1 Updating Information for users of FreeBSD stable/13.
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://docs.freebsd.org/en/books/handbook/cutting-edge/#makeworld
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 llvm-objump is now always installed as objdump. Previously there was
17 no /usr/bin/objdump unless the WITH_LLVM_BINUTILS knob was used.
19 Some LLVM objdump options have a different output format compared to
20 GNU objdump; readelf is available for inspecting ELF files, and GNU
21 objdump is available from the devel/binutils port or package.
24 Bump __FreeBSD_verion after various changes to LinuxKPI pci and 802.11
25 in order to help out-of-tree consumers to deal accordingly.
28 LinuxKPI pm.h changes require an update to the latest drm-kmod version
29 before re-compiling to avoid errors.
32 Bump __FreeBSD_verion to 1301501 after merging LinuxKPI and
33 net80211 changes in order to help out-of-tree consumers to deal
37 For 64-bit architectures the base system is now built with Position
38 Independent Executable (PIE) support enabled by default. It may be
39 disabled using the WITHOUT_PIE knob. A clean build is required.
42 The macros provided for the manipulation of CPU sets (e.g. CPU_AND)
43 have been modified to take 2 source arguments instead of only 1.
44 Externally maintained sources that use these macros will have to
45 be adapted. The FreeBSD version has been bumped to 1300524 to
49 Commit 18f5b477ee66 adds two arguments to VOP_ALLOCATE().
50 Normally changes to VOP calls are not MFC'd, but a
51 discussion on freebsd-current@ seemed to agree that
52 it was acceptable in this case, to fix the NFSv4.2 server.
53 Any out of source tree file system with a custom
54 VOP_ALLOCATE() call will need to be modified.
55 Bump __FreeBSD_version to 1300523 since the NFS modules need
56 to be rebuilt from sources.
59 Commit 6e8e261f0d4e changed the internal KAPI between the NFS
60 modules. As such, all the modules must be rebuilt from sources.
61 __FreeBSD_version has been bumped to 1300522.
64 Bump __FreeBSD_version to 1300521 after merging LinuxKPI and
65 net80211 changes in order to support building various wireless
66 drivers. This is to help other external consumers of LinuxKPI
67 and net80211 to deal accordingly.
70 Commit a599f9f7620b deleted the variable called nfs_maxcopyrange
71 from nfscommon.ko, since it no longer needs to be global. As such,
72 the other nfs modules must be rebuilt from up to date sources.
73 Bump __FreeBSD_version to 1300516 for this.
76 As of commit 622809b0868f OpenSSL no longer enables kernel TLS
77 by default. Users can enable kernel TLS via the "KTLS" SSL
78 option. This can be enabled globally by using a custom
79 OpenSSL config file via OPENSSL_CONF or via an
80 application-specific configuration option for applications
81 which permit setting SSL options via SSL_CONF_cmd(3).
84 Commits 9fb6e613373c and 9ec7dbf46b0a both changed the internal
85 KAPI between the NFS modules. Bump __FreeBSD_version to 1300514.
86 All NFS modules must be rebuilt from sources.
89 Commit b69019c14cd8 removes pf's DIOCGETSTATESNV ioctl.
90 As of be70c7a50d32 it is no longer used by userspace, but it does mean
91 users may not be able to enumerate pf states if they update the kernel
92 past c021ff986e2b without first updating userspace past be70c7a50d32.
95 Bump __FreeBSD_version to 1300512 after merging LinuxKPI, OFED,
96 net80211, and driver changes in order to support building
97 Intel wireless iwlwifi drivers. This is especially needed for
98 drm-kmod which needs updates after this.
101 The 20210707 awk update brought in a change in behavior. This has
102 been corrected as of d4d252c49976. Between these dates, if you
103 installed a new awk binary, you may not be able to build a new
104 kernel because the change in behavior affected the genoffset
105 script used to build the kernel. If you did update, the fix is
106 to update your sources past the above hash and do
109 % sudo -E make install
110 to enable building kernels again.
113 Commit 8a04edfdcbd2 changes the default minor version
114 used for NFSv4 mounts to the highest minor version supported
115 by the NFSv4 server. This default can be overridden by using
116 the "minorversion" mount option.
117 The consensus of a discussion on freebsd-current@ indicated
118 that this would be acceptable to do and would not be considered
122 awk has been updated to the latest one-true-awk version 20210215.
123 This contains a number of minor bug fixes.
126 Commit ca179c4d74f2/632e3f2f3a66 changed the package in which
127 the OpenSSL libraries and utilities are packaged.
128 It is recommended for pkgbase user to do:
129 pkg install -f FreeBSD-openssl
130 before pkg upgrade otherwise some dependencies might not be met
131 and pkg will stop working as libssl will not be present anymore
135 Commit 841006678745 changed the internal KAPI between the krpc
136 and nfsd modules. As such, they must both be rebuilt from
138 __FreeBSD_version is bumped to 1300510.
141 Commit 272f39942254 changed the internal KAPI between the
142 nscl.ko and nfscommon.ko modules, so they both need to be
143 rebuilt from sources.
146 Commit 5a45802b3c8c changed the internal KAPI between
147 the krpc and NFS. As such, the krpc, nfscommon and
148 nfscl modules must all be rebuilt from sources.
149 Without this patch, NFSv4.1/4.2 mounts should not
150 be done with the nfscbd(8) daemon running, to avoid
151 needing a working back channel for server->client RPCs.
154 Various LinuxKPI functionality was added which conflicts with DRM.
155 Please update your drm-kmod port to after the __FreeBSD_verison 1300139
159 The stable/13 branch has been created from main.
162 PC Card attachments for all devices have been removed. In the case of
163 wi and cmx, the entire drivers were removed because they were only
164 PC Card devices. FreeBSD_version 1300134 should be used for this
165 since it was bumped so recently.
168 Transport-independent parts of HID support have been split off the USB
169 code in to separate subsystem. Kernel configs which include one of
170 ums, ukbd, uhid, atp, wsp, wmt, uaudio, ugold or ucycom drivers should
171 be updated with adding of "device hid" line.
174 ncurses installation has been modified to only keep the widechar
175 enabled version. Incremental build is broken for that change, so it
176 requires a clean build.
179 The FreeBSD project has migrated from Subversion to Git. Temporary
180 instructions can be found at
181 https://github.com/bsdimp/freebsd-git-docs/blob/main/src-cvt.md
182 and other documents in that repo.
185 The services database has been updated to cover more of the basic
186 services expected in a modern system. The database is big enough
187 that it will cause issues in mergemaster in Releases previous to
188 12.2 and 11.3, or in very old current systems from before r358154.
191 Obsolete in-tree GDB 6.1.1 has been removed. GDB (including kgdb)
192 may be installed from ports or packages.
195 ping6 has been merged into ping. It can now be called as "ping -6".
196 See ping(8) for details.
199 Default value of net.add_addr_allfibs has been changed to 0.
200 If you have multi-fib configuration and rely on existence of all
201 interface routes in every fib, you need to set the above sysctl to 1.
203 The internal pre-processor in the calendar(1) program has been
204 extended to support more C pre-processor commands (e.g. #ifdef, #else,
205 and #undef) and to detect unbalanced conditional statements.
206 Error messages have been extended to include the filename and line
207 number if processing stops to help fixing malformed data files.
210 All the data files for the calendar(1) program, except calendar.freebsd,
211 have been moved to the deskutils/calendar-data port, much like the
212 jewish calendar entries were moved to deskutils/hebcal years ago. After
213 make delete-old-files, you need to install it to retain full
214 functionality. calendar(1) will issue a reminder for files it can't
218 LINT files are no longer generated. We now include the relevant NOTES
219 files. Note: This may cause conflicts with updating in some cases.
220 find sys -name LINT\* -delete
221 is suggested across this commit to remove the generated LINT files.
223 If you have tried to update with generated files there, the svn
224 command you want to un-auger the tree is
227 and then do the above find from the top level. Substitute 'amd64'
228 above with where the error message indicates a conflict.
231 OpenZFS support has been integrated. Do not upgrade root pools until
232 the loader is updated to support zstd. Furthermore, we caution against
233 'zpool upgrade' for the next few weeks. The change should be transparent
234 unless you want to use new features.
236 Not all "NO_CLEAN" build scenarios work across these changes. Many
237 scenarios have been tested and fixed, but rebuilding kernels without
238 rebuilding world may fail.
240 The ZFS cache file has moved from /boot to /etc to match the OpenZFS
241 upstream default. A fallback to /boot has been added for mountroot.
243 Pool auto import behavior at boot has been moved from the kernel module
244 to an explicit "zpool import -a" in one of the rc scripts enabled by
245 zfs_enable=YES. This means your non-root zpools won't auto import until
246 you upgrade your /etc/rc.d files.
249 The resume code now notifies devd with the 'kernel' system
250 rather than the old 'kern' subsystem to be consistent with
251 other use. The old notification will be created as well, but
252 will be removed prior to FreeBSD 14.0.
255 r362275 changed the internal API between the kernel RPC and the
256 NFS modules. As such, all the modules must be recompiled from
260 r364330 modified the internal API used between the NFS modules.
261 As such, all the NFS modules must be re-compiled from sources.
264 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
265 been upgraded to 11.0.0. Please see the 20141231 entry below for
266 information about prerequisites and upgrading, if you are not already
267 using clang 3.5.0 or higher.
270 r364092 modified the internal ABI used between the kernel NFS
271 modules. As such, all of these modules need to be rebuilt
272 from sources, so a version bump was done.
275 Makefile.inc has been updated to work around the issue documented in
276 20200729. It was a case where the optimization of using symbolic links
277 to point to binaries created a situation where we'd run new binaries
278 with old libraries starting midway through the installworld process.
281 r363679 has redefined some undefined behavior in regcomp(3); notably,
282 extraneous escapes of most ordinary characters will no longer be
283 accepted. An exp-run has identified all of the problems with this in
284 ports, but other non-ports software may need extra escapes removed to
285 continue to function.
287 Because of this change, installworld may encounter the following error
288 from rtld: Undefined symbol "regcomp@FBSD_1.6" -- It is imperative that
289 you do not halt installworld. Instead, let it run to completion (whether
290 successful or not) and run installworld once more.
293 A new implementation of bc and dc has been imported in r362681. This
294 implementation corrects non-conformant behavior of the previous bc
295 and adds GNU bc compatible options. It offers a number of extensions,
296 is much faster on large values, and has support for message catalogs
297 (a number of languages are already supported, contributions of further
298 languages welcome). The option WITHOUT_GH_BC can be used to build the
299 world with the previous versions of bc and dc.
302 r362639 changed the internal API used between the NFS kernel modules.
303 As such, they all need to be rebuilt from sources.
306 r362158 changed the arguments for VFS_CHECKEXP(). As such, any
307 out of tree file systems need to be modified and rebuilt.
308 Also, any file systems that are modules must be rebuilt.
311 read(2) of a directory fd is now rejected by default. root may
312 re-enable it for system root only on non-ZFS filesystems with the
313 security.bsd.allow_read_dir sysctl(8) MIB if
314 security.bsd.suser_enabled=1.
