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 Improvements to libtacplus(8) mean that tacplus.conf(5) now
17 follows POSIX shell syntax rules. This may cause TACACS+
18 authentication to fail if the shared secret contains a single
19 quote, double quote, or backslash character which isn't
20 already properly quoted or escaped.
23 To enable pf rdr rules for connections initiated from the host, pf
24 filter rules can be optionally enabled for packets delivered
25 locally. This can change the behavior of rules which match packets
26 delivered to lo0. To enable this feature:
28 sysctl net.pf.filter_local=1
31 When enabled, its best to ensure that packets delivered locally are not
32 filtered, e.g. by adding a 'skip on lo' rule.
35 llvm-objump is now always installed as objdump. Previously there was
36 no /usr/bin/objdump unless the WITH_LLVM_BINUTILS knob was used.
38 Some LLVM objdump options have a different output format compared to
39 GNU objdump; readelf is available for inspecting ELF files, and GNU
40 objdump is available from the devel/binutils port or package.
43 Bump __FreeBSD_verion after various changes to LinuxKPI pci and 802.11
44 in order to help out-of-tree consumers to deal accordingly.
47 LinuxKPI pm.h changes require an update to the latest drm-kmod version
48 before re-compiling to avoid errors.
51 Bump __FreeBSD_verion to 1301501 after merging LinuxKPI and
52 net80211 changes in order to help out-of-tree consumers to deal
56 For 64-bit architectures the base system is now built with Position
57 Independent Executable (PIE) support enabled by default. It may be
58 disabled using the WITHOUT_PIE knob. A clean build is required.
61 The macros provided for the manipulation of CPU sets (e.g. CPU_AND)
62 have been modified to take 2 source arguments instead of only 1.
63 Externally maintained sources that use these macros will have to
64 be adapted. The FreeBSD version has been bumped to 1300524 to
68 Commit 18f5b477ee66 adds two arguments to VOP_ALLOCATE().
69 Normally changes to VOP calls are not MFC'd, but a
70 discussion on freebsd-current@ seemed to agree that
71 it was acceptable in this case, to fix the NFSv4.2 server.
72 Any out of source tree file system with a custom
73 VOP_ALLOCATE() call will need to be modified.
74 Bump __FreeBSD_version to 1300523 since the NFS modules need
75 to be rebuilt from sources.
78 Commit 6e8e261f0d4e changed the internal KAPI between the NFS
79 modules. As such, all the modules must be rebuilt from sources.
80 __FreeBSD_version has been bumped to 1300522.
83 Bump __FreeBSD_version to 1300521 after merging LinuxKPI and
84 net80211 changes in order to support building various wireless
85 drivers. This is to help other external consumers of LinuxKPI
86 and net80211 to deal accordingly.
89 Commit a599f9f7620b deleted the variable called nfs_maxcopyrange
90 from nfscommon.ko, since it no longer needs to be global. As such,
91 the other nfs modules must be rebuilt from up to date sources.
92 Bump __FreeBSD_version to 1300516 for this.
95 As of commit 622809b0868f OpenSSL no longer enables kernel TLS
96 by default. Users can enable kernel TLS via the "KTLS" SSL
97 option. This can be enabled globally by using a custom
98 OpenSSL config file via OPENSSL_CONF or via an
99 application-specific configuration option for applications
100 which permit setting SSL options via SSL_CONF_cmd(3).
103 Commits 9fb6e613373c and 9ec7dbf46b0a both changed the internal
104 KAPI between the NFS modules. Bump __FreeBSD_version to 1300514.
105 All NFS modules must be rebuilt from sources.
108 Commit b69019c14cd8 removes pf's DIOCGETSTATESNV ioctl.
109 As of be70c7a50d32 it is no longer used by userspace, but it does mean
110 users may not be able to enumerate pf states if they update the kernel
111 past c021ff986e2b without first updating userspace past be70c7a50d32.
114 Bump __FreeBSD_version to 1300512 after merging LinuxKPI, OFED,
115 net80211, and driver changes in order to support building
116 Intel wireless iwlwifi drivers. This is especially needed for
117 drm-kmod which needs updates after this.
120 The 20210707 awk update brought in a change in behavior. This has
121 been corrected as of d4d252c49976. Between these dates, if you
122 installed a new awk binary, you may not be able to build a new
123 kernel because the change in behavior affected the genoffset
124 script used to build the kernel. If you did update, the fix is
125 to update your sources past the above hash and do
128 % sudo -E make install
129 to enable building kernels again.
132 Commit 8a04edfdcbd2 changes the default minor version
133 used for NFSv4 mounts to the highest minor version supported
134 by the NFSv4 server. This default can be overridden by using
135 the "minorversion" mount option.
136 The consensus of a discussion on freebsd-current@ indicated
137 that this would be acceptable to do and would not be considered
141 awk has been updated to the latest one-true-awk version 20210215.
142 This contains a number of minor bug fixes.
145 Commit ca179c4d74f2/632e3f2f3a66 changed the package in which
146 the OpenSSL libraries and utilities are packaged.
147 It is recommended for pkgbase user to do:
148 pkg install -f FreeBSD-openssl
149 before pkg upgrade otherwise some dependencies might not be met
150 and pkg will stop working as libssl will not be present anymore
154 Commit 841006678745 changed the internal KAPI between the krpc
155 and nfsd modules. As such, they must both be rebuilt from
157 __FreeBSD_version is bumped to 1300510.
160 Commit 272f39942254 changed the internal KAPI between the
161 nscl.ko and nfscommon.ko modules, so they both need to be
162 rebuilt from sources.
165 Commit 5a45802b3c8c changed the internal KAPI between
166 the krpc and NFS. As such, the krpc, nfscommon and
167 nfscl modules must all be rebuilt from sources.
168 Without this patch, NFSv4.1/4.2 mounts should not
169 be done with the nfscbd(8) daemon running, to avoid
170 needing a working back channel for server->client RPCs.
173 Various LinuxKPI functionality was added which conflicts with DRM.
174 Please update your drm-kmod port to after the __FreeBSD_verison 1300139
178 The stable/13 branch has been created from main.
181 PC Card attachments for all devices have been removed. In the case of
182 wi and cmx, the entire drivers were removed because they were only
183 PC Card devices. FreeBSD_version 1300134 should be used for this
184 since it was bumped so recently.
187 Transport-independent parts of HID support have been split off the USB
188 code in to separate subsystem. Kernel configs which include one of
189 ums, ukbd, uhid, atp, wsp, wmt, uaudio, ugold or ucycom drivers should
190 be updated with adding of "device hid" line.
193 ncurses installation has been modified to only keep the widechar
194 enabled version. Incremental build is broken for that change, so it
195 requires a clean build.
198 The FreeBSD project has migrated from Subversion to Git. Temporary
199 instructions can be found at
200 https://github.com/bsdimp/freebsd-git-docs/blob/main/src-cvt.md
201 and other documents in that repo.
204 The services database has been updated to cover more of the basic
205 services expected in a modern system. The database is big enough
206 that it will cause issues in mergemaster in Releases previous to
207 12.2 and 11.3, or in very old current systems from before r358154.
210 Obsolete in-tree GDB 6.1.1 has been removed. GDB (including kgdb)
211 may be installed from ports or packages.
214 ping6 has been merged into ping. It can now be called as "ping -6".
215 See ping(8) for details.
218 Default value of net.add_addr_allfibs has been changed to 0.
219 If you have multi-fib configuration and rely on existence of all
220 interface routes in every fib, you need to set the above sysctl to 1.
222 The internal pre-processor in the calendar(1) program has been
223 extended to support more C pre-processor commands (e.g. #ifdef, #else,
224 and #undef) and to detect unbalanced conditional statements.
225 Error messages have been extended to include the filename and line
226 number if processing stops to help fixing malformed data files.
229 All the data files for the calendar(1) program, except calendar.freebsd,
230 have been moved to the deskutils/calendar-data port, much like the
231 jewish calendar entries were moved to deskutils/hebcal years ago. After
232 make delete-old-files, you need to install it to retain full
233 functionality. calendar(1) will issue a reminder for files it can't
237 LINT files are no longer generated. We now include the relevant NOTES
238 files. Note: This may cause conflicts with updating in some cases.
239 find sys -name LINT\* -delete
240 is suggested across this commit to remove the generated LINT files.
242 If you have tried to update with generated files there, the svn
243 command you want to un-auger the tree is
246 and then do the above find from the top level. Substitute 'amd64'
247 above with where the error message indicates a conflict.
250 OpenZFS support has been integrated. Do not upgrade root pools until
251 the loader is updated to support zstd. Furthermore, we caution against
252 'zpool upgrade' for the next few weeks. The change should be transparent
253 unless you want to use new features.
255 Not all "NO_CLEAN" build scenarios work across these changes. Many
256 scenarios have been tested and fixed, but rebuilding kernels without
257 rebuilding world may fail.
259 The ZFS cache file has moved from /boot to /etc to match the OpenZFS
260 upstream default. A fallback to /boot has been added for mountroot.
262 Pool auto import behavior at boot has been moved from the kernel module
263 to an explicit "zpool import -a" in one of the rc scripts enabled by
264 zfs_enable=YES. This means your non-root zpools won't auto import until
265 you upgrade your /etc/rc.d files.
268 The resume code now notifies devd with the 'kernel' system
269 rather than the old 'kern' subsystem to be consistent with
270 other use. The old notification will be created as well, but
271 will be removed prior to FreeBSD 14.0.
274 r362275 changed the internal API between the kernel RPC and the
275 NFS modules. As such, all the modules must be recompiled from
279 r364330 modified the internal API used between the NFS modules.
280 As such, all the NFS modules must be re-compiled from sources.
283 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
284 been upgraded to 11.0.0. Please see the 20141231 entry below for
285 information about prerequisites and upgrading, if you are not already
286 using clang 3.5.0 or higher.
289 r364092 modified the internal ABI used between the kernel NFS
290 modules. As such, all of these modules need to be rebuilt
291 from sources, so a version bump was done.
294 Makefile.inc has been updated to work around the issue documented in
295 20200729. It was a case where the optimization of using symbolic links
296 to point to binaries created a situation where we'd run new binaries
297 with old libraries starting midway through the installworld process.
300 r363679 has redefined some undefined behavior in regcomp(3); notably,
301 extraneous escapes of most ordinary characters will no longer be
302 accepted. An exp-run has identified all of the problems with this in
303 ports, but other non-ports software may need extra escapes removed to
304 continue to function.
306 Because of this change, installworld may encounter the following error
307 from rtld: Undefined symbol "regcomp@FBSD_1.6" -- It is imperative that
308 you do not halt installworld. Instead, let it run to completion (whether
309 successful or not) and run installworld once more.
312 A new implementation of bc and dc has been imported in r362681. This
313 implementation corrects non-conformant behavior of the previous bc
314 and adds GNU bc compatible options. It offers a number of extensions,
315 is much faster on large values, and has support for message catalogs
316 (a number of languages are already supported, contributions of further
317 languages welcome). The option WITHOUT_GH_BC can be used to build the
318 world with the previous versions of bc and dc.
321 r362639 changed the internal API used between the NFS kernel modules.
322 As such, they all need to be rebuilt from sources.
325 r362158 changed the arguments for VFS_CHECKEXP(). As such, any
326 out of tree file systems need to be modified and rebuilt.
327 Also, any file systems that are modules must be rebuilt.
330 read(2) of a directory fd is now rejected by default. root may
331 re-enable it for system root only on non-ZFS filesystems with the
332 security.bsd.allow_read_dir sysctl(8) MIB if
333 security.bsd.suser_enabled=1.
335 It may be advised to setup aliases for grep to default to `-d skip` if
336 commonly non-recursively grepping a list that includes directories and
337 the potential for the resulting stderr output is not tolerable. Example
338 aliases are now installed, commented out, in /root/.cshrc and
342 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
343 been upgraded to 10.0.1. Please see the 20141231 entry below for
344 information about prerequisites and upgrading, if you are not already
345 using clang 3.5.0 or higher.
348 Support for obsolete compilers has been removed from the build system.
349 Clang 6 and GCC 6.4 are the minimum supported versions.
352 closefrom(2) has been moved under COMPAT12, and replaced in libc with a
353 stub that calls close_range(2). If using a custom kernel configuration,
354 you may want to ensure that the COMPAT_FREEBSD12 option is included, as
355 a slightly older -CURRENT userland and older FreeBSD userlands may not
356 be functional without closefrom(2).
359 Upstream DTS from Linux 5.6 was merged and they now have the SID
360 and THS (Secure ID controller and THermal Sensor) node present.
