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4 <!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
6 <!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
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11 <!ENTITY errata SYSTEM "../../share/xml/errata.xml">
13 <article xmlns="http://docbook.org/ns/docbook"
14 xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
17 <title>&os; &release.current; Release Notes</title>
20 <orgname>The &os; Project</orgname>
23 <pubdate>$FreeBSD$</pubdate>
25 <!-- First rev: 285831 -->
26 <!-- Last rev: 284813 -->
30 <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
34 <legalnotice xml:id="trademarks" role="trademarks">
44 <para>The release notes for &os; &release.current; contain
45 a summary of the changes made to the &os; base system on the
46 &release.branch; development line. This document lists
47 applicable security advisories that were issued since the last
48 release, as well as significant changes to the &os; kernel and
49 userland. Some brief remarks on upgrading are also
54 <sect1 xml:id="intro">
55 <title>Introduction</title>
57 <para>This document contains the release notes for &os;
58 &release.current;. It describes recently added, changed, or
59 deleted features of &os;. It also provides some notes on
60 upgrading from previous versions of &os;.</para>
62 <para releasetype="current">The &release.type; distribution to
63 which these release notes apply represents the latest point
64 along the &release.branch; development branch since
65 &release.branch; was created. Information regarding pre-built,
66 binary &release.type; distributions along this branch can be
68 xlink:href="&release.url;">&release.url;</uri>.</para>
70 <para releasetype="snapshot">The &release.type; distribution to
71 which these release notes apply represents a point along the
72 &release.branch; development branch between &release.prev; and
73 the future &release.next;. Information regarding pre-built,
74 binary &release.type; distributions along this branch can be
76 xlink:href="&release.url;">&release.url;</uri>.</para>
78 <para releasetype="release">This distribution of &os;
79 &release.current; is a &release.type; distribution. It can be
80 found at <uri xlink:href="&release.url;">&release.url;</uri> or
81 any of its mirrors. More information on obtaining this (or
82 other) &release.type; distributions of &os; can be found in the
84 xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
85 &os;</quote> appendix</link> to the <link
86 xlink:href="&url.books.handbook;/">&os;
87 Handbook</link>.</para>
89 <para>All users are encouraged to consult the release errata
90 before installing &os;. The errata document is updated with
91 <quote>late-breaking</quote> information discovered late in the
92 release cycle or after the release. Typically, it contains
93 information on known bugs, security advisories, and corrections
94 to documentation. An up-to-date copy of the errata for &os;
95 &release.current; can be found on the &os; Web site.</para>
97 <para>This document describes the most user-visible new or changed
98 features in &os; since &release.prev;.</para>
100 <para>Typical release note items document recent security
101 advisories issued after &release.prev;, new drivers or hardware
102 support, new commands or options, major bug fixes, or
103 contributed software upgrades. They may also list changes to
104 major ports/packages or release engineering practices. Clearly
105 the release notes cannot list every single change made to &os;
106 between releases; this document focuses primarily on security
107 advisories, user-visible changes, and major architectural
111 <sect1 xml:id="upgrade">
112 <title>Upgrading from Previous Releases of &os;</title>
114 <para arch="amd64,i386">Binary upgrades between RELEASE versions
115 (and snapshots of the various security branches) are supported
116 using the &man.freebsd-update.8; utility. The binary upgrade
117 procedure will update unmodified userland utilities, as well as
118 unmodified <filename>GENERIC</filename> kernel distributed as
119 a part of an official &os; release. The &man.freebsd-update.8;
120 utility requires that the host being upgraded have Internet
123 <para>Source-based upgrades (those based on recompiling the &os;
124 base system from source code) from previous versions are
125 supported, according to the instructions in
126 <filename>/usr/src/UPDATING</filename>.</para>
129 <para>Upgrading &os; should only be attempted after
130 backing up <emphasis>all</emphasis> data and configuration
135 <sect1 xml:id="security-errata">
136 <title>Security and Errata</title>
138 <para>This section lists the various Security Advisories and
139 Errata Notices since &release.prev;.</para>
141 <sect2 xml:id="security">
142 <title>Security Advisories</title>
147 <sect2 xml:id="errata">
148 <title>Errata Notices</title>
154 <sect1 xml:id="userland">
155 <title>Userland</title>
157 <para>This section covers changes and additions to userland
158 applications, contributed software, and system utilities.</para>
160 <sect2 xml:id="userland-config">
161 <title>Userland Configuration Changes</title>
166 <sect2 xml:id="userland-programs">
167 <title>Userland Application Changes</title>
169 <para revision="286064">The &man.jail.8; utility has been
170 updated to include a new flag, <literal>-l</literal>, which
171 ensures a clean environment in the target jail when used.
