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11 <article xmlns="http://docbook.org/ns/docbook"
12 xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
15 <title>&os; &release.current; Release Notes</title>
18 <orgname>The &os; Project</orgname>
21 <pubdate>$FreeBSD$</pubdate>
39 <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
43 <legalnotice xml:id="trademarks" role="trademarks">
53 <para>The release notes for &os; &release.current; contain
54 a summary of the changes made to the &os; base system on the
55 &release.branch; development line. This document lists
56 applicable security advisories that were issued since the last
57 release, as well as significant changes to the &os; kernel and
58 userland. Some brief remarks on upgrading are also
63 <sect1 xml:id="intro">
64 <title>Introduction</title>
66 <para>This document contains the release notes for &os;
67 &release.current;. It describes recently added, changed, or
68 deleted features of &os;. It also provides some notes on
69 upgrading from previous versions of &os;.</para>
71 <para releasetype="current">The &release.type; distribution to
72 which these release notes apply represents the latest point
73 along the &release.branch; development branch since
74 &release.branch; was created. Information regarding pre-built,
75 binary &release.type; distributions along this branch can be
77 xlink:href="&release.url;">&release.url;</uri>.</para>
79 <para releasetype="snapshot">The &release.type; distribution to
80 which these release notes apply represents a point along the
81 &release.branch; development branch between &release.prev; and
82 the future &release.next;. Information regarding pre-built,
83 binary &release.type; distributions along this branch can be
85 xlink:href="&release.url;">&release.url;</uri>.</para>
87 <para releasetype="release">This distribution of &os;
88 &release.current; is a &release.type; distribution. It can be
89 found at <uri xlink:href="&release.url;">&release.url;</uri> or
90 any of its mirrors. More information on obtaining this (or
91 other) &release.type; distributions of &os; can be found in the
93 xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
94 &os;</quote> appendix</link> to the <link
95 xlink:href="&url.books.handbook;/">&os;
96 Handbook</link>.</para>
98 <para>All users are encouraged to consult the release errata
99 before installing &os;. The errata document is updated with
100 <quote>late-breaking</quote> information discovered late in the
101 release cycle or after the release. Typically, it contains
102 information on known bugs, security advisories, and corrections
103 to documentation. An up-to-date copy of the errata for &os;
104 &release.current; can be found on the &os; Web site.</para>
108 <title>What's New</title>
110 <para>This section describes the most user-visible new or changed
111 features in &os; since &release.prev;.</para>
113 <para>Typical release note items document recent security
114 advisories issued after &release.prev;, new drivers or hardware
115 support, new commands or options, major bug fixes, or
116 contributed software upgrades. They may also list changes to
117 major ports/packages or release engineering practices. Clearly
118 the release notes cannot list every single change made to &os;
119 between releases; this document focuses primarily on security
120 advisories, user-visible changes, and major architectural
123 <sect2 xml:id="security">
124 <title>Security Advisories</title>
130 <sect2 xml:id="kernel">
131 <title>Kernel Changes</title>
133 <para revision="260338">The
134 <literal>vfs.zfs.zio.use_uma</literal> &man.sysctl.8; has been
135 re-enabled. On multi-CPU machines with enough RAM, this can
136 easily double &man.zfs.8; performance or reduce CPU usage in
137 half. It was originally disabled due to memory and
138 <acronym>KVA</acronym> exhaustion problem reports, which
139 should be resolved due to several change in the VM
142 <para revision="260385" contrib="sponsor" sponsor="&ix;">The
143 &man.geom.4; RAID driver has been
144 updated to support unmapped I/O.</para>
146 <para revision="260431">A new &man.sysctl.8;,
147 <literal>kern.panic_reboot_wait_time</literal>, has been
