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     <!-- Last rev: 279055 -->
  26
  27     <copyright>
  28       <year>2015</year>
  29       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  30         Project</holder>
  31     </copyright>
  32
  33     <legalnotice xml:id="trademarks" role="trademarks">
  34       &tm-attrib.freebsd;
  35       &tm-attrib.ibm;
  36       &tm-attrib.ieee;
  37       &tm-attrib.intel;
  38       &tm-attrib.sparc;
  39       &tm-attrib.general;
  40     </legalnotice>
  41
  42     <abstract>
  43       <para>The release notes for &os; &release.current; contain
  44         a summary of the changes made to the &os; base system on the
  45         &release.branch; development line.  This document lists
  46         applicable security advisories that were issued since the last
  47         release, as well as significant changes to the &os; kernel and
  48         userland.  Some brief remarks on upgrading are also
  49         presented.</para>
  50     </abstract>
  51   </info>
  52
  53   <sect1 xml:id="intro">
  54     <title>Introduction</title>
  55
  56     <para>This document contains the release notes for &os;
  57       &release.current;.  It describes recently added, changed, or
  58       deleted features of &os;.  It also provides some notes on
  59       upgrading from previous versions of &os;.</para>
  60
  61     <para releasetype="current">The &release.type; distribution to
  62       which these release notes apply represents the latest point
  63       along the &release.branch; development branch since
  64       &release.branch; was created.  Information regarding pre-built,
  65       binary &release.type; distributions along this branch can be
  66       found at <uri
  67         xlink:href="&release.url;">&release.url;</uri>.</para>
  68
  69     <para releasetype="snapshot">The &release.type; distribution to
  70       which these release notes apply represents a point along the
  71       &release.branch; development branch between &release.prev; and
  72       the future &release.next;.  Information regarding pre-built,
  73       binary &release.type; distributions along this branch can be
  74       found at <uri
  75         xlink:href="&release.url;">&release.url;</uri>.</para>
  76
  77     <para releasetype="release">This distribution of &os;
  78       &release.current; is a &release.type; distribution.  It can be
  79       found at <uri xlink:href="&release.url;">&release.url;</uri> or
  80       any of its mirrors.  More information on obtaining this (or
  81       other) &release.type; distributions of &os; can be found in the
  82       <link
  83         xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
  84           &os;</quote> appendix</link> to the <link
  85         xlink:href="&url.books.handbook;/">&os;
  86         Handbook</link>.</para>
  87
  88     <para>All users are encouraged to consult the release errata
  89       before installing &os;.  The errata document is updated with
  90       <quote>late-breaking</quote> information discovered late in the
  91       release cycle or after the release.  Typically, it contains
  92       information on known bugs, security advisories, and corrections
  93       to documentation.  An up-to-date copy of the errata for &os;
  94       &release.current; can be found on the &os; Web site.</para>
  95
  96     <para>This document describes the most user-visible new or changed
  97       features in &os; since &release.prev;.</para>
  98
  99     <para>Typical release note items document recent security
 100       advisories issued after &release.prev;, new drivers or hardware
 101       support, new commands or options, major bug fixes, or
 102       contributed software upgrades.  They may also list changes to
 103       major ports/packages or release engineering practices.  Clearly
 104       the release notes cannot list every single change made to &os;
 105       between releases; this document focuses primarily on security
 106       advisories, user-visible changes, and major architectural
 107       improvements.</para>
 108   </sect1>
 109
 110   <sect1 xml:id="upgrade">
 111     <title>Upgrading from Previous Releases of &os;</title>
 112
 113     <para arch="amd64,i386">Binary upgrades between RELEASE versions
 114       (and snapshots of the various security branches) are supported
 115       using the &man.freebsd-update.8; utility.  The binary upgrade
 116       procedure will update unmodified userland utilities, as well as
 117       unmodified <filename>GENERIC</filename> kernel distributed as
 118       a part of an official &os; release.  The &man.freebsd-update.8;
 119       utility requires that the host being upgraded have Internet
 120       connectivity.</para>
 121
 122     <para>Source-based upgrades (those based on recompiling the &os;
 123       base system from source code) from previous versions are
 124       supported, according to the instructions in
 125       <filename>/usr/src/UPDATING</filename>.</para>
 126
 127     <important>
 128       <para>Upgrading &os; should only be attempted after
 129         backing up <emphasis>all</emphasis> data and configuration
 130         files.</para>
 131     </important>
 132   </sect1>
 133
 134   <sect1 xml:id="security-errata">
 135     <title>Security and Errata</title>
 136
 137     <para>This section lists the various Security Advisories and