361 The DTB overlays have now been removed from the tree for the H3/H5 and
362 A64 SoCs and the aw_sid and aw_thermal driver have been updated to
363 deal with upstream DTS. If you are using those overlays you need to
364 remove them from loader.conf and update the DTBs on the FAT partition.
367 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
368 been upgraded to 10.0.0. Please see the 20141231 entry below for
369 information about prerequisites and upgrading, if you are not already
370 using clang 3.5.0 or higher.
373 The amd(8) automount daemon has been removed from the source tree.
374 As of FreeBSD 10.1 autofs(5) is the preferred tool for automounting.
375 amd is still available in the sysutils/am-utils port.
378 Removed brooktree driver (bktr.4) from the tree.
381 The WITH_GPL_DTC option has been removed. The BSD-licenced device tree
382 compiler in usr.bin/dtc is used on all architectures which use dtc, and
383 the GPL dtc is available (if needed) from the sysutils/dtc port.
386 The WITHOUT_LLVM_LIBUNWIND option has been removed. LLVM's libunwind
387 is used by all supported CPU architectures.
390 GCC 4.2.1 has been removed from the tree. The WITH_GCC,
391 WITH_GCC_BOOTSTRAP, and WITH_GNUCXX options are no longer available.
392 Users who wish to build FreeBSD with GCC must use the external toolchain
396 ncurses has been updated to a newer version (6.2-20200215). Given the ABI
397 has changed, users will have to rebuild all the ports that are linked to
401 The size of struct vnet and the magic cookie have changed.
402 Users need to recompile libkvm and all modules using VIMAGE
403 together with their new kernel.
406 Defining the long deprecated NO_CTF, NO_DEBUG_FILES, NO_INSTALLLIB,
407 NO_MAN, NO_PROFILE, and NO_WARNS variables is now an error. Update
408 your Makefiles and scripts to define MK_<var>=no instead as required.
410 One exception to this is that program or library Makefiles should
411 define MAN to empty rather than setting MK_MAN=no.
414 Clang/LLVM is now the default compiler and LLD the default
418 make universe no longer uses GCC 4.2.1 on any architectures.
419 Architectures not supported by in-tree Clang/LLVM require an
420 external toolchain package.
423 GCC 4.2.1 is now not built by default, as part of the GCC 4.2.1
424 retirement plan. Specifically, the GCC, GCC_BOOTSTRAP, and GNUCXX
425 options default to off for all supported CPU architectures. As a
426 short-term transition aid they may be enabled via WITH_* options.
427 GCC 4.2.1 is expected to be removed from the tree on 2020-03-31.
430 Support for armv5 has been disconnected and is being removed. The
431 machine combination MACHINE=arm MACHINE_ARCH=arm is no longer valid.
432 You must now use a MACHINE_ARCH of armv6 or armv7. The default
433 MACHINE_ARCH for MACHINE=arm is now armv7.
436 Clang/LLVM is now the default compiler for all powerpc architectures.
437 LLD is now the default linker for powerpc64. The change for powerpc64
438 also includes a change to the ELFv2 ABI, incompatible with the existing
442 Kernel-loadable random(4) modules are no longer unloadable.
445 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
446 been upgraded to 9.0.1. Please see the 20141231 entry below for
447 information about prerequisites and upgrading, if you are not already
448 using clang 3.5.0 or higher.
451 r355677 has modified the internal interface used between the
452 NFS modules in the kernel. As such, they must all be upgraded
453 simultaneously. I will do a version bump for this.
456 The root certificates of the Mozilla CA Certificate Store have been
457 imported into the base system and can be managed with the certctl(8)
458 utility. If you have installed the security/ca_root_nss port or package
459 with the ETCSYMLINK option (the default), be advised that there may be
460 differences between those included in the port and those included in
461 base due to differences in nss branch used as well as general update
462 frequency. Note also that certctl(8) cannot manage certs in the
463 format used by the security/ca_root_nss port.
466 The amd(8) automount daemon has been disabled by default, and will be
467 removed in the future. As of FreeBSD 10.1 the autofs(5) is available
471 The nctgpio and wbwd drivers have been moved to the superio bus.
472 If you have one of these drivers in a kernel configuration, then
473 you should add device superio to it. If you use one of these drivers
474 as a module and you compile a custom set of modules, then you should
475 add superio to the set.
478 KPIs for network drivers to access interface addresses have changed.
479 Users need to recompile NIC driver modules together with kernel.
482 The net.link.tap.user_open sysctl no longer prevents user opening of
483 already created /dev/tapNN devices. Access is still controlled by
484 node permissions, just like tun devices. The net.link.tap.user_open
485 sysctl is now used only to allow users to perform devfs cloning of
486 tap devices, and the subsequent open may not succeed if the user is not
487 in the appropriate group. This sysctl may be deprecated/removed
488 completely in the future.
491 mips, powerpc, and sparc64 are no longer built as part of
492 universe / tinderbox unless MAKE_OBSOLETE_GCC is defined. If
493 not defined, mips, powerpc, and sparc64 builds will look for
494 the xtoolchain binaries and if installed use them for universe
495 builds. As llvm 9.0 becomes vetted for these architectures, they
496 will be removed from the list.
499 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
500 been upgraded to 9.0.0. Please see the 20141231 entry below for
501 information about prerequisites and upgrading, if you are not already
502 using clang 3.5.0 or higher.
505 The hpt27xx, hptmv, hptnr, and hptrr drivers have been removed from
506 GENERIC. They are available as modules and can be loaded by adding
507 to /boot/loader.conf hpt27xx_load="YES", hptmv_load="YES",
508 hptnr_load="YES", or hptrr_load="YES", respectively.
511 ntpd no longer by default locks its pages in memory, allowing them
512 to be paged out by the kernel. Use rlimit memlock to restore
513 historic BSD behaviour. For example, add "rlimit memlock 32"
514 to ntp.conf to lock up to 32 MB of ntpd address space in memory.
517 Several of ping6's options have been renamed for better consistency
518 with ping. If you use any of -ARWXaghmrtwx, you must update your
519 scripts. See ping6(8) for details.
522 The vfs.fusefs.sync_unmount and vfs.fusefs.init_backgrounded sysctls
523 and the "-o sync_unmount" and "-o init_backgrounded" mount options have
524 been removed from mount_fusefs(8). You can safely remove them from
525 your scripts, because they had no effect.
527 The vfs.fusefs.fix_broken_io, vfs.fusefs.sync_resize,
528 vfs.fusefs.refresh_size, vfs.fusefs.mmap_enable,
529 vfs.fusefs.reclaim_revoked, and vfs.fusefs.data_cache_invalidate
530 sysctls have been removed. If you felt the need to set any of them to
531 a non-default value, please tell asomers@FreeBSD.org why.
534 Default permissions on the /var/account/acct file (and copies of it
535 rotated by periodic daily scripts) are changed from 0644 to 0640
536 because the file contains sensitive information that should not be
537 world-readable. If the /var/account directory must be created by
538 rc.d/accounting, the mode used is now 0750. Admins who use the
539 accounting feature are encouraged to change the mode of an existing
540 /var/account directory to 0750 or 0700.
543 Entropy collection and the /dev/random device are no longer optional
544 components. The "device random" option has been removed.
545 Implementations of distilling algorithms can still be made loadable
546 with "options RANDOM_LOADABLE" (e.g., random_fortuna.ko).
549 Clang, llvm, lld, lldb, compiler-rt, libc++, libunwind and openmp have
550 been upgraded to 8.0.1. Please see the 20141231 entry below for
551 information about prerequisites and upgrading, if you are not already
552 using clang 3.5.0 or higher.
555 A fix was applied to i386 kernel modules to avoid panics with
556 dpcpu or vnet. Users need to recompile i386 kernel modules
557 having pcpu or vnet sections or they will refuse to load.
560 User-wired pages now have their own counter,
561 vm.stats.vm.v_user_wire_count. The vm.max_wired sysctl was renamed
562 to vm.max_user_wired and changed from an unsigned int to an unsigned
563 long. bhyve VMs wired with the -S are now subject to the user
564 wiring limit; the vm.max_user_wired sysctl may need to be tuned to
565 avoid running into the limit.
568 The IPSEC option has been removed from GENERIC. Users requiring
569 ipsec(4) must now load the ipsec(4) kernel module.
572 The tap(4) driver has been folded into tun(4), and the module has been
573 renamed to tuntap. You should update any kld_list="if_tap" or
574 kld_list="if_tun" entries in /etc/rc.conf, if_tap_load="YES" or
575 if_tun_load="YES" entries in /boot/loader.conf to load the if_tuntap
576 module instead, and "device tap" or "device tun" entries in kernel
577 config files to select the tuntap device instead.
580 The following knobs have been added related to tradeoffs between
581 safe use of the random device and availability in the absence of
584 kern.random.initial_seeding.bypass_before_seeding: tunable; set
585 non-zero to bypass the random device prior to seeding, or zero to
586 block random requests until the random device is initially seeded.
587 For now, set to 1 (unsafe) by default to restore pre-r346250 boot
588 availability properties.
590 kern.random.initial_seeding.read_random_bypassed_before_seeding:
591 read-only diagnostic sysctl that is set when bypass is enabled and
592 read_random(9) is bypassed, to enable programmatic handling of this
593 initial condition, if desired.
595 kern.random.initial_seeding.arc4random_bypassed_before_seeding:
596 Similar to the above, but for arc4random(9) initial seeding.
598 kern.random.initial_seeding.disable_bypass_warnings: tunable; set
599 non-zero to disable warnings in dmesg when the same conditions are
600 met as for the diagnostic sysctls above. Defaults to zero, i.e.,
601 produce warnings in dmesg when the conditions are met.
604 The loadable random module KPI has changed; the random_infra_init()
605 routine now requires a 3rd function pointer for a bool (*)(void)
606 method that returns true if the random device is seeded (and
607 therefore unblocked).
610 r345895 reverts r320698. This implies that an nfsuserd(8) daemon
611 built from head sources between r320757 (July 6, 2017) and
612 r338192 (Aug. 22, 2018) will not work unless the "-use-udpsock"
613 is added to the command line.
614 nfsuserd daemons built from head sources that are post-r338192 are
615 not affected and should continue to work.
618 The fuse(4) module has been renamed to fusefs(4) for consistency with
619 other filesystems. You should update any kld_load="fuse" entries in
620 /etc/rc.conf, fuse_load="YES" entries in /boot/loader.conf, and
621 "options FUSE" entries in kernel config files.
624 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
625 8.0.0. Please see the 20141231 entry below for information about
626 prerequisites and upgrading, if you are not already using clang 3.5.0
630 geom_uzip(4) depends on the new module xz. If geom_uzip is statically
631 compiled into your custom kernel, add 'device xz' statement to the
635 drm and drm2 have been removed from the tree. Please see
636 https://wiki.freebsd.org/Graphics for the latest information on
637 migrating to the drm ports.
640 Iflib is no longer unconditionally compiled into the kernel. Drivers
641 using iflib and statically compiled into the kernel, now require
642 the 'device iflib' config option. For the same drivers loaded as
643 modules on kernels not having 'device iflib', the iflib.ko module
644 is loaded automatically.
647 The IEEE80211_AMPDU_AGE and AH_SUPPORT_AR5416 kernel configuration
648 options no longer exist since r343219 and r343427 respectively;
649 nothing uses them, so they should be just removed from custom
653 r342635 changes the way efibootmgr(8) works by requiring users to add
654 the -b (bootnum) parameter for commands where the bootnum was previously
655 specified with each option. For example 'efibootmgr -B 0001' is now
656 'efibootmgr -B -b 0001'.
659 r342286 modifies the NFSv4 server so that it obeys vfs.nfsd.nfs_privport
660 in the same as it is applied to NFSv2 and 3. This implies that NFSv4
661 servers that have vfs.nfsd.nfs_privport set will only allow mounts
662 from clients using a reserved port#. Since both the FreeBSD and Linux
663 NFSv4 clients use reserved port#s by default, this should not affect
667 The XLP config has been removed. We can't support 64-bit atomics in this
668 kernel because it is running in 32-bit mode. XLP users must transition
669 to running a 64-bit kernel (XLP64 or XLPN32).
671 The mips GXEMUL support has been removed from FreeBSD. MALTA* + qemu is
672 the preferred emulator today and we don't need two different ones.
674 The old sibyte / swarm / Broadcom BCM1250 support has been
675 removed from the mips port.
678 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
679 7.0.1. Please see the 20141231 entry below for information about
680 prerequisites and upgrading, if you are not already using clang 3.5.0
684 Remove the timed and netdate programs from the base tree. Setting
685 the time with these daemons has been obsolete for over a decade.
