLCHAIN knob.
1764 The polarity of Pulse Per Second (PPS) capture events with the
1765 uart(4) driver has been corrected. Prior to this change the PPS
1766 "assert" event corresponded to the trailing edge of a positive PPS
1767 pulse and the "clear" event was the leading edge of the next pulse.
1769 As the width of a PPS pulse in a typical GPS receiver is on the
1770 order of 1 millisecond, most users will not notice any significant
1771 difference with this change.
1773 Anyone who has compensated for the historical polarity reversal by
1774 configuring a negative offset equal to the pulse width will need to
1775 remove that workaround.
1778 The default group assigned to /dev/dri entries has been changed
1779 from 'wheel' to 'video' with the id of '44'. If you want to have
1780 access to the dri devices please add yourself to the video group
1783 # pw groupmod video -m $USER
1786 The menu.rc and loader.rc files will now be replaced during
1787 upgrades. Please migrate local changes to menu.rc.local and
1788 loader.rc.local instead.
1791 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
1792 strings and strip have been removed. The src.conf(5) knob
1793 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
1796 As ZFS requires more kernel stack pages than is the default on some
1797 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
1798 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
1800 Please consider using 'options KSTACK_PAGES=X' where X is greater
1801 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
1804 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
1805 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
1806 default, i.e., they will not contain "::". For example, instead
1807 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
1808 to have a more specific match, such as different map entries for
1809 IPv6:0:0 vs IPv6:0. This change requires that configuration
1810 data (including maps, files, classes, custom ruleset, etc.) must
1811 use the same format, so make certain such configuration data is
1812 upgrading. As a very simple check search for patterns like
1813 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
1814 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
1815 the cf option UseCompressedIPv6Addresses.
1818 The default kernel entropy-processing algorithm is now
1819 Fortuna, replacing Yarrow.
1821 Assuming you have 'device random' in your kernel config
1822 file, the configurations allow a kernel option to override
1823 this default. You may choose *ONE* of:
1825 options RANDOM_YARROW # Legacy /dev/random algorithm.
1826 options RANDOM_DUMMY # Blocking-only driver.
1828 If you have neither, you get Fortuna. For most people,
1829 read no further, Fortuna will give a /dev/random that works
1830 like it always used to, and the difference will be irrelevant.
1832 If you remove 'device random', you get *NO* kernel-processed
1833 entropy at all. This may be acceptable to folks building
1834 embedded systems, but has complications. Carry on reading,
1835 and it is assumed you know what you need.
1837 *PLEASE* read random(4) and random(9) if you are in the
1838 habit of tweaking kernel configs, and/or if you are a member
1839 of the embedded community, wanting specific and not-usual
1840 behaviour from your security subsystems.
1842 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
1843 random', you will NOT have a functioning /dev/random, and
1844 many cryptographic features will not work, including SSH.
1845 You may also find strange behaviour from the random(3) set
1846 of library functions, in particular sranddev(3), srandomdev(3)
1847 and arc4random(3). The reason for this is that the KERN_ARND
1848 sysctl only returns entropy if it thinks it has some to
1849 share, and with RANDOM_DUMMY or no 'device random' this
1853 An additional fix for the issue described in the 20150614 sendmail
1854 entry below has been committed in revision 284717.
1857 FreeBSD's old make (fmake) has been removed from the system. It is
1858 available as the devel/fmake port or via pkg install fmake.
1861 The fix for the issue described in the 20150614 sendmail entry
1862 below has been committed in revision 284436. The work
1863 around described in that entry is no longer needed unless the
1864 default setting is overridden by a confDH_PARAMETERS configuration
1865 setting of '5' or pointing to a 512 bit DH parameter file.
1868 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
1869 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
1870 and devel/kyua to version 0.20+ and adjust any calling code to work
1871 with Kyuafile and kyua.