 138       Errata Notices since &release.prev;.</para>
 139
 140     <sect2 xml:id="security">
 141       <title>Security Advisories</title>
 142
 143       &security;
 144     </sect2>
 145
 146     <sect2 xml:id="errata">
 147       <title>Errata Notices</title>
 148
 149       &errata;
 150     </sect2>
 151   </sect1>
 152
 153   <sect1 xml:id="userland">
 154     <title>Userland</title>
 155
 156     <para>This section covers changes and additions to userland
 157       applications, contributed software, and system utilities.</para>
 158
 159     <sect2 xml:id="userland-config">
 160       <title>Userland Configuration Changes</title>
 161
 162       <para revision="276991">The &man.termcap.5; file is installed
 163         as-is from sources, instead of reordering, creating
 164         <filename>/etc/termcap.db</filename> by default, providing
 165         a performance improvements to applications that use the
 166         &man.termcap.5; database, such as &man.vi.1; and
 167         &man.ncurses.3;.</para>
 168     </sect2>
 169
 170     <sect2 xml:id="userland-programs">
 171       <title>Userland Application Changes</title>
 172
 173       <para revision="275040">A new utility, &man.dpv.1;, has been
 174         added to the base system, providing a &man.dialog.1;-style
 175         progress view from one or more input streams.  A corresponding
 176         library, &man.dpv.3;, has also been added.</para>
 177
 178       <para revision="275945">The &man.elfdump.1; utility has been
 179         updated to support capability mode provided by
 180         &man.capsicum.4;.</para>
 181
 182       <para revision="277434" contrib="sponsor" sponsor="&ff;">The
 183         &man.fstyp.8; utility has been added, which is used to
 184         determine the filesystem on a specified device.</para>
 185     </sect2>
 186
 187     <sect2 xml:id="userland-contrib">
 188       <title>Contributed Software</title>
 189
 190       <para revision="280304"><application>OpenSSL</application> has
 191         been updated to version 1.0.1m.</para>
 192     </sect2>
 193
 194     <sect2 xml:id="userland-installer">
 195       <title>Installation and Configuration Tools</title>
 196
 197       <para>&nbsp;</para>
 198     </sect2>
 199
 200     <sect2 xml:id="userland-rc">
 201       <title><filename class="directory">/etc/rc.d</filename>
 202         Scripts</title>
 203
 204       <para>&nbsp;</para>
 205     </sect2>
 206
 207     <sect2 xml:id="userland-periodic">
 208       <title><filename class="directory">/etc/periodic</filename>
 209         Scripts</title>
 210
 211       <para>&nbsp;</para>
 212     </sect2>
 213
 214     <sect2 xml:id="userland-libraries">
 215       <title>Runtime Libraries and API</title>
 216
 217       <para revision="275040">A new file configuration library,
 218         &man.figpar.3;, has been added to the base system.</para>
 219
 220       <para revision="280392">The &man.setmode.3; function has been
 221         updated to consistently set <literal>errno</literal> on
 222         failure.</para>
 223     </sect2>
 224
 225     <sect2 xml:id="userland-abi">
 226       <title>ABI Compatibility</title>
 227
 228       <para>&nbsp;</para>
 229     </sect2>
 230   </sect1>
 231
 232   <sect1 xml:id="kernel">
 233     <title>Kernel</title>
 234
 235     <para>This section covers changes to kernel configurations, system
 236       tuning, and system control parameters that are not otherwise
 237       categorized.</para>
 238
 239     <sect2 xml:id="kernel-bugfix">
 240       <title>Kernel Bug Fixes</title>
 241
 242       <para>&nbsp;</para>
 243     </sect2>
 244
 245     <sect2 xml:id="kernel-config">
 246       <title>Kernel Configuration</title>
 247
 248       <para>&nbsp;</para>
 249     </sect2>
 250
 251     <sect2 xml:id="kernel-sysctl">
 252       <title>System Tuning and Controls</title>
 253
 254       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 255         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 256         been turned off by default.</para>
 257
 258       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 259         &man.hwpmc.4; default and maximum callchain depths have been
 260         increased.  The default has been increased from 16 to 32, and
 261         the maximum increased from 32 to 128.</para>
 262     </sect2>
 263   </sect1>
 264
 265   <sect1 xml:id="drivers">
 266     <title>Devices and Drivers</title>
 267
 268     <para>This section covers changes and additions to devices and
 269       device drivers since &release.prev;.</para>
 270
 271     <sect2 xml:id="drivers-device">
 272       <title>Device Drivers</title>
 273
 274       <para>&nbsp;</para>
 275     </sect2>
 276
 277     <sect2 xml:id="drivers-storage">
 278       <title>Storage Drivers</title>
 279
 280       <para>&nbsp;</para>
 281     </sect2>
 282
 283     <sect2 xml:id="drivers-network">
 284       <title>Network Drivers</title>
 285
 286       <para>&nbsp;</para>
 287     </sect2>
 288   </sect1>
 289
 290   <sect1 xml:id="hardware">
 291     <title>Hardware Support</title>
 292
 293     <para>This section covers general hardware support for physical
 294       machines, hypervisors, and virtualization environments, as well
 295       as hardware changes and updates that do not otherwise fit in
 296       other sections of this document.</para>
 297
 298     <sect2 xml:id="hardware-support">
