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: 282497 -->
  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
 203       <para revision="282278">A race condition in &man.wc.1; that
 204         would cause final results to be sent to &man.stderr.4; when
 205         receiving the <literal>SIGINFO</literal> signal has been
 206         fixed.</para>
 207
 208       <para revision="282870" contrib="sponsor"
 209         sponsor="&scaleengine;">The &man.freebsd-update.8; utility has
 210         been updated to prevent fetching updated binary patches when
 211         a previous upgrade has not been thoroughly completed.</para>
 212
 213       <para revision="282974" contrib="sponsor" sponsor="&ff;">The
 214         &man.uefisign.8; utility has been added.</para>
 215     </sect2>
 216
 217     <sect2 xml:id="userland-contrib">
 218       <title>Contributed Software</title>
 219
 220       <para revision="277592"><application>file</application> has been
 221         updated to version 5.22.</para>
 222
 223       <para revision="280304"><application>OpenSSL</application> has
 224         been updated to version 1.0.1m.</para>
 225
 226       <para revision="281687">The &man.acpi.4; subsystem has been
 227         updated to version 20150410.</para>
 228
 229       <para revision="282746" contrib="sponsor" sponsor="&ff;">The
 230         &man.resolvconf.8; utility has been updated to version
 231         3.7.0.</para>
 232     </sect2>
 233
 234     <sect2 xml:id="userland-installer">
 235       <title>Installation and Configuration Tools</title>
 236
 237       <para>&nbsp;</para>
 238     </sect2>
 239
 240     <sect2 xml:id="userland-rc">
 241       <title><filename class="directory">/etc/rc.d</filename>
 242         Scripts</title>
 243
 244       <para>&nbsp;</para>
 245     </sect2>
 246
 247     <sect2 xml:id="userland-periodic">
 248       <title><filename class="directory">/etc/periodic</filename>
 249         Scripts</title>
 250
 251       <para>&nbsp;</para>
 252     </sect2>
 253
 254     <sect2 xml:id="userland-libraries">
 255       <title>Runtime Libraries and API</title>
 256
 257       <para revision="275040">A new file configuration library,
 258         &man.figpar.3;, has been added to the base system.</para>
 259
 260       <para revision="280392">The &man.setmode.3; function has been
 261         updated to consistently set <literal>errno</literal> on
 262         failure.</para>
 263     </sect2>
 264
 265     <sect2 xml:id="userland-abi">
 266       <title>ABI Compatibility</title>
 267
 268       <para>&nbsp;</para>
 269     </sect2>
 270   </sect1>
 271
 272   <sect1 xml:id="kernel">
 273     <title>Kernel</title>
 274
 275     <para>This section covers changes to kernel configurations, system
 276       tuning, and system control parameters that are not otherwise
 277       categorized.</para>
 278
 279     <sect2 xml:id="kernel-bugfix">
 280       <title>Kernel Bug Fixes</title>
 281
 282       <para>&nbsp;</para>
 283     </sect2>
 284
 285     <sect2 xml:id="kernel-config">
 286       <title>Kernel Configuration</title>
 287
 288       <para>&nbsp;</para>
 289     </sect2>
 290
 291     <sect2 xml:id="kernel-sysctl">
 292       <title>System Tuning and Controls</title>
 293
 294       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 295         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 296         been turned off by default.</para>
 297
 298       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 299         &man.hwpmc.4; default and maximum callchain depths have been
 300         increased.  The default has been increased from 16 to 32, and
 301         the maximum increased from 32 to 128.</para>
 302
 303       <para revision="281255" contrib="sponsor"
 304         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 305         been changed to update timestamps for read/write operations
 306         using seconds precision.  A new &man.sysctl.8;,
 307         <literal>vfs.devfs.dotimes</literal> has been added, which
 308         when set to a non-zero value, enables default precision
 309         timestamps for these operations.</para>
 310
 311       <para revision="280632">The <literal>kern.osrelease</literal>
 312         and <literal>kern.osreldate</literal> are now configurable
 313         &man.jail.8; parameters.</para>
 314     </sect2>
 315   </sect1>
 316