148 added, which allows controlling how long the system will wait
149 after &man.panic.9; before rebooting.</para>
151 <para revision="260857">The &man.virtio_blk.4; driver has been
152 updated to support unmapped I/O.</para>
154 <para revision="260858">The &man.virtio_scsi.4; driver has been
155 updated to support unmapped I/O.</para>
157 <para revision="262861">The &man.vt.4; driver has been merged
158 from &os;-CURRENT. To enable &man.vt.4;, enter
159 <literal>set kern.vty=vt</literal> at the &man.loader.8;
160 prompt during boot, or add <literal>kern.vty=vt</literal> to
161 &man.loader.conf.5; and reboot the system.</para>
163 <para revision="262967">Support for MegaRAID Fury cards has been
164 added to the &man.mfi.4; driver.</para>
166 <para revision="263024">The &man.aacraid.4; driver has been
167 updated to version 3.2.5.</para>
169 <para revision="263122">Support for &man.hwpmc.4; has been added
170 for &powerpc; 970 class processors.</para>
172 <para revision="263197">Support for ADT7460 and ADT7467 fan
173 controllers found in newer PowerBooks™ and
174 iBooks™ has been added to the &man.iicbus.4;
177 <para revision="263256">A panic triggered by removing
178 a &man.urtwn.4; device has been fixed.</para>
180 <para revision="263799">A potential deadlock in the &man.usb.4;
181 stack triggered by detaching USB devices that create character
182 devices has been fixed.</para>
184 <para revision="263869">Support for &amd; Family 16h sensor
185 devices has been added to &man.amdtemp.4;.</para>
187 <para revision="264522">Support for LUN-based CD changers has
188 been removed from the &man.cd.4; driver.</para>
190 <para revision="264734">Support for 9th generation HP host bus
191 adapter cards has been added to &man.ciss.4;.</para>
193 <para revision="265388" contrib="sponsor" sponsor="&lsi;">The
194 &man.mpr.4; device has been added,
195 providing support for LSI Fusion-MPT 3 12Gb SCSI/SATA
198 <para revision="265536">The <literal>GEOM_VINUM</literal> option
199 is now able to be built both directly into the kernel or as
200 a &man.kldload.8; loadable module.</para>
202 <para revision="265610">The &man.uslcom.4; driver has been
203 updated to support 26 new devices.</para>
205 <para revision="265922" contrib="sponsor" sponsor="&lsi;">The
206 &man.mrsas.4; driver has been added,
207 providing support for LSI MegaRAID SAS controllers. The
208 &man.mfi.4; driver will attach to the controller, by default.
209 To enable &man.mrsas.4; add
210 <literal>hw.mfi.mrsas_enable=1</literal> to
211 <filename>/boot/loader.conf</filename>, which turns off
212 &man.mfi.4; device probing.</para>
215 <para>At this time, the &man.mfiutil.8; utility and
217 <application>MegaCLI</application> and
218 <application>StorCli</application> do not work with
219 &man.mrsas.4;.</para>
222 <para revision="266165">A kernel bug that inhibited proper
223 functionality of the <literal>dev.cpu.0.freq</literal>
224 &man.sysctl.8; on &intel; processors with Turbo
225 Boost™ enabled has been fixed.</para>
227 <para revision="266220">The &man.geom.uncompress.4; module is
228 built by default which, similar to &man.geom.uzip.4;,
229 provides support for compressed, read-only disk
232 <para revision="266436">The &man.uart.4; driver has been
233 updated to include support for the &intel; Lynx Point
234 KT <acronym>AMT</acronym> serial port.</para>
236 <para revision="266718">A bug that would prevent
237 a &man.jail.8; from setting the correct IPv4 source address
238 with some operations that required
239 <literal>security.jail.allow_raw_sockets</literal> has been
242 <para revision="266911">The &man.hwpmc.4; driver has been
243 updated to support core events from the Atom™
244 Silvermont architecture.</para>
246 <para revision="267084">The &man.mfi.4; driver has been
247 updated to include support for unmapped I/O.</para>
249 <para revision="267457">The &man.hpt27xx.4; driver has been
250 updated with various vendor-supplied bug fixes.</para>
252 <para revision="268046">The &man.oce.4; driver has been updated
253 with vendor-supplied fixes for big endian support, and 20GB/s
254 and 25GB/s link speeds.</para>
256 <sect3 xml:id="kernel-virtualization">
257 <title>Virtualization Support</title>
259 <para revision="259450">Support for µsoft; Hyper-V