316 It may be advised to setup aliases for grep to default to `-d skip` if
317 commonly non-recursively grepping a list that includes directories and
318 the potential for the resulting stderr output is not tolerable. Example
319 aliases are now installed, commented out, in /root/.cshrc and
323 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
324 been upgraded to 10.0.1. Please see the 20141231 entry below for
325 information about prerequisites and upgrading, if you are not already
326 using clang 3.5.0 or higher.
329 Support for obsolete compilers has been removed from the build system.
330 Clang 6 and GCC 6.4 are the minimum supported versions.
333 closefrom(2) has been moved under COMPAT12, and replaced in libc with a
334 stub that calls close_range(2). If using a custom kernel configuration,
335 you may want to ensure that the COMPAT_FREEBSD12 option is included, as
336 a slightly older -CURRENT userland and older FreeBSD userlands may not
337 be functional without closefrom(2).
340 Upstream DTS from Linux 5.6 was merged and they now have the SID
341 and THS (Secure ID controller and THermal Sensor) node present.
342 The DTB overlays have now been removed from the tree for the H3/H5 and
343 A64 SoCs and the aw_sid and aw_thermal driver have been updated to
344 deal with upstream DTS. If you are using those overlays you need to
345 remove them from loader.conf and update the DTBs on the FAT partition.
348 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
349 been upgraded to 10.0.0. Please see the 20141231 entry below for
350 information about prerequisites and upgrading, if you are not already
351 using clang 3.5.0 or higher.
354 The amd(8) automount daemon has been removed from the source tree.
355 As of FreeBSD 10.1 autofs(5) is the preferred tool for automounting.
356 amd is still available in the sysutils/am-utils port.
359 Removed brooktree driver (bktr.4) from the tree.
362 The WITH_GPL_DTC option has been removed. The BSD-licenced device tree
363 compiler in usr.bin/dtc is used on all architectures which use dtc, and
364 the GPL dtc is available (if needed) from the sysutils/dtc port.
367 The WITHOUT_LLVM_LIBUNWIND option has been removed. LLVM's libunwind
368 is used by all supported CPU architectures.
371 GCC 4.2.1 has been removed from the tree. The WITH_GCC,
372 WITH_GCC_BOOTSTRAP, and WITH_GNUCXX options are no longer available.
373 Users who wish to build FreeBSD with GCC must use the external toolchain
377 ncurses has been updated to a newer version (6.2-20200215). Given the ABI
378 has changed, users will have to rebuild all the ports that are linked to
382 The size of struct vnet and the magic cookie have changed.
383 Users need to recompile libkvm and all modules using VIMAGE
384 together with their new kernel.
387 Defining the long deprecated NO_CTF, NO_DEBUG_FILES, NO_INSTALLLIB,
388 NO_MAN, NO_PROFILE, and NO_WARNS variables is now an error. Update
389 your Makefiles and scripts to define MK_<var>=no instead as required.
391 One exception to this is that program or library Makefiles should
392 define MAN to empty rather than setting MK_MAN=no.
395 Clang/LLVM is now the default compiler and LLD the default
399 make universe no longer uses GCC 4.2.1 on any architectures.
400 Architectures not supported by in-tree Clang/LLVM require an
401 external toolchain package.
404 GCC 4.2.1 is now not built by default, as part of the GCC 4.2.1
405 retirement plan. Specifically, the GCC, GCC_BOOTSTRAP, and GNUCXX
406 options default to off for all supported CPU architectures. As a
407 short-term transition aid they may be enabled via WITH_* options.
408 GCC 4.2.1 is expected to be removed from the tree on 2020-03-31.
411 Support for armv5 has been disconnected and is being removed. The
412 machine combination MACHINE=arm MACHINE_ARCH=arm is no longer valid.
413 You must now use a MACHINE_ARCH of armv6 or armv7. The default
414 MACHINE_ARCH for MACHINE=arm is now armv7.
417 Clang/LLVM is now the default compiler for all powerpc architectures.
418 LLD is now the default linker for powerpc64. The change for powerpc64
419 also includes a change to the ELFv2 ABI, incompatible with the existing
423 Kernel-loadable random(4) modules are no longer unloadable.
426 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
427 been upgraded to 9.0.1. Please see the 20141231 entry below for
428 information about prerequisites and upgrading, if you are not already
429 using clang 3.5.0 or higher.
432 r355677 has modified the internal interface used between the
433 NFS modules in the kernel. As such, they must all be upgraded
434 simultaneously. I will do a version bump for this.
437 The root certificates of the Mozilla CA Certificate Store have been
438 imported into the base system and can be managed with the certctl(8)
439 utility. If you have installed the security/ca_root_nss port or package
440 with the ETCSYMLINK option (the default), be advised that there may be
441 differences between those included in the port and those included in
442 base due to differences in nss branch used as well as general update
443 frequency. Note also that certctl(8) cannot manage certs in the
444 format used by the security/ca_root_nss port.
447 The amd(8) automount daemon has been disabled by default, and will be
448 removed in the future. As of FreeBSD 10.1 the autofs(5) is available
452 The nctgpio and wbwd drivers have been moved to the superio bus.
453 If you have one of these drivers in a kernel configuration, then
454 you should add device superio to it. If you use one of these drivers
455 as a module and you compile a custom set of modules, then you should
456 add superio to the set.
459 KPIs for network drivers to access interface addresses have changed.
460 Users need to recompile NIC driver modules together with kernel.
463 The net.link.tap.user_open sysctl no longer prevents user opening of
464 already created /dev/tapNN devices. Access is still controlled by
465 node permissions, just like tun devices. The net.link.tap.user_open
466 sysctl is now used only to allow users to perform devfs cloning of
467 tap devices, and the subsequent open may not succeed if the user is not
468 in the appropriate group. This sysctl may be deprecated/removed
469 completely in the future.
472 mips, powerpc, and sparc64 are no longer built as part of
473 universe / tinderbox unless MAKE_OBSOLETE_GCC is defined. If
474 not defined, mips, powerpc, and sparc64 builds will look for
475 the xtoolchain binaries and if installed use them for universe
476 builds. As llvm 9.0 becomes vetted for these architectures, they
477 will be removed from the list.
480 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
481 been upgraded to 9.0.0. Please see the 20141231 entry below for
482 information about prerequisites and upgrading, if you are not already
483 using clang 3.5.0 or higher.
486 The hpt27xx, hptmv, hptnr, and hptrr drivers have been removed from
487 GENERIC. They are available as modules and can be loaded by adding
488 to /boot/loader.conf hpt27xx_load="YES", hptmv_load="YES",
489 hptnr_load="YES", or hptrr_load="YES", respectively.
492 ntpd no longer by default locks its pages in memory, allowing them
493 to be paged out by the kernel. Use rlimit memlock to restore
494 historic BSD behaviour. For example, add "rlimit memlock 32"
495 to ntp.conf to lock up to 32 MB of ntpd address space in memory.
498 Several of ping6's options have been renamed for better consistency
499 with ping. If you use any of -ARWXaghmrtwx, you must update your
500 scripts. See ping6(8) for details.
503 The vfs.fusefs.sync_unmount and vfs.fusefs.init_backgrounded sysctls
504 and the "-o sync_unmount" and "-o init_backgrounded" mount options have
505 been removed from mount_fusefs(8). You can safely remove them from
506 your scripts, because they had no effect.
508 The vfs.fusefs.fix_broken_io, vfs.fusefs.sync_resize,
509 vfs.fusefs.refresh_size, vfs.fusefs.mmap_enable,
510 vfs.fusefs.reclaim_revoked, and vfs.fusefs.data_cache_invalidate
511 sysctls have been removed. If you felt the need to set any of them to
512 a non-default value, please tell asomers@FreeBSD.org why.
515 Default permissions on the /var/account/acct file (and copies of it
516 rotated by periodic daily scripts) are changed from 0644 to 0640
517 because the file contains sensitive information that should not be
518 world-readable. If the /var/account directory must be created by
519 rc.d/accounting, the mode used is now 0750. Admins who use the
520 accounting feature are encouraged to change the mode of an existing
521 /var/account directory to 0750 or 0700.
524 Entropy collection and the /dev/random device are no longer optional
525 components. The "device random" option has been removed.
526 Implementations of distilling algorithms can still be made loadable
527 with "options RANDOM_LOADABLE" (e.g., random_fortuna.ko).
530 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
531 been upgraded to 8.0.1. Please see the 20141231 entry below for
532 information about prerequisites and upgrading, if you are not already
533 using clang 3.5.0 or higher.
536 A fix was applied to i386 kernel modules to avoid panics with
537 dpcpu or vnet. Users need to recompile i386 kernel modules
538 having pcpu or vnet sections or they will refuse to load.
541 User-wired pages now have their own counter,
542 vm.stats.vm.v_user_wire_count. The vm.max_wired sysctl was renamed
543 to vm.max_user_wired and changed from an unsigned int to an unsigned
544 long. bhyve VMs wired with the -S are now subject to the user
545 wiring limit; the vm.max_user_wired sysctl may need to be tuned to
546 avoid running into the limit.
549 The IPSEC option has been removed from GENERIC. Users requiring
550 ipsec(4) must now load the ipsec(4) kernel module.
553 The tap(4) driver has been folded into tun(4), and the module has been
554 renamed to tuntap. You should update any kld_list="if_tap" or
555 kld_list="if_tun" entries in /etc/rc.conf, if_tap_load="YES" or
556 if_tun_load="YES" entries in /boot/loader.conf to load the if_tuntap
557 module instead, and "device tap" or "device tun" entries in kernel
558 config files to select the tuntap device instead.
561 The following knobs have been added related to tradeoffs between
562 safe use of the random device and availability in the absence of
565 kern.random.initial_seeding.bypass_before_seeding: tunable; set
566 non-zero to bypass the random device prior to seeding, or zero to
567 block random requests until the random device is initially seeded.
568 For now, set to 1 (unsafe) by default to restore pre-r346250 boot
569 availability properties.
571 kern.random.initial_seeding.read_random_bypassed_before_seeding:
572 read-only diagnostic sysctl that is set when bypass is enabled and
573 read_random(9) is bypassed, to enable programmatic handling of this
574 initial condition, if desired.
576 kern.random.initial_seeding.arc4random_bypassed_before_seeding:
577 Similar to the above, but for arc4random(9) initial seeding.
579 kern.random.initial_seeding.disable_bypass_warnings: tunable; set
580 non-zero to disable warnings in dmesg when the same conditions are
581 met as for the diagnostic sysctls above. Defaults to zero, i.e.,
582 produce warnings in dmesg when the conditions are met.
585 The loadable random module KPI has changed; the random_infra_init()
586 routine now requires a 3rd function pointer for a bool (*)(void)
587 method that returns true if the random device is seeded (and
588 therefore unblocked).
591 r345895 reverts r320698. This implies that an nfsuserd(8) daemon
592 built from head sources between r320757 (July 6, 2017) and
593 r338192 (Aug. 22, 2018) will not work unless the "-use-udpsock"
594 is added to the command line.
595 nfsuserd daemons built from head sources that are post-r338192 are
596 not affected and should continue to work.
599 The fuse(4) module has been renamed to fusefs(4) for consistency with
600 other filesystems. You should update any kld_load="fuse" entries in
601 /etc/rc.conf, fuse_load="YES" entries in /boot/loader.conf, and
602 "options FUSE" entries in kernel config files.