 317   <sect1 xml:id="drivers">
 318     <title>Devices and Drivers</title>
 319
 320     <para>This section covers changes and additions to devices and
 321       device drivers since &release.prev;.</para>
 322
 323     <sect2 xml:id="drivers-device">
 324       <title>Device Drivers</title>
 325
 326       <para revision="282199">The <literal>drm</literal> code has
 327         been updated to match &linux; version 3.8.13.</para>
 328     </sect2>
 329
 330     <sect2 xml:id="drivers-storage">
 331       <title>Storage Drivers</title>
 332
 333       <para revision="281957">The &man.hptnr.4; driver has been
 334         updated to version 1.1.1.</para>
 335     </sect2>
 336
 337     <sect2 xml:id="drivers-network">
 338       <title>Network Drivers</title>
 339
 340       <para>&nbsp;</para>
 341     </sect2>
 342   </sect1>
 343
 344   <sect1 xml:id="hardware">
 345     <title>Hardware Support</title>
 346
 347     <para>This section covers general hardware support for physical
 348       machines, hypervisors, and virtualization environments, as well
 349       as hardware changes and updates that do not otherwise fit in
 350       other sections of this document.</para>
 351
 352     <sect2 xml:id="hardware-support">
 353       <title>Hardware Support</title>
 354
 355       <para>&nbsp;</para>
 356     </sect2>
 357
 358     <sect2 xml:id="hardware-virtualization">
 359       <title>Virtualization Support</title>
 360
 361       <para revision="280370">The &man.bhyve.8; hypervisor has been
 362         updated to support <literal>DSM TRIM</literal> commands for
 363         virtual <acronym>AHCI</acronym> disks.</para>
 364
 365       <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
 366         Hyper-V&trade; drivers have been updated with several
 367         enhancements:</para>
 368
 369       <itemizedlist>
 370         <listitem>
 371           <para>The &man.hv.vmbus.4; driver now has multi-channel
 372             support.</para>
 373         </listitem>
 374
 375         <listitem>
 376           <para>The &man.hv.storvsc.4; driver now has scatter/gather
 377             support, in addition to performance improvements.</para>
 378         </listitem>
 379
 380         <listitem>
 381           <para>The &man.hv.kvp.4; driver has received several bug
 382             fixes.</para>
 383         </listitem>
 384       </itemizedlist>
 385     </sect2>
 386
 387     <sect2 xml:id="hardware-arm">
 388       <title>ARM Support</title>
 389
 390       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 391         driver has been added, which supports <acronym>CPU</acronym>
 392         frequency and voltage control on the Raspberry Pi
 393         <acronym>SOC</acronym>.</para>
 394     </sect2>
 395   </sect1>
 396
 397   <sect1 xml:id="storage">
 398     <title>Storage</title>
 399
 400     <para>This section covers changes and additions to file systems
 401       and other storage subsystems, both local and networked.</para>
 402
 403     <sect2 xml:id="storage-general">
 404       <title>General Storage</title>
 405
 406       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 407         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 408         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 409         with a new mechanism that works for any port.</para>
 410
 411       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 412         &man.ctld.8; utility has been updated to allow controlling
 413         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 414
 415       <para revision="283223" contrib="sponsor" sponsor="&ff;">The
 416         &man.autofs.5; subsystem has been updated to include a new
 417         &man.auto.master.5; map, <literal>-media</literal>, which
 418         allows automatically mounting removable media, such as
 419         <acronym>CD</acronym> drives or <acronym>USB</acronym> flash
 420         drives.</para>
 421
 422       <para revision="283242" contrib="sponsor" sponsor="&ff;">The
 423         &man.autofs.5; subsystem has been updated to include a new
 424         &man.auto.master.5; map, <literal>-noauto</literal>, which
 425         handles &man.fstab.5; entries set to
 426         <literal>noauto</literal>.</para>
 427     </sect2>
 428
 429     <sect2 xml:id="storage-net">
 430       <title>Networked Storage</title>
 431