 299       <title>Hardware Support</title>
 300
 301       <para>&nbsp;</para>
 302     </sect2>
 303
 304     <sect2 xml:id="hardware-virtualization">
 305       <title>Virtualization Support</title>
 306
 307       <para revision="280370">The &man.bhyve.8; hypervisor has been
 308         updated to support <literal>DSM TRIM</literal> commands for
 309         virtual <acronym>AHCI</acronym> disks.</para>
 310     </sect2>
 311
 312     <sect2 xml:id="hardware-arm">
 313       <title>ARM Support</title>
 314
 315       <para>&nbsp;</para>
 316     </sect2>
 317   </sect1>
 318
 319   <sect1 xml:id="storage">
 320     <title>Storage</title>
 321
 322     <para>This section covers changes and additions to file systems
 323       and other storage subsystems, both local and networked.</para>
 324
 325     <sect2 xml:id="storage-general">
 326       <title>General Storage</title>
 327       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 328         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 329         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 330         with a new mechanism that works for any port.</para>
 331
 332       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 333         &man.ctld.8; utility has been updated to allow controlling
 334         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 335     </sect2>
 336
 337     <sect2 xml:id="storage-net">
 338       <title>Networked Storage</title>
 339
 340       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 341         &man.ctld.8; utility has been updated to include support for
 342         registering <acronym>iSCSI</acronym> targets and portals on
 343         <acronym>iSNS</acronym> servers.  This provides a mechanism
 344         which allows <acronym>iSCSI</acronym> initiators to find
 345         targets and portals without requiring active
 346         discovery.</para>
 347     </sect2>
 348
 349     <sect2 xml:id="storage-zfs">
 350       <title>ZFS</title>
 351
 352       <para revision="275490">A new tunable,
 353         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 354         which controls how much space is reserved by default.</para>
 355
 356       <para revision="277583">The <literal>arc_meta_limit</literal>
 357         statistics are now visible through the
 358         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 359         change, the <literal>vfs.zfs.arc_meta_used</literal>
 360         &man.sysctl.8; has been removed, and replaced with the
 361         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 362         &man.sysctl.8;.</para>
 363     </sect2>
 364
 365     <sect2 xml:id="storage-geom">
 366       <title>&man.geom.4;</title>
 367
 368       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 369         &man.ctl.4; subsystem has been updated, increasing the ports
 370         limit from <literal>128</literal> to <literal>256</literal>,
 371         and <acronym>LUN</acronym> limit from <literal>256</literal>
 372         to <literal>1024</literal>.</para>
 373     </sect2>
 374   </sect1>
 375
 376   <sect1 xml:id="boot">
 377     <title>Boot Loader Changes</title>
 378
 379     <para>This section covers the boot loader, boot menu, and other
 380       boot-related changes.</para>
 381
 382     <sect2 xml:id="boot-loader">
 383       <title>Boot Loader Changes</title>
 384
 385       <para>&nbsp;</para>
 386     </sect2>
 387
 388     <sect2 xml:id="boot-menu">
 389       <title>Boot Menu Changes</title>
 390
 391       <para>&nbsp;</para>
 392     </sect2>
 393   </sect1>
 394
 395   <sect1 xml:id="network">
 396     <title>Networking</title>
 397
 398     <para>This section describes changes that affect networking in
 399       &os;.</para>
 400
 401     <sect2 xml:id="network-protocols">
 402       <title>Network Procols</title>
 403
 404       <para>&nbsp;</para>
 405     </sect2>
 406   </sect1>
 407
 408   <sect1 xml:id="ports">
 409     <title>Ports Collection and Package Infrastructure</title>
 410
 411     <para>This section covers changes to the &os;&nbsp;Ports
 412       Collection, package infrastructure, and package maintenance and
 413       installation tools.</para>
 414
 415     <sect2 xml:id="ports-infrastructure">
 416       <title>Infrastructure Changes</title>
 417
 418       <para>&nbsp;</para>
 419     </sect2>
 420
 421     <sect2 xml:id="ports-packages ">
 422       <title>Packaging Changes</title>
 423
 424       <para>&nbsp;</para>
 425     </sect2>
 426   </sect1>
 427
 428   <sect1 xml:id="doc">
 429     <title>Documentation</title>
 430
 431     <para>This section covers changes to the &os;&nbsp;Documentation
 432       Project sources and toolchain.</para>
 433
 434     <sect2 xml:id="doc-sources">
 435       <title>Documentation Source Changes</title>
 436
 437       <para>&nbsp;</para>
 438     </sect2>
 439
 440     <sect2 xml:id="doc-toolchain">
 441       <title>Documentation Toolchain Changes</title>
 442
 443       <para>&nbsp;</para>
 444     </sect2>
 445   </sect1>
 446
 447   <sect1 xml:id="releng">
 448     <title>Release Engineering and Integration</title>
 449
 450     <para>This section convers changes that are specific to the
 451       &os;&nbsp;Release Engineering processes.</para>
 452
 453     <sect2 xml:id="releng-changes">
 454       <title>Integration Changes</title>
 455
 456       <para>&nbsp;</para>
 457     </sect2>
 458   </sect1>
 459 </article>