605 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
606 8.0.0. Please see the 20141231 entry below for information about
607 prerequisites and upgrading, if you are not already using clang 3.5.0
611 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
612 compiled into your custom kernel, add 'device xz' statement to the
616 drm and drm2 have been removed from the tree. Please see
617 https://wiki.freebsd.org/Graphics for the latest information on
618 migrating to the drm ports.
621 Iflib is no longer unconditionally compiled into the kernel. Drivers
622 using iflib and statically compiled into the kernel, now require
623 the 'device iflib' config option. For the same drivers loaded as
624 modules on kernels not having 'device iflib', the iflib.ko module
625 is loaded automatically.
628 The IEEE80211_AMPDU_AGE and AH_SUPPORT_AR5416 kernel configuration
629 options no longer exist since r343219 and r343427 respectively;
630 nothing uses them, so they should be just removed from custom
634 r342635 changes the way efibootmgr(8) works by requiring users to add
635 the -b (bootnum) parameter for commands where the bootnum was previously
636 specified with each option. For example 'efibootmgr -B 0001' is now
637 'efibootmgr -B -b 0001'.
640 r342286 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
641 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
642 servers that have vfs.nfsd.nfs_privport set will only allow mounts
643 from clients using a reserved port#. Since both the FreeBSD and Linux
644 NFSv4 clients use reserved port#s by default, this should not affect
648 The XLP config has been removed. We can't support 64-bit atomics in this
649 kernel because it is running in 32-bit mode. XLP users must transition
650 to running a 64-bit kernel (XLP64 or XLPN32).
652 The mips GXEMUL support has been removed from FreeBSD. MALTA* + qemu is
653 the preferred emulator today and we don't need two different ones.
655 The old sibyte / swarm / Broadcom BCM1250 support has been
656 removed from the mips port.
659 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
660 7.0.1. Please see the 20141231 entry below for information about
661 prerequisites and upgrading, if you are not already using clang 3.5.0
665 Remove the timed and netdate programs from the base tree. Setting
666 the time with these daemons has been obsolete for over a decade.
669 On amd64, arm64 and armv7 (architectures that install LLVM's ld.lld
670 linker as /usr/bin/ld) GNU ld is no longer installed as ld.bfd, as
671 it produces broken binaries when ifuncs are in use. Users needing
672 GNU ld should install the binutils port or package.
675 The BSD crtbegin and crtend code has been enabled by default. It has
676 had extensive testing on amd64, arm64, and i386. It can be disabled
677 by building a world with -DWITHOUT_BSD_CRTBEGIN.
680 The set of CTM commands (ctm, ctm_smail, ctm_rmail, ctm_dequeue)
681 has been converted to a port (misc/ctm) and will be removed from
682 FreeBSD-13. It is available as a package (ctm) for all supported
686 The default newsyslog.conf(5) file has been changed to only include
687 files in /etc/newsyslog.conf.d/ and /usr/local/etc/newsyslog.conf.d/ if
688 the filenames end in '.conf' and do not begin with a '.'.
690 You should check the configuration files in these two directories match
691 this naming convention. You can verify which configuration files are
692 being included using the command:
696 Ports for the DRM modules have been simplified. Now, amd64 users should
697 just install the drm-kmod port. All others should install
700 Graphics hardware that's newer than about 2010 usually works with
701 drm-kmod. For hardware older than 2013, however, some users will need
702 to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older
703 than 2008 usually only works in drm-legacy-kmod. The graphics team can
704 only commit to hardware made since 2013 due to the complexity of the
705 market and difficulty to test all the older cards effectively. If you
706 have hardware supported by drm-kmod, you are strongly encouraged to use
707 that as you will get better support.
709 Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined
710 elsewhere, the drm and drm2 modules will be eliminated from the src base
711 soon (with a limited exception for arm). Please update to the package
712 asap and report any issues to x11@freebsd.org.
714 Generally, anybody using the drm*-kmod packages should add
715 WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty
716 cross-threading surprises, especially with automatic driver
717 loading from X11 startup. These will become the defaults in 13-current
721 The ixlv(4) driver has been renamed to iavf(4). As a consequence,
722 custom kernel and module loading configuration files must be updated
723 accordingly. Moreover, interfaces previous presented as ixlvN to the
724 system are now exposed as iavfN and network configuration files must
725 be adjusted as necessary.
728 OpenSSL has been updated to version 1.1.1. This update included
729 additional various API changes throughout the base system. It is
730 important to rebuild third-party software after upgrading. The value
731 of __FreeBSD_version has been bumped accordingly.
734 The legacy DRM modules and drivers have now been added to the loader's
735 module blacklist, in favor of loading them with kld_list in rc.conf(5).
736 The module blacklist may be overridden with the loader.conf(5)
737 'module_blacklist' variable, but loading them via rc.conf(5) is strongly
741 The cam(4) based nda(4) driver will be used over nvd(4) by default on
742 powerpc64. You may set 'options NVME_USE_NVD=1' in your kernel conf or
743 loader tunable 'hw.nvme.use_nvd=1' if you wish to use the existing
744 driver. Make sure to edit /boot/etc/kboot.conf and fstab to use the
748 Reproducible build mode is now on by default, in preparation for
749 FreeBSD 12.0. This eliminates build metadata such as the user,
750 host, and time from the kernel (and uname), unless the working tree
751 corresponds to a modified checkout from a version control system.
752 The previous behavior can be obtained by setting the /etc/src.conf
753 knob WITHOUT_REPRODUCIBLE_BUILD.
756 The Yarrow CSPRNG has been removed from the kernel as it has not been
757 supported by its designers since at least 2003. Fortuna has been the
758 default since FreeBSD-11.
761 devctl freeze/thaw have gone into the tree, the rc scripts have been
762 updated to use them and devmatch has been changed. You should update
763 kernel, userland and rc scripts all at the same time.
766 The default interpreter has been switched from 4th to Lua.
767 LOADER_DEFAULT_INTERP, documented in build(7), will override the default
768 interpreter. If you have custom FORTH code you will need to set
769 LOADER_DEFAULT_INTERP=4th (valid values are 4th, lua or simp) in
770 src.conf for the build. This will create default hard links between
771 loader and loader_4th instead of loader and loader_lua, the new default.
772 If you are using UEFI it will create the proper hard link to loader.efi.
774 bhyve uses userboot.so. It remains 4th-only until some issues are solved
775 regarding coexisting with multiple versions of FreeBSD are resolved.
778 ls(1) now respects the COLORTERM environment variable used in other
779 systems and software to indicate that a colored terminal is both
780 supported and desired. If ls(1) is suddenly emitting colors, they may
781 be disabled again by either removing the unwanted COLORTERM from your
782 environment, or using `ls --color=never`. The ls(1) specific CLICOLOR
783 may not be observed in a future release.
786 The default pager for most commands has been changed to "less". To
787 restore the old behavior, set PAGER="more" and MANPAGER="more -s" in
791 The jedec_ts(4) driver has been removed. A superset of its functionality
792 is available in the jedec_dimm(4) driver, and the manpage for that
793 driver includes migration instructions. If you have "device jedec_ts"
794 in your kernel configuration file, it must be removed.
797 amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default.
798 This should have no effect if the kernel is booted via BIOS/legacy boot.
799 EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system
800 has a buggy firmware that prevents a successful boot due to use of
804 Atmel AT91RM9200 and AT91SAM9, Cavium CNS 11xx and XScale
805 support has been removed from the tree. These ports were
806 obsolete and/or known to be broken for many years.
809 loader.efi has been augmented to participate more fully in the
810 UEFI boot manager protocol. loader.efi will now look at the
811 BootXXXX environment variable to determine if a specific kernel
812 or root partition was specified. XXXX is derived from BootCurrent.
813 efibootmgr(8) manages these standard UEFI variables.
816 zfsloader's functionality has now been folded into loader.
817 zfsloader is no longer necessary once you've updated your
818 boot blocks. For a transition period, we will install a
819 hardlink for zfsloader to loader to allow a smooth transition
820 until the boot blocks can be updated (hard link because old
821 zfs boot blocks don't understand symlinks).
824 ARM64 now have efifb support, if you want to have serial console
825 on your arm64 board when an screen is connected and the bootloader
826 setup a frame buffer for us to use, just add :
830 For Raspberry Pi 3 (RPI) users, this is needed even if you don't have
831 an screen connected as the firmware will setup a frame buffer are that
832 u-boot will expose as an EFI frame buffer.
835 New uid:gid added, ntpd:ntpd (123:123). Be sure to run mergemaster
836 or take steps to update /etc/passwd before doing installworld on
837 existing systems. Do not skip the "mergemaster -Fp" step before
838 installworld, as described in the update procedures near the bottom
839 of this document. Also, rc.d/ntpd now starts ntpd(8) as user ntpd
840 if the new mac_ntpd(4) policy is available, unless ntpd_flags or
841 the ntp config file contain options that change file/dir locations.
842 When such options (e.g., "statsdir" or "crypto") are used, ntpd can
843 still be run as non-root by setting ntpd_user=ntpd in rc.conf, after
844 taking steps to ensure that all required files/dirs are accessible
848 Big endian arm support has been removed.
851 The static environment setup in kernel configs is no longer mutually
852 exclusive with the loader(8) environment by default. In order to
853 restore the previous default behavior of disabling the loader(8)
854 environment if a static environment is present, you must specify
855 loader_env.disabled=1 in the static environment.
858 The ABI of syscalls used by management tools like sockstat and
859 netstat has been broken to allow 32-bit binaries to work on
860 64-bit kernels without modification. These programs will need
861 to match the kernel in order to function. External programs may
862 require minor modifications to accommodate a change of type in
863 structures from pointers to 64-bit virtual addresses.
866 On i386 and amd64 atomics are now inlined. Out of tree modules using
867 atomics will need to be rebuilt.
870 The '%I' format in the kern.corefile sysctl limits the number of
871 core files that a process can generate to the number stored in the
872 debug.ncores sysctl. The '%I' format is replaced by the single digit
873 index. Previously, if all indexes were taken the kernel would overwrite
874 only a core file with the highest index in a filename.
875 Currently the system will create a new core file if there is a free
876 index or if all slots are taken it will overwrite the oldest one.
879 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
880 6.0.1. Please see the 20141231 entry below for information about
881 prerequisites and upgrading, if you are not already using clang 3.5.0
885 r335753 introduced a new quoting method. However, etc/devd/devmatch.conf
886 needed to be changed to work with it. This change was made with r335763
887 and requires a mergemaster / etcupdate / etc to update the installed
891 r334930 changed the interface between the NFS modules, so they all
892 need to be rebuilt. r335018 did a __FreeBSD_version bump for this.
895 As of r334391 lld is the default amd64 system linker; it is installed
896 as /usr/bin/ld. Kernel build workarounds (see 20180510 entry) are no
900 The kernel / userland interface for devinfo changed, so you'll
901 need a new kernel and userland as a pair for it to work (rebuilding
902 lib/libdevinfo is all that's required). devinfo and devmatch will
903 not work, but everything else will when there's a mismatch.