 432       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 433         &man.ctld.8; utility has been updated to include support for
 434         registering <acronym>iSCSI</acronym> targets and portals on
 435         <acronym>iSNS</acronym> servers.  This provides a mechanism
 436         which allows <acronym>iSCSI</acronym> initiators to find
 437         targets and portals without requiring active
 438         discovery.</para>
 439     </sect2>
 440
 441     <sect2 xml:id="storage-zfs">
 442       <title>ZFS</title>
 443
 444       <para revision="275490">A new tunable,
 445         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 446         which controls how much space is reserved by default.</para>
 447
 448       <para revision="277583">The <literal>arc_meta_limit</literal>
 449         statistics are now visible through the
 450         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 451         change, the <literal>vfs.zfs.arc_meta_used</literal>
 452         &man.sysctl.8; has been removed, and replaced with the
 453         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 454         &man.sysctl.8;.</para>
 455     </sect2>
 456
 457     <sect2 xml:id="storage-geom">
 458       <title>&man.geom.4;</title>
 459
 460       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 461         &man.ctl.4; subsystem has been updated, increasing the ports
 462         limit from <literal>128</literal> to <literal>256</literal>,
 463         and <acronym>LUN</acronym> limit from <literal>256</literal>
 464         to <literal>1024</literal>.</para>
 465     </sect2>
 466   </sect1>
 467
 468   <sect1 xml:id="boot">
 469     <title>Boot Loader Changes</title>
 470
 471     <para>This section covers the boot loader, boot menu, and other
 472       boot-related changes.</para>
 473
 474     <sect2 xml:id="boot-loader">
 475       <title>Boot Loader Changes</title>
 476
 477       <para revision="281843">The boot loader has been updated to
 478         support entering the <acronym>GELI</acronym> passphrase before
 479         loading the kernel.  To enable this behavior, add
 480         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 481         &man.loader.conf.5;.</para>
 482
 483       <para revision="283262" contrib="sponsor" sponsor="&ff;">The
 484         memory test run at boot time on &os;/&arch.amd64; platforms
 485         has been disabled by default.</para>
 486     </sect2>
 487
 488     <sect2 xml:id="boot-menu">
 489       <title>Boot Menu Changes</title>
 490
 491       <para>&nbsp;</para>
 492     </sect2>
 493   </sect1>
 494
 495   <sect1 xml:id="network">
 496     <title>Networking</title>
 497
 498     <para>This section describes changes that affect networking in
 499       &os;.</para>
 500
 501     <sect2 xml:id="network-protocols">
 502       <title>Network Procols</title>
 503
 504       <para>&nbsp;</para>
 505     </sect2>
 506   </sect1>
 507
 508   <sect1 xml:id="ports">
 509     <title>Ports Collection and Package Infrastructure</title>
 510
 511     <para>This section covers changes to the &os;&nbsp;Ports
 512       Collection, package infrastructure, and package maintenance and
 513       installation tools.</para>
 514
 515     <sect2 xml:id="ports-infrastructure">
 516       <title>Infrastructure Changes</title>
 517
 518       <para>&nbsp;</para>
 519     </sect2>
 520
 521     <sect2 xml:id="ports-packages ">
 522       <title>Packaging Changes</title>
 523
 524       <para>&nbsp;</para>
 525     </sect2>
 526   </sect1>
 527
 528   <sect1 xml:id="doc">
 529     <title>Documentation</title>
 530
 531     <para>This section covers changes to the &os;&nbsp;Documentation
 532       Project sources and toolchain.</para>
 533
 534     <sect2 xml:id="doc-sources">
 535       <title>Documentation Source Changes</title>
 536
 537       <para>&nbsp;</para>
 538     </sect2>
 539
 540     <sect2 xml:id="doc-toolchain">
 541       <title>Documentation Toolchain Changes</title>
 542
 543       <para>&nbsp;</para>
 544     </sect2>
 545   </sect1>
 546
 547   <sect1 xml:id="releng">
 548     <title>Release Engineering and Integration</title>
 549
 550     <para>This section convers changes that are specific to the
 551       &os;&nbsp;Release Engineering processes.</para>
 552
 553     <sect2 xml:id="releng-changes">
 554       <title>Integration Changes</title>
 555
 556       <para>&nbsp;</para>
 557     </sect2>
 558   </sect1>
 559 </article>