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

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   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: 282143 -->
  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
 186       <para revision="281044">A regression in the &man.libarchive.3;
 187         library that would prevent a directory from being included in
 188         the archive when <literal>--one-file-system</literal> is used
 189         has been fixed.</para>
 190
 191       <para revision="281161" contrib="sponsor"
 192         sponsor="&limelight;">A new flag, <literal>-R</literal>, has
 193         been added to the &man.netstat.8; utility, which is used to
 194         dump <acronym>RSS</acronym>/flow information.</para>
 195
 196       <para revision="281936" contrib="sponsor" sponsor="&ff;">The
 197         &man.ar.1; utility has been updated to set
 198         <literal>ARCHIVE_EXTRACT_SECURE_SYMLINKS</literal> and
 199         <literal>ARCHIVE_EXTRACT_SECURE_NODOTDOT</literal> to disallow
 200         directory traversal when extracting an archive, similar to
 201         &man.tar.1;.</para>
 202     </sect2>
 203
 204     <sect2 xml:id="userland-contrib">
 205       <title>Contributed Software</title>
 206
 207       <para revision="277592"><application>file</application> has been
 208         updated to version 5.22.</para>
 209
 210       <para revision="280304"><application>OpenSSL</application> has
 211         been updated to version 1.0.1m.</para>
 212
 213       <para revision="281687">The &man.acpi.4; subsystem has been
 214         updated to version 20150410.</para>
 215     </sect2>
 216
 217     <sect2 xml:id="userland-installer">
 218       <title>Installation and Configuration Tools</title>
 219
 220       <para>&nbsp;</para>
 221     </sect2>
 222
 223     <sect2 xml:id="userland-rc">
 224       <title><filename class="directory">/etc/rc.d</filename>
 225         Scripts</title>
 226
 227       <para>&nbsp;</para>
 228     </sect2>
 229
 230     <sect2 xml:id="userland-periodic">
 231       <title><filename class="directory">/etc/periodic</filename>
 232         Scripts</title>
 233
 234       <para>&nbsp;</para>
 235     </sect2>
 236
 237     <sect2 xml:id="userland-libraries">
 238       <title>Runtime Libraries and API</title>
 239
 240       <para revision="275040">A new file configuration library,
 241         &man.figpar.3;, has been added to the base system.</para>
 242
 243       <para revision="280392">The &man.setmode.3; function has been
 244         updated to consistently set <literal>errno</literal> on
 245         failure.</para>
 246     </sect2>
 247
 248     <sect2 xml:id="userland-abi">
 249       <title>ABI Compatibility</title>
 250
 251       <para>&nbsp;</para>
 252     </sect2>
 253   </sect1>
 254
 255   <sect1 xml:id="kernel">
 256     <title>Kernel</title>
 257
 258     <para>This section covers changes to kernel configurations, system
 259       tuning, and system control parameters that are not otherwise
 260       categorized.</para>
 261
 262     <sect2 xml:id="kernel-bugfix">
 263       <title>Kernel Bug Fixes</title>
 264
 265       <para>&nbsp;</para>
 266     </sect2>
 267
 268     <sect2 xml:id="kernel-config">
 269       <title>Kernel Configuration</title>
 270
 271       <para>&nbsp;</para>
 272     </sect2>
 273
 274     <sect2 xml:id="kernel-sysctl">
 275       <title>System Tuning and Controls</title>
 276
 277       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 278         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 279         been turned off by default.</para>
 280
 281       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 282         &man.hwpmc.4; default and maximum callchain depths have been
 283         increased.  The default has been increased from 16 to 32, and
 284         the maximum increased from 32 to 128.</para>
 285
 286       <para revision="281255" contrib="sponsor"
 287         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 288         been changed to update timestamps for read/write operations
 289         using seconds precision.  A new &man.sysctl.8;,
 290         <literal>vfs.devfs.dotimes</literal> has been added, which
 291         when set to a non-zero value, enables default precision
 292         timestamps for these operations.</para>
 293
 294       <para revision="280632">The <literal>kern.osrelease</literal>
 295         and <literal>kern.osreldate</literal> are now configurable
 296         &man.jail.8; parameters.</para>
 297     </sect2>
 298   </sect1>
 299
 300   <sect1 xml:id="drivers">
 301     <title>Devices and Drivers</title>
 302
 303     <para>This section covers changes and additions to devices and
 304       device drivers since &release.prev;.</para>
 305
 306     <sect2 xml:id="drivers-device">
 307       <title>Device Drivers</title>
 308
 309       <para revision="282199">The <literal>drm</literal> code has
 310         been updated to match &linux; version 3.8.13.</para>
 311     </sect2>
 312
 313     <sect2 xml:id="drivers-storage">
 314       <title>Storage Drivers</title>
 315
 316       <para revision="281957">The &man.hptnr.4; driver has been
 317         updated to version 1.1.1.</para>
 318     </sect2>
 319
 320     <sect2 xml:id="drivers-network">
 321       <title>Network Drivers</title>
 322
 323       <para>&nbsp;</para>
 324     </sect2>
 325   </sect1>
 326
 327   <sect1 xml:id="hardware">
 328     <title>Hardware Support</title>
 329
 330     <para>This section covers general hardware support for physical
 331       machines, hypervisors, and virtualization environments, as well
 332       as hardware changes and updates that do not otherwise fit in
 333       other sections of this document.</para>
 334
 335     <sect2 xml:id="hardware-support">
 336       <title>Hardware Support</title>
 337