688 On amd64, arm64 and armv7 (architectures that install LLVM's ld.lld
689 linker as /usr/bin/ld) GNU ld is no longer installed as ld.bfd, as
690 it produces broken binaries when ifuncs are in use. Users needing
691 GNU ld should install the binutils port or package.
694 The BSD crtbegin and crtend code has been enabled by default. It has
695 had extensive testing on amd64, arm64, and i386. It can be disabled
696 by building a world with -DWITHOUT_BSD_CRTBEGIN.
699 The set of CTM commands (ctm, ctm_smail, ctm_rmail, ctm_dequeue)
700 has been converted to a port (misc/ctm) and will be removed from
701 FreeBSD-13. It is available as a package (ctm) for all supported
705 The default newsyslog.conf(5) file has been changed to only include
706 files in /etc/newsyslog.conf.d/ and /usr/local/etc/newsyslog.conf.d/ if
707 the filenames end in '.conf' and do not begin with a '.'.
709 You should check the configuration files in these two directories match
710 this naming convention. You can verify which configuration files are
711 being included using the command:
715 Ports for the DRM modules have been simplified. Now, amd64 users should
716 just install the drm-kmod port. All others should install
719 Graphics hardware that's newer than about 2010 usually works with
720 drm-kmod. For hardware older than 2013, however, some users will need
721 to use drm-legacy-kmod if drm-kmod doesn't work for them. Hardware older
722 than 2008 usually only works in drm-legacy-kmod. The graphics team can
723 only commit to hardware made since 2013 due to the complexity of the
724 market and difficulty to test all the older cards effectively. If you
725 have hardware supported by drm-kmod, you are strongly encouraged to use
726 that as you will get better support.
728 Other than KPI chasing, drm-legacy-kmod will not be updated. As outlined
729 elsewhere, the drm and drm2 modules will be eliminated from the src base
730 soon (with a limited exception for arm). Please update to the package
731 asap and report any issues to x11@freebsd.org.
733 Generally, anybody using the drm*-kmod packages should add
734 WITHOUT_DRM_MODULE=t and WITHOUT_DRM2_MODULE=t to avoid nasty
735 cross-threading surprises, especially with automatic driver
736 loading from X11 startup. These will become the defaults in 13-current
740 The ixlv(4) driver has been renamed to iavf(4). As a consequence,
741 custom kernel and module loading configuration files must be updated
742 accordingly. Moreover, interfaces previous presented as ixlvN to the
743 system are now exposed as iavfN and network configuration files must
744 be adjusted as necessary.
747 OpenSSL has been updated to version 1.1.1. This update included
748 additional various API changes throughout the base system. It is
749 important to rebuild third-party software after upgrading. The value
750 of __FreeBSD_version has been bumped accordingly.
753 The legacy DRM modules and drivers have now been added to the loader's
754 module blacklist, in favor of loading them with kld_list in rc.conf(5).
755 The module blacklist may be overridden with the loader.conf(5)
756 'module_blacklist' variable, but loading them via rc.conf(5) is strongly
760 The cam(4) based nda(4) driver will be used over nvd(4) by default on
761 powerpc64. You may set 'options NVME_USE_NVD=1' in your kernel conf or
762 loader tunable 'hw.nvme.use_nvd=1' if you wish to use the existing
763 driver. Make sure to edit /boot/etc/kboot.conf and fstab to use the
767 Reproducible build mode is now on by default, in preparation for
768 FreeBSD 12.0. This eliminates build metadata such as the user,
769 host, and time from the kernel (and uname), unless the working tree
770 corresponds to a modified checkout from a version control system.
771 The previous behavior can be obtained by setting the /etc/src.conf
772 knob WITHOUT_REPRODUCIBLE_BUILD.
775 The Yarrow CSPRNG has been removed from the kernel as it has not been
776 supported by its designers since at least 2003. Fortuna has been the
777 default since FreeBSD-11.
780 devctl freeze/thaw have gone into the tree, the rc scripts have been
781 updated to use them and devmatch has been changed. You should update
782 kernel, userland and rc scripts all at the same time.
785 The default interpreter has been switched from 4th to Lua.
786 LOADER_DEFAULT_INTERP, documented in build(7), will override the default
787 interpreter. If you have custom FORTH code you will need to set
788 LOADER_DEFAULT_INTERP=4th (valid values are 4th, lua or simp) in
789 src.conf for the build. This will create default hard links between
790 loader and loader_4th instead of loader and loader_lua, the new default.
791 If you are using UEFI it will create the proper hard link to loader.efi.
793 bhyve uses userboot.so. It remains 4th-only until some issues are solved
794 regarding coexisting with multiple versions of FreeBSD are resolved.
797 ls(1) now respects the COLORTERM environment variable used in other
798 systems and software to indicate that a colored terminal is both
799 supported and desired. If ls(1) is suddenly emitting colors, they may
800 be disabled again by either removing the unwanted COLORTERM from your
801 environment, or using `ls --color=never`. The ls(1) specific CLICOLOR
802 may not be observed in a future release.
805 The default pager for most commands has been changed to "less". To
806 restore the old behavior, set PAGER="more" and MANPAGER="more -s" in
810 The jedec_ts(4) driver has been removed. A superset of its functionality
811 is available in the jedec_dimm(4) driver, and the manpage for that
812 driver includes migration instructions. If you have "device jedec_ts"
813 in your kernel configuration file, it must be removed.
816 amd64/GENERIC now has EFI runtime services, EFIRT, enabled by default.
817 This should have no effect if the kernel is booted via BIOS/legacy boot.
818 EFIRT may be disabled via a loader tunable, efi.rt.disabled, if a system
819 has a buggy firmware that prevents a successful boot due to use of
823 Atmel AT91RM9200 and AT91SAM9, Cavium CNS 11xx and XScale
824 support has been removed from the tree. These ports were
825 obsolete and/or known to be broken for many years.
828 loader.efi has been augmented to participate more fully in the
829 UEFI boot manager protocol. loader.efi will now look at the
830 BootXXXX environment variable to determine if a specific kernel
831 or root partition was specified. XXXX is derived from BootCurrent.
832 efibootmgr(8) manages these standard UEFI variables.
835 zfsloader's functionality has now been folded into loader.
836 zfsloader is no longer necessary once you've updated your
837 boot blocks. For a transition period, we will install a
838 hardlink for zfsloader to loader to allow a smooth transition
839 until the boot blocks can be updated (hard link because old
840 zfs boot blocks don't understand symlinks).
843 ARM64 now have efifb support, if you want to have serial console
844 on your arm64 board when an screen is connected and the bootloader
845 setup a frame buffer for us to use, just add :
849 For Raspberry Pi 3 (RPI) users, this is needed even if you don't have
850 an screen connected as the firmware will setup a frame buffer are that
851 u-boot will expose as an EFI frame buffer.
854 New uid:gid added, ntpd:ntpd (123:123). Be sure to run mergemaster
855 or take steps to update /etc/passwd before doing installworld on
856 existing systems. Do not skip the "mergemaster -Fp" step before
857 installworld, as described in the update procedures near the bottom
858 of this document. Also, rc.d/ntpd now starts ntpd(8) as user ntpd
859 if the new mac_ntpd(4) policy is available, unless ntpd_flags or
860 the ntp config file contain options that change file/dir locations.
861 When such options (e.g., "statsdir" or "crypto") are used, ntpd can
862 still be run as non-root by setting ntpd_user=ntpd in rc.conf, after
863 taking steps to ensure that all required files/dirs are accessible
867 Big endian arm support has been removed.
870 The static environment setup in kernel configs is no longer mutually
871 exclusive with the loader(8) environment by default. In order to
872 restore the previous default behavior of disabling the loader(8)
873 environment if a static environment is present, you must specify
874 loader_env.disabled=1 in the static environment.
877 The ABI of syscalls used by management tools like sockstat and
878 netstat has been broken to allow 32-bit binaries to work on
879 64-bit kernels without modification. These programs will need
880 to match the kernel in order to function. External programs may
881 require minor modifications to accommodate a change of type in
882 structures from pointers to 64-bit virtual addresses.
885 On i386 and amd64 atomics are now inlined. Out of tree modules using
886 atomics will need to be rebuilt.
889 The '%I' format in the kern.corefile sysctl limits the number of
890 core files that a process can generate to the number stored in the
891 debug.ncores sysctl. The '%I' format is replaced by the single digit
892 index. Previously, if all indexes were taken the kernel would overwrite
893 only a core file with the highest index in a filename.
894 Currently the system will create a new core file if there is a free
895 index or if all slots are taken it will overwrite the oldest one.
898 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
899 6.0.1. Please see the 20141231 entry below for information about
900 prerequisites and upgrading, if you are not already using clang 3.5.0
904 r335753 introduced a new quoting method. However, etc/devd/devmatch.conf
905 needed to be changed to work with it. This change was made with r335763
906 and requires a mergemaster / etcupdate / etc to update the installed
910 r334930 changed the interface between the NFS modules, so they all
911 need to be rebuilt. r335018 did a __FreeBSD_version bump for this.
914 As of r334391 lld is the default amd64 system linker; it is installed
915 as /usr/bin/ld. Kernel build workarounds (see 20180510 entry) are no
919 The kernel / userland interface for devinfo changed, so you'll
920 need a new kernel and userland as a pair for it to work (rebuilding
921 lib/libdevinfo is all that's required). devinfo and devmatch will
922 not work, but everything else will when there's a mismatch.
925 The on-disk format for hwpmc callchain records has changed to include
926 threadid corresponding to a given record. This changes the field offsets
927 and thus requires that libpmcstat be rebuilt before using a kernel
931 The vxge(4) driver has been removed. This driver was introduced into
932 HEAD one week before the Exar left the Ethernet market and is not
933 known to be used. If you have device vxge in your kernel config file
937 The amd64 kernel now requires a ld that supports ifunc to produce a
938 working kernel, either lld or a newer binutils. lld is built by default
939 on amd64, and the 'buildkernel' target uses it automatically. However,
940 it is not the default linker, so building the kernel the traditional
941 way requires LD=ld.lld on the command line (or LD=/usr/local/bin/ld for
942 binutils port/package). lld will soon be default, and this requirement
945 NOTE: As of r334391 lld is the default system linker on amd64, and no
946 workaround is necessary.
949 The nxge(4) driver has been removed. This driver was for PCI-X 10g
950 cards made by s2io/Neterion. The company was acquired by Exar and
951 no longer sells or supports Ethernet products. If you have device
952 nxge in your kernel config file it must be removed.
955 The tz database (tzdb) has been updated to 2018e. This version more
956 correctly models time stamps in time zones with negative DST such as
957 Europe/Dublin (from 1971 on), Europe/Prague (1946/7), and
958 Africa/Windhoek (1994/2017). This does not affect the UT offsets, only
959 time zone abbreviations and the tm_isdst flag.
962 The ixgb(4) driver has been removed. This driver was for an early and
963 uncommon legacy PCI 10GbE for a single ASIC, Intel 82597EX. Intel
964 quickly shifted to the long lived ixgbe family. If you have device
965 ixgb in your kernel config file it must be removed.
968 The lmc(4) driver has been removed. This was a WAN interface
969 card that was already reportedly rare in 2003, and had an ambiguous
970 license. If you have device lmc in your kernel config file it must
974 Support for Arcnet networks has been removed. If you have device
975 arcnet or device cm in your kernel config file they must be
979 Support for FDDI networks has been removed. If you have device
980 fddi or device fpa in your kernel config file they must be
984 In addition to supporting RFC 3164 formatted messages, the
985 syslogd(8) service is now capable of parsing RFC 5424 formatted
986 log messages. The main benefit of using RFC 5424 is that clients
987 may now send log messages with timestamps containing year numbers,
988 microseconds and time zone offsets.
990 Similarly, the syslog(3) C library function has been altered to
991 send RFC 5424 formatted messages to the local system logging
992 daemon. On systems using syslogd(8), this change should have no
993 negative impact, as long as syslogd(8) and the C library are
994 updated at the same time. On systems using a different system
995 logging daemon, it may be necessary to make configuration
996 adjustments, depending on the software used.