1874 The import of openssl to address the FreeBSD-SA-15:10.openssl
1875 security advisory includes a change which rejects handshakes
1876 with DH parameters below 768 bits. sendmail releases prior
1877 to 8.15.2 (not yet released), defaulted to a 512 bit
1878 DH parameter setting for client connections. To work around
1879 this interoperability, sendmail can be configured to use a
1880 2048 bit DH parameter by:
1882 1. Edit /etc/mail/`hostname`.mc
1883 2. If a setting for confDH_PARAMETERS does not exist or
1884 exists and is set to a string beginning with '5',
1885 replace it with '2'.
1886 3. If a setting for confDH_PARAMETERS exists and is set to
1887 a file path, create a new file with:
1888 openssl dhparam -out /path/to/file 2048
1889 4. Rebuild the .cf file:
1890 cd /etc/mail/; make; make install
1891 5. Restart sendmail:
1892 cd /etc/mail/; make restart
1894 A sendmail patch is coming, at which time this file will be
1898 Generation of legacy formatted entries have been disabled by default
1899 in pwd_mkdb(8), as all base system consumers of the legacy formatted
1900 entries were converted to use the new format by default when the new,
1901 machine independent format have been added and supported since FreeBSD
1904 Please see the pwd_mkdb(8) manual page for further details.
1907 Clang and llvm have been upgraded to 3.6.1 release. Please see the
1908 20141231 entry below for information about prerequisites and upgrading,
1909 if you are not already using 3.5.0 or higher.
1912 TI platform code switched to using vendor DTS files and this update
1913 may break existing systems running on Beaglebone, Beaglebone Black,
1916 - dtb files should be regenerated/reinstalled. Filenames are the
1917 same but content is different now
1918 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
1919 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
1920 addressing scheme is now pin 25 on /dev/gpioc3.
1921 - Pandaboard: /etc/ttys should be updated, serial console device is
1922 now /dev/ttyu2, not /dev/ttyu0
1925 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
1926 If you need the GNU extension from groff soelim(1), install groff
1927 from package: pkg install groff, or via ports: textproc/groff.
1930 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
1931 defined in symlink(7); previously symlinks were silently ignored.
1934 The const qualifier has been removed from iconv(3) to comply with
1935 POSIX. The ports tree is aware of this from r384038 onwards.
1938 Libraries specified by LIBADD in Makefiles must have a corresponding
1939 DPADD_<lib> variable to ensure correct dependencies. This is now
1940 enforced in src.libnames.mk.
1943 From legacy ata(4) driver was removed support for SATA controllers
1944 supported by more functional drivers ahci(4), siis(4) and mvs(4).
1945 Kernel modules ataahci and ataadaptec were removed completely,
1946 replaced by ahci and mvs modules respectively.
1949 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
1950 the 20141231 entry below for information about prerequisites and
1951 upgrading, if you are not already using 3.5.0 or higher.
1954 The 32-bit PowerPC kernel has been changed to a position-independent
1955 executable. This can only be booted with a version of loader(8)
1956 newer than January 31, 2015, so make sure to update both world and
1957 kernel before rebooting.
1960 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
1961 but before r278950, the RNG was not seeded properly. Immediately
1962 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
1963 ssh keys or openssl keys) that were generated w/ a kernel from that
1964 range. This does not affect programs that directly used /dev/random
1965 or /dev/urandom. All userland uses of arc4random(3) are affected.
1968 The autofs(4) ABI was changed in order to restore binary compatibility
1969 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
1970 with the new kernel.
1973 The powerpc64 kernel has been changed to a position-independent
1974 executable. This can only be booted with a new version of loader(8),
1975 so make sure to update both world and kernel before rebooting.
1978 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
1979 only release, no new features have been added. Please see the 20141231
1980 entry below for information about prerequisites and upgrading, if you
1981 are not already using 3.5.0.
1984 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
1985 taken from the ELF Tool Chain project rather than GNU binutils. They
1986 should be drop-in replacements, with the addition of arm64 support.
1987 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
1988 binutils tools, if necessary. See 20150805 for updated information.
1991 The default Unbound configuration now enables remote control
1992 using a local socket. Users who have already enabled the
1993 local_unbound service should regenerate their configuration
1994 by running "service local_unbound setup" as root.