906 The on-disk format for hwpmc callchain records has changed to include
907 threadid corresponding to a given record. This changes the field offsets
908 and thus requires that libpmcstat be rebuilt before using a kernel
912 The vxge(4) driver has been removed. This driver was introduced into
913 HEAD one week before the Exar left the Ethernet market and is not
914 known to be used. If you have device vxge in your kernel config file
918 The amd64 kernel now requires a ld that supports ifunc to produce a
919 working kernel, either lld or a newer binutils. lld is built by default
920 on amd64, and the 'buildkernel' target uses it automatically. However,
921 it is not the default linker, so building the kernel the traditional
922 way requires LD=ld.lld on the command line (or LD=/usr/local/bin/ld for
923 binutils port/package). lld will soon be default, and this requirement
926 NOTE: As of r334391 lld is the default system linker on amd64, and no
927 workaround is necessary.
930 The nxge(4) driver has been removed. This driver was for PCI-X 10g
931 cards made by s2io/Neterion. The company was acquired by Exar and
932 no longer sells or supports Ethernet products. If you have device
933 nxge in your kernel config file it must be removed.
936 The tz database (tzdb) has been updated to 2018e. This version more
937 correctly models time stamps in time zones with negative DST such as
938 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
939 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
940 time zone abbreviations and the tm_isdst flag.
943 The ixgb(4) driver has been removed. This driver was for an early and
944 uncommon legacy PCI 10GbE for a single ASIC, Intel 82597EX. Intel
945 quickly shifted to the long lived ixgbe family. If you have device
946 ixgb in your kernel config file it must be removed.
949 The lmc(4) driver has been removed. This was a WAN interface
950 card that was already reportedly rare in 2003, and had an ambiguous
951 license. If you have device lmc in your kernel config file it must
955 Support for Arcnet networks has been removed. If you have device
956 arcnet or device cm in your kernel config file they must be
960 Support for FDDI networks has been removed. If you have device
961 fddi or device fpa in your kernel config file they must be
965 In addition to supporting RFC 3164 formatted messages, the
966 syslogd(8) service is now capable of parsing RFC 5424 formatted
967 log messages. The main benefit of using RFC 5424 is that clients
968 may now send log messages with timestamps containing year numbers,
969 microseconds and time zone offsets.
971 Similarly, the syslog(3) C library function has been altered to
972 send RFC 5424 formatted messages to the local system logging
973 daemon. On systems using syslogd(8), this change should have no
974 negative impact, as long as syslogd(8) and the C library are
975 updated at the same time. On systems using a different system
976 logging daemon, it may be necessary to make configuration
977 adjustments, depending on the software used.
979 When using syslog-ng, add the 'syslog-protocol' flag to local
980 input sources to enable parsing of RFC 5424 formatted messages:
983 unix-dgram("/var/run/log" flags(syslog-protocol));
986 When using rsyslog, disable the 'SysSock.UseSpecialParser' option
987 of the 'imuxsock' module to let messages be processed by the
988 regular RFC 3164/5424 parsing pipeline:
990 module(load="imuxsock" SysSock.UseSpecialParser="off")
992 Do note that these changes only affect communication between local
993 applications and syslogd(8). The format that syslogd(8) uses to
994 store messages on disk or forward messages to other systems
995 remains unchanged. syslogd(8) still uses RFC 3164 for these
996 purposes. Options to customize this behaviour will be added in the
997 future. Utilities that process log files stored in /var/log are
998 thus expected to continue to function as before.
1000 __FreeBSD_version has been incremented to 1200061 to denote this
1004 Support for token ring networks has been removed. If you
1005 have "device token" in your kernel config you should remove
1006 it. No device drivers supported token ring.
1009 makefs was modified to be able to tag ISO9660 El Torito boot catalog
1010 entries as EFI instead of overloading the i386 tag as done previously.
1011 The amd64 mkisoimages.sh script used to build amd64 ISO images for
1012 release was updated to use this. This may mean that makefs must be
1013 updated before "make cdrom" can be run in the release directory. This
1014 should be as simple as:
1016 $ cd $SRCDIR/usr.sbin/makefs
1017 $ make depend all install
1020 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for
1021 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf.
1022 Co-existence for the transition period will come shortly. Booting is a
1023 complex environment and test coverage for Lua-enabled loaders has been
1024 thin, so it would be prudent to assume it might not work and make
1025 provisions for backup boot methods.
1028 devmatch functionality has been turned on in devd. It will automatically
1029 load drivers for unattached devices. This may cause unexpected drivers
1030 to be loaded. Please report any problems to current@ and
1034 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
1035 6.0.0. Please see the 20141231 entry below for information about
1036 prerequisites and upgrading, if you are not already using clang 3.5.0
1040 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker.
1041 This means it is used to link the kernel and userland libraries and
1042 executables, but is not yet installed as /usr/bin/ld by default.
1044 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set
1045 WITHOUT_LLD_BOOTSTRAP=yes
1048 On i386, pmtimer has been removed. Its functionality has been folded
1049 into apm. It was a no-op on ACPI in current for a while now (but was
1050 still needed on i386 in FreeBSD 11 and earlier). Users may need to
1051 remove it from kernel config files.
1054 The use of RSS hash from the network card aka flowid has been
1055 disabled by default for lagg(4) as it's currently incompatible with
1056 the lacp and loadbalance protocols.
1058 This can be re-enabled by setting the following in loader.conf:
1059 net.link.lagg.default_use_flowid="1"
1062 The SW_WATCHDOG option is no longer necessary to enable the
1063 hardclock-based software watchdog if no hardware watchdog is
1064 configured. As before, SW_WATCHDOG will cause the software
1065 watchdog to be enabled even if a hardware watchdog is configured.
1068 r326887 fixes the issue described in the 20171214 UPDATING entry.
1069 r326888 flips the switch back to building GELI support always.
1072 r362593 broke ZFS + GELI support for reasons unknown. However,
1073 it also broke ZFS support generally, so GELI has been turned off
1074 by default as the lesser evil in r326857. If you boot off ZFS and/or
1075 GELI, it might not be a good time to update.
1078 PowerPC users must update loader(8) by rebuilding world before
1079 installing a new kernel, as the protocol connecting them has
1080 changed. Without the update, loader metadata will not be passed
1081 successfully to the kernel and users will have to enter their
1082 root partition at the kernel mountroot prompt to continue booting.
1083 Newer versions of loader can boot old kernels without issue.
1086 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to
1087 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
1088 to WITH/OUT_LOADER_GELI.
1091 The naive and non-compliant support of posix_fallocate(2) in ZFS
1092 has been removed as of r325320. The system call now returns EINVAL
1093 when used on a ZFS file. Although the new behavior complies with the
1094 standard, some consumers are not prepared to cope with it.
1095 One known victim is lld prior to r325420.
1098 Building in a FreeBSD src checkout will automatically create object
1099 directories now rather than store files in the current directory if
1100 'make obj' was not ran. Calling 'make obj' is no longer necessary.
1101 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in
1102 /etc/src-env.conf (not /etc/src.conf), or passing the option in the
1106 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native
1107 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified
1108 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old
1109 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf,
1110 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building.
1111 The UNIFIED_OBJDIR option is a transitional feature that will be
1112 removed for 12.0 release; please migrate to the new format for any
1113 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather
1114 than hardcoding paths.
1117 The native-xtools target no longer installs the files by default to the
1118 OBJDIR. Use the native-xtools-install target with a DESTDIR to install
1119 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin.
1122 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT
1123 options are changing from controlling the build if defined / undefined
1124 to controlling the build with explicit 'yes' or 'no' values. They will
1125 shift to WITH/WITHOUT options to match other options in the system.
1128 libstand has turned into a private library for sys/boot use only.
1129 It is no longer supported as a public interface outside of sys/boot.
1132 The arm port has split armv6 into armv6 and armv7. armv7 is now
1133 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system
1134 and are running a kernel from before r324363, you will need to add
1135 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build.
1138 When building multiple kernels using KERNCONF, non-existent KERNCONF
1139 files will produce an error and buildkernel will fail. Previously
1140 missing KERNCONF files silently failed giving no indication as to
1141 why, only to subsequently discover during installkernel that the
1142 desired kernel was never built in the first place.
1145 The default serial number format for CTL LUNs has changed. This will
1146 affect users who use /dev/diskid/* device nodes, or whose FibreChannel
1147 or iSCSI clients care about their LUNs' serial numbers. Users who
1148 require serial number stability should hardcode serial numbers in
1152 For 32-bit arm compiled for hard-float support, soft-floating point
1153 binaries now always get their shared libraries from
1154 LD_SOFT_LIBRARY_PATH (in the past, this was only used if
1155 /usr/libsoft also existed). Only users with a hard-float ld.so, but
1156 soft-float everything else should be affected.
1159 The geli password typed at boot is now hidden. To restore the previous
1160 behavior, see geli(8) for configuration options.
1163 Move PMTUD blackhole counters to TCPSTATS and remove them from bare
1164 sysctl values. Minor nit, but requires a rebuild of both world/kernel
1168 "make check" behavior (made in ^/head@r295380) has been changed to
1169 execute from a limited sandbox, as opposed to executing from
1173 - The "beforecheck" and "aftercheck" targets are now specified.
1174 - ${CHECKDIR} (added in commit noted above) has been removed.
1175 - Legacy behavior can be enabled by setting
1176 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment.
1178 If the limited sandbox mode is enabled, "make check" will execute
1179 "make distribution", then install, execute the tests, and clean up the
1180 sandbox if successful.
1182 The "make distribution" and "make install" targets are typically run as
1183 root to set appropriate permissions and ownership at installation time.
1184 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the
1185 environment if executing "make check" with limited sandbox mode using
1186 an unprivileged user.
1189 Since the switch to GPT disk labels, fsck for UFS/FFS has been
1190 unable to automatically find alternate superblocks. As of r322297,
1191 the information needed to find alternate superblocks has been
1192 moved to the end of the area reserved for the boot block.
1193 Filesystems created with a newfs of this vintage or later
1194 will create the recovery information. If you have a filesystem
1195 created prior to this change and wish to have a recovery block
1196 created for your filesystem, you can do so by running fsck in
1197 foreground mode (i.e., do not use the -p or -y options). As it
1198 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
1199 to which you should answer yes.
1202 As of r321665, an NFSv4 server configuration that services
1203 Kerberos mounts or clients that do not support the uid/gid in
1204 owner/owner_group string capability, must explicitly enable
1205 the nfsuserd daemon by adding nfsuserd_enable="YES" to the
1206 machine's /etc/rc.conf file.
1209 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
1210 Please see the 20141231 entry below for information about prerequisites
1211 and upgrading, if you are not already using clang 3.5.0 or higher.
1214 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the
1215 r-commands (rlogin, rsh, etc.) to be built with the base system.
1218 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is
1219 a very major ABI incompatible change, so users of FreeBSD/powerpc must
1220 be careful when performing source upgrades. It is best to run
1221 'make installworld' from an alternate root system, either a live
1222 CD/memory stick, or a temporary root partition. Additionally, all ports
1223 must be recompiled. powerpc64 is largely unaffected, except in the case
1224 of 32-bit compatibility. All 32-bit binaries will be affected.
1227 Forward compatibility for the "ino64" project have been committed. This
1228 will allow most new binaries to run on older kernels in a limited
1229 fashion. This prevents many of the common foot-shooting actions in the
1230 upgrade as well as the limited ability to roll back the kernel across
1231 the ino64 upgrade. Complicated use cases may not work properly, though
1232 enough simpler ones work to allow recovery in most situations.