998 When using syslog-ng, add the 'syslog-protocol' flag to local
999 input sources to enable parsing of RFC 5424 formatted messages:
1002 unix-dgram("/var/run/log" flags(syslog-protocol));
1005 When using rsyslog, disable the 'SysSock.UseSpecialParser' option
1006 of the 'imuxsock' module to let messages be processed by the
1007 regular RFC 3164/5424 parsing pipeline:
1009 module(load="imuxsock" SysSock.UseSpecialParser="off")
1011 Do note that these changes only affect communication between local
1012 applications and syslogd(8). The format that syslogd(8) uses to
1013 store messages on disk or forward messages to other systems
1014 remains unchanged. syslogd(8) still uses RFC 3164 for these
1015 purposes. Options to customize this behaviour will be added in the
1016 future. Utilities that process log files stored in /var/log are
1017 thus expected to continue to function as before.
1019 __FreeBSD_version has been incremented to 1200061 to denote this
1023 Support for token ring networks has been removed. If you
1024 have "device token" in your kernel config you should remove
1025 it. No device drivers supported token ring.
1028 makefs was modified to be able to tag ISO9660 El Torito boot catalog
1029 entries as EFI instead of overloading the i386 tag as done previously.
1030 The amd64 mkisoimages.sh script used to build amd64 ISO images for
1031 release was updated to use this. This may mean that makefs must be
1032 updated before "make cdrom" can be run in the release directory. This
1033 should be as simple as:
1035 $ cd $SRCDIR/usr.sbin/makefs
1036 $ make depend all install
1039 FreeBSD boot loader enhanced with Lua scripting. It's purely opt-in for
1040 now by building WITH_LOADER_LUA and WITHOUT_FORTH in /etc/src.conf.
1041 Co-existence for the transition period will come shortly. Booting is a
1042 complex environment and test coverage for Lua-enabled loaders has been
1043 thin, so it would be prudent to assume it might not work and make
1044 provisions for backup boot methods.
1047 devmatch functionality has been turned on in devd. It will automatically
1048 load drivers for unattached devices. This may cause unexpected drivers
1049 to be loaded. Please report any problems to current@ and
1053 Clang, llvm, lld, lldb, compiler-rt and libc++ have been upgraded to
1054 6.0.0. Please see the 20141231 entry below for information about
1055 prerequisites and upgrading, if you are not already using clang 3.5.0
1059 LLVM's lld linker is now used as the FreeBSD/amd64 bootstrap linker.
1060 This means it is used to link the kernel and userland libraries and
1061 executables, but is not yet installed as /usr/bin/ld by default.
1063 To revert to ld.bfd as the bootstrap linker, in /etc/src.conf set
1064 WITHOUT_LLD_BOOTSTRAP=yes
1067 On i386, pmtimer has been removed. Its functionality has been folded
1068 into apm. It was a no-op on ACPI in current for a while now (but was
1069 still needed on i386 in FreeBSD 11 and earlier). Users may need to
1070 remove it from kernel config files.
1073 The use of RSS hash from the network card aka flowid has been
1074 disabled by default for lagg(4) as it's currently incompatible with
1075 the lacp and loadbalance protocols.
1077 This can be re-enabled by setting the following in loader.conf:
1078 net.link.lagg.default_use_flowid="1"
1081 The SW_WATCHDOG option is no longer necessary to enable the
1082 hardclock-based software watchdog if no hardware watchdog is
1083 configured. As before, SW_WATCHDOG will cause the software
1084 watchdog to be enabled even if a hardware watchdog is configured.
1087 r326887 fixes the issue described in the 20171214 UPDATING entry.
1088 r326888 flips the switch back to building GELI support always.
1091 r362593 broke ZFS + GELI support for reasons unknown. However,
1092 it also broke ZFS support generally, so GELI has been turned off
1093 by default as the lesser evil in r326857. If you boot off ZFS and/or
1094 GELI, it might not be a good time to update.
1097 PowerPC users must update loader(8) by rebuilding world before
1098 installing a new kernel, as the protocol connecting them has
1099 changed. Without the update, loader metadata will not be passed
1100 successfully to the kernel and users will have to enter their
1101 root partition at the kernel mountroot prompt to continue booting.
1102 Newer versions of loader can boot old kernels without issue.
1105 The LOADER_FIREWIRE_SUPPORT build variable as been renamed to
1106 WITH/OUT_LOADER_FIREWIRE. LOADER_{NO_,}GELI_SUPPORT has been renamed
1107 to WITH/OUT_LOADER_GELI.
1110 The naive and non-compliant support of posix_fallocate(2) in ZFS
1111 has been removed as of r325320. The system call now returns EINVAL
1112 when used on a ZFS file. Although the new behavior complies with the
1113 standard, some consumers are not prepared to cope with it.
1114 One known victim is lld prior to r325420.
1117 Building in a FreeBSD src checkout will automatically create object
1118 directories now rather than store files in the current directory if
1119 'make obj' was not ran. Calling 'make obj' is no longer necessary.
1120 This feature can be disabled by setting WITHOUT_AUTO_OBJ=yes in
1121 /etc/src-env.conf (not /etc/src.conf), or passing the option in the
1125 The default MAKEOBJDIR has changed from /usr/obj/<srcdir> for native
1126 builds, and /usr/obj/<arch>/<srcdir> for cross-builds, to a unified
1127 /usr/obj/<srcdir>/<arch>. This behavior can be changed to the old
1128 format by setting WITHOUT_UNIFIED_OBJDIR=yes in /etc/src-env.conf,
1129 the environment, or with -DWITHOUT_UNIFIED_OBJDIR when building.
1130 The UNIFIED_OBJDIR option is a transitional feature that will be
1131 removed for 12.0 release; please migrate to the new format for any
1132 tools by looking up the OBJDIR used by 'make -V .OBJDIR' means rather
1133 than hardcoding paths.
1136 The native-xtools target no longer installs the files by default to the
1137 OBJDIR. Use the native-xtools-install target with a DESTDIR to install
1138 to ${DESTDIR}/${NXTP} where NXTP defaults to /nxb-bin.
1141 As part of the boot loader infrastructure cleanup, LOADER_*_SUPPORT
1142 options are changing from controlling the build if defined / undefined
1143 to controlling the build with explicit 'yes' or 'no' values. They will
1144 shift to WITH/WITHOUT options to match other options in the system.
1147 libstand has turned into a private library for sys/boot use only.
1148 It is no longer supported as a public interface outside of sys/boot.
1151 The arm port has split armv6 into armv6 and armv7. armv7 is now
1152 a valid TARGET_ARCH/MACHINE_ARCH setting. If you have an armv7 system
1153 and are running a kernel from before r324363, you will need to add
1154 MACHINE_ARCH=armv7 to 'make buildworld' to do a native build.
1157 When building multiple kernels using KERNCONF, non-existent KERNCONF
1158 files will produce an error and buildkernel will fail. Previously
1159 missing KERNCONF files silently failed giving no indication as to
1160 why, only to subsequently discover during installkernel that the
1161 desired kernel was never built in the first place.
1164 The default serial number format for CTL LUNs has changed. This will
1165 affect users who use /dev/diskid/* device nodes, or whose FibreChannel
1166 or iSCSI clients care about their LUNs' serial numbers. Users who
1167 require serial number stability should hardcode serial numbers in
1171 For 32-bit arm compiled for hard-float support, soft-floating point
1172 binaries now always get their shared libraries from
1173 LD_SOFT_LIBRARY_PATH (in the past, this was only used if
1174 /usr/libsoft also existed). Only users with a hard-float ld.so, but
1175 soft-float everything else should be affected.
1178 The geli password typed at boot is now hidden. To restore the previous
1179 behavior, see geli(8) for configuration options.
1182 Move PMTUD blackhole counters to TCPSTATS and remove them from bare
1183 sysctl values. Minor nit, but requires a rebuild of both world/kernel
1187 "make check" behavior (made in ^/head@r295380) has been changed to
1188 execute from a limited sandbox, as opposed to executing from
1192 - The "beforecheck" and "aftercheck" targets are now specified.
1193 - ${CHECKDIR} (added in commit noted above) has been removed.
1194 - Legacy behavior can be enabled by setting
1195 WITHOUT_MAKE_CHECK_USE_SANDBOX in src.conf(5) or the environment.
1197 If the limited sandbox mode is enabled, "make check" will execute
1198 "make distribution", then install, execute the tests, and clean up the
1199 sandbox if successful.
1201 The "make distribution" and "make install" targets are typically run as
1202 root to set appropriate permissions and ownership at installation time.
1203 The end-user should set "WITH_INSTALL_AS_USER" in src.conf(5) or the
1204 environment if executing "make check" with limited sandbox mode using
1205 an unprivileged user.
1208 Since the switch to GPT disk labels, fsck for UFS/FFS has been
1209 unable to automatically find alternate superblocks. As of r322297,
1210 the information needed to find alternate superblocks has been
1211 moved to the end of the area reserved for the boot block.
1212 Filesystems created with a newfs of this vintage or later
1213 will create the recovery information. If you have a filesystem
1214 created prior to this change and wish to have a recovery block
1215 created for your filesystem, you can do so by running fsck in
1216 foreground mode (i.e., do not use the -p or -y options). As it
1217 starts, fsck will ask ``SAVE DATA TO FIND ALTERNATE SUPERBLOCKS''
1218 to which you should answer yes.
1221 As of r321665, an NFSv4 server configuration that services
1222 Kerberos mounts or clients that do not support the uid/gid in
1223 owner/owner_group string capability, must explicitly enable
1224 the nfsuserd daemon by adding nfsuserd_enable="YES" to the
1225 machine's /etc/rc.conf file.
1228 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 5.0.0.
1229 Please see the 20141231 entry below for information about prerequisites
1230 and upgrading, if you are not already using clang 3.5.0 or higher.
1233 WITHOUT_RCMDS is now the default. Set WITH_RCMDS if you need the
1234 r-commands (rlogin, rsh, etc.) to be built with the base system.
1237 The FreeBSD/powerpc platform now uses a 64-bit type for time_t. This is
1238 a very major ABI incompatible change, so users of FreeBSD/powerpc must
1239 be careful when performing source upgrades. It is best to run
1240 'make installworld' from an alternate root system, either a live
1241 CD/memory stick, or a temporary root partition. Additionally, all ports
1242 must be recompiled. powerpc64 is largely unaffected, except in the case
1243 of 32-bit compatibility. All 32-bit binaries will be affected.
1246 Forward compatibility for the "ino64" project have been committed. This
1247 will allow most new binaries to run on older kernels in a limited
1248 fashion. This prevents many of the common foot-shooting actions in the
1249 upgrade as well as the limited ability to roll back the kernel across
1250 the ino64 upgrade. Complicated use cases may not work properly, though
1251 enough simpler ones work to allow recovery in most situations.
1254 Switch back to the BSDL dtc (Device Tree Compiler). Set WITH_GPL_DTC
1255 if you require the GPL compiler.
1258 The internal ABI used for communication between the NFS kernel modules
1259 was changed by r320085, so __FreeBSD_version was bumped to
1260 ensure all the NFS related modules are updated together.
1263 The ABI of struct event was changed by extending the data
1264 member to 64bit and adding ext fields. For upgrade, same
1265 precautions as for the entry 20170523 "ino64" must be
1269 The GNU roff toolchain has been removed from base. To render manpages
1270 which are not supported by mandoc(1), man(1) can fallback on GNU roff
1271 from ports (and recommends to install it).
1272 To render roff(7) documents, consider using GNU roff from ports or the
1273 heirloom doctools roff toolchain from ports via pkg install groff or
1274 via pkg install heirloom-doctools.
1277 The ath(4) and ath_hal(4) modules now build piecemeal to allow for
1278 smaller runtime footprint builds. This is useful for embedded systems
1279 which only require one chipset support.
1281 If you load it as a module, make sure this is in /boot/loader.conf:
1285 This will load the HAL, all chip/RF backends and if_ath_pci.
1286 If you have if_ath_pci in /boot/loader.conf, ensure it is after
1287 if_ath or it will not load any HAL chipset support.
1289 If you want to selectively load things (eg on ye cheape ARM/MIPS
1290 platforms where RAM is at a premium) you should:
1293 * load the chip modules in question
1294 * load ath_rate, ath_dfs
1296 * load if_ath_pci and/or if_ath_ahb depending upon your particular
1297 bus bind type - this is where probe/attach is done.
1299 For further comments/feedback, poke adrian@ .
1302 The "ino64" 64-bit inode project has been committed, which extends
1303 a number of types to 64 bits. Upgrading in place requires care and
1304 adherence to the documented upgrade procedure.
1306 If using a custom kernel configuration ensure that the
1307 COMPAT_FREEBSD11 option is included (as during the upgrade the
1308 system will be running the ino64 kernel with the existing world).
