1 <?xml version="1.0" encoding="iso-8859-1"?>
2 <!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN"
3 "../../../share/xml/freebsd50.dtd" [
4 <!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
6 <!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
8 <!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN" "vendor.ent">
10 <!ENTITY security SYSTEM "../../share/xml/security.xml">
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>
196 <sect2 xml:id="userland-contrib">
197 <title>Contributed Software</title>
199 <para revision="286082">The &man.libarchive.3; library has been
200 updated to properly skip a sparse file entry in a &man.tar.1;
201 file, which would previously produce errors.</para>
203 <para revision="286751">Timezone data files have been updated to
204 version 2015f.</para>
206 <para revision="294286">The &man.less.1; utility has been
207 updated to version v481.</para>
209 <para revision="295367">The <application>OpenSSH</application>
210 suite has been updated to version 7.1p2.</para>
212 <para revision="295690">The
213 <literal>unbound-control-setup</literal> script has been
214 removed from the base system.</para>
216 <para revision="295691">The &man.unbound.8; utility has been
217 updated to enable the <literal>insecure-lan-zones</literal>
218 option in preference of listing each <acronym>AS112</acronym>
219 zone individually.</para>
221 <para revision="296317">The <application>OpenSSL</application>
222 suite has been updated to version 1.0.1s.</para>
225 <sect2 xml:id="userland-installer">
226 <title>Installation and Configuration Tools</title>
228 <para revision="295264" contrib="sponsor"
229 sponsor="&scaleengine;">The &man.bsdinstall.8; utility has
230 been updated to support <acronym>ZFS</acronym> installation
231 on <acronym>EFI</acronym>-based systems.</para>
234 <sect2 xml:id="userland-rc">
235 <title><filename class="directory">/etc/rc.d</filename>
238 <para revision="294680">The <literal>netwait</literal>
239 &man.rc.8; script has been updated to wait for network
240 interfaces that attach late in the boot process, such as some
241 <acronym>USB</acronym> network cards.</para>
244 <sect2 xml:id="userland-periodic">
245 <title><filename class="directory">/etc/periodic</filename>
251 <sect2 xml:id="userland-libraries">
252 <title>Runtime Libraries and API</title>
257 <sect2 xml:id="userland-abi">
258 <title>ABI Compatibility</title>
264 <sect1 xml:id="kernel">
265 <title>Kernel</title>
267 <para>This section covers changes to kernel configurations, system
268 tuning, and system control parameters that are not otherwise
271 <sect2 xml:id="kernel-bugfix">
272 <title>Kernel Bug Fixes</title>
274 <para revision="288167" contrib="sponsor"
275 sponsor="&multiplay;">The &man.kqueue.2; system call has been
276 updated to handle write events to files larger than 2
280 <sect2 xml:id="kernel-config">
281 <title>Kernel Configuration</title>
286 <sect2 xml:id="kernel-sysctl">
287 <title>System Tuning and Controls</title>
289 <para revision="287037">The &man.uart.4; driver has been
290 updated to allow tuning pulses per second captured in the
291 CTS line during runtime, whereas previously only the DCD line
292 could be used without rebuilding the kernel.</para>
296 <sect1 xml:id="drivers">
297 <title>Devices and Drivers</title>
299 <para>This section covers changes and additions to devices and
300 device drivers since &release.prev;.</para>
302 <sect2 xml:id="drivers-device">
303 <title>Device Drivers</title>
308 <sect2 xml:id="drivers-storage">
309 <title>Storage Drivers</title>
311 <para revision="288732" contrib="sponsor" sponsor="&ix;">The
312 <acronym>CTL</acronym> High Availability implementation has
313 been rewritten.</para>
315 <para revision="288810">The &man.ctl.4; driver has been updated
316 to support CD-ROM and removable devices.</para>
319 <sect2 xml:id="drivers-network">