1997 The GNU texinfo and GNU info pages have been removed.
1998 To be able to view GNU info pages please install texinfo from ports.
2001 Clang, llvm and lldb have been upgraded to 3.5.0 release.
2003 As of this release, a prerequisite for building clang, llvm and lldb is
2004 a C++11 capable compiler and C++11 standard library. This means that to
2005 be able to successfully build the cross-tools stage of buildworld, with
2006 clang as the bootstrap compiler, your system compiler or cross compiler
2007 should either be clang 3.3 or later, or gcc 4.8 or later, and your
2008 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
2011 On any standard FreeBSD 10.x or 11.x installation, where clang and
2012 libc++ are on by default (that is, on x86 or arm), this should work out
2015 On 9.x installations where clang is enabled by default, e.g. on x86 and
2016 powerpc, libc++ will not be enabled by default, so libc++ should be
2017 built (with clang) and installed first. If both clang and libc++ are
2018 missing, build clang first, then use it to build libc++.
2020 On 8.x and earlier installations, upgrade to 9.x first, and then follow
2021 the instructions for 9.x above.
2023 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
2024 default, and do not build clang.
2026 Many embedded systems are resource constrained, and will not be able to
2027 build clang in a reasonable time, or in some cases at all. In those
2028 cases, cross building bootable systems on amd64 is a workaround.
2030 This new version of clang introduces a number of new warnings, of which
2031 the following are most likely to appear:
2035 This warns in two cases, for both C and C++:
2036 * When the code is trying to take the absolute value of an unsigned
2037 quantity, which is effectively a no-op, and almost never what was
2038 intended. The code should be fixed, if at all possible. If you are
2039 sure that the unsigned quantity can be safely cast to signed, without
2040 loss of information or undefined behavior, you can add an explicit
2041 cast, or disable the warning.
2043 * When the code is trying to take an absolute value, but the called
2044 abs() variant is for the wrong type, which can lead to truncation.
2045 If you want to disable the warning instead of fixing the code, please
2046 make sure that truncation will not occur, or it might lead to unwanted
2049 -Wtautological-undefined-compare and
2050 -Wundefined-bool-conversion
2052 These warn when C++ code is trying to compare 'this' against NULL, while
2053 'this' should never be NULL in well-defined C++ code. However, there is
2054 some legacy (pre C++11) code out there, which actively abuses this
2055 feature, which was less strictly defined in previous C++ versions.
2057 Squid and openjdk do this, for example. The warning can be turned off
2058 for C++98 and earlier, but compiling the code in C++11 mode might result
2059 in unexpected behavior; for example, the parts of the program that are
2060 unreachable could be optimized away.
2063 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
2064 kernel sources have been removed. The .h files remain, since some
2065 utilities include them. This will need to be fixed later.
2066 If "mount -t oldnfs ..." is attempted, it will fail.
2067 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
2068 the utilities will report errors.
2071 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
2072 directories to top level SUBDIR variable when their parent
2073 directory is included in LOCAL_DIRS. Users with build systems with
2074 such hierarchies and without SUBDIR entries in the parent
2075 directory Makefiles should add them or add the directories to
2079 faith(4) and faithd(8) have been removed from the base system. Faith
2080 has been obsolete for a very long time.
2083 vt(4), the new console driver, is enabled by default. It brings
2084 support for Unicode and double-width characters, as well as
2085 support for UEFI and integration with the KMS kernel video
2088 You may need to update your console settings in /etc/rc.conf,
2089 most probably the keymap. During boot, /etc/rc.d/syscons will
2090 indicate what you need to do.
2092 vt(4) still has issues and lacks some features compared to
2093 syscons(4). See the wiki for up-to-date information:
2094 https://wiki.freebsd.org/Newcons
2096 If you want to keep using syscons(4), you can do so by adding
2097 the following line to /boot/loader.conf:
2101 pjdfstest has been integrated into kyua as an opt-in test suite.