260 has been added to &os;/i386 as loadable modules, however
261 not available in the <filename>GENERIC</filename> kernel
262 configuration.</para>
264 <para revision="261090">The &man.bhyve.4; hypervisor now
265 supports soft power-off functionality via the ACPI S5
268 <para revision="267399">Support for &os;/i386 guests has been
269 added to &man.bhyve.4;.</para>
271 <para revision="267427">Support for virtualized
272 <literal>XSAVE</literal> has been added to &man.bhyve.4;,
273 allowing guest operating systems to use
274 <literal>XSAVE</literal> and
275 <literal>XSAVE</literal>-enabled features, such as
276 <acronym>AVX</acronym>.</para>
279 <sect3 xml:id="kernel-arm">
280 <title>ARM Support</title>
282 <para revision="259355">The <filename>WANDBOARD</filename>
283 kernel configuration file has been added.</para>
285 <para revision="265067">Boot devices may now be specified by
286 setting a u-boot environment variable. If a boot device is
287 not specified, the probe mechanism will be used. To specify
288 the boot device, set the
289 <literal>loaderdev=<replaceable>device</replaceable></literal>
290 u-boot environment variable.</para>
292 <para revision="266000">The <literal>nexus(4)</literal> driver
293 has been updated to include <quote>Flattened Device
294 Tree</quote> support, replacing the &man.fdtbus.4; driver
295 in most cases.</para>
297 <para revision="266105">The &man.gpioiic.4; and
298 &man.gpioled.4; have been merged from &os;-CURRENT.</para>
300 <para revision="266379">The <literal>ZEDBOARD</literal> kernel
301 configuration file has been updated to include
302 <acronym>SMP</acronym> support.</para>
305 <sect3 xml:id="boot">
306 <title>Boot Loader Changes</title>
308 <para revision="262701">A kernel selection menu has been added
309 to &man.loader.8;. If the <quote>beastie menu</quote> is
310 enabled, the kernel to boot may be selected from the kernel
311 selection menu. Additional kernels may be listed in
312 &man.loader.conf.5; as a comma- or space-separated list. By
313 default, <literal>kernel</literal> and
314 <literal>kernel.old</literal> are listed.</para>
317 <sect3 xml:id="proc">
318 <title>Hardware Support</title>
323 <title>Multimedia Support</title>
329 <sect4 xml:id="net-if">
330 <title>Network Interface Support</title>
332 <para revision="259453">Support for Ralink RT5370 and
333 RT5372 chipsets has been added to the &man.run.4;
336 <para revision="260120">Firmware for the &man.run.4; driver
337 has been updated to version 0.33.</para>
339 <para revision="261868">Support for the Ralink RT3593
340 chipset has been added to the &man.run.4; driver.</para>
342 <para revision="261972">The &man.nve.4; driver is now
343 deprecated, and the &man.nfe.4; driver should be used
346 <para revision="262137">Support for the &man.axge.4; driver
347 has been added. This driver supports the ASIX AX88178A
348 and AX88179 USB ethernet adapters. The AX88178A supports
349 USB 2.0, and the AX88179 supports USB 2.0 and 3.0.</para>
351 <para revision="262363">The &man.urndis.4; driver has been
352 imported from OpenBSD.</para>
354 <para revision="264866">Support for multiple
355 transmitter/receiver queues has been added to the
356 &man.vmx.4; driver.</para>
359 <para>The &os; guest operating system must have
360 <acronym>MSIX</acronym> enabled as a prerequisite for
361 multiple queues.</para>
364 <para revision="265345">Support for the ASUS USB-N10 Nano
365 wireless card has been added to the &man.urtwn.4;
368 <para revision="266212">Transmission checksum offloading has
369 been disabled for the RTL8168C and RTL8168CP chipsets in
370 the &man.re.4; driver for TCP and UDP frames. This is
371 due to a report of UDP datagrams with IP options
372 generating corrupt frames.</para>
374 <para revision="266578">Preliminary support has been added
375 to the &man.urtwn.4; driver for the Realtek RTL8188EUS and
376 RTL8188ETV chipsets.</para>
378 <para revision="267694">A bug in the fast receiver buffer
379 recycle path has been fixed in the &man.cxgbe.4;
382 <para revision="267849" contrib="vendor"
383 vendor="&chelsio;">The bundled &man.cxgbe.4; firmware for
384 T4 and T5 cards has been updated to version
389 <sect3 xml:id="net-proto">
390 <title>Network Protocols</title>
