release/doc/en_US.ISO8859-1/relnotes/article.xml

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   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">
   5  %release;
   6 <!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
   7  %sponsor;
   8 <!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN" "vendor.ent">
   9  %vendor;
  10 <!ENTITY security SYSTEM "../../share/xml/security.xml">
  11 <!ENTITY errata SYSTEM "../../share/xml/errata.xml">
  12 ]>
  13 <article xmlns="http://docbook.org/ns/docbook"
  14   xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
  15
  16   <info>
  17     <title>&os; &release.current; Release Notes</title>
  18
  19     <author>
  20       <orgname>The &os; Project</orgname>
  21     </author>
  22
  23     <pubdate>$FreeBSD$</pubdate>
  24
  25     <!-- First rev: 285831 -->
  26     <!-- Last rev: 284813 -->
  27
  28     <copyright>
  29       <year>2015</year>
  30       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  31         Project</holder>
  32     </copyright>
  33
  34     <legalnotice xml:id="trademarks" role="trademarks">
  35       &tm-attrib.freebsd;
  36       &tm-attrib.ibm;
  37       &tm-attrib.ieee;
  38       &tm-attrib.intel;
  39       &tm-attrib.sparc;
  40       &tm-attrib.general;
  41     </legalnotice>
  42
  43     <abstract>
  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
  50         presented.</para>
  51     </abstract>
  52   </info>
  53
  54   <sect1 xml:id="intro">
  55     <title>Introduction</title>
  56
  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>
  61
  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
  67       found at <uri
  68         xlink:href="&release.url;">&release.url;</uri>.</para>
  69
  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
  75       found at <uri
  76         xlink:href="&release.url;">&release.url;</uri>.</para>
  77
  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
  83       <link
  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>
  88
  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>
  96
  97     <para>This document describes the most user-visible new or changed
  98       features in &os; since &release.prev;.</para>
  99
 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
 108       improvements.</para>
 109   </sect1>
 110
 111   <sect1 xml:id="upgrade">
 112     <title>Upgrading from Previous Releases of &os;</title>
 113
 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
 121       connectivity.</para>
 122
 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>
 127
 128     <important>
 129       <para>Upgrading &os; should only be attempted after
 130         backing up <emphasis>all</emphasis> data and configuration
 131         files.</para>
 132     </important>
 133   </sect1>
 134
 135   <sect1 xml:id="security-errata">
 136     <title>Security and Errata</title>
 137
 138     <para>This section lists the various Security Advisories and
 139       Errata Notices since &release.prev;.</para>
 140
 141     <sect2 xml:id="security">
 142       <title>Security Advisories</title>
 143
 144       &security;
 145     </sect2>
 146
 147     <sect2 xml:id="errata">
 148       <title>Errata Notices</title>
 149
 150       &errata;
 151     </sect2>
 152   </sect1>
 153
 154   <sect1 xml:id="userland">
 155     <title>Userland</title>
 156
 157     <para>This section covers changes and additions to userland
 158       applications, contributed software, and system utilities.</para>
 159
 160     <sect2 xml:id="userland-config">
 161       <title>Userland Configuration Changes</title>
 162
 163       <para>&nbsp;</para>
 164     </sect2>
 165
 166     <sect2 xml:id="userland-programs">
 167       <title>Userland Application Changes</title>
 168
 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>
 174
 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>
 179
 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>
 184
 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
 189         system.</para>
 190
 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>
 194     </sect2>
 195
 196     <sect2 xml:id="userland-contrib">
 197       <title>Contributed Software</title>
 198
 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>
 202
 203       <para revision="286751">Timezone data files have been updated to
 204         version 2015f.</para>
 205     </sect2>
 206
 207     <sect2 xml:id="userland-installer">
 208       <title>Installation and Configuration Tools</title>
 209
 210       <para>&nbsp;</para>
 211     </sect2>
 212
 213     <sect2 xml:id="userland-rc">
 214       <title><filename class="directory">/etc/rc.d</filename>
 215         Scripts</title>
 216
 217       <para>&nbsp;</para>
 218     </sect2>
 219
 220     <sect2 xml:id="userland-periodic">
 221       <title><filename class="directory">/etc/periodic</filename>
 222         Scripts</title>
 223
 224       <para>&nbsp;</para>
 225     </sect2>
 226
 227     <sect2 xml:id="userland-libraries">
 228       <title>Runtime Libraries and API</title>
 229
 230       <para>&nbsp;</para>
 231     </sect2>
 232
 233     <sect2 xml:id="userland-abi">
 234       <title>ABI Compatibility</title>
 235
 236       <para>&nbsp;</para>
 237     </sect2>
 238   </sect1>
 239
 240   <sect1 xml:id="kernel">
 241     <title>Kernel</title>
 242
 243     <para>This section covers changes to kernel configurations, system
 244       tuning, and system control parameters that are not otherwise
 245       categorized.</para>
 246
 247     <sect2 xml:id="kernel-bugfix">
 248       <title>Kernel Bug Fixes</title>
 249
 250       <para revision="288167" contrib="sponsor"
 251         sponsor="&multiplay;">The &man.kqueue.2; system call has been
 252         updated to handle write events to files larger than 2
