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
 216       <para revision="283875" contrib="sponsor"
 217         sponsor="&multiplay;">The &man.chflags.1;, &man.chgrp.1;,
 218         &man.chmod.1;, and &man.chown.8; utilities now affect symbolic
 219         links when the <literal>-R</literal> flag is specified, as
 220         documented in &man.symlink.7;.</para>
 221     </sect2>
 222
 223     <sect2 xml:id="userland-contrib">
 224       <title>Contributed Software</title>
 225
 226       <para revision="277592"><application>file</application> has been
 227         updated to version 5.22.</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
 233       <para revision="284330"><application>OpenSSL</application> has
 234         been updated to version 1.0.1o.</para>
 235
 236       <para revision="284460">The &man.acpi.4; subsystem has been
 237         updated to version 20150515.</para>
 238
 239       <para revision="284778">The &man.file.1; utility has been
 240         updated to version 5.23.</para>
 241     </sect2>
 242
 243     <sect2 xml:id="userland-installer">
 244       <title>Installation and Configuration Tools</title>
 245
 246       <para>&nbsp;</para>
 247     </sect2>
 248
 249     <sect2 xml:id="userland-rc">
 250       <title><filename class="directory">/etc/rc.d</filename>
 251         Scripts</title>
 252
 253       <para>&nbsp;</para>
 254     </sect2>
 255
 256     <sect2 xml:id="userland-periodic">
 257       <title><filename class="directory">/etc/periodic</filename>
 258         Scripts</title>
 259
 260       <para>&nbsp;</para>
 261     </sect2>
 262
 263     <sect2 xml:id="userland-libraries">
 264       <title>Runtime Libraries and API</title>
 265
 266       <para revision="275040">A new file configuration library,
 267         &man.figpar.3;, has been added to the base system.</para>
 268
 269       <para revision="280392">The &man.setmode.3; function has been
 270         updated to consistently set <literal>errno</literal> on
 271         failure.</para>
 272     </sect2>
 273
 274     <sect2 xml:id="userland-abi">
 275       <title>ABI Compatibility</title>
 276
 277       <para>&nbsp;</para>
 278     </sect2>
 279   </sect1>
 280
 281   <sect1 xml:id="kernel">
 282