392 <para revision="265946">Support for the UDP-Lite protocol
393 (RFC 3828) has been added to the IPv4 and IPv6
396 <para revision="267771">A bug in &man.sctp.4; that would allow
397 two listening sockets bound to the same port has been
401 <sect3 xml:id="disks">
402 <title>Disks and Storage</title>
404 <para revision="259328" contrib="sponsor" sponsor="&ff;">The
405 &man.geom.8; <literal>label</literal> class is now aware of
406 resized partitions. This corrects an issue where
407 <command>geom resize</command> would resize the partition,
408 but the label provider in <filename
409 class="directory">/dev/gptid/</filename> would not be
412 <para revision="260502">The &man.gmirror.8;
413 utility now has a <literal>resize</literal> command, making
414 it easier to resize the size of a mirror when all of its
415 components have been replaced.</para>
417 <para revision="265912">The &man.geom.8;
418 <literal>GEOM_PART</literal> class has been updated to
419 support automatic partition resizing. Changes to the
420 partition size are not saved to disk until
421 <command>gpart commit</command> is run, and prior to saving,
422 can be reverted with <command>gpart undo</command>.</para>
424 <para revision="268091">Support for the
425 <literal>disklabel64</literal> partitioning scheme has been
426 added to &man.gpart.8;.</para>
428 <para revision="266594">The <literal>radeonkms(4)</literal>
429 driver has been updated to include 32-bit &man.ioctl.2;
430 support, allowing 32-bit applications to run on a 64-bit
435 <title>File Systems</title>
437 <para revision="260178" contrib="vendor"
438 vendor="&netflix;">A new flag, <literal>-R</literal>,
439 has been added to the &man.fsck.ffs.8; utility. When used,
440 &man.fsck.ffs.8; will restart itself when too many critical
441 errors have been detected.</para>
443 <para revision="263407">The &man.zfs.8; filesystem has been
444 updated to implement <quote>bookmarks</quote>. See
445 &man.zfs.8; for further details.</para>
447 <para revision="266122">The &man.zfs.8; filesystem has been
448 updated to allow tuning the minimum <quote>ashift</quote>
449 value when creating new top-level virtual devices (vdevs).
450 To set the minimum ashift value, for example when creating
451 a &man.zpool.8; on <quote>Advanced Format</quote> drives,
452 set the <literal>vfs.zfs.min_auto_ashift</literal>
453 &man.sysctl.8; accordingly.</para>
455 <para revision="266612">The <literal>libzfs</literal> thread
456 pool <acronym>API</acronym> has been imported from
457 OpenSolaris, and adapted for &os;. This change allows
458 parallel disk scanning, which can reduce &man.zpool.8;
459 overall import time in some workloads.</para>
463 <sect2 xml:id="userland">
464 <title>Userland Changes</title>
466 <para revision="260177" contrib="sponsor"
467 sponsor="&netflix;">A new flag is added to &man.camcontrol.8;,
468 <literal>-b</literal>, which outputs the existing buses and
469 their parents.</para>
471 <para revision="262075">The &man.newsyslog.8; utility has been
472 updated to rotate files based on the actual file size instead
473 of the blocks on disk. This matches the behavior documented
474 in &man.newsyslog.conf.5;.</para>
476 <para revision="262384">The location of the &man.rctl.8;
477 configuration file can now be overridden in &man.rc.conf.5;.
478 To use a non-default location, set
479 <literal>rctl_rules</literal> in &man.rc.conf.5; to the
480 location of the file.</para>
482 <para revision="262855">The <application>ATF</application> test
483 suite has been updated to version 0.20.</para>
485 <para revision="263019">The <literal>libucl</literal> library
486 (Unified Configuration Library) has been merged from
489 <para revision="263020">The &man.pkg.7; bootstrapping utility
490 has been synced with the version in &os;-CURRENT.</para>
492 <para revision="263403">The &man.zfs.8; userland utility has
493 been updated to include aliases for
494 <command>snapshot</command>, which allows use of <command>zfs
495 list -t snap</command> and <command>zfs
496 snap</command>.</para>
498 <para revision="263405">The &man.zfs.8; userland utility has
499 been updated to include a new flag to <command>zfs
500 list</command>, <literal>-p</literal>, which when specified,
