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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
192 <sect2 xml:id="userland-contrib">
193 <title>Contributed Software</title>
195 <para revision="286082">The &man.libarchive.3; library has been
196 updated to properly skip a sparse file entry in a &man.tar.1;
197 file, which would previously produce errors.</para>
200 <sect2 xml:id="userland-installer">
201 <title>Installation and Configuration Tools</title>
206 <sect2 xml:id="userland-rc">
207 <title><filename class="directory">/etc/rc.d</filename>
213 <sect2 xml:id="userland-periodic">
214 <title><filename class="directory">/etc/periodic</filename>
220 <sect2 xml:id="userland-libraries">
221 <title>Runtime Libraries and API</title>
226 <sect2 xml:id="userland-abi">
227 <title>ABI Compatibility</title>
233 <sect1 xml:id="kernel">
234 <title>Kernel</title>
236 <para>This section covers changes to kernel configurations, system
237 tuning, and system control parameters that are not otherwise
240 <sect2 xml:id="kernel-bugfix">
241 <title>Kernel Bug Fixes</title>
243 <para revision="288167" contrib="sponsor"
244 sponsor="&multiplay;">The &man.kqueue.2; system call has been
245 updated to handle write events to files larger than 2
249 <sect2 xml:id="kernel-config">
250 <title>Kernel Configuration</title>
255 <sect2 xml:id="kernel-sysctl">
256 <title>System Tuning and Controls</title>
258 <para revision="287037">The &man.uart.4; driver has been
259 updated to allow tuning packets per second captured during
264 <sect1 xml:id="drivers">
265 <title>Devices and Drivers</title>
267 <para>This section covers changes and additions to devices and
268 device drivers since &release.prev;.</para>
270 <sect2 xml:id="drivers-device">
271 <title>Device Drivers</title>
276 <sect2 xml:id="drivers-storage">
277 <title>Storage Drivers</title>
279 <para revision="288732" contrib="sponsor" sponsor="&ix;">The
280 <acronym>CTL</acronym> High Availability implementation has
281 been rewritten.</para>
283 <para revision="288810">The &man.ctl.4; driver has been updated
284 to support CD-ROM and removable devices.</para>
287 <sect2 xml:id="drivers-network">
288 <title>Network Drivers</title>
294 <sect1 xml:id="hardware">
295 <title>Hardware Support</title>
297 <para>This section covers general hardware support for physical
298 machines, hypervisors, and virtualization environments, as well
299 as hardware changes and updates that do not otherwise fit in
300 other sections of this document.</para>
302 <sect2 xml:id="hardware-support">
303 <title>Hardware Support</title>
308 <sect2 xml:id="hardware-virtualization">
309 <title>Virtualization Support</title>
311 <para revision="287802">The &man.xen.4; driver has been updated
312 to include support for <literal>blkif</literal> indirect
316 <sect2 xml:id="hardware-arm">
317 <title>ARM Support</title>
323 <sect1 xml:id="storage">
324 <title>Storage</title>
326 <para>This section covers changes and additions to file systems
327 and other storage subsystems, both local and networked.</para>
329 <sect2 xml:id="storage-general">
330 <title>General Storage</title>
335 <sect2 xml:id="storage-net">
336 <title>Networked Storage</title>
341 <sect2 xml:id="storage-zfs">
344 <para revision="287665" contrib="sponsor"
345 sponsor="&clusterhq;">The &man.zfs.8; <literal>l2arc</literal>
346 code has been updated to take <literal>ashift</literal> into
347 account when gathering buffers to be written to the
348 <literal>l2arc</literal> device.</para>
351 <sect2 xml:id="storage-geom">
352 <title>&man.geom.4;</title>
358 <sect1 xml:id="boot">
359 <title>Boot Loader Changes</title>
361 <para>This section covers the boot loader, boot menu, and other
362 boot-related changes.</para>
364 <sect2 xml:id="boot-loader">
365 <title>Boot Loader Changes</title>
370 <sect2 xml:id="boot-menu">
371 <title>Boot Menu Changes</title>
377 <sect1 xml:id="network">
378 <title>Networking</title>
380 <para>This section describes changes that affect networking in
383 <sect2 xml:id="network-protocols">
384 <title>Network Protocols</title>
390 <sect1 xml:id="ports">
391 <title>Ports Collection and Package Infrastructure</title>
393 <para>This section covers changes to the &os; Ports
394 Collection, package infrastructure, and package maintenance and
395 installation tools.</para>
397 <sect2 xml:id="ports-infrastructure">
398 <title>Infrastructure Changes</title>
403 <sect2 xml:id="ports-packages ">
404 <title>Packaging Changes</title>
411 <title>Documentation</title>
413 <para>This section covers changes to the &os; Documentation
414 Project sources and toolchain.</para>
416 <sect2 xml:id="doc-sources">
417 <title>Documentation Source Changes</title>
422 <sect2 xml:id="doc-toolchain">
423 <title>Documentation Toolchain Changes</title>
429 <sect1 xml:id="releng">
430 <title>Release Engineering and Integration</title>
432 <para>This section convers changes that are specific to the
433 &os; Release Engineering processes.</para>
435 <sect2 xml:id="releng-changes">
436 <title>Integration Changes</title>