1310 For the safest in-place upgrade begin by removing previous build
1311 artifacts via "rm -rf /usr/obj/*". Then, carefully follow the full
1312 procedure documented below under the heading "To rebuild everything and
1313 install it on the current system." Specifically, a reboot is required
1314 after installing the new kernel before installing world. While an
1315 installworld normally works by accident from multiuser after rebooting
1316 the proper kernel, there are many cases where this will fail across this
1317 upgrade and installworld from single user is required.
1320 The NATM framework including the en(4), fatm(4), hatm(4), and
1321 patm(4) devices has been removed. Consumers should plan a
1322 migration before the end-of-life date for FreeBSD 11.
1325 GNU diff has been replaced by a BSD licensed diff. Some features of GNU
1326 diff has not been implemented, if those are needed a newer version of
1327 GNU diff is available via the diffutils package under the gdiff name.
1330 As of r316810 for ipfilter, keep frags is no longer assumed when
1331 keep state is specified in a rule. r316810 aligns ipfilter with
1332 documentation in man pages separating keep frags from keep state.
1333 This allows keep state to be specified without forcing keep frags
1334 and allows keep frags to be specified independently of keep state.
1335 To maintain previous behaviour, also specify keep frags with
1336 keep state (as documented in ipf.conf.5).
1339 arm64 builds now use the base system LLD 4.0.0 linker by default,
1340 instead of requiring that the aarch64-binutils port or package be
1341 installed. To continue using aarch64-binutils, set
1342 CROSS_BINUTILS_PREFIX=/usr/local/aarch64-freebsd/bin .
1345 The UDP optimization in entry 20160818 that added the sysctl
1346 net.inet.udp.require_l2_bcast has been reverted. L2 broadcast
1347 packets will no longer be treated as L3 broadcast packets.
1350 Binds and sends to the loopback addresses, IPv6 and IPv4, will now
1351 use any explicitly assigned loopback address available in the jail
1352 instead of using the first assigned address of the jail.
1355 The ctl.ko module no longer implements the iSCSI target frontend:
1356 cfiscsi.ko does instead.
1358 If building cfiscsi.ko as a kernel module, the module can be loaded
1359 via one of the following methods:
1360 - `cfiscsi_load="YES"` in loader.conf(5).
1361 - Add `cfiscsi` to `$kld_list` in rc.conf(5).
1362 - ctladm(8)/ctld(8), when compiled with iSCSI support
1363 (`WITH_ISCSI=yes` in src.conf(5))
1365 Please see cfiscsi(4) for more details.
1368 The mmcsd.ko module now additionally depends on geom_flashmap.ko.
1369 Also, mmc.ko and mmcsd.ko need to be a matching pair built from the
1370 same source (previously, the dependency of mmcsd.ko on mmc.ko was
1371 missing, but mmcsd.ko now will refuse to load if it is incompatible
1375 The syntax of ipfw(8) named states was changed to avoid ambiguity.
1376 If you have used named states in the firewall rules, you need to modify
1377 them after installworld and before rebooting. Now named states must
1378 be prefixed with colon.
1381 The old drm (sys/dev/drm/) drivers for i915 and radeon have been
1382 removed as the userland we provide cannot use them. The KMS version
1383 (sys/dev/drm2) supports the same hardware.
1386 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 4.0.0.
1387 Please see the 20141231 entry below for information about prerequisites
1388 and upgrading, if you are not already using clang 3.5.0 or higher.
1391 The code that provides support for ZFS .zfs/ directory functionality
1392 has been reimplemented. It's not possible now to create a snapshot
1393 by mkdir under .zfs/snapshot/. That should be the only user visible
1397 EISA bus support has been removed. The WITH_EISA option is no longer
1401 MCA bus support has been removed.
1404 The WITH_LLD_AS_LD / WITHOUT_LLD_AS_LD build knobs have been renamed
1405 WITH_LLD_IS_LD / WITHOUT_LLD_IS_LD, for consistency with CLANG_IS_CC.
1408 The EM_MULTIQUEUE kernel configuration option is deprecated now that
1409 the em(4) driver conforms to iflib specifications.
1412 The igb(4), em(4) and lem(4) ethernet drivers are now implemented via
1413 IFLIB. If you have a custom kernel configuration that excludes em(4)
1414 but you use igb(4), you need to re-add em(4) to your custom
1418 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.1.
1419 Please see the 20141231 entry below for information about prerequisites
1420 and upgrading, if you are not already using clang 3.5.0 or higher.
1423 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.9.0.
1424 Please see the 20141231 entry below for information about prerequisites
1425 and upgrading, if you are not already using clang 3.5.0 or higher.
1428 The layout of the pmap structure has changed for powerpc to put the pmap
1429 statistics at the front for all CPU variations. libkvm(3) and all tools
1430 that link against it need to be recompiled.
1433 isl(4) and cyapa(4) drivers now require a new driver,
1434 chromebook_platform(4), to work properly on Chromebook-class hardware.
1435 On other types of hardware the drivers may need to be configured using
1436 device hints. Please see the corresponding manual pages for details.
1439 The urtwn(4) driver was merged into rtwn(4) and now consists of
1440 rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific
1442 Also, firmware for RTL8188CE was renamed due to possible name
1443 conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B))
1446 GNU rcs has been removed from base. It is available as packages:
1447 - rcs: Latest GPLv3 GNU rcs version.
1448 - rcs57: Copy of the latest version of GNU rcs (GPLv2) before it was
1452 Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control
1453 modules now requires that the kernel configuration contain the
1454 TCP_HHOOK option. (This option is included in the GENERIC kernel.)
1457 The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired.
1458 ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy.
1461 Relocatable object files with the extension of .So have been renamed
1462 to use an extension of .pico instead. The purpose of this change is
1463 to avoid a name clash with shared libraries on case-insensitive file
1464 systems. On those file systems, foo.So is the same file as foo.so.
1467 GNU rcs has been turned off by default. It can (temporarily) be built
1468 again by adding WITH_RCS knob in src.conf.
1469 Otherwise, GNU rcs is available from packages:
1470 - rcs: Latest GPLv3 GNU rcs version.
1471 - rcs57: Copy of the latest version of GNU rcs (GPLv2) from base.
1474 The backup_uses_rcs functionality has been removed from rc.subr.
1477 The queue(3) debugging macro, QUEUE_MACRO_DEBUG, has been split into
1478 two separate components, QUEUE_MACRO_DEBUG_TRACE and
1479 QUEUE_MACRO_DEBUG_TRASH. Define both for the original
1480 QUEUE_MACRO_DEBUG behavior.
1483 r304787 changed some ioctl interfaces between the iSCSI userspace
1484 programs and the kernel. ctladm, ctld, iscsictl, and iscsid must be
1485 rebuilt to work with new kernels. __FreeBSD_version has been bumped
1489 The UDP receive code has been updated to only treat incoming UDP
1490 packets that were addressed to an L2 broadcast address as L3
1491 broadcast packets. It is not expected that this will affect any
1492 standards-conforming UDP application. The new behaviour can be
1493 disabled by setting the sysctl net.inet.udp.require_l2_bcast to
1497 Remove the openbsd_poll system call.
1498 __FreeBSD_version has been bumped because of this.
1501 The stable/11 branch has been created from head@r302406.
1504 The libc stub for the pipe(2) system call has been replaced with
1505 a wrapper that calls the pipe2(2) system call and the pipe(2)
1506 system call is now only implemented by the kernels that include
1507 "options COMPAT_FREEBSD10" in their config file (this is the
1508 default). Users should ensure that this option is enabled in
1509 their kernel or upgrade userspace to r302092 before upgrading their
1513 CAM will now strip leading spaces from SCSI disks' serial numbers.
1514 This will affect users who create UFS filesystems on SCSI disks using
1515 those disk's diskid device nodes. For example, if /etc/fstab
1516 previously contained a line like
1517 "/dev/diskid/DISK-%20%20%20%20%20%20%20ABCDEFG0123456", you should
1518 change it to "/dev/diskid/DISK-ABCDEFG0123456". Users of geom
1519 transforms like gmirror may also be affected. ZFS users should
1523 The bitstring(3) API has been updated with new functionality and
1524 improved performance. But it is binary-incompatible with the old API.
1525 Objects built with the new headers may not be linked against objects
1526 built with the old headers.
1529 The brk and sbrk functions have been removed from libc on arm64.
1530 Binutils from ports has been updated to not link to these
1531 functions and should be updated to the latest version before
1532 installing a new libc.
1535 The armv6 port now defaults to hard float ABI. Limited support
1536 for running both hardfloat and soft float on the same system
1537 is available using the libraries installed with -DWITH_LIBSOFT.
1538 This has only been tested as an upgrade path for installworld
1539 and packages may fail or need manual intervention to run. New
1540 packages will be needed.
1542 To update an existing self-hosted armv6hf system, you must add
1543 TARGET_ARCH=armv6 on the make command line for both the build
1544 and the install steps.
1547 Kernel modules compiled outside of a kernel build now default to
1548 installing to /boot/modules instead of /boot/kernel. Many kernel
1549 modules built this way (such as those in ports) already overrode
1550 KMODDIR explicitly to install into /boot/modules. However,
1551 manually building and installing a module from /sys/modules will
1552 now install to /boot/modules instead of /boot/kernel.
1555 The CAM I/O scheduler has been committed to the kernel. There should be
1556 no user visible impact. This does enable NCQ Trim on ada SSDs. While the
1557 list of known rogues that claim support for this but actually corrupt
1558 data is believed to be complete, be on the lookout for data
1559 corruption. The known rogue list is believed to be complete:
1561 o Crucial MX100, M550 drives with MU01 firmware.
1562 o Micron M510 and M550 drives with MU01 firmware.
1563 o Micron M500 prior to MU07 firmware
1564 o Samsung 830, 840, and 850 all firmwares
1565 o FCCT M500 all firmwares
1567 Crucial has firmware http://www.crucial.com/usa/en/support-ssd-firmware
1568 with working NCQ TRIM. For Micron branded drives, see your sales rep for
1569 updated firmware. Black listed drives will work correctly because these
1570 drives work correctly so long as no NCQ TRIMs are sent to them. Given
1571 this list is the same as found in Linux, it's believed there are no
1572 other rogues in the market place. All other models from the above
1575 To be safe, if you are at all concerned, you can quirk each of your
1576 drives to prevent NCQ from being sent by setting:
1577 kern.cam.ada.X.quirks="0x2"
1578 in loader.conf. If the drive requires the 4k sector quirk, set the
1579 quirks entry to 0x3.
1582 The FAST_DEPEND build option has been removed and its functionality is
1583 now the one true way. The old mkdep(1) style of 'make depend' has
1584 been removed. See 20160311 for further details.
1587 Resource range types have grown from unsigned long to uintmax_t. All
1588 drivers, and anything using libdevinfo, need to be recompiled.
1591 WITH_FAST_DEPEND is now enabled by default for in-tree and out-of-tree
1592 builds. It no longer runs mkdep(1) during 'make depend', and the
1593 'make depend' stage can safely be skipped now as it is auto ran
1594 when building 'make all' and will generate all SRCS and DPSRCS before
1595 building anything else. Dependencies are gathered at compile time with
1596 -MF flags kept in separate .depend files per object file. Users should
1597 run 'make cleandepend' once if using -DNO_CLEAN to clean out older
1598 stale .depend files.
1601 On amd64, clang 3.8.0 can now insert sections of type AMD64_UNWIND into
1602 kernel modules. Therefore, if you load any kernel modules at boot time,
1603 please install the boot loaders after you install the kernel, but before
1607 make buildkernel KERNCONF=YOUR_KERNEL_HERE
1608 make installkernel KERNCONF=YOUR_KERNEL_HERE
1609 make -C sys/boot install
1610 <reboot in single user>
1612 Then follow the usual steps, described in the General Notes section,
1616 Clang, llvm, lldb and compiler-rt have been upgraded to 3.8.0. Please
1617 see the 20141231 entry below for information about prerequisites and
1618 upgrading, if you are not already using clang 3.5.0 or higher.
1621 The AIO subsystem is now a standard part of the kernel. The
1622 VFS_AIO kernel option and aio.ko kernel module have been removed.
1623 Due to stability concerns, asynchronous I/O requests are only
1624 permitted on sockets and raw disks by default. To enable
1625 asynchronous I/O requests on all file types, set the
1626 vfs.aio.enable_unsafe sysctl to a non-zero value.
1629 The ELF object manipulation tool objcopy is now provided by the
1630 ELF Tool Chain project rather than by GNU binutils. It should be a
1631 drop-in replacement, with the addition of arm64 support. The
1632 (temporary) src.conf knob WITHOUT_ELFCOPY_AS_OBJCOPY knob may be set
1633 to obtain the GNU version if necessary.