501 prints the output in a parsable format.</para>
503 <para revision="263783">The Blowfish password format
504 implementation updated. Support for $2b$ has
505 been added, allowing use of passwords greater than 256
506 characters long.</para>
508 <para revision="264497">The &man.iconv.3; library has been
509 updated to match NetBSD, providing several bug fixes.</para>
511 <para revision="265265">The &man.date.1; utility has been
512 updated to include a new flag, <literal>-R</literal>, which
513 prints the date and time output as specified in RFC
516 <para revision="265533">The &man.bc.1; utility has been updated
517 to version 1.1, in sync with the version in OpenBSD.</para>
519 <para revision="265604" contrib="vendor"
520 vendor="&netflix;">The &man.pmcstat.8; utility has been
521 updated to include a new flag, <literal>-a</literal>, which
522 when specified, produces a full stack track on the sampled
525 <para revision="265701">The &man.netstat.8; and &man.route.8;
526 utilities have been updated to include a shorthand equivalent
527 to the <literal>-f inet</literal> and <literal>-f
528 inet6</literal> address specifiers, <literal>-4</literal>
529 and <literal>-6</literal>, respectively.</para>
531 <para revision="265879">The &man.crypt.3; library now defaults
532 to SHA512 for password hashing.</para>
534 <para revision="266014">The &man.gvinum.8; utility has been
535 updated to allow forceful configuration reset with the
536 <literal>-f</literal> flag. Additionally, a bug that would
537 prevent <literal>-f</literal> from properly creating
538 a &man.gvinum.8; configuration has been fixed.</para>
540 <para revision="266029">The &man.login.conf.5; file now takes
541 precedence over the shell-specific environment files. In
542 particular, the <literal>PATH</literal>,
543 <literal>BLOCKSIZE</literal> variables are commented from
544 <filename>/usr/share/skel/dot.profile</filename>, and the
545 <literal>path</literal>, <literal>BLOCKSIZE</literal>, and
546 <literal>umask</literal> variables have been commented from
547 <filename>/usr/share/skel/dot.cshrc</filename>.</para>
549 <para revision="266272">The &man.binmiscctl.8; userland utility
550 and related image activator features have been merged from
553 <para revision="266279">The &man.ps.1; utility has been
554 updated to include the <literal>-J</literal> flag, used to
555 filter output by matching &man.jail.8; IDs and names.
556 Additionally, argument <literal>0</literal> can be used to
557 <literal>-J</literal> to only list processes running on the
560 <para revision="266280">The &man.top.1; utility has been updated
561 to filter by &man.jail.8; ID or name, in followup to the
562 &man.ps.1; change in <literal>r265229</literal>.</para>
564 <para revision="266610">The &man.gstat.8; utility has been
565 updated to include a new flag, <literal>-o</literal>. When
566 set, &man.gstat.8; will display statistics for operations
567 such as <literal>BIO_FLUSH</literal>.</para>
569 <para revision="266632">The &man.fetch.3; library has been
570 updated to look for root <acronym>SSL</acronym> certificates
571 in <filename class="directory">/usr/local/etc/ssl/</filename>
573 class="directory">/etc/ssl/</filename>.</para>
575 <para revision="266715">The &man.clang.1;/llvm suite has been
576 updated to version 3.4.1.</para>
578 <para revision="266816">The Blowfish password format
579 has been changed to $2b$ by default.</para>
581 <para revision="266888">The amount of data collected for
582 &man.hwpmc.4; has been updated to work with modern processors
583 and larger amounts of available memory.</para>
585 <para revision="266890">The &man.pmcstat.8; utility has been
586 updated to include a new flag, <literal>-l</literal>, which
587 ends event collection after the specified number of
590 <para revision="266953">The &man.mergemaster.8; utility has
591 been updated to avoid printing
592 <quote><filename>/var/tmp/temproot</filename>
593 disappeared</quote> if there is nothing to compare.</para>
595 <para revision="267056">The &os; installer, &man.bsdinstall.8;,
596 has been updated to include optional
597 &man.geli.8;-encrypted or &man.gmirror.8;-mirrored swap
598 devices when installing onto a full &man.zfs.8; filesystem.