172 Additionally, &man.jail.8; will run a shell within the target
173 jail when run no commands are specified.</para>
175 <para revision="287122">The &man.mkimg.1; utility has been
176 updated to include support for <literal>NTFS</literal>
177 filesystems in both <acronym>MBR</acronym> and
178 <acronym>GPT</acronym> partitioning schemes.</para>
180 <para revision="288202" contrib="sponsor" sponsor="&ff;">The
181 &man.ar.1; utility now enables deterministic mode
182 (<literal>-D</literal>) by default. This behavior can be
183 disabled by specifying the <literal>-U</literal> flag.</para>
185 <para revision="287746">The &man.pciconf.8; utility has been
186 updated to use the PCI ID database from the <filename
187 role="package">misc/pciids</filename> package, if present,
188 falling back to the PCI ID database in the &os; base
191 <para revision="288710" contrib="sponsor" sponsor="&gandi;">A
192 new utility, &man.sesutil.8;, has been added, which is used
193 to manage &man.ses.4; devices.</para>
195 <para revision="292231">Support for the
196 <literal>-manage-gids</literal> has been added to
197 &man.nfsd.8;. This option can be enabled at boot time by
198 adding <literal>nfs_server_managegids="YES"</literal> to
199 &man.rc.conf.5;.</para>
201 <para revision="292462" contrib="sponsor"
202 sponsor="&dellinc;">The resolver library has been updated to
203 reload <filename>/etc/resolv.conf</filename> if the
204 modification time has changed.</para>
206 <para revision="293744" contrib="sponsor" sponsor="&ff;">The
207 initial implementation of <quote>reroot</quote> support has
208 been added to the &man.shutdown.8; utility, allowing the root
209 filesystem to be mounted from a temporary source filesystem
210 without requiring a full system reboot.</para>
213 <sect2 xml:id="userland-contrib">
214 <title>Contributed Software</title>
216 <para revision="286082">The &man.libarchive.3; library has been
217 updated to properly skip a sparse file entry in a &man.tar.1;
218 file, which would previously produce errors.</para>
220 <para revision="286751">Timezone data files have been updated to
221 version 2015f.</para>
223 <para revision="292588">The &man.xz.1; utility has been updated
224 to version 5.2.2, which provides support for multi-threaded
227 <para revision="293650">The &man.ntpd.8; utility has been
228 updated to version 4.2.8p5.</para>
230 <para revision="294286">The &man.less.1; utility has been
231 updated to version v481.</para>
233 <para revision="295367">The <application>OpenSSH</application>
234 suite has been updated to version 7.1p2.</para>
236 <para revision="295690">The
237 <literal>unbound-control-setup</literal> script has been
238 removed from the base system.</para>
240 <para revision="295691">The &man.unbound.8; utility has been
241 updated to enable the <literal>insecure-lan-zones</literal>
242 option in preference of listing each <acronym>AS112</acronym>
243 zone individually.</para>
245 <para revision="296317">The <application>OpenSSL</application>
246 suite has been updated to version 1.0.1s.</para>
249 <sect2 xml:id="userland-installer">
250 <title>Installation and Configuration Tools</title>
252 <para revision="295264" contrib="sponsor"
253 sponsor="&scaleengine;">The &man.bsdinstall.8; utility has
254 been updated to support <acronym>ZFS</acronym> installation
255 on <acronym>EFI</acronym>-based systems.</para>
258 <sect2 xml:id="userland-rc">
259 <title><filename class="directory">/etc/rc.d</filename>
262 <para revision="294680">The <literal>netwait</literal>
263 &man.rc.8; script has been updated to wait for network
264 interfaces that attach late in the boot process, such as some
265 <acronym>USB</acronym> network cards.</para>
268 <sect2 xml:id="userland-periodic">
269 <title><filename class="directory">/etc/periodic</filename>
275 <sect2 xml:id="userland-libraries">
276 <title>Runtime Libraries and API</title>
281 <sect2 xml:id="userland-abi">
282 <title>ABI Compatibility</title>
288 <sect1 xml:id="kernel">
289 <title>Kernel</title>
291 <para>This section covers changes to kernel configurations, system
292 tuning, and system control parameters that are not otherwise
295 <sect2 xml:id="kernel-bugfix">
296 <title>Kernel Bug Fixes</title>
298 <para revision="288167" contrib="sponsor"
299 sponsor="&multiplay;">The &man.kqueue.2; system call has been
300 updated to handle write events to files larger than 2
304 <sect2 xml:id="kernel-config">
305 <title>Kernel Configuration</title>
310 <sect2 xml:id="kernel-sysctl">
311 <title>System Tuning and Controls</title>
313 <para revision="287037">The &man.uart.4; driver has been
314 updated to allow tuning pulses per second captured in the
315 CTS line during runtime, whereas previously only the DCD line