 338       <para>&nbsp;</para>
 339     </sect2>
 340
 341     <sect2 xml:id="hardware-virtualization">
 342       <title>Virtualization Support</title>
 343
 344       <para revision="280370">The &man.bhyve.8; hypervisor has been
 345         updated to support <literal>DSM TRIM</literal> commands for
 346         virtual <acronym>AHCI</acronym> disks.</para>
 347     </sect2>
 348
 349     <sect2 xml:id="hardware-arm">
 350       <title>ARM Support</title>
 351
 352       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 353         driver has been added, which supports <acronym>CPU</acronym>
 354         frequency and voltage control on the Raspberry Pi
 355         <acronym>SOC</acronym>.</para>
 356     </sect2>
 357   </sect1>
 358
 359   <sect1 xml:id="storage">
 360     <title>Storage</title>
 361
 362     <para>This section covers changes and additions to file systems
 363       and other storage subsystems, both local and networked.</para>
 364
 365     <sect2 xml:id="storage-general">
 366       <title>General Storage</title>
 367
 368       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 369         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 370         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 371         with a new mechanism that works for any port.</para>
 372
 373       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 374         &man.ctld.8; utility has been updated to allow controlling
 375         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 376     </sect2>
 377
 378     <sect2 xml:id="storage-net">
 379       <title>Networked Storage</title>
 380
 381       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 382         &man.ctld.8; utility has been updated to include support for
 383         registering <acronym>iSCSI</acronym> targets and portals on
 384         <acronym>iSNS</acronym> servers.  This provides a mechanism
 385         which allows <acronym>iSCSI</acronym> initiators to find
 386         targets and portals without requiring active
 387         discovery.</para>
 388     </sect2>
 389
 390     <sect2 xml:id="storage-zfs">
 391       <title>ZFS</title>
 392
 393       <para revision="275490">A new tunable,
 394         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 395         which controls how much space is reserved by default.</para>
 396
 397       <para revision="277583">The <literal>arc_meta_limit</literal>
 398         statistics are now visible through the
 399         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 400         change, the <literal>vfs.zfs.arc_meta_used</literal>
 401         &man.sysctl.8; has been removed, and replaced with the
 402         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 403         &man.sysctl.8;.</para>
 404     </sect2>
 405
 406     <sect2 xml:id="storage-geom">
 407       <title>&man.geom.4;</title>
 408
 409       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 410         &man.ctl.4; subsystem has been updated, increasing the ports
 411         limit from <literal>128</literal> to <literal>256</literal>,
 412         and <acronym>LUN</acronym> limit from <literal>256</literal>
 413         to <literal>1024</literal>.</para>
 414     </sect2>
 415   </sect1>
 416
 417   <sect1 xml:id="boot">
 418     <title>Boot Loader Changes</title>
 419
 420     <para>This section covers the boot loader, boot menu, and other
 421       boot-related changes.</para>
 422
 423     <sect2 xml:id="boot-loader">
 424       <title>Boot Loader Changes</title>
 425
 426       <para revision="281843">The boot loader has been updated to
 427         support entering the <acronym>GELI</acronym> passphrase before
 428         loading the kernel.  To enable this behavior, add
 429         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 430         &man.loader.conf.5;.</para>
 431     </sect2>
 432
 433     <sect2 xml:id="boot-menu">
 434       <title>Boot Menu Changes</title>
 435
 436       <para>&nbsp;</para>
 437     </sect2>
 438   </sect1>
 439
 440   <sect1 xml:id="network">
 441     <title>Networking</title>
 442
 443     <para>This section describes changes that affect networking in
 444       &os;.</para>
 445
 446     <sect2 xml:id="network-protocols">
 447       <title>Network Procols</title>
 448
 449       <para>&nbsp;</para>
 450     </sect2>
 451   </sect1>
 452
 453   <sect1 xml:id="ports">
 454     <title>Ports Collection and Package Infrastructure</title>
 455
 456     <para>This section covers changes to the &os;&nbsp;Ports
 457       Collection, package infrastructure, and package maintenance and
 458       installation tools.</para>
 459
 460     <sect2 xml:id="ports-infrastructure">
 461       <title>Infrastructure Changes</title>
 462
 463       <para>&nbsp;</para>
 464     </sect2>
 465
 466     <sect2 xml:id="ports-packages ">
 467       <title>Packaging Changes</title>
 468
 469       <para>&nbsp;</para>
 470     </sect2>
 471   </sect1>
 472
 473   <sect1 xml:id="doc">
 474     <title>Documentation</title>
 475
 476     <para>This section covers changes to the &os;&nbsp;Documentation
 477       Project sources and toolchain.</para>
 478
 479     <sect2 xml:id="doc-sources">
 480       <title>Documentation Source Changes</title>
 481
 482       <para>&nbsp;</para>
 483     </sect2>
 484
 485     <sect2 xml:id="doc-toolchain">
 486       <title>Documentation Toolchain Changes</title>
 487
 488       <para>&nbsp;</para>
 489     </sect2>
 490   </sect1>
 491
 492   <sect1 xml:id="releng">
 493     <title>Release Engineering and Integration</title>
 494
 495     <para>This section convers changes that are specific to the
 496       &os;&nbsp;Release Engineering processes.</para>
 497
 498     <sect2 xml:id="releng-changes">
 499       <title>Integration Changes</title>
 500
 501       <para>&nbsp;</para>
 502     </sect2>
 503   </sect1>
 504 </article>