2102 Please see share/doc/pjdfstest/README for more details on how to
2106 gperf has been removed from the base system for architectures
2107 that use clang. Ports that require gperf will obtain it from the
2111 pjdfstest has been moved from tools/regression/pjdfstest to
2115 At svn r271982, The default linux compat kernel ABI has been adjusted
2116 to 2.6.18 in support of the linux-c6 compat ports infrastructure
2117 update. If you wish to continue using the linux-f10 compat ports,
2118 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
2119 encouraged to update their linux-compat packages to linux-c6 during
2120 their next update cycle.
2123 The ofwfb driver, used to provide a graphics console on PowerPC when
2124 using vt(4), no longer allows mmap() of all physical memory. This
2125 will prevent Xorg on PowerPC with some ATI graphics cards from
2126 initializing properly unless x11-servers/xorg-server is updated to
2130 The xdev targets have been converted to using TARGET and
2131 TARGET_ARCH instead of XDEV and XDEV_ARCH.
2134 The default unbound configuration has been modified to address
2135 issues with reverse lookups on networks that use private
2136 address ranges. If you use the local_unbound service, run
2137 "service local_unbound setup" as root to regenerate your
2138 configuration, then "service local_unbound reload" to load the
2142 The GNU texinfo and GNU info pages are not built and installed
2143 anymore, WITH_INFO knob has been added to allow to built and install
2145 UPDATE: see 20150102 entry on texinfo's removal
2148 The GNU readline library is now an INTERNALLIB - that is, it is
2149 statically linked into consumers (GDB and variants) in the base
2150 system, and the shared library is no longer installed. The
2151 devel/readline port is available for third party software that
2155 The Itanium architecture (ia64) has been removed from the list of
2156 known architectures. This is the first step in the removal of the
2160 Commit r268115 has added NFSv4.1 server support, merged from
2161 projects/nfsv4.1-server. Since this includes changes to the
2162 internal interfaces between the NFS related modules, a full
2163 build of the kernel and modules will be necessary.
2164 __FreeBSD_version has been bumped.
2167 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
2168 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
2169 which differs from the behaviour controlled by this knob.)
2172 Maximal length of the serial number in CTL was increased from 16 to
2173 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
2174 and ctld, need to be rebuilt to work with a new kernel.
2177 The libatf-c and libatf-c++ major versions were downgraded to 0 and
2178 1 respectively to match the upstream numbers. They were out of
2179 sync because, when they were originally added to FreeBSD, the
2180 upstream versions were not respected. These libraries are private
2181 and not yet built by default, so renumbering them should be a
2182 non-issue. However, unclean source trees will yield broken test
2183 programs once the operator executes "make delete-old-libs" after a
2184 "make installworld".
2186 Additionally, the atf-sh binary was made private by moving it into
2187 /usr/libexec/. Already-built shell test programs will keep the
2188 path to the old binary so they will break after "make delete-old"
2191 If you are using WITH_TESTS=yes (not the default), wipe the object
2192 tree and rebuild from scratch to prevent spurious test failures.
2193 This is only needed once: the misnumbered libraries and misplaced
2194 binaries have been added to OptionalObsoleteFiles.inc so they will
2195 be removed during a clean upgrade.
2198 Clang and llvm have been upgraded to 3.4.1 release.
2201 We bogusly installed src.opts.mk in /usr/share/mk. This file should
2202 be removed to avoid issues in the future (and has been added to
2206 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
2207 past, it affected all builds that used the bsd.*.mk files. The old
2208 behavior was a bug, but people may have relied upon it. To get this
2209 behavior back, you can .include /etc/src.conf from /etc/make.conf
2210 (which is still global and isn't changed). This also changes the
2211 behavior of incremental builds inside the tree of individual
2212 directories. Set MAKESYSPATH to ".../share/mk" to do that.
2213 Although this has survived make universe and some upgrade scenarios,
2214 other upgrade scenarios may have broken. At least one form of
2215 temporary breakage was fixed with MAKESYSPATH settings for buildworld
2216 as well... In cases where MAKESYSPATH isn't working with this
2217 setting, you'll need to set it to the full path to your tree.