1235 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC
1236 if you require the GPL compiler.
1239 The internal ABI used for communication between the NFS kernel modules
1240 was changed by r320085, so __FreeBSD_version was bumped to
1241 ensure all the NFS related modules are updated together.
1244 The ABI of struct event was changed by extending the data
1245 member to 64bit and adding ext fields. For upgrade, same
1246 precautions as for the entry 20170523 "ino64" must be
1250 The GNU roff toolchain has been removed from base. To render manpages
1251 which are not supported by mandoc(1), man(1) can fallback on GNU roff
1252 from ports (and recommends to install it).
1253 To render roff(7) documents, consider using GNU roff from ports or the
1254 heirloom doctools roff toolchain from ports via pkg install groff or
1255 via pkg install heirloom-doctools.
1258 The ath(4) and ath_hal(4) modules now build piecemeal to allow for
1259 smaller runtime footprint builds. This is useful for embedded systems
1260 which only require one chipset support.
1262 If you load it as a module, make sure this is in /boot/loader.conf:
1266 This will load the HAL, all chip/RF backends and if_ath_pci.
1267 If you have if_ath_pci in /boot/loader.conf, ensure it is after
1268 if_ath or it will not load any HAL chipset support.
1270 If you want to selectively load things (eg on ye cheape ARM/MIPS
1271 platforms where RAM is at a premium) you should:
1274 * load the chip modules in question
1275 * load ath_rate, ath_dfs
1277 * load if_ath_pci and/or if_ath_ahb depending upon your particular
1278 bus bind type - this is where probe/attach is done.
1280 For further comments/feedback, poke adrian@ .
1283 The "ino64" 64-bit inode project has been committed, which extends
1284 a number of types to 64 bits. Upgrading in place requires care and
1285 adherence to the documented upgrade procedure.
1287 If using a custom kernel configuration ensure that the
1288 COMPAT_FREEBSD11 option is included (as during the upgrade the
1289 system will be running the ino64 kernel with the existing world).
1291 For the safest in-place upgrade begin by removing previous build
1292 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the full
1293 procedure documented below under the heading "To rebuild everything and
1294 install it on the current system." Specifically, a reboot is required
1295 after installing the new kernel before installing world. While an
1296 installworld normally works by accident from multiuser after rebooting
1297 the proper kernel, there are many cases where this will fail across this
1298 upgrade and installworld from single user is required.
1301 The NATM framework including the en(4), fatm(4), hatm(4), and
1302 patm(4) devices has been removed. Consumers should plan a
1303 migration before the end-of-life date for FreeBSD 11.
1306 GNU diff has been replaced by a BSD licensed diff. Some features of GNU
1307 diff has not been implemented, if those are needed a newer version of
1308 GNU diff is available via the diffutils package under the gdiff name.
1311 As of r316810 for ipfilter, keep frags is no longer assumed when
1312 keep state is specified in a rule. r316810 aligns ipfilter with
1313 documentation in man pages separating keep frags from keep state.
1314 This allows keep state to be specified without forcing keep frags
1315 and allows keep frags to be specified independently of keep state.
1316 To maintain previous behaviour, also specify keep frags with
1317 keep state (as documented in ipf.conf.5).
1320 arm64 builds now use the base system LLD 4.0.0 linker by default,
1321 instead of requiring that the aarch64-binutils port or package be
1322 installed. To continue using aarch64-binutils, set
1323 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
1326 The UDP optimization in entry 20160818 that added the sysctl
1327 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast
1328 packets will no longer be treated as L3 broadcast packets.
1331 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
1332 use any explicitly assigned loopback address available in the jail
1333 instead of using the first assigned address of the jail.
1336 The ctl.ko module no longer implements the iSCSI target frontend:
1337 cfiscsi.ko does instead.
1339 If building cfiscsi.ko as a kernel module, the module can be loaded
1340 via one of the following methods:
1341 - `cfiscsi_load="YES"` in loader.conf(5).
1342 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
1343 - ctladm(8)/ctld(8), when compiled with iSCSI support
1344 (`WITH_ISCSI=yes` in src.conf(5))
1346 Please see cfiscsi(4) for more details.
1349 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
1350 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
1351 same source (previously, the dependency of mmcsd.ko on mmc.ko was
1352 missing, but mmcsd.ko now will refuse to load if it is incompatible
1356 The syntax of ipfw(8) named states was changed to avoid ambiguity.
1357 If you have used named states in the firewall rules, you need to modify
1358 them after installworld and before rebooting. Now named states must
1359 be prefixed with colon.
1362 The old drm (sys/dev/drm/) drivers for i915 and radeon have been
1363 removed as the userland we provide cannot use them. The KMS version
1364 (sys/dev/drm2) supports the same hardware.
1367 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
1368 Please see the 20141231 entry below for information about prerequisites
1369 and upgrading, if you are not already using clang 3.5.0 or higher.
1372 The code that provides support for ZFS .zfs/ directory functionality
1373 has been reimplemented. It's not possible now to create a snapshot
1374 by mkdir under .zfs/snapshot/. That should be the only user visible
1378 EISA bus support has been removed. The WITH_EISA option is no longer
1382 MCA bus support has been removed.
1385 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed
1386 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC.
1389 The EM_MULTIQUEUE kernel configuration option is deprecated now that
1390 the em(4) driver conforms to iflib specifications.
1393 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via
1394 IFLIB. If you have a custom kernel configuration that excludes em(4)
1395 but you use igb(4), you need to re-add em(4) to your custom
1399 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
1400 Please see the 20141231 entry below for information about prerequisites
1401 and upgrading, if you are not already using clang 3.5.0 or higher.
1404 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
1405 Please see the 20141231 entry below for information about prerequisites
1406 and upgrading, if you are not already using clang 3.5.0 or higher.
1409 The layout of the pmap structure has changed for powerpc to put the pmap
1410 statistics at the front for all CPU variations. libkvm(3) and all tools
1411 that link against it need to be recompiled.
1414 isl(4) and cyapa(4) drivers now require a new driver,
1415 chromebook_platform(4), to work properly on Chromebook-class hardware.
1416 On other types of hardware the drivers may need to be configured using
1417 device hints. Please see the corresponding manual pages for details.
1420 The urtwn(4) driver was merged into rtwn(4) and now consists of
1421 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific
1423 Also, firmware for RTL8188CE was renamed due to possible name
1424 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B))
1427 GNU rcs has been removed from base. It is available as packages:
1428 - rcs: Latest GPLv3 GNU rcs version.
1429 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was
1433 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control
1434 modules now requires that the kernel configuration contain the
1435 TCP_HHOOK option. (This option is included in the GENERIC kernel.)
1438 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired.
1439 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy.
1442 Relocatable object files with the extension of .So have been renamed
1443 to use an extension of .pico instead. The purpose of this change is
1444 to avoid a name clash with shared libraries on case-insensitive file
1445 systems. On those file systems, foo.So is the same file as foo.so.
1448 GNU rcs has been turned off by default. It can (temporarily) be built
1449 again by adding WITH_RCS knob in src.conf.
1450 Otherwise, GNU rcs is available from packages:
1451 - rcs: Latest GPLv3 GNU rcs version.
1452 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base.
1455 The backup_uses_rcs functionality has been removed from rc.subr.
1458 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into
1459 two separate components, QUEUE_MACRO_DEBUG_TRACE and
1460 QUEUE_MACRO_DEBUG_TRASH. Define both for the original
1461 QUEUE_MACRO_DEBUG behavior.
1464 r304787 changed some ioctl interfaces between the iSCSI userspace
1465 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be
1466 rebuilt to work with new kernels. __FreeBSD_version has been bumped
1470 The UDP receive code has been updated to only treat incoming UDP
1471 packets that were addressed to an L2 broadcast address as L3
1472 broadcast packets. It is not expected that this will affect any
1473 standards-conforming UDP application. The new behaviour can be
1474 disabled by setting the sysctl net.inet.udp.require_l2_bcast to
1478 Remove the openbsd_poll system call.
1479 __FreeBSD_version has been bumped because of this.
1482 The stable/11 branch has been created from head@r302406.
1485 The libc stub for the pipe(2) system call has been replaced with
1486 a wrapper that calls the pipe2(2) system call and the pipe(2)
1487 system call is now only implemented by the kernels that include
1488 "options COMPAT_FREEBSD10" in their config file (this is the
1489 default). Users should ensure that this option is enabled in
1490 their kernel or upgrade userspace to r302092 before upgrading their
1494 CAM will now strip leading spaces from SCSI disks' serial numbers.
1495 This will affect users who create UFS filesystems on SCSI disks using
1496 those disk's diskid device nodes. For example, if /etc/fstab
1497 previously contained a line like
1498 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
1499 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
1500 transforms like gmirror may also be affected. ZFS users should
1504 The bitstring(3) API has been updated with new functionality and
1505 improved performance. But it is binary-incompatible with the old API.
1506 Objects built with the new headers may not be linked against objects
1507 built with the old headers.
1510 The brk and sbrk functions have been removed from libc on arm64.
1511 Binutils from ports has been updated to not link to these
1512 functions and should be updated to the latest version before
1513 installing a new libc.
1516 The armv6 port now defaults to hard float ABI. Limited support
1517 for running both hardfloat and soft float on the same system
1518 is available using the libraries installed with -DWITH_LIBSOFT.
1519 This has only been tested as an upgrade path for installworld
1520 and packages may fail or need manual intervention to run. New
1521 packages will be needed.
1523 To update an existing self-hosted armv6hf system, you must add
1524 TARGET_ARCH=armv6 on the make command line for both the build
1525 and the install steps.
1528 Kernel modules compiled outside of a kernel build now default to
1529 installing to /boot/modules instead of /boot/kernel. Many kernel
1530 modules built this way (such as those in ports) already overrode
1531 KMODDIR explicitly to install into /boot/modules. However,
1532 manually building and installing a module from /sys/modules will
1533 now install to /boot/modules instead of /boot/kernel.
1536 The CAM I/O scheduler has been committed to the kernel. There should be
1537 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
1538 list of known rogues that claim support for this but actually corrupt
1539 data is believed to be complete, be on the lookout for data
1540 corruption. The known rogue list is believed to be complete:
1542 o Crucial MX100, M550 drives with MU01 firmware.
1543 o Micron M510 and M550 drives with MU01 firmware.
1544 o Micron M500 prior to MU07 firmware
1545 o Samsung 830, 840, and 850 all firmwares
1546 o FCCT M500 all firmwares
1548 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
1549 with working NCQ TRIM. For Micron branded drives, see your sales rep for
1550 updated firmware. Black listed drives will work correctly because these
1551 drives work correctly so long as no NCQ TRIMs are sent to them. Given
1552 this list is the same as found in Linux, it's believed there are no
1553 other rogues in the market place. All other models from the above
1556 To be safe, if you are at all concerned, you can quirk each of your
1557 drives to prevent NCQ from being sent by setting:
1558 kern.cam.ada.X.quirks="0x2"
1559 in loader.conf. If the drive requires the 4k sector quirk, set the
1560 quirks entry to 0x3.