1636 Building ZFS pools on top of zvols is prohibited by default. That
1637 feature has never worked safely; it's always been prone to deadlocks.
1638 Using a zvol as the backing store for a VM guest's virtual disk will
1639 still work, even if the guest is using ZFS. Legacy behavior can be
1640 restored by setting vfs.zfs.vol.recursive=1.
1643 The NONE and HPN patches has been removed from OpenSSH. They are
1644 still available in the security/openssh-portable port.
1647 With the addition of ypldap(8), a new _ypldap user is now required
1648 during installworld. "mergemaster -p" can be used to add the user
1649 prior to installworld, as documented in the handbook.
1652 The tftp loader (pxeboot) now uses the option root-path directive. As a
1653 consequence it no longer looks for a pxeboot.4th file on the tftp
1654 server. Instead it uses the regular /boot infrastructure as with the
1658 The code to start recording plug and play data into the modules has
1659 been committed. While the old tools will properly build a new kernel,
1660 a number of warnings about "unknown metadata record 4" will be produced
1661 for an older kldxref. To avoid such warnings, make sure to rebuild
1662 the kernel toolchain (or world). Make sure that you have r292078 or
1663 later when trying to build 292077 or later before rebuilding.
1666 Debug data files are now built by default with 'make buildworld' and
1667 installed with 'make installworld'. This facilitates debugging but
1668 requires more disk space both during the build and for the installed
1669 world. Debug files may be disabled by setting WITHOUT_DEBUG_FILES=yes
1673 r291527 changed the internal interface between the nfsd.ko and
1674 nfscommon.ko modules. As such, they must both be upgraded to-gether.
1675 __FreeBSD_version has been bumped because of this.
1678 Add support for unicode collation strings leads to a change of
1679 order of files listed by ls(1) for example. To get back to the old
1680 behaviour, set LC_COLLATE environment variable to "C".
1682 Databases administrators will need to reindex their databases given
1683 collation results will be different.
1685 Due to a bug in install(1) it is recommended to remove the ancient
1686 locales before running make installworld.
1688 rm -rf /usr/share/locale/*
1691 The OpenSSL has been upgraded to 1.0.2d. Any binaries requiring
1692 libcrypto.so.7 or libssl.so.7 must be recompiled.
1695 Qlogic 24xx/25xx firmware images were updated from 5.5.0 to 7.3.0.
1696 Kernel modules isp_2400_multi and isp_2500_multi were removed and
1697 should be replaced with isp_2400 and isp_2500 modules respectively.
1700 The build previously allowed using 'make -n' to not recurse into
1701 sub-directories while showing what commands would be executed, and
1702 'make -n -n' to recursively show commands. Now 'make -n' will recurse
1703 and 'make -N' will not.
1706 If you specify SENDMAIL_MC or SENDMAIL_CF in make.conf, mergemaster
1707 and etcupdate will now use this file. A custom sendmail.cf is now
1708 updated via this mechanism rather than via installworld. If you had
1709 excluded sendmail.cf in mergemaster.rc or etcupdate.conf, you may
1710 want to remove the exclusion or change it to "always install".
1711 /etc/mail/sendmail.cf is now managed the same way regardless of
1712 whether SENDMAIL_MC/SENDMAIL_CF is used. If you are not using
1713 SENDMAIL_MC/SENDMAIL_CF there should be no change in behavior.
1716 Compatibility shims for legacy ATA device names have been removed.
1717 It includes ATA_STATIC_ID kernel option, kern.cam.ada.legacy_aliases
1718 and kern.geom.raid.legacy_aliases loader tunables, kern.devalias.*
1719 environment variables, /dev/ad* and /dev/ar* symbolic links.
1722 Clang, llvm, lldb, compiler-rt and libc++ have been upgraded to 3.7.0.
1723 Please see the 20141231 entry below for information about prerequisites
1724 and upgrading, if you are not already using clang 3.5.0 or higher.
1727 Kernel debug files have been moved to /usr/lib/debug/boot/kernel/,
1728 and renamed from .symbols to .debug. This reduces the size requirements
1729 on the boot partition or file system and provides consistency with
1730 userland debug files.
1732 When using the supported kernel installation method the
1733 /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old)
1734 as is done with /boot/kernel.
1736 Developers wishing to maintain the historical behavior of installing
1737 debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5).
1740 The wireless drivers had undergone changes that remove the 'parent
1741 interface' from the ifconfig -l output. The rc.d network scripts
1742 used to check presence of a parent interface in the list, so old
1743 scripts would fail to start wireless networking. Thus, etcupdate(3)
1744 or mergemaster(8) run is required after kernel update, to update your
1745 rc.d scripts in /etc.
1748 pf no longer supports 'scrub fragment crop' or 'scrub fragment drop-ovl'
1749 These configurations are now automatically interpreted as
1750 'scrub fragment reassemble'.
1753 Kernel-loadable modules for the random(4) device are back. To use
1754 them, the kernel must have
1757 options RANDOM_LOADABLE
1759 kldload(8) can then be used to load random_fortuna.ko
1760 or random_yarrow.ko. Please note that due to the indirect
1761 function calls that the loadable modules need to provide,
1762 the build-in variants will be slightly more efficient.
1764 The random(4) kernel option RANDOM_DUMMY has been retired due to
1765 unpopularity. It was not all that useful anyway.
1768 The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired.
1769 Control over building the ELF Tool Chain tools is now provided by
1770 the WITHOUT_TOOLCHAIN knob.
1773 The polarity of Pulse Per Second (PPS) capture events with the
1774 uart(4) driver has been corrected. Prior to this change the PPS
1775 "assert" event corresponded to the trailing edge of a positive PPS
1776 pulse and the "clear" event was the leading edge of the next pulse.
1778 As the width of a PPS pulse in a typical GPS receiver is on the
1779 order of 1 millisecond, most users will not notice any significant
1780 difference with this change.
1782 Anyone who has compensated for the historical polarity reversal by
1783 configuring a negative offset equal to the pulse width will need to
1784 remove that workaround.
1787 The default group assigned to /dev/dri entries has been changed
1788 from 'wheel' to 'video' with the id of '44'. If you want to have
1789 access to the dri devices please add yourself to the video group
1792 # pw groupmod video -m $USER
1795 The menu.rc and loader.rc files will now be replaced during
1796 upgrades. Please migrate local changes to menu.rc.local and
1797 loader.rc.local instead.
1800 GNU Binutils versions of addr2line, c++filt, nm, readelf, size,
1801 strings and strip have been removed. The src.conf(5) knob
1802 WITHOUT_ELFTOOLCHAIN_TOOLS no longer provides the binutils tools.
1805 As ZFS requires more kernel stack pages than is the default on some
1806 architectures e.g. i386, it now warns if KSTACK_PAGES is less than
1807 ZFS_MIN_KSTACK_PAGES (which is 4 at the time of writing).
1809 Please consider using 'options KSTACK_PAGES=X' where X is greater
1810 than or equal to ZFS_MIN_KSTACK_PAGES i.e. 4 in such configurations.
1813 sendmail has been updated to 8.15.2. Starting with FreeBSD 11.0
1814 and sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
1815 default, i.e., they will not contain "::". For example, instead
1816 of ::1, it will be 0:0:0:0:0:0:0:1. This permits a zero subnet
1817 to have a more specific match, such as different map entries for
1818 IPv6:0:0 vs IPv6:0. This change requires that configuration
1819 data (including maps, files, classes, custom ruleset, etc.) must
1820 use the same format, so make certain such configuration data is
1821 upgrading. As a very simple check search for patterns like
1822 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the old
1823 behavior, set the m4 option confUSE_COMPRESSED_IPV6_ADDRESSES or
1824 the cf option UseCompressedIPv6Addresses.
1827 The default kernel entropy-processing algorithm is now
1828 Fortuna, replacing Yarrow.
1830 Assuming you have 'device random' in your kernel config
1831 file, the configurations allow a kernel option to override
1832 this default. You may choose *ONE* of:
1834 options RANDOM_YARROW # Legacy /dev/random algorithm.
1835 options RANDOM_DUMMY # Blocking-only driver.
1837 If you have neither, you get Fortuna. For most people,
1838 read no further, Fortuna will give a /dev/random that works
1839 like it always used to, and the difference will be irrelevant.
1841 If you remove 'device random', you get *NO* kernel-processed
1842 entropy at all. This may be acceptable to folks building
1843 embedded systems, but has complications. Carry on reading,
1844 and it is assumed you know what you need.
1846 *PLEASE* read random(4) and random(9) if you are in the
1847 habit of tweaking kernel configs, and/or if you are a member
1848 of the embedded community, wanting specific and not-usual
1849 behaviour from your security subsystems.
1851 NOTE!! If you use RANDOM_DUMMY and/or have no 'device
1852 random', you will NOT have a functioning /dev/random, and
1853 many cryptographic features will not work, including SSH.
1854 You may also find strange behaviour from the random(3) set
1855 of library functions, in particular sranddev(3), srandomdev(3)
1856 and arc4random(3). The reason for this is that the KERN_ARND
1857 sysctl only returns entropy if it thinks it has some to
1858 share, and with RANDOM_DUMMY or no 'device random' this
1862 An additional fix for the issue described in the 20150614 sendmail
1863 entry below has been committed in revision 284717.
1866 FreeBSD's old make (fmake) has been removed from the system. It is
1867 available as the devel/fmake port or via pkg install fmake.
1870 The fix for the issue described in the 20150614 sendmail entry
1871 below has been committed in revision 284436. The work
1872 around described in that entry is no longer needed unless the
1873 default setting is overridden by a confDH_PARAMETERS configuration
1874 setting of '5' or pointing to a 512 bit DH parameter file.
1877 ALLOW_DEPRECATED_ATF_TOOLS/ATFFILE support has been removed from
1878 atf.test.mk (included from bsd.test.mk). Please upgrade devel/atf
1879 and devel/kyua to version 0.20+ and adjust any calling code to work
1880 with Kyuafile and kyua.
1883 The import of openssl to address the FreeBSD-SA-15:10.openssl
1884 security advisory includes a change which rejects handshakes
1885 with DH parameters below 768 bits. sendmail releases prior
1886 to 8.15.2 (not yet released), defaulted to a 512 bit
1887 DH parameter setting for client connections. To work around
1888 this interoperability, sendmail can be configured to use a
1889 2048 bit DH parameter by:
1891 1. Edit /etc/mail/`hostname`.mc
1892 2. If a setting for confDH_PARAMETERS does not exist or
1893 exists and is set to a string beginning with '5',
1894 replace it with '2'.
1895 3. If a setting for confDH_PARAMETERS exists and is set to
1896 a file path, create a new file with:
1897 openssl dhparam -out /path/to/file 2048
1898 4. Rebuild the .cf file:
1899 cd /etc/mail/; make; make install
1900 5. Restart sendmail:
1901 cd /etc/mail/; make restart
1903 A sendmail patch is coming, at which time this file will be
1907 Generation of legacy formatted entries have been disabled by default
1908 in pwd_mkdb(8), as all base system consumers of the legacy formatted
1909 entries were converted to use the new format by default when the new,
1910 machine independent format have been added and supported since FreeBSD
1913 Please see the pwd_mkdb(8) manual page for further details.
1916 Clang and llvm have been upgraded to 3.6.1 release. Please see the
1917 20141231 entry below for information about prerequisites and upgrading,
1918 if you are not already using 3.5.0 or higher.
1921 TI platform code switched to using vendor DTS files and this update
1922 may break existing systems running on Beaglebone, Beaglebone Black,
1925 - dtb files should be regenerated/reinstalled. Filenames are the
1926 same but content is different now
1927 - GPIO addressing was changed, now each GPIO bank (32 pins per bank)
1928 has its own /dev/gpiocX device, e.g. pin 121 on /dev/gpioc0 in old
1929 addressing scheme is now pin 25 on /dev/gpioc3.
1930 - Pandaboard: /etc/ttys should be updated, serial console device is
1931 now /dev/ttyu2, not /dev/ttyu0
1934 soelim(1) from gnu/usr.bin/groff has been replaced by usr.bin/soelim.
1935 If you need the GNU extension from groff soelim(1), install groff
1936 from package: pkg install groff, or via ports: textproc/groff.
1939 chmod, chflags, chown and chgrp now affect symlinks in -R mode as
1940 defined in symlink(7); previously symlinks were silently ignored.
1943 The const qualifier has been removed from iconv(3) to comply with
1944 POSIX. The ports tree is aware of this from r384038 onwards.
1947 Libraries specified by LIBADD in Makefiles must have a corresponding
1948 DPADD_<lib> variable to ensure correct dependencies. This is now
1949 enforced in src.libnames.mk.