316 could be used without rebuilding the kernel.</para>
320 <sect1 xml:id="drivers">
321 <title>Devices and Drivers</title>
323 <para>This section covers changes and additions to devices and
324 device drivers since &release.prev;.</para>
326 <sect2 xml:id="drivers-device">
327 <title>Device Drivers</title>
332 <sect2 xml:id="drivers-storage">
333 <title>Storage Drivers</title>
335 <para revision="288732" contrib="sponsor" sponsor="&ix;">The
336 <acronym>CTL</acronym> High Availability implementation has
337 been rewritten.</para>
339 <para revision="288810">The &man.ctl.4; driver has been updated
340 to support CD-ROM and removable devices.</para>
343 <sect2 xml:id="drivers-network">
344 <title>Network Drivers</title>
346 <para revision="295524" contrib="sponsor"
347 sponsor="&limelight;, &intelcorp;">The &man.ixgbe.4; driver
348 has been updated to version 3.1.13-k.</para>
352 <sect1 xml:id="hardware">
353 <title>Hardware Support</title>
355 <para>This section covers general hardware support for physical
356 machines, hypervisors, and virtualization environments, as well
357 as hardware changes and updates that do not otherwise fit in
358 other sections of this document.</para>
360 <sect2 xml:id="hardware-support">
361 <title>Hardware Support</title>
363 <para revision="293675">The &man.ismt.4; driver has been added,
364 providing support for recent &intel; SMBus 2.0
368 <sect2 xml:id="hardware-virtualization">
369 <title>Virtualization Support</title>
371 <para revision="287802">The &man.xen.4; driver has been updated
372 to include support for <literal>blkif</literal> indirect
376 <sect2 xml:id="hardware-arm">
377 <title>ARM Support</title>
383 <sect1 xml:id="storage">
384 <title>Storage</title>
386 <para>This section covers changes and additions to file systems
387 and other storage subsystems, both local and networked.</para>
389 <sect2 xml:id="storage-general">
390 <title>General Storage</title>
395 <sect2 xml:id="storage-net">
396 <title>Networked Storage</title>
401 <sect2 xml:id="storage-zfs">
404 <para revision="287665" contrib="sponsor"
405 sponsor="&clusterhq;">The &man.zfs.8; <literal>l2arc</literal>
406 code has been updated to take <literal>ashift</literal> into
407 account when gathering buffers to be written to the
408 <literal>l2arc</literal> device.</para>
411 <sect2 xml:id="storage-geom">
412 <title>&man.geom.4;</title>
418 <sect1 xml:id="boot">
419 <title>Boot Loader Changes</title>
421 <para>This section covers the boot loader, boot menu, and other
422 boot-related changes.</para>
424 <sect2 xml:id="boot-loader">
425 <title>Boot Loader Changes</title>
427 <para revision="294445">Initial terminal emulation support has
428 been added to <filename>loader.efi</filename> for
429 <acronym>UEFI</acronym>-based systems.</para>
431 <para revision="294999" contrib="sponsor"
432 sponsor="&multiplay;">Initial <acronym>ZFS</acronym> boot
433 support has been added to the <acronym>EFI</acronym>
434 implementation.</para>
436 <para revision="295475" contrib="sponsor"
437 sponsor="&scaleengine;">The <acronym>UEFI</acronym> loader has
438 been updated to support multiple <acronym>ZFS</acronym> boot
439 environments, such as those provided by <filename
440 role="package">sysutils/beadm</filename>.</para>
443 <sect2 xml:id="boot-menu">
444 <title>Boot Menu Changes</title>
446 <para revision="294446">The <acronym>UEFI</acronym> boot menu
447 has been updated to enable the <quote>Beastie</quote> menu,
448 similiar to the traditional &man.sc.4; boot menu.</para>
452 <sect1 xml:id="network">
453 <title>Networking</title>
455 <para>This section describes changes that affect networking in
458 <sect2 xml:id="network-protocols">
459 <title>Network Protocols</title>
465 <sect1 xml:id="ports">
466 <title>Ports Collection and Package Infrastructure</title>
468 <para>This section covers changes to the &os; Ports
469 Collection, package infrastructure, and package maintenance and
470 installation tools.</para>
472 <sect2 xml:id="ports-infrastructure">
473 <title>Infrastructure Changes</title>
478 <sect2 xml:id="ports-packages ">
479 <title>Packaging Changes</title>
486 <title>Documentation</title>
488 <para>This section covers changes to the &os; Documentation
489 Project sources and toolchain.</para>
491 <sect2 xml:id="doc-sources">
492 <title>Documentation Source Changes</title>
497 <sect2 xml:id="doc-toolchain">
498 <title>Documentation Toolchain Changes</title>
504 <sect1 xml:id="releng">
505 <title>Release Engineering and Integration</title>
507 <para>This section convers changes that are specific to the
508 &os; Release Engineering processes.</para>
510 <sect2 xml:id="releng-changes">
511 <title>Integration Changes</title>