599 Additionally, the parent &man.zfs.8; dataset is now configured
600 with <literal>lz4</literal> compression enabled.</para>
602 <para revision="267113">The default &man.newsyslog.conf.5; now
603 includes files in the
604 <filename>/etc/newsyslog.conf.d/</filename> and
605 <filename>/usr/local/etc/newsyslog.conf.d/</filename>
606 directories by default for &man.newsyslog.8;.</para>
608 <para revision="267161">The &man.realpath.1; utility has been
609 updated to return <literal>ENOTDIR</literal> on paths
610 components <quote>.</quote> and <quote>..</quote> that are
611 not directories, such as <filename
612 class="directory">/dev/null/.</filename> or <filename
613 class="directory">/dev/null/..</filename>.</para>
615 <para revision="267236">A new flag, <quote>onifconsole</quote>
616 has been added to <filename>/etc/ttys</filename>. This allows
617 the system to provide a login prompt via serial console if the
618 device is an active kernel console, otherwise it is equivalent
619 to <literal>off</literal>.</para>
621 <para revision="267341">Support for legacy
622 <acronym>PCI</acronym> devices has been removed from
623 &man.bhyve.8;.</para>
625 <para revision="267450">The &man.bhyve.8; userland utility
626 has been updated to include SMBIOS support. A new flag has
627 been added, <literal>-U</literal>, which allows specifying the
628 UUID of the guest in the System Information structure.</para>
630 <para revision="267734">The &os; Project has migrated
631 from the <application>GNATS</application> bug tracking system
632 to <application>Bugzilla</application>. The &man.send-pr.1;
633 utility used for submitting problem reports has been replaced
634 with a stub shell script that instructs to use the Bugzilla
635 web interface.</para>
637 <para revision="267747">The &man.patch.1; utility has been
638 updated to include a <literal>--dry-run</literal> flag, which
639 is equivalent to <literal>--check</literal> and
640 <literal>-C</literal>.</para>
642 <para revision="267878">A bug in &man.bsdgrep.1; that would
643 prevent patterns from being matched under certain conditions
644 has been fixed.</para>
646 <para revision="267979">The &man.procstat.1; utility has been
647 updated to include two new flags, <literal>-r</literal> and
648 <literal>-H</literal>. When <literal>-r</literal> is
649 specified, &man.procstat.1; will print current resource usage
650 about the process(es). When <literal>-H</literal> is
651 specified, &man.procstat.1; will print information about
652 threads rather than the process(es).</para>
655 <para>The <literal>-H</literal> flag is currently only used
656 with <literal>-r</literal> to display resource usage for
657 individual threads, rather than the entire process.</para>
660 <para revision="268019">The &man.sed.1; utility has been
661 updated to include a new flag, <literal>-u</literal>, which
662 enables unbuffered output when specified.</para>
664 <para revision="268161">The &man.mkimg.1; utility has been
665 merged from &os;-CURRENT.</para>
667 <sect3 xml:id="rc-scripts">
668 <title><filename>/etc/rc.d</filename> Scripts</title>
670 <para revision="264438">The <filename>network.subr</filename>
671 &man.rc.8; script has been updated to loosen the requirement
672 of listing network aliases in numeric order. Previously,
674 <literal>_alias<replaceable>2</replaceable></literal>
675 would not be created if
676 <literal>_alias<replaceable>1</replaceable></literal> was
679 <para revision="268098">The &man.service.8; utility has been
680 updated to check that the &man.rc.d.8; directory exists
681 before traversing the directory.</para>
685 <sect2 xml:id="contrib">
686 <title>Contributed Software</title>
688 <para revision="263285">The &man.xz.1; utility has been updated
689 to a post-5.0.5 snapshot.</para>
691 <para revision="263369" contrib="sponsor"
692 sponsor="&darpa_afrl;">The &man.lldb.1; debugging library has
693 been updated to the r196322 snapshot.</para>
695 <para revision="264377"><application>OpenSSH</application> has
696 been updated to version 6.6p1.</para>
698 <para revision="264911">The &man.nc.1; utility has been updated
699 to match the version in OpenBSD 5.5.</para>
701 <para revision="266692"><application>Sendmail</application>
702 has been updated to 8.14.9.</para>
704 <para revision="267258"><application>OpenSSL</application> has
705 been updated to version 1.0.1h.</para>
707 <para revision="267477">The timezone database has been updated
708 to version tzdata2014e.</para>
711 <sect2 xml:id="ports">
712 <title>Ports/Packages Collection Infrastructure</title>
718 <sect2 xml:id="releng">
719 <title>Release Engineering and Integration</title>
721 <para revision="263028">The &man.services.mkdb.8; utility has
722 been updated to include endianness awareness, allowing the
723 <filename>services.db</filename> database to be created as
724 part of the release build, regardless of native- or
725 cross-built releases.</para>
729 <title>Documentation</title>
736 <sect1 xml:id="upgrade">
737 <title>Upgrading from Previous Releases of &os;</title>
739 <para arch="amd64,i386">Binary upgrades between RELEASE versions
740 (and snapshots of the various security branches) are supported
741 using the &man.freebsd-update.8; utility. The binary upgrade
742 procedure will update unmodified userland utilities, as well as
743 unmodified GENERIC or SMP kernels distributed as a part of an
744 official &os; release. The &man.freebsd-update.8; utility
745 requires that the host being upgraded have Internet
748 <para>Source-based upgrades (those based on recompiling the &os;
749 base system from source code) from previous versions are
750 supported, according to the instructions in
751 <filename>/usr/src/UPDATING</filename>.</para>
754 <para>Upgrading &os; should only be attempted after
755 backing up <emphasis>all</emphasis> data and configuration