1563 The FAST_DEPEND build option has been removed and its functionality is
1564 now the one true way. The old mkdep(1) style of 'make depend' has
1565 been removed. See 20160311 for further details.
1568 Resource range types have grown from unsigned long to uintmax_t. All
1569 drivers, and anything using libdevinfo, need to be recompiled.
1572 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
1573 builds. It no longer runs mkdep(1) during 'make depend', and the
1574 'make depend' stage can safely be skipped now as it is auto ran
1575 when building 'make all' and will generate all SRCS and DPSRCS before
1576 building anything else. Dependencies are gathered at compile time with
1577 -MF flags kept in separate .depend files per object file. Users should
1578 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
1579 stale .depend files.
1582 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
1583 kernel modules. Therefore, if you load any kernel modules at boot time,
1584 please install the boot loaders after you install the kernel, but before
1588 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1589 make installkernel KERNCONF=YOUR_KERNEL_HERE
1590 make -C sys/boot install
1591 <reboot in single user>
1593 Then follow the usual steps, described in the General Notes section,
1597 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
1598 see the 20141231 entry below for information about prerequisites and
1599 upgrading, if you are not already using clang 3.5.0 or higher.
1602 The AIO subsystem is now a standard part of the kernel. The
1603 VFS_AIO kernel option and aio.ko kernel module have been removed.
1604 Due to stability concerns, asynchronous I/O requests are only
1605 permitted on sockets and raw disks by default. To enable
1606 asynchronous I/O requests on all file types, set the
1607 vfs.aio.enable_unsafe sysctl to a non-zero value.
1610 The ELF object manipulation tool objcopy is now provided by the
1611 ELF Tool Chain project rather than by GNU binutils. It should be a
1612 drop-in replacement, with the addition of arm64 support. The
1613 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
1614 to obtain the GNU version if necessary.
1617 Building ZFS pools on top of zvols is prohibited by default. That
1618 feature has never worked safely; it's always been prone to deadlocks.
1619 Using a zvol as the backing store for a VM guest's virtual disk will
1620 still work, even if the guest is using ZFS. Legacy behavior can be
1621 restored by setting vfs.zfs.vol.recursive=1.
1624 The NONE and HPN patches has been removed from OpenSSH. They are
1625 still available in the security/openssh-portable port.
1628 With the addition of ypldap(8), a new _ypldap user is now required
1629 during installworld. "mergemaster -p" can be used to add the user
1630 prior to installworld, as documented in the handbook.
1633 The tftp loader (pxeboot) now uses the option root-path directive. As a
1634 consequence it no longer looks for a pxeboot.4th file on the tftp
1635 server. Instead it uses the regular /boot infrastructure as with the
1639 The code to start recording plug and play data into the modules has
1640 been committed. While the old tools will properly build a new kernel,
1641 a number of warnings about "unknown metadata record 4" will be produced
1642 for an older kldxref. To avoid such warnings, make sure to rebuild
1643 the kernel toolchain (or world). Make sure that you have r292078 or
1644 later when trying to build 292077 or later before rebuilding.
1647 Debug data files are now built by default with 'make buildworld' and
1648 installed with 'make installworld'. This facilitates debugging but
1649 requires more disk space both during the build and for the installed
1650 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
1654 r291527 changed the internal interface between the nfsd.ko and
1655 nfscommon.ko modules. As such, they must both be upgraded to-gether.
1656 __FreeBSD_version has been bumped because of this.
1659 Add support for unicode collation strings leads to a change of
1660 order of files listed by ls(1) for example. To get back to the old
1661 behaviour, set LC_COLLATE environment variable to "C".
1663 Databases administrators will need to reindex their databases given
1664 collation results will be different.
1666 Due to a bug in install(1) it is recommended to remove the ancient
1667 locales before running make installworld.
1669 rm -rf /usr/share/locale/*
1672 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
1673 libcrypto.so.7 or libssl.so.7 must be recompiled.
1676 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
1677 Kernel modules isp_2400_multi and isp_2500_multi were removed and
1678 should be replaced with isp_2400 and isp_2500 modules respectively.
1681 The build previously allowed using 'make -n' to not recurse into
1682 sub-directories while showing what commands would be executed, and
1683 'make -n -n' to recursively show commands. Now 'make -n' will recurse
1684 and 'make -N' will not.
1687 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
1688 and etcupdate will now use this file. A custom sendmail.cf is now
1689 updated via this mechanism rather than via installworld. If you had
1690 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
1691 want to remove the exclusion or change it to "always install".
1692 /etc/mail/sendmail.cf is now managed the same way regardless of
1693 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
1694 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
1697 Compatibility shims for legacy ATA device names have been removed.
1698 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
1699 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
1700 environment variables, /dev/ad* and /dev/ar* symbolic links.
1703 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
1704 Please see the 20141231 entry below for information about prerequisites
1705 and upgrading, if you are not already using clang 3.5.0 or higher.
1708 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
1709 and renamed from .symbols to .debug. This reduces the size requirements
1710 on the boot partition or file system and provides consistency with
1711 userland debug files.
1713 When using the supported kernel installation method the
1714 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
1715 as is done with /boot/kernel.
1717 Developers wishing to maintain the historical behavior of installing
1718 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
1721 The wireless drivers had undergone changes that remove the 'parent
1722 interface' from the ifconfig -l output. The rc.d network scripts
1723 used to check presence of a parent interface in the list, so old
1724 scripts would fail to start wireless networking. Thus, etcupdate(3)
1725 or mergemaster(8) run is required after kernel update, to update your
1726 rc.d scripts in /etc.
1729 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
1730 These configurations are now automatically interpreted as
1731 'scrub fragment reassemble'.
1734 Kernel-loadable modules for the random(4) device are back. To use
1735 them, the kernel must have
1738 options RANDOM_LOADABLE
1740 kldload(8) can then be used to load random_fortuna.ko
1741 or random_yarrow.ko. Please note that due to the indirect
1742 function calls that the loadable modules need to provide,
1743 the build-in variants will be slightly more efficient.
1745 The random(4) kernel option RANDOM_DUMMY has been retired due to
1746 unpopularity. It was not all that useful anyway.
1749 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
1750 Control over building the ELF Tool Chain tools is now provided by
1751 the WITHOUT_TOOLCHAIN knob.
1754 The polarity of Pulse Per Second (PPS) capture events with the
1755 uart(4) driver has been corrected. Prior to this change the PPS
1756 "assert" event corresponded to the trailing edge of a positive PPS
1757 pulse and the "clear" event was the leading edge of the next pulse.
1759 As the width of a PPS pulse in a typical GPS receiver is on the
1760 order of 1 millisecond, most users will not notice any significant
1761 difference with this change.
1763 Anyone who has compensated for the historical polarity reversal by
1764 configuring a negative offset equal to the pulse width will need to
1765 remove that workaround.
1768 The default group assigned to /dev/dri entries has been changed
1769 from 'wheel' to 'video' with the id of '44'. If you want to have
1770 access to the dri devices please add yourself to the video group
1773 # pw groupmod video -m $USER
1776 The menu.rc and loader.rc files will now be replaced during
1777 upgrades. Please migrate local changes to menu.rc.local and
1778 loader.rc.local instead.
1781 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
1782 strings and strip have been removed. The src.conf(5) knob
1783 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
1786 As ZFS requires more kernel stack pages than is the default on some
1787 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
1788 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
1790 Please consider using 'options KSTACK_PAGES=X' where X is greater
1791 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
1794 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
1795 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
1796 default, i.e., they will not contain "::". For example, instead
1797 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
1798 to have a more specific match, such as different map entries for
1799 IPv6:0:0 vs IPv6:0. This change requires that configuration
1800 data (including maps, files, classes, custom ruleset, etc.) must
1801 use the same format, so make certain such configuration data is
1802 upgrading. As a very simple check search for patterns like
1803 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
1804 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
1805 the cf option UseCompressedIPv6Addresses.
1808 The default kernel entropy-processing algorithm is now
1809 Fortuna, replacing Yarrow.
1811 Assuming you have 'device random' in your kernel config
1812 file, the configurations allow a kernel option to override
1813 this default. You may choose *ONE* of:
1815 options RANDOM_YARROW # Legacy /dev/random algorithm.
1816 options RANDOM_DUMMY # Blocking-only driver.
1818 If you have neither, you get Fortuna. For most people,
1819 read no further, Fortuna will give a /dev/random that works
1820 like it always used to, and the difference will be irrelevant.
1822 If you remove 'device random', you get *NO* kernel-processed
1823 entropy at all. This may be acceptable to folks building
1824 embedded systems, but has complications. Carry on reading,
1825 and it is assumed you know what you need.
1827 *PLEASE* read random(4) and random(9) if you are in the
1828 habit of tweaking kernel configs, and/or if you are a member
1829 of the embedded community, wanting specific and not-usual
1830 behaviour from your security subsystems.
1832 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
1833 random', you will NOT have a functioning /dev/random, and
1834 many cryptographic features will not work, including SSH.
1835 You may also find strange behaviour from the random(3) set
1836 of library functions, in particular sranddev(3), srandomdev(3)
1837 and arc4random(3). The reason for this is that the KERN_ARND
1838 sysctl only returns entropy if it thinks it has some to
1839 share, and with RANDOM_DUMMY or no 'device random' this
1843 An additional fix for the issue described in the 20150614 sendmail
1844 entry below has been committed in revision 284717.
1847 FreeBSD's old make (fmake) has been removed from the system. It is
1848 available as the devel/fmake port or via pkg install fmake.
1851 The fix for the issue described in the 20150614 sendmail entry
1852 below has been committed in revision 284436. The work
1853 around described in that entry is no longer needed unless the
1854 default setting is overridden by a confDH_PARAMETERS configuration
1855 setting of '5' or pointing to a 512 bit DH parameter file.
1858 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
1859 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
1860 and devel/kyua to version 0.20+ and adjust any calling code to work
1861 with Kyuafile and kyua.
1864 The import of openssl to address the FreeBSD-SA-15:10.openssl
1865 security advisory includes a change which rejects handshakes
1866 with DH parameters below 768 bits. sendmail releases prior
1867 to 8.15.2 (not yet released), defaulted to a 512 bit
1868 DH parameter setting for client connections. To work around
1869 this interoperability, sendmail can be configured to use a
1870 2048 bit DH parameter by:
1872 1. Edit /etc/mail/`hostname`.mc
1873 2. If a setting for confDH_PARAMETERS does not exist or
1874 exists and is set to a string beginning with '5',
1875 replace it with '2'.
1876 3. If a setting for confDH_PARAMETERS exists and is set to
1877 a file path, create a new file with:
1878 openssl dhparam -out /path/to/file 2048
1879 4. Rebuild the .cf file:
1880 cd /etc/mail/; make; make install
1881 5. Restart sendmail:
1882 cd /etc/mail/; make restart
1884 A sendmail patch is coming, at which time this file will be
1888 Generation of legacy formatted entries have been disabled by default
1889 in pwd_mkdb(8), as all base system consumers of the legacy formatted
1890 entries were converted to use the new format by default when the new,
1891 machine independent format have been added and supported since FreeBSD
1894 Please see the pwd_mkdb(8) manual page for further details.
1897 Clang and llvm have been upgraded to 3.6.1 release. Please see the
1898 20141231 entry below for information about prerequisites and upgrading,
1899 if you are not already using 3.5.0 or higher.