2219 One side effect of all this cleaning up is that bsd.compiler.mk
2220 is no longer implicitly included by bsd.own.mk. If you wish to
2221 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
2225 The lindev device has been removed since /dev/full has been made a
2226 standard device. __FreeBSD_version has been bumped.
2229 The knob WITHOUT_VI was added to the base system, which controls
2230 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
2231 in order to reorder files share/termcap and didn't build ex(1) as a
2232 build tool, so building/installing with WITH_VI is highly advised for
2233 build hosts for older releases.
2235 This issue has been fixed in stable/9 and stable/10 in r277022 and
2236 r276991, respectively.
2239 The YES_HESIOD knob has been removed. It has been obsolete for
2240 a decade. Please move to using WITH_HESIOD instead or your builds
2241 will silently lack HESIOD.
2244 The uart(4) driver has been changed with respect to its handling
2245 of the low-level console. Previously the uart(4) driver prevented
2246 any process from changing the baudrate or the CLOCAL and HUPCL
2247 control flags. By removing the restrictions, operators can make
2248 changes to the serial console port without having to reboot.
2249 However, when getty(8) is started on the serial device that is
2250 associated with the low-level console, a misconfigured terminal
2251 line in /etc/ttys will now have a real impact.
2252 Before upgrading the kernel, make sure that /etc/ttys has the
2253 serial console device configured as 3wire without baudrate to
2254 preserve the previous behaviour. E.g:
2255 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
2258 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
2259 to improve performance. To re-enable it, if needed, run rpcbind
2260 with command line option -W.
2263 Switched back to the GPL dtc compiler due to updates in the upstream
2264 dts files not being supported by the BSDL dtc compiler. You will need
2265 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
2266 may result while building dtb files during a kernel build if you fail
2267 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
2270 Clang and llvm have been upgraded to 3.4 release.
2273 The nve(4) driver has been removed. Please use the nfe(4) driver
2274 for NVIDIA nForce MCP Ethernet adapters instead.
2277 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
2278 This could cause certain C++ applications using shared libraries built
2279 against the previous version of libc++ to crash. The incompatibility
2280 has now been fixed, but any C++ applications or shared libraries built
2281 between r261283 and r261801 should be recompiled.
2284 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
2285 capability mode support. Please note that enabling the feature in
2286 kernel is still highly recommended.
2289 OpenSSH is now built with sandbox support, and will use sandbox as
2290 the default privilege separation method. This requires Capsicum
2291 capability mode support in kernel.
2294 The libelf and libdwarf libraries have been updated to newer
2295 versions from upstream. Shared library version numbers for
2296 these two libraries were bumped. Any ports or binaries
2297 requiring these two libraries should be recompiled.
2298 __FreeBSD_version is bumped to 1100006.
2301 If a Makefile in a tests/ directory was auto-generating a Kyuafile
2302 instead of providing an explicit one, this would prevent such
2303 Makefile from providing its own Kyuafile in the future during
2304 NO_CLEAN builds. This has been fixed in the Makefiles but manual
2305 intervention is needed to clean an objdir if you use NO_CLEAN:
2306 # find /usr/obj -name Kyuafile | xargs rm -f
2309 The behavior of gss_pseudo_random() for the krb5 mechanism
2310 has changed, for applications requesting a longer random string
2311 than produced by the underlying enctype's pseudo-random() function.
2312 In particular, the random string produced from a session key of
2313 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
2314 be different at the 17th octet and later, after this change.
2315 The counter used in the PRF+ construction is now encoded as a
2316 big-endian integer in accordance with RFC 4402.
2317 __FreeBSD_version is bumped to 1100004.
2320 The WITHOUT_ATF build knob has been removed and its functionality
2321 has been subsumed into the more generic WITHOUT_TESTS. If you were
2322 using the former to disable the build of the ATF libraries, you
2323 should change your settings to use the latter.
2326 The default version of mtree is nmtree which is obtained from
2327 NetBSD. The output is generally the same, but may vary
2328 slightly. If you found you need identical output adding
2329 "-F freebsd9" to the command line should do the trick. For the
2330 time being, the old mtree is available as fmtree.