320 <title>Network Drivers</title>
322 <para revision="295524" contrib="sponsor"
323 sponsor="&limelight;, &intelcorp;">The &man.ixgbe.4; driver
324 has been updated to version 3.1.13-k.</para>
328 <sect1 xml:id="hardware">
329 <title>Hardware Support</title>
331 <para>This section covers general hardware support for physical
332 machines, hypervisors, and virtualization environments, as well
333 as hardware changes and updates that do not otherwise fit in
334 other sections of this document.</para>
336 <sect2 xml:id="hardware-support">
337 <title>Hardware Support</title>
342 <sect2 xml:id="hardware-virtualization">
343 <title>Virtualization Support</title>
345 <para revision="287802">The &man.xen.4; driver has been updated
346 to include support for <literal>blkif</literal> indirect
350 <sect2 xml:id="hardware-arm">
351 <title>ARM Support</title>
357 <sect1 xml:id="storage">
358 <title>Storage</title>
360 <para>This section covers changes and additions to file systems
361 and other storage subsystems, both local and networked.</para>
363 <sect2 xml:id="storage-general">
364 <title>General Storage</title>
369 <sect2 xml:id="storage-net">
370 <title>Networked Storage</title>
375 <sect2 xml:id="storage-zfs">
378 <para revision="287665" contrib="sponsor"
379 sponsor="&clusterhq;">The &man.zfs.8; <literal>l2arc</literal>
380 code has been updated to take <literal>ashift</literal> into
381 account when gathering buffers to be written to the
382 <literal>l2arc</literal> device.</para>
385 <sect2 xml:id="storage-geom">
386 <title>&man.geom.4;</title>
392 <sect1 xml:id="boot">
393 <title>Boot Loader Changes</title>
395 <para>This section covers the boot loader, boot menu, and other
396 boot-related changes.</para>
398 <sect2 xml:id="boot-loader">
399 <title>Boot Loader Changes</title>
401 <para revision="294445">Initial terminal emulation support has
402 been added to <filename>loader.efi</filename> for
403 <acronym>UEFI</acronym>-based systems.</para>
405 <para revision="294999" contrib="sponsor"
406 sponsor="&multiplay;">Initial <acronym>ZFS</acronym> boot
407 support has been added to the <acronym>EFI</acronym>
408 implementation.</para>
410 <para revision="295475" contrib="sponsor"
411 sponsor="&scaleengine;">The <acronym>UEFI</acronym> loader has
412 been updated to support multiple <acronym>ZFS</acronym> boot
413 environments, such as those provided by <filename
414 role="package">sysutils/beadm</filename>.</para>
417 <sect2 xml:id="boot-menu">
418 <title>Boot Menu Changes</title>
420 <para revision="294446">The <acronym>UEFI</acronym> boot menu
421 has been updated to enable the <quote>Beastie</quote> menu,
422 similiar to the traditional &man.sc.4; boot menu.</para>
426 <sect1 xml:id="network">
427 <title>Networking</title>
429 <para>This section describes changes that affect networking in
432 <sect2 xml:id="network-protocols">
433 <title>Network Protocols</title>
439 <sect1 xml:id="ports">
440 <title>Ports Collection and Package Infrastructure</title>
442 <para>This section covers changes to the &os; Ports
443 Collection, package infrastructure, and package maintenance and
444 installation tools.</para>
446 <sect2 xml:id="ports-infrastructure">
447 <title>Infrastructure Changes</title>
452 <sect2 xml:id="ports-packages ">
453 <title>Packaging Changes</title>
460 <title>Documentation</title>
462 <para>This section covers changes to the &os; Documentation
463 Project sources and toolchain.</para>
465 <sect2 xml:id="doc-sources">
466 <title>Documentation Source Changes</title>
471 <sect2 xml:id="doc-toolchain">
472 <title>Documentation Toolchain Changes</title>
478 <sect1 xml:id="releng">
479 <title>Release Engineering and Integration</title>
481 <para>This section convers changes that are specific to the
482 &os; Release Engineering processes.</para>
484 <sect2 xml:id="releng-changes">
485 <title>Integration Changes</title>