1952 From legacy ata(4) driver was removed support for SATA controllers
1953 supported by more functional drivers ahci(4), siis(4) and mvs(4).
1954 Kernel modules ataahci and ataadaptec were removed completely,
1955 replaced by ahci and mvs modules respectively.
1958 Clang, llvm and lldb have been upgraded to 3.6.0 release. Please see
1959 the 20141231 entry below for information about prerequisites and
1960 upgrading, if you are not already using 3.5.0 or higher.
1963 The 32-bit PowerPC kernel has been changed to a position-independent
1964 executable. This can only be booted with a version of loader(8)
1965 newer than January 31, 2015, so make sure to update both world and
1966 kernel before rebooting.
1969 If you are running a -CURRENT kernel since r273872 (Oct 30th, 2014),
1970 but before r278950, the RNG was not seeded properly. Immediately
1971 upgrade the kernel to r278950 or later and regenerate any keys (e.g.
1972 ssh keys or openssl keys) that were generated w/ a kernel from that
1973 range. This does not affect programs that directly used /dev/random
1974 or /dev/urandom. All userland uses of arc4random(3) are affected.
1977 The autofs(4) ABI was changed in order to restore binary compatibility
1978 with 10.1-RELEASE. The automountd(8) daemon needs to be rebuilt to work
1979 with the new kernel.
1982 The powerpc64 kernel has been changed to a position-independent
1983 executable. This can only be booted with a new version of loader(8),
1984 so make sure to update both world and kernel before rebooting.
1987 Clang and llvm have been upgraded to 3.5.1 release. This is a bugfix
1988 only release, no new features have been added. Please see the 20141231
1989 entry below for information about prerequisites and upgrading, if you
1990 are not already using 3.5.0.
1993 ELF tools addr2line, elfcopy (strip), nm, size, and strings are now
1994 taken from the ELF Tool Chain project rather than GNU binutils. They
1995 should be drop-in replacements, with the addition of arm64 support.
1996 The WITHOUT_ELFTOOLCHAIN_TOOLS= knob may be used to obtain the
1997 binutils tools, if necessary. See 20150805 for updated information.
2000 The default Unbound configuration now enables remote control
2001 using a local socket. Users who have already enabled the
2002 local_unbound service should regenerate their configuration
2003 by running "service local_unbound setup" as root.
2006 The GNU texinfo and GNU info pages have been removed.
2007 To be able to view GNU info pages please install texinfo from ports.
2010 Clang, llvm and lldb have been upgraded to 3.5.0 release.
2012 As of this release, a prerequisite for building clang, llvm and lldb is
2013 a C++11 capable compiler and C++11 standard library. This means that to
2014 be able to successfully build the cross-tools stage of buildworld, with
2015 clang as the bootstrap compiler, your system compiler or cross compiler
2016 should either be clang 3.3 or later, or gcc 4.8 or later, and your
2017 system C++ library should be libc++, or libdstdc++ from gcc 4.8 or
2020 On any standard FreeBSD 10.x or 11.x installation, where clang and
2021 libc++ are on by default (that is, on x86 or arm), this should work out
2024 On 9.x installations where clang is enabled by default, e.g. on x86 and
2025 powerpc, libc++ will not be enabled by default, so libc++ should be
2026 built (with clang) and installed first. If both clang and libc++ are
2027 missing, build clang first, then use it to build libc++.
2029 On 8.x and earlier installations, upgrade to 9.x first, and then follow
2030 the instructions for 9.x above.
2032 Sparc64 and mips users are unaffected, as they still use gcc 4.2.1 by
2033 default, and do not build clang.
2035 Many embedded systems are resource constrained, and will not be able to
2036 build clang in a reasonable time, or in some cases at all. In those
2037 cases, cross building bootable systems on amd64 is a workaround.
2039 This new version of clang introduces a number of new warnings, of which
2040 the following are most likely to appear:
2044 This warns in two cases, for both C and C++:
2045 * When the code is trying to take the absolute value of an unsigned
2046 quantity, which is effectively a no-op, and almost never what was
2047 intended. The code should be fixed, if at all possible. If you are
2048 sure that the unsigned quantity can be safely cast to signed, without
2049 loss of information or undefined behavior, you can add an explicit
2050 cast, or disable the warning.
2052 * When the code is trying to take an absolute value, but the called
2053 abs() variant is for the wrong type, which can lead to truncation.
2054 If you want to disable the warning instead of fixing the code, please
2055 make sure that truncation will not occur, or it might lead to unwanted
2058 -Wtautological-undefined-compare and
2059 -Wundefined-bool-conversion
2061 These warn when C++ code is trying to compare 'this' against NULL, while
2062 'this' should never be NULL in well-defined C++ code. However, there is
2063 some legacy (pre C++11) code out there, which actively abuses this
2064 feature, which was less strictly defined in previous C++ versions.
2066 Squid and openjdk do this, for example. The warning can be turned off
2067 for C++98 and earlier, but compiling the code in C++11 mode might result
2068 in unexpected behavior; for example, the parts of the program that are
2069 unreachable could be optimized away.
2072 The old NFS client and server (kernel options NFSCLIENT, NFSSERVER)
2073 kernel sources have been removed. The .h files remain, since some
2074 utilities include them. This will need to be fixed later.
2075 If "mount -t oldnfs ..." is attempted, it will fail.
2076 If the "-o" option on mountd(8), nfsd(8) or nfsstat(1) is used,
2077 the utilities will report errors.
2080 The handling of LOCAL_LIB_DIRS has been altered to skip addition of
2081 directories to top level SUBDIR variable when their parent
2082 directory is included in LOCAL_DIRS. Users with build systems with
2083 such hierarchies and without SUBDIR entries in the parent
2084 directory Makefiles should add them or add the directories to
2088 faith(4) and faithd(8) have been removed from the base system. Faith
2089 has been obsolete for a very long time.
2092 vt(4), the new console driver, is enabled by default. It brings
2093 support for Unicode and double-width characters, as well as
2094 support for UEFI and integration with the KMS kernel video
2097 You may need to update your console settings in /etc/rc.conf,
2098 most probably the keymap. During boot, /etc/rc.d/syscons will
2099 indicate what you need to do.
2101 vt(4) still has issues and lacks some features compared to
2102 syscons(4). See the wiki for up-to-date information:
2103 https://wiki.freebsd.org/Newcons
2105 If you want to keep using syscons(4), you can do so by adding
2106 the following line to /boot/loader.conf:
2110 pjdfstest has been integrated into kyua as an opt-in test suite.
2111 Please see share/doc/pjdfstest/README for more details on how to
2115 gperf has been removed from the base system for architectures
2116 that use clang. Ports that require gperf will obtain it from the
2120 pjdfstest has been moved from tools/regression/pjdfstest to
2124 At svn r271982, The default linux compat kernel ABI has been adjusted
2125 to 2.6.18 in support of the linux-c6 compat ports infrastructure
2126 update. If you wish to continue using the linux-f10 compat ports,
2127 add compat.linux.osrelease=2.6.16 to your local sysctl.conf. Users are
2128 encouraged to update their linux-compat packages to linux-c6 during
2129 their next update cycle.
2132 The ofwfb driver, used to provide a graphics console on PowerPC when
2133 using vt(4), no longer allows mmap() of all physical memory. This
2134 will prevent Xorg on PowerPC with some ATI graphics cards from
2135 initializing properly unless x11-servers/xorg-server is updated to
2139 The xdev targets have been converted to using TARGET and
2140 TARGET_ARCH instead of XDEV and XDEV_ARCH.
2143 The default unbound configuration has been modified to address
2144 issues with reverse lookups on networks that use private
2145 address ranges. If you use the local_unbound service, run
2146 "service local_unbound setup" as root to regenerate your
2147 configuration, then "service local_unbound reload" to load the
2151 The GNU texinfo and GNU info pages are not built and installed
2152 anymore, WITH_INFO knob has been added to allow to built and install
2154 UPDATE: see 20150102 entry on texinfo's removal
2157 The GNU readline library is now an INTERNALLIB - that is, it is
2158 statically linked into consumers (GDB and variants) in the base
2159 system, and the shared library is no longer installed. The
2160 devel/readline port is available for third party software that
2164 The Itanium architecture (ia64) has been removed from the list of
2165 known architectures. This is the first step in the removal of the
2169 Commit r268115 has added NFSv4.1 server support, merged from
2170 projects/nfsv4.1-server. Since this includes changes to the
2171 internal interfaces between the NFS related modules, a full
2172 build of the kernel and modules will be necessary.
2173 __FreeBSD_version has been bumped.
2176 The WITHOUT_VT_SUPPORT kernel config knob has been renamed
2177 WITHOUT_VT. (The other _SUPPORT knobs have a consistent meaning
2178 which differs from the behaviour controlled by this knob.)
2181 Maximal length of the serial number in CTL was increased from 16 to
2182 64 chars, that breaks ABI. All CTL-related tools, such as ctladm
2183 and ctld, need to be rebuilt to work with a new kernel.
2186 The libatf-c and libatf-c++ major versions were downgraded to 0 and
2187 1 respectively to match the upstream numbers. They were out of
2188 sync because, when they were originally added to FreeBSD, the
2189 upstream versions were not respected. These libraries are private
2190 and not yet built by default, so renumbering them should be a
2191 non-issue. However, unclean source trees will yield broken test
2192 programs once the operator executes "make delete-old-libs" after a
2193 "make installworld".
2195 Additionally, the atf-sh binary was made private by moving it into
2196 /usr/libexec/. Already-built shell test programs will keep the
2197 path to the old binary so they will break after "make delete-old"
2200 If you are using WITH_TESTS=yes (not the default), wipe the object
2201 tree and rebuild from scratch to prevent spurious test failures.
2202 This is only needed once: the misnumbered libraries and misplaced
2203 binaries have been added to OptionalObsoleteFiles.inc so they will
2204 be removed during a clean upgrade.
2207 Clang and llvm have been upgraded to 3.4.1 release.
2210 We bogusly installed src.opts.mk in /usr/share/mk. This file should
2211 be removed to avoid issues in the future (and has been added to
2215 /etc/src.conf now affects only builds of the FreeBSD src tree. In the
2216 past, it affected all builds that used the bsd.*.mk files. The old
2217 behavior was a bug, but people may have relied upon it. To get this
2218 behavior back, you can .include /etc/src.conf from /etc/make.conf
2219 (which is still global and isn't changed). This also changes the
2220 behavior of incremental builds inside the tree of individual
2221 directories. Set MAKESYSPATH to ".../share/mk" to do that.
2222 Although this has survived make universe and some upgrade scenarios,
2223 other upgrade scenarios may have broken. At least one form of
2224 temporary breakage was fixed with MAKESYSPATH settings for buildworld
2225 as well... In cases where MAKESYSPATH isn't working with this
2226 setting, you'll need to set it to the full path to your tree.
2228 One side effect of all this cleaning up is that bsd.compiler.mk
2229 is no longer implicitly included by bsd.own.mk. If you wish to
2230 use COMPILER_TYPE, you must now explicitly include bsd.compiler.mk
2234 The lindev device has been removed since /dev/full has been made a
2235 standard device. __FreeBSD_version has been bumped.
2238 The knob WITHOUT_VI was added to the base system, which controls
2239 building ex(1), vi(1), etc. Older releases of FreeBSD required ex(1)
2240 in order to reorder files share/termcap and didn't build ex(1) as a
2241 build tool, so building/installing with WITH_VI is highly advised for
2242 build hosts for older releases.
2244 This issue has been fixed in stable/9 and stable/10 in r277022 and
2245 r276991, respectively.
2248 The YES_HESIOD knob has been removed. It has been obsolete for
2249 a decade. Please move to using WITH_HESIOD instead or your builds
2250 will silently lack HESIOD.
2253 The uart(4) driver has been changed with respect to its handling
2254 of the low-level console. Previously the uart(4) driver prevented
2255 any process from changing the baudrate or the CLOCAL and HUPCL
2256 control flags. By removing the restrictions, operators can make
2257 changes to the serial console port without having to reboot.
2258 However, when getty(8) is started on the serial device that is
2259 associated with the low-level console, a misconfigured terminal
2260 line in /etc/ttys will now have a real impact.
2261 Before upgrading the kernel, make sure that /etc/ttys has the
2262 serial console device configured as 3wire without baudrate to
2263 preserve the previous behaviour. E.g:
2264 ttyu0 "/usr/libexec/getty 3wire" vt100 on secure
2267 Support for libwrap (TCP wrappers) in rpcbind was disabled by default
2268 to improve performance. To re-enable it, if needed, run rpcbind
2269 with command line option -W.