 253         gigabytes.</para>
 254     </sect2>
 255
 256     <sect2 xml:id="kernel-config">
 257       <title>Kernel Configuration</title>
 258
 259       <para>&nbsp;</para>
 260     </sect2>
 261
 262     <sect2 xml:id="kernel-sysctl">
 263       <title>System Tuning and Controls</title>
 264
 265       <para revision="287037">The &man.uart.4; driver has been
 266         updated to allow tuning packets per second captured during
 267         runtime.</para>
 268     </sect2>
 269   </sect1>
 270
 271   <sect1 xml:id="drivers">
 272     <title>Devices and Drivers</title>
 273
 274     <para>This section covers changes and additions to devices and
 275       device drivers since &release.prev;.</para>
 276
 277     <sect2 xml:id="drivers-device">
 278       <title>Device Drivers</title>
 279
 280       <para>&nbsp;</para>
 281     </sect2>
 282
 283     <sect2 xml:id="drivers-storage">
 284       <title>Storage Drivers</title>
 285
 286       <para revision="288732" contrib="sponsor" sponsor="&ix;">The
 287         <acronym>CTL</acronym> High Availability implementation has
 288         been rewritten.</para>
 289
 290       <para revision="288810">The &man.ctl.4; driver has been updated
 291         to support CD-ROM and removable devices.</para>
 292     </sect2>
 293
 294     <sect2 xml:id="drivers-network">
 295       <title>Network Drivers</title>
 296
 297       <para>&nbsp;</para>
 298     </sect2>
 299   </sect1>
 300
 301   <sect1 xml:id="hardware">
 302     <title>Hardware Support</title>
 303
 304     <para>This section covers general hardware support for physical
 305       machines, hypervisors, and virtualization environments, as well
 306       as hardware changes and updates that do not otherwise fit in
 307       other sections of this document.</para>
 308
 309     <sect2 xml:id="hardware-support">
 310       <title>Hardware Support</title>
 311
 312       <para>&nbsp;</para>
 313     </sect2>
 314
 315     <sect2 xml:id="hardware-virtualization">
 316       <title>Virtualization Support</title>
 317
 318       <para revision="287802">The &man.xen.4; driver has been updated
 319         to include support for <literal>blkif</literal> indirect
 320         segment I/O.</para>
 321     </sect2>
 322
 323     <sect2 xml:id="hardware-arm">
 324       <title>ARM Support</title>
 325
 326       <para>&nbsp;</para>
 327     </sect2>
 328   </sect1>
 329
 330   <sect1 xml:id="storage">
 331     <title>Storage</title>
 332
 333     <para>This section covers changes and additions to file systems
 334       and other storage subsystems, both local and networked.</para>
 335
 336     <sect2 xml:id="storage-general">
 337       <title>General Storage</title>
 338
 339       <para>&nbsp;</para>
 340     </sect2>
 341
 342     <sect2 xml:id="storage-net">
 343       <title>Networked Storage</title>
 344
 345       <para>&nbsp;</para>
 346     </sect2>
 347
 348     <sect2 xml:id="storage-zfs">
 349       <title>ZFS</title>
 350
 351       <para revision="287665" contrib="sponsor"
 352         sponsor="&clusterhq;">The &man.zfs.8; <literal>l2arc</literal>
 353         code has been updated to take <literal>ashift</literal> into
 354         account when gathering buffers to be written to the
 355         <literal>l2arc</literal> device.</para>
 356     </sect2>
 357
 358     <sect2 xml:id="storage-geom">
 359       <title>&man.geom.4;</title>
 360
 361       <para>&nbsp;</para>
 362     </sect2>
 363   </sect1>
 364
 365   <sect1 xml:id="boot">
 366     <title>Boot Loader Changes</title>
 367
 368     <para>This section covers the boot loader, boot menu, and other
 369       boot-related changes.</para>
 370
 371     <sect2 xml:id="boot-loader">
 372       <title>Boot Loader Changes</title>
 373
 374       <para>&nbsp;</para>
 375     </sect2>
 376
 377     <sect2 xml:id="boot-menu">
 378       <title>Boot Menu Changes</title>
 379
 380       <para>&nbsp;</para>
 381     </sect2>
 382   </sect1>
 383
 384   <sect1 xml:id="network">
 385     <title>Networking</title>
 386
 387     <para>This section describes changes that affect networking in
 388       &os;.</para>
 389
 390     <sect2 xml:id="network-protocols">
 391       <title>Network Protocols</title>
 392
 393       <para>&nbsp;</para>
 394     </sect2>
 395   </sect1>
 396
 397   <sect1 xml:id="ports">
 398     <title>Ports Collection and Package Infrastructure</title>
 399
 400     <para>This section covers changes to the &os;&nbsp;Ports
 401       Collection, package infrastructure, and package maintenance and
 402       installation tools.</para>
 403
 404     <sect2 xml:id="ports-infrastructure">
 405       <title>Infrastructure Changes</title>
 406
 407       <para>&nbsp;</para>
 408     </sect2>
 409
 410     <sect2 xml:id="ports-packages ">
 411       <title>Packaging Changes</title>
 412
 413       <para>&nbsp;</para>
 414     </sect2>
 415   </sect1>
 416
 417   <sect1 xml:id="doc">
 418     <title>Documentation</title>
 419
 420     <para>This section covers changes to the &os;&nbsp;Documentation
 421       Project sources and toolchain.</para>
 422
 423     <sect2 xml:id="doc-sources">
 424       <title>Documentation Source Changes</title>
 425
 426       <para>&nbsp;</para>
 427     </sect2>
 428
 429     <sect2 xml:id="doc-toolchain">
 430       <title>Documentation Toolchain Changes</title>
 431
 432       <para>&nbsp;</para>
 433     </sect2>
 434   </sect1>
 435
 436   <sect1 xml:id="releng">
 437     <title>Release Engineering and Integration</title>
 438
 439     <para>This section convers changes that are specific to the
 440       &os;&nbsp;Release Engineering processes.</para>
 441
 442     <sect2 xml:id="releng-changes">
 443       <title>Integration Changes</title>
 444
 445       <para>&nbsp;</para>
 446     </sect2>
 447   </sect1>
 448 </article>