2333 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
2334 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
2335 1.1.4_8 and verify bsdyml not linked in, before running "make
2337 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
2339 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
2342 The stable/10 branch has been created in subversion from head
2349 Sometimes, obscure build problems are the result of environment
2350 poisoning. This can happen because the make utility reads its
2351 environment when searching for values for global variables. To run
2352 your build attempts in an "environmental clean room", prefix all make
2353 commands with 'env -i '. See the env(1) manual page for more details.
2354 Occasionally a build failure will occur with "make -j" due to a race
2355 condition. If this happens try building again without -j, and please
2356 report a bug if it happens consistently.
2358 When upgrading from one major version to another it is generally best to
2359 upgrade to the latest code in the currently installed branch first, then
2360 do an upgrade to the new branch. This is the best-tested upgrade path,
2361 and has the highest probability of being successful. Please try this
2362 approach if you encounter problems with a major version upgrade. Since
2363 the stable 4.x branch point, one has generally been able to upgrade from
2364 anywhere in the most recent stable branch to head / current (or even the
2365 last couple of stable branches). See the top of this file when there's
2368 The update process will emit an error on an attempt to perform a build
2369 or install from a FreeBSD version below the earliest supported version.
2370 When updating from an older version the update should be performed one
2371 major release at a time, including running `make delete-old` at each
2374 When upgrading a live system, having a root shell around before
2375 installing anything can help undo problems. Not having a root shell
2376 around can lead to problems if pam has changed too much from your
2377 starting point to allow continued authentication after the upgrade.
2379 This file should be read as a log of events. When a later event changes
2380 information of a prior event, the prior event should not be deleted.
2381 Instead, a pointer to the entry with the new information should be
2382 placed in the old entry. Readers of this file should also sanity check
2383 older entries before relying on them blindly. Authors of new entries
2384 should write them with this in mind.
2388 When upgrading the boot ZFS pool to a new version, always follow
2391 1.) recompile and reinstall the ZFS boot loader and boot block
2392 (this is part of "make buildworld" and "make installworld")
2394 2.) update the ZFS boot block on your boot drive
2396 The following example updates the ZFS boot block on the
2397 freebsd-boot partition of a GPT partitioned drive ada0:
2398 "gpart bootcode -p /boot/gptzfsboot -i $N ada0"
2399 The value $N will typically be 1 (if booting from BIOS) or 2 (if
2402 Non-boot pools do not need these updates.
2406 If you are updating from a prior version of FreeBSD (even one just
2407 a few days old), you should follow this procedure. It is the most
2408 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2410 make kernel-toolchain
2411 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2412 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2414 To test a kernel once
2415 ---------------------
2416 If you just want to boot a kernel once (because you are not sure
2417 if it works, or if you want to boot a known bad kernel to provide
2418 debugging information) run
2419 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2420 nextboot -k testkernel
2422 To rebuild everything and install it on the current system.
2423 -----------------------------------------------------------
2424 # Note: sometimes if you are running current you gotta do more than
2425 # is listed here if you are upgrading from a really old current.
2427 <make sure you have good level 0 dumps>
2429 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2430 make installkernel KERNCONF=YOUR_KERNEL_HERE
2432 <reboot in single user> [3]
2439 To cross-install current onto a separate partition
2440 --------------------------------------------------
2441 # In this approach we use a separate partition to hold
2442 # current's root, 'usr', and 'var' directories. A partition
2443 # holding "/", "/usr" and "/var" should be about 2GB in
2446 <make sure you have good level 0 dumps>
2449 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2450 <maybe newfs current's root partition>
2451 <mount current's root partition on directory ${CURRENT_ROOT}>
2452 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
2453 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2454 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2455 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2456 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2457 <reboot into current>
2458 <do a "native" rebuild/install as described in the previous section>
2459 <maybe install compatibility libraries from ports/misc/compat*>
2463 To upgrade in-place from stable to current
2464 ----------------------------------------------
2465 <make sure you have good level 0 dumps>
2467 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8]
2468 make installkernel KERNCONF=YOUR_KERNEL_HERE
2470 <reboot in single user> [3]
2477 Make sure that you've read the UPDATING file to understand the
2478 tweaks to various things you need. At this point in the life
2479 cycle of current, things change often and you are on your own
2480 to cope. The defaults can also change, so please read ALL of
2481 the UPDATING entries.