2272 Switched back to the GPL dtc compiler due to updates in the upstream
2273 dts files not being supported by the BSDL dtc compiler. You will need
2274 to rebuild your kernel toolchain to pick up the new compiler. Core dumps
2275 may result while building dtb files during a kernel build if you fail
2276 to do so. Set WITHOUT_GPL_DTC if you require the BSDL compiler.
2279 Clang and llvm have been upgraded to 3.4 release.
2282 The nve(4) driver has been removed. Please use the nfe(4) driver
2283 for NVIDIA nForce MCP Ethernet adapters instead.
2286 An ABI incompatibility crept into the libc++ 3.4 import in r261283.
2287 This could cause certain C++ applications using shared libraries built
2288 against the previous version of libc++ to crash. The incompatibility
2289 has now been fixed, but any C++ applications or shared libraries built
2290 between r261283 and r261801 should be recompiled.
2293 OpenSSH will now ignore errors caused by kernel lacking of Capsicum
2294 capability mode support. Please note that enabling the feature in
2295 kernel is still highly recommended.
2298 OpenSSH is now built with sandbox support, and will use sandbox as
2299 the default privilege separation method. This requires Capsicum
2300 capability mode support in kernel.
2303 The libelf and libdwarf libraries have been updated to newer
2304 versions from upstream. Shared library version numbers for
2305 these two libraries were bumped. Any ports or binaries
2306 requiring these two libraries should be recompiled.
2307 __FreeBSD_version is bumped to 1100006.
2310 If a Makefile in a tests/ directory was auto-generating a Kyuafile
2311 instead of providing an explicit one, this would prevent such
2312 Makefile from providing its own Kyuafile in the future during
2313 NO_CLEAN builds. This has been fixed in the Makefiles but manual
2314 intervention is needed to clean an objdir if you use NO_CLEAN:
2315 # find /usr/obj -name Kyuafile | xargs rm -f
2318 The behavior of gss_pseudo_random() for the krb5 mechanism
2319 has changed, for applications requesting a longer random string
2320 than produced by the underlying enctype's pseudo-random() function.
2321 In particular, the random string produced from a session key of
2322 enctype aes256-cts-hmac-sha1-96 or aes256-cts-hmac-sha1-96 will
2323 be different at the 17th octet and later, after this change.
2324 The counter used in the PRF+ construction is now encoded as a
2325 big-endian integer in accordance with RFC 4402.
2326 __FreeBSD_version is bumped to 1100004.
2329 The WITHOUT_ATF build knob has been removed and its functionality
2330 has been subsumed into the more generic WITHOUT_TESTS. If you were
2331 using the former to disable the build of the ATF libraries, you
2332 should change your settings to use the latter.
2335 The default version of mtree is nmtree which is obtained from
2336 NetBSD. The output is generally the same, but may vary
2337 slightly. If you found you need identical output adding
2338 "-F freebsd9" to the command line should do the trick. For the
2339 time being, the old mtree is available as fmtree.
2342 libbsdyml has been renamed to libyaml and moved to /usr/lib/private.
2343 This will break ports-mgmt/pkg. Rebuild the port, or upgrade to pkg
2344 1.1.4_8 and verify bsdyml not linked in, before running "make
2346 # make -C /usr/ports/ports-mgmt/pkg build deinstall install clean
2348 # pkg install pkg; ldd /usr/local/sbin/pkg | grep bsdyml
2351 The stable/10 branch has been created in subversion from head
2358 Sometimes, obscure build problems are the result of environment
2359 poisoning. This can happen because the make utility reads its
2360 environment when searching for values for global variables. To run
2361 your build attempts in an "environmental clean room", prefix all make
2362 commands with 'env -i '. See the env(1) manual page for more details.
2363 Occasionally a build failure will occur with "make -j" due to a race
2364 condition. If this happens try building again without -j, and please
2365 report a bug if it happens consistently.
2367 When upgrading from one major version to another it is generally best to
2368 upgrade to the latest code in the currently installed branch first, then
2369 do an upgrade to the new branch. This is the best-tested upgrade path,
2370 and has the highest probability of being successful. Please try this
2371 approach if you encounter problems with a major version upgrade. Since
2372 the stable 4.x branch point, one has generally been able to upgrade from
2373 anywhere in the most recent stable branch to head / current (or even the
2374 last couple of stable branches). See the top of this file when there's
2377 The update process will emit an error on an attempt to perform a build
2378 or install from a FreeBSD version below the earliest supported version.
2379 When updating from an older version the update should be performed one
2380 major release at a time, including running `make delete-old` at each
2383 When upgrading a live system, having a root shell around before
2384 installing anything can help undo problems. Not having a root shell
2385 around can lead to problems if pam has changed too much from your
2386 starting point to allow continued authentication after the upgrade.
2388 This file should be read as a log of events. When a later event changes
2389 information of a prior event, the prior event should not be deleted.
2390 Instead, a pointer to the entry with the new information should be
2391 placed in the old entry. Readers of this file should also sanity check
2392 older entries before relying on them blindly. Authors of new entries
2393 should write them with this in mind.
2397 When upgrading the boot ZFS pool to a new version, always follow
2400 1.) recompile and reinstall the ZFS boot loader and boot block
2401 (this is part of "make buildworld" and "make installworld")
2403 2.) update the ZFS boot block on your boot drive
2405 The following example updates the ZFS boot block on the
2406 freebsd-boot partition of a GPT partitioned drive ada0:
2407 "gpart bootcode -p /boot/gptzfsboot -i $N ada0"
2408 The value $N will typically be 1 (if booting from BIOS) or 2 (if
2411 Non-boot pools do not need these updates.
2415 If you are updating from a prior version of FreeBSD (even one just
2416 a few days old), you should follow this procedure. It is the most
2417 failsafe as it uses a /usr/obj tree with a fresh mini-buildworld,
2419 make kernel-toolchain
2420 make -DALWAYS_CHECK_MAKE buildkernel KERNCONF=YOUR_KERNEL_HERE
2421 make -DALWAYS_CHECK_MAKE installkernel KERNCONF=YOUR_KERNEL_HERE
2423 To test a kernel once
2424 ---------------------
2425 If you just want to boot a kernel once (because you are not sure
2426 if it works, or if you want to boot a known bad kernel to provide
2427 debugging information) run
2428 make installkernel KERNCONF=YOUR_KERNEL_HERE KODIR=/boot/testkernel
2429 nextboot -k testkernel
2431 To rebuild everything and install it on the current system.
2432 -----------------------------------------------------------
2433 # Note: sometimes if you are running current you gotta do more than
2434 # is listed here if you are upgrading from a really old current.
2436 <make sure you have good level 0 dumps>
2438 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2439 make installkernel KERNCONF=YOUR_KERNEL_HERE
2441 <reboot in single user> [3]
2448 To cross-install current onto a separate partition
2449 --------------------------------------------------
2450 # In this approach we use a separate partition to hold
2451 # current's root, 'usr', and 'var' directories. A partition
2452 # holding "/", "/usr" and "/var" should be about 2GB in
2455 <make sure you have good level 0 dumps>
2458 make buildkernel KERNCONF=YOUR_KERNEL_HERE
2459 <maybe newfs current's root partition>
2460 <mount current's root partition on directory ${CURRENT_ROOT}>
2461 make installworld DESTDIR=${CURRENT_ROOT} -DDB_FROM_SRC
2462 make distribution DESTDIR=${CURRENT_ROOT} # if newfs'd
2463 make installkernel KERNCONF=YOUR_KERNEL_HERE DESTDIR=${CURRENT_ROOT}
2464 cp /etc/fstab ${CURRENT_ROOT}/etc/fstab # if newfs'd
2465 <edit ${CURRENT_ROOT}/etc/fstab to mount "/" from the correct partition>
2466 <reboot into current>
2467 <do a "native" rebuild/install as described in the previous section>
2468 <maybe install compatibility libraries from ports/misc/compat*>
2472 To upgrade in-place from stable to current
2473 ----------------------------------------------
2474 <make sure you have good level 0 dumps>
2476 make buildkernel KERNCONF=YOUR_KERNEL_HERE [8]
2477 make installkernel KERNCONF=YOUR_KERNEL_HERE
2479 <reboot in single user> [3]
2486 Make sure that you've read the UPDATING file to understand the
2487 tweaks to various things you need. At this point in the life
2488 cycle of current, things change often and you are on your own
2489 to cope. The defaults can also change, so please read ALL of
2490 the UPDATING entries.
2492 Also, if you are tracking -current, you must be subscribed to
2493 freebsd-current@freebsd.org. Make sure that before you update
2494 your sources that you have read and understood all the recent
2495 messages there. If in doubt, please track -stable which has
2496 much fewer pitfalls.
2498 [1] If you have third party modules, such as vmware, you should disable
2499 them at this point so they don't crash your system on
2500 reboot. Alternatively, you should rebuild all the modules you have in
2501 your system and install them as well. If you are running -current, you
2502 should seriously consider placing all sources to all the modules for
2503 your system (or symlinks to them) in /usr/local/sys/modules so this
2504 happens automatically. If all your modules come from ports, then adding
2505 the port origin directories to PORTS_MODULES instead is also automatic
2507 PORTS_MODULES+=x11/nvidia-driver
2509 [3] From the bootblocks, boot -s, and then do
2513 sh /etc/rc.d/zfs start # mount zfs filesystem, if needed
2514 cd src # full path to source
2515 adjkerntz -i # if CMOS is wall time
2516 Also, when doing a major release upgrade, it is required that you boot
2517 into single user mode to do the installworld.
2519 [4] Note: This step is non-optional. Failure to do this step
2520 can result in a significant reduction in the functionality of the
2521 system. Attempting to do it by hand is not recommended and those
2522 that pursue this avenue should read this file carefully, as well
2523 as the archives of freebsd-current and freebsd-hackers mailing lists
2524 for potential gotchas. The -U option is also useful to consider.
2525 See mergemaster(8) for more information.
2527 [5] Usually this step is a no-op. However, from time to time
2528 you may need to do this if you get unknown user in the following
2529 step. It never hurts to do it all the time. You may need to
2530 install a new mergemaster (cd src/usr.sbin/mergemaster && make
2531 install) after the buildworld before this step if you last updated
2532 from current before 20130425 or from -stable before 20130430.
2534 [6] This only deletes old files and directories. Old libraries
2535 can be deleted by "make delete-old-libs", but you have to make
2536 sure that no program is using those libraries anymore.
2538 [8] The new kernel must be able to run existing binaries used by an
2539 installworld. When upgrading across major versions, the new kernel's
2540 configuration must include the correct COMPAT_FREEBSD<n> option for
2541 existing binaries (e.g. COMPAT_FREEBSD11 to run 11.x binaries). Failure
2542 to do so may leave you with a system that is hard to boot to recover. A
2543 GENERIC kernel will include suitable compatibility options to run
2544 binaries from older branches. Note that the ability to run binaries
2545 from unsupported branches is not guaranteed.
2547 Make sure that you merge any new devices from GENERIC since the
2548 last time you updated your kernel config file. Options also
2549 change over time, so you may need to adjust your custom kernels
2552 [9] If CPUTYPE is defined in your /etc/make.conf, make sure to use the
2553 "?=" instead of the "=" assignment operator, so that buildworld can
2554 override the CPUTYPE if it needs to.
2556 MAKEOBJDIRPREFIX must be defined in an environment variable, and
2557 not on the command line, or in /etc/make.conf. buildworld will
2558 warn if it is improperly defined.
2561 This file contains a list, in reverse chronological order, of major
2562 breakages in tracking -current. It is not guaranteed to be a complete
2563 list of such breakages, and only contains entries since September 23, 2011.
2564 If you need to see UPDATING entries from before that date, you will need
2565 to fetch an UPDATING file from an older FreeBSD release.
2567 Copyright information:
2569 Copyright 1998-2009 M. Warner Losh <imp@FreeBSD.org>
2571 Redistribution, publication, translation and use, with or without
2572 modification, in full or in part, in any form or format of this
2573 document are permitted without further permission from the author.
2575 THIS DOCUMENT IS PROVIDED BY WARNER LOSH ``AS IS'' AND ANY EXPRESS OR
2576 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
2577 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
2578 DISCLAIMED. IN NO EVENT SHALL WARNER LOSH BE LIABLE FOR ANY DIRECT,
2579 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
2580 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
2581 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2582 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
2583 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
2584 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
2585 POSSIBILITY OF SUCH DAMAGE.
2587 Contact Warner Losh if you have any questions about your use of