1902 TI platform code switched to using vendor DTS files and this update
1903 may break existing systems running on Beaglebone, Beaglebone Black,
1906 - dtb files should be regenerated/reinstalled. Filenames are the
1907 same but content is different now
1908 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
1909 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
1910 addressing scheme is now pin 25 on /dev/gpioc3.
1911 - Pandaboard: /etc/ttys should be updated, serial console device is
1912 now /dev/ttyu2, not /dev/ttyu0
1915 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
1916 If you need the GNU extension from groff soelim(1), install groff
1917 from package: pkg install groff, or via ports: textproc/groff.
1920 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
1921 defined in symlink(7); previously symlinks were silently ignored.
1924 The const qualifier has been removed from iconv(3) to comply with
1925 POSIX. The ports tree is aware of this from r384038 onwards.
1928 Libraries specified by LIBADD in Makefiles must have a corresponding
1929 DPADD_<lib> variable to ensure correct dependencies. This is now
1930 enforced in src.libnames.mk.
1933 From legacy ata(4) driver was removed support for SATA controllers
1934 supported by more functional drivers ahci(4), siis(4) and mvs(4).
1935 Kernel modules ataahci and ataadaptec were removed completely,
1936 replaced by ahci and mvs modules respectively.
1939 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
1940 the 20141231 entry below for information about prerequisites and
1941 upgrading, if you are not already using 3.5.0 or higher.
1944 The 32-bit PowerPC kernel has been changed to a position-independent
1945 executable. This can only be booted with a version of loader(8)
1946 newer than January 31, 2015, so make sure to update both world and
1947 kernel before rebooting.
1950 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
1951 but before r278950, the RNG was not seeded properly. Immediately
1952 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
1953 ssh keys or openssl keys) that were generated w/ a kernel from that
1954 range. This does not affect programs that directly used /dev/random
1955 or /dev/urandom. All userland uses of arc4random(3) are affected.
1958 The autofs(4) ABI was changed in order to restore binary compatibility
1959 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
1960 with the new kernel.
1963 The powerpc64 kernel has been changed to a position-independent
1964 executable. This can only be booted with a new version of loader(8),
1965 so make sure to update both world and kernel before rebooting.
1968 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
1969 only release, no new features have been added. Please see the 20141231
1970 entry below for information about prerequisites and upgrading, if you
1971 are not already using 3.5.0.
1974 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
1975 taken from the ELF Tool Chain project rather than GNU binutils. They
1976 should be drop-in replacements, with the addition of arm64 support.
1977 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
1978 binutils tools, if necessary. See 20150805 for updated information.
1981 The default Unbound configuration now enables remote control
1982 using a local socket. Users who have already enabled the
1983 local_unbound service should regenerate their configuration
1984 by running "service local_unbound setup" as root.
1987 The GNU texinfo and GNU info pages have been removed.
1988 To be able to view GNU info pages please install texinfo from ports.
1991 Clang, llvm and lldb have been upgraded to 3.5.0 release.
1993 As of this release, a prerequisite for building clang, llvm and lldb is
1994 a C++11 capable compiler and C++11 standard library. This means that to
1995 be able to successfully build the cross-tools stage of buildworld, with
1996 clang as the bootstrap compiler, your system compiler or cross compiler
1997 should either be clang 3.3 or later, or gcc 4.8 or later, and your
1998 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
2001 On any standard FreeBSD 10.x or 11.x installation, where clang and
2002 libc++ are on by default (that is, on x86 or arm), this should work out
2005 On 9.x installations where clang is enabled by default, e.g. on x86 and
2006 powerpc, libc++ will not be enabled by default, so libc++ should be
2007 built (with clang) and installed first. If both clang and libc++ are
2008 missing, build clang first, then use it to build libc++.
2010 On 8.x and earlier installations, upgrade to 9.x first, and then follow
2011 the instructions for 9.x above.
2013 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
2014 default, and do not build clang.
2016 Many embedded systems are resource constrained, and will not be able to
2017 build clang in a reasonable time, or in some cases at all. In those
2018 cases, cross building bootable systems on amd64 is a workaround.
2020 This new version of clang introduces a number of new warnings, of which
2021 the following are most likely to appear:
2025 This warns in two cases, for both C and C++:
2026 * When the code is trying to take the absolute value of an unsigned
2027 quantity, which is effectively a no-op, and almost never what was
2028 intended. The code should be fixed, if at all possible. If you are
2029 sure that the unsigned quantity can be safely cast to signed, without
2030 loss of information or undefined behavior, you can add an explicit
2031 cast, or disable the warning.
2033 * When the code is trying to take an absolute value, but the called
2034 abs() variant is for the wrong type, which can lead to truncation.
2035 If you want to disable the warning instead of fixing the code, please
2036 make sure that truncation will not occur, or it might lead to unwanted
2039 -Wtautological-undefined-compare and
2040 -Wundefined-bool-conversion
2042 These warn when C++ code is trying to compare 'this' against NULL, while
2043 'this' should never be NULL in well-defined C++ code. However, there is
2044 some legacy (pre C++11) code out there, which actively abuses this
2045 feature, which was less strictly defined in previous C++ versions.
2047 Squid and openjdk do this, for example. The warning can be turned off
2048 for C++98 and earlier, but compiling the code in C++11 mode might result
2049 in unexpected behavior; for example, the parts of the program that are
2050 unreachable could be optimized away.
2053 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
2054 kernel sources have been removed. The .h files remain, since some
2055 utilities include them. This will need to be fixed later.
2056 If "mount -t oldnfs ..." is attempted, it will fail.
2057 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
2058 the utilities will report errors.
2061 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
2062 directories to top level SUBDIR variable when their parent
2063 directory is included in LOCAL_DIRS. Users with build systems with
2064 such hierarchies and without SUBDIR entries in the parent
2065 directory Makefiles should add them or add the directories to
2069 faith(4) and faithd(8) have been removed from the base system. Faith
2070 has been obsolete for a very long time.
2073 vt(4), the new console driver, is enabled by default. It brings
2074 support for Unicode and double-width characters, as well as
2075 support for UEFI and integration with the KMS kernel video
2078 You may need to update your console settings in /etc/rc.conf,
2079 most probably the keymap. During boot, /etc/rc.d/syscons will
2080 indicate what you need to do.
2082 vt(4) still has issues and lacks some features compared to
2083 syscons(4). See the wiki for up-to-date information:
2084 https://wiki.freebsd.org/Newcons
2086 If you want to keep using syscons(4), you can do so by adding
2087 the following line to /boot/loader.conf:
2091 pjdfstest has been integrated into kyua as an opt-in test suite.
2092 Please see share/doc/pjdfstest/README for more details on how to
2096 gperf has been removed from the base system for architectures
2097 that use clang. Ports that require gperf will obtain it from the
2101 pjdfstest has been moved from tools/regression/pjdfstest to
2105 At svn r271982, The default linux compat kernel ABI has been adjusted
2106 to 2.6.18 in support of the linux-c6 compat ports infrastructure
2107 update. If you wish to continue using the linux-f10 compat ports,
2108 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
2109 encouraged to update their linux-compat packages to linux-c6 during
2110 their next update cycle.
2113 The ofwfb driver, used to provide a graphics console on PowerPC when
2114 using vt(4), no longer allows mmap() of all physical memory. This
2115 will prevent Xorg on PowerPC with some ATI graphics cards from
2116 initializing properly unless x11-servers/xorg-server is updated to
2120 The xdev targets have been converted to using TARGET and
2121 TARGET_ARCH instead of XDEV and XDEV_ARCH.
2124 The default unbound configuration has been modified to address
2125 issues with reverse lookups on networks that use private
2126 address ranges. If you use the local_unbound service, run
2127 "service local_unbound setup" as root to regenerate your
2128 configuration, then "service local_unbound reload" to load the
2132 The GNU texinfo and GNU info pages are not built and installed
2133 anymore, WITH_INFO knob has been added to allow to built and install
2135 UPDATE: see 20150102 entry on texinfo's removal
2138 The GNU readline library is now an INTERNALLIB - that is, it is
2139 statically linked into consumers (GDB and variants) in the base
2140 system, and the shared library is no longer installed. The
2141 devel/readline port is available for third party software that
2145 The Itanium architecture (ia64) has been removed from the list of
2146 known architectures. This is the first step in the removal of the
2150 Commit r268115 has added NFSv4.1 server support, merged from
2151 projects/nfsv4.1-server. Since this includes changes to the
2152 internal interfaces between the NFS related modules, a full
2153 build of the kernel and modules will be necessary.
2154 __FreeBSD_version has been bumped.
2157 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
2158 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
2159 which differs from the behaviour controlled by this knob.)
2162 Maximal length of the serial number in CTL was increased from 16 to
2163 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
2164 and ctld, need to be rebuilt to work with a new kernel.
2167 The libatf-c and libatf-c++ major versions were downgraded to 0 and
2168 1 respectively to match the upstream numbers. They were out of
2169 sync because, when they were originally added to FreeBSD, the
2170 upstream versions were not respected. These libraries are private
2171 and not yet built by default, so renumbering them should be a
2172 non-issue. However, unclean source trees will yield broken test
2173 programs once the operator executes "make delete-old-libs" after a
2174 "make installworld".
2176 Additionally, the atf-sh binary was made private by moving it into
2177 /usr/libexec/. Already-built shell test programs will keep the
2178 path to the old binary so they will break after "make delete-old"
2181 If you are using WITH_TESTS=yes (not the default), wipe the object
2182 tree and rebuild from scratch to prevent spurious test failures.
2183 This is only needed once: the misnumbered libraries and misplaced
2184 binaries have been added to OptionalObsoleteFiles.inc so they will
2185 be removed during a clean upgrade.
2188 Clang and llvm have been upgraded to 3.4.1 release.
2191 We bogusly installed src.opts.mk in /usr/share/mk. This file should
2192 be removed to avoid issues in the future (and has been added to
2196 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
2197 past, it affected all builds that used the bsd.*.mk files. The old
2198 behavior was a bug, but people may have relied upon it. To get this
2199 behavior back, you can .include /etc/src.conf from /etc/make.conf
2200 (which is still global and isn't changed). This also changes the
2201 behavior of incremental builds inside the tree of individual
2202 directories. Set MAKESYSPATH to ".../share/mk" to do that.
2203 Although this has survived make universe and some upgrade scenarios,
2204 other upgrade scenarios may have broken. At least one form of
2205 temporary breakage was fixed with MAKESYSPATH settings for buildworld
2206 as well... In cases where MAKESYSPATH isn't working with this
2207 setting, you'll need to set it to the full path to your tree.
2209 One side effect of all this cleaning up is that bsd.compiler.mk
2210 is no longer implicitly included by bsd.own.mk. If you wish to
2211 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
2215 The lindev device has been removed since /dev/full has been made a
2216 standard device. __FreeBSD_version has been bumped.
2219 The knob WITHOUT_VI was added to the base system, which controls
2220 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
2221 in order to reorder files share/termcap and didn't build ex(1) as a
2222 build tool, so building/installing with WITH_VI is highly advised for
2223 build hosts for older releases.
2225 This issue has been fixed in stable/9 and stable/10 in r277022 and
2226 r276991, respectively.