2483 Also, if you are tracking -current, you must be subscribed to
2484 freebsd-current@freebsd.org. Make sure that before you update
2485 your sources that you have read and understood all the recent
2486 messages there. If in doubt, please track -stable which has
2487 much fewer pitfalls.
2489 [1] If you have third party modules, such as vmware, you should disable
2490 them at this point so they don't crash your system on
2491 reboot. Alternatively, you should rebuild all the modules you have in
2492 your system and install them as well. If you are running -current, you
2493 should seriously consider placing all sources to all the modules for
2494 your system (or symlinks to them) in /usr/local/sys/modules so this
2495 happens automatically. If all your modules come from ports, then adding
2496 the port origin directories to PORTS_MODULES instead is also automatic
2498 PORTS_MODULES+=x11/nvidia-driver
2500 [3] From the bootblocks, boot -s, and then do
2504 sh /etc/rc.d/zfs start # mount zfs filesystem, if needed
2505 cd src # full path to source
2506 adjkerntz -i # if CMOS is wall time
2507 Also, when doing a major release upgrade, it is required that you boot
2508 into single user mode to do the installworld.
2510 [4] Note: This step is non-optional. Failure to do this step
2511 can result in a significant reduction in the functionality of the
2512 system. Attempting to do it by hand is not recommended and those
2513 that pursue this avenue should read this file carefully, as well
2514 as the archives of freebsd-current and freebsd-hackers mailing lists
2515 for potential gotchas. The -U option is also useful to consider.
2516 See mergemaster(8) for more information.
2518 [5] Usually this step is a no-op. However, from time to time
2519 you may need to do this if you get unknown user in the following
2520 step. It never hurts to do it all the time. You may need to
2521 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2522 install) after the buildworld before this step if you last updated
2523 from current before 20130425 or from -stable before 20130430.
2525 [6] This only deletes old files and directories. Old libraries
2526 can be deleted by "make delete-old-libs", but you have to make
2527 sure that no program is using those libraries anymore.
2529 [8] The new kernel must be able to run existing binaries used by an
2530 installworld. When upgrading across major versions, the new kernel's
2531 configuration must include the correct COMPAT_FREEBSD<n> option for
2532 existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x binaries). Failure
2533 to do so may leave you with a system that is hard to boot to recover. A
2534 GENERIC kernel will include suitable compatibility options to run
2535 binaries from older branches. Note that the ability to run binaries
2536 from unsupported branches is not guaranteed.
2538 Make sure that you merge any new devices from GENERIC since the
2539 last time you updated your kernel config file. Options also
2540 change over time, so you may need to adjust your custom kernels
2543 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2544 "?=" instead of the "=" assignment operator, so that buildworld can
2545 override the CPUTYPE if it needs to.
2547 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2548 not on the command line, or in /etc/make.conf. buildworld will
2549 warn if it is improperly defined.
2552 This file contains a list, in reverse chronological order, of major
2553 breakages in tracking -current. It is not guaranteed to be a complete
2554 list of such breakages, and only contains entries since September 23, 2011.
2555 If you need to see UPDATING entries from before that date, you will need
2556 to fetch an UPDATING file from an older FreeBSD release.
2558 Copyright information:
2560 Copyright 1998-2009 M. Warner Losh <imp@FreeBSD.org>
2562 Redistribution, publication, translation and use, with or without
2563 modification, in full or in part, in any form or format of this
2564 document are permitted without further permission from the author.
2566 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2567 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2568 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2569 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2570 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2571 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2572 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2573 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2574 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2575 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2576 POSSIBILITY OF SUCH DAMAGE.
2578 Contact Warner Losh if you have any questions about your use of