2229 The YES_HESIOD knob has been removed. It has been obsolete for
2230 a decade. Please move to using WITH_HESIOD instead or your builds
2231 will silently lack HESIOD.
2234 The uart(4) driver has been changed with respect to its handling
2235 of the low-level console. Previously the uart(4) driver prevented
2236 any process from changing the baudrate or the CLOCAL and HUPCL
2237 control flags. By removing the restrictions, operators can make
2238 changes to the serial console port without having to reboot.
2239 However, when getty(8) is started on the serial device that is
2240 associated with the low-level console, a misconfigured terminal
2241 line in /etc/ttys will now have a real impact.
2242 Before upgrading the kernel, make sure that /etc/ttys has the
2243 serial console device configured as 3wire without baudrate to
2244 preserve the previous behaviour. E.g:
2245 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
2248 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
2249 to improve performance. To re-enable it, if needed, run rpcbind
2250 with command line option -W.
2253 Switched back to the GPL dtc compiler due to updates in the upstream
2254 dts files not being supported by the BSDL dtc compiler. You will need
2255 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
2256 may result while building dtb files during a kernel build if you fail
2257 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
2260 Clang and llvm have been upgraded to 3.4 release.
2263 The nve(4) driver has been removed. Please use the nfe(4) driver
2264 for NVIDIA nForce MCP Ethernet adapters instead.
2267 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
2268 This could cause certain C++ applications using shared libraries built
2269 against the previous version of libc++ to crash. The incompatibility
2270 has now been fixed, but any C++ applications or shared libraries built
2271 between r261283 and r261801 should be recompiled.
2274 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
2275 capability mode support. Please note that enabling the feature in
2276 kernel is still highly recommended.
2279 OpenSSH is now built with sandbox support, and will use sandbox as
2280 the default privilege separation method. This requires Capsicum
2281 capability mode support in kernel.
2284 The libelf and libdwarf libraries have been updated to newer
2285 versions from upstream. Shared library version numbers for
2286 these two libraries were bumped. Any ports or binaries
2287 requiring these two libraries should be recompiled.
2288 __FreeBSD_version is bumped to 1100006.
2291 If a Makefile in a tests/ directory was auto-generating a Kyuafile
2292 instead of providing an explicit one, this would prevent such
2293 Makefile from providing its own Kyuafile in the future during
2294 NO_CLEAN builds. This has been fixed in the Makefiles but manual
2295 intervention is needed to clean an objdir if you use NO_CLEAN:
2296 # find /usr/obj -name Kyuafile | xargs rm -f
2299 The behavior of gss_pseudo_random() for the krb5 mechanism
2300 has changed, for applications requesting a longer random string
2301 than produced by the underlying enctype's pseudo-random() function.
2302 In particular, the random string produced from a session key of
2303 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
2304 be different at the 17th octet and later, after this change.
2305 The counter used in the PRF+ construction is now encoded as a
2306 big-endian integer in accordance with RFC 4402.
2307 __FreeBSD_version is bumped to 1100004.
2310 The WITHOUT_ATF build knob has been removed and its functionality
2311 has been subsumed into the more generic WITHOUT_TESTS. If you were
2312 using the former to disable the build of the ATF libraries, you
2313 should change your settings to use the latter.
2316 The default version of mtree is nmtree which is obtained from
2317 NetBSD. The output is generally the same, but may vary
2318 slightly. If you found you need identical output adding
2319 "-F freebsd9" to the command line should do the trick. For the
2320 time being, the old mtree is available as fmtree.
2323 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
2324 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
2325 1.1.4_8 and verify bsdyml not linked in, before running "make
2327 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
2329 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
2332 The stable/10 branch has been created in subversion from head
2339 Sometimes, obscure build problems are the result of environment
2340 poisoning. This can happen because the make utility reads its
2341 environment when searching for values for global variables. To run
2342 your build attempts in an "environmental clean room", prefix all make
2343 commands with 'env -i '. See the env(1) manual page for more details.
2344 Occasionally a build failure will occur with "make -j" due to a race
2345 condition. If this happens try building again without -j, and please
2346 report a bug if it happens consistently.
2348 When upgrading from one major version to another it is generally best to
2349 upgrade to the latest code in the currently installed branch first, then
2350 do an upgrade to the new branch. This is the best-tested upgrade path,
2351 and has the highest probability of being successful. Please try this
2352 approach if you encounter problems with a major version upgrade. Since
2353 the stable 4.x branch point, one has generally been able to upgrade from
2354 anywhere in the most recent stable branch to head / current (or even the
2355 last couple of stable branches). See the top of this file when there's
2358 The update process will emit an error on an attempt to perform a build
2359 or install from a FreeBSD version below the earliest supported version.
2360 When updating from an older version the update should be performed one
2361 major release at a time, including running `make delete-old` at each
2364 When upgrading a live system, having a root shell around before
2365 installing anything can help undo problems. Not having a root shell
2366 around can lead to problems if pam has changed too much from your
2367 starting point to allow continued authentication after the upgrade.
2369 This file should be read as a log of events. When a later event changes
2370 information of a prior event, the prior event should not be deleted.
2371 Instead, a pointer to the entry with the new information should be
2372 placed in the old entry. Readers of this file should also sanity check
2373 older entries before relying on them blindly. Authors of new entries
2374 should write them with this in mind.
2378 When upgrading the boot ZFS pool to a new version, always follow
2381 1.) recompile and reinstall the ZFS boot loader and boot block
2382 (this is part of "make buildworld" and "make installworld")
2384 2.) update the ZFS boot block on your boot drive
2386 The following example updates the ZFS boot block on the
2387 freebsd-boot partition of a GPT partitioned drive ada0:
2388 "gpart bootcode -p /boot/gptzfsboot -i $N ada0"
2389 The value $N will typically be 1 (if booting from BIOS) or 2 (if
2392 Non-boot pools do not need these updates.
2396 If you are updating from a prior version of FreeBSD (even one just
2397 a few days old), you should follow this procedure. It is the most
2398 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2400 make kernel-toolchain
2401 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2402 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2404 To test a kernel once
2405 ---------------------
2406 If you just want to boot a kernel once (because you are not sure
2407 if it works, or if you want to boot a known bad kernel to provide
2408 debugging information) run
2409 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2410 nextboot -k testkernel
2412 To rebuild everything and install it on the current system.
2413 -----------------------------------------------------------
2414 # Note: sometimes if you are running current you gotta do more than
2415 # is listed here if you are upgrading from a really old current.
2417 <make sure you have good level 0 dumps>
2419 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2420 make installkernel KERNCONF=YOUR_KERNEL_HERE
2422 <reboot in single user> [3]
2429 To cross-install current onto a separate partition
2430 --------------------------------------------------
2431 # In this approach we use a separate partition to hold
2432 # current's root, 'usr', and 'var' directories. A partition
2433 # holding "/", "/usr" and "/var" should be about 2GB in
2436 <make sure you have good level 0 dumps>
2439 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2440 <maybe newfs current's root partition>
2441 <mount current's root partition on directory ${CURRENT_ROOT}>
2442 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
2443 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2444 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2445 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2446 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2447 <reboot into current>
2448 <do a "native" rebuild/install as described in the previous section>
2449 <maybe install compatibility libraries from ports/misc/compat*>
2453 To upgrade in-place from stable to current
2454 ----------------------------------------------
2455 <make sure you have good level 0 dumps>
2457 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8]
2458 make installkernel KERNCONF=YOUR_KERNEL_HERE
2460 <reboot in single user> [3]
2467 Make sure that you've read the UPDATING file to understand the
2468 tweaks to various things you need. At this point in the life
2469 cycle of current, things change often and you are on your own
2470 to cope. The defaults can also change, so please read ALL of
2471 the UPDATING entries.
2473 Also, if you are tracking -current, you must be subscribed to
2474 freebsd-current@freebsd.org. Make sure that before you update
2475 your sources that you have read and understood all the recent
2476 messages there. If in doubt, please track -stable which has
2477 much fewer pitfalls.
2479 [1] If you have third party modules, such as vmware, you should disable
2480 them at this point so they don't crash your system on
2481 reboot. Alternatively, you should rebuild all the modules you have in
2482 your system and install them as well. If you are running -current, you
2483 should seriously consider placing all sources to all the modules for
2484 your system (or symlinks to them) in /usr/local/sys/modules so this
2485 happens automatically. If all your modules come from ports, then adding
2486 the port origin directories to PORTS_MODULES instead is also automatic
2488 PORTS_MODULES+=x11/nvidia-driver
2490 [3] From the bootblocks, boot -s, and then do
2494 sh /etc/rc.d/zfs start # mount zfs filesystem, if needed
2495 cd src # full path to source
2496 adjkerntz -i # if CMOS is wall time
2497 Also, when doing a major release upgrade, it is required that you boot
2498 into single user mode to do the installworld.
2500 [4] Note: This step is non-optional. Failure to do this step
2501 can result in a significant reduction in the functionality of the
2502 system. Attempting to do it by hand is not recommended and those
2503 that pursue this avenue should read this file carefully, as well
2504 as the archives of freebsd-current and freebsd-hackers mailing lists
2505 for potential gotchas. The -U option is also useful to consider.
2506 See mergemaster(8) for more information.
2508 [5] Usually this step is a no-op. However, from time to time
2509 you may need to do this if you get unknown user in the following
2510 step. It never hurts to do it all the time. You may need to
2511 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2512 install) after the buildworld before this step if you last updated
2513 from current before 20130425 or from -stable before 20130430.
2515 [6] This only deletes old files and directories. Old libraries
2516 can be deleted by "make delete-old-libs", but you have to make
2517 sure that no program is using those libraries anymore.
2519 [8] The new kernel must be able to run existing binaries used by an
2520 installworld. When upgrading across major versions, the new kernel's
2521 configuration must include the correct COMPAT_FREEBSD<n> option for
2522 existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x binaries). Failure
2523 to do so may leave you with a system that is hard to boot to recover. A
2524 GENERIC kernel will include suitable compatibility options to run
2525 binaries from older branches. Note that the ability to run binaries
2526 from unsupported branches is not guaranteed.
2528 Make sure that you merge any new devices from GENERIC since the
2529 last time you updated your kernel config file. Options also
2530 change over time, so you may need to adjust your custom kernels
2533 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2534 "?=" instead of the "=" assignment operator, so that buildworld can
2535 override the CPUTYPE if it needs to.
2537 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2538 not on the command line, or in /etc/make.conf. buildworld will
2539 warn if it is improperly defined.
2542 This file contains a list, in reverse chronological order, of major
2543 breakages in tracking -current. It is not guaranteed to be a complete
2544 list of such breakages, and only contains entries since September 23, 2011.
2545 If you need to see UPDATING entries from before that date, you will need
2546 to fetch an UPDATING file from an older FreeBSD release.
2548 Copyright information:
2550 Copyright 1998-2009 M. Warner Losh <imp@FreeBSD.org>
2552 Redistribution, publication, translation and use, with or without
2553 modification, in full or in part, in any form or format of this
2554 document are permitted without further permission from the author.
2556 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2557 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2558 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2559 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2560 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2561 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2562 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2563 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2564 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2565 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2566 POSSIBILITY OF SUCH DAMAGE.
2568 Contact Warner Losh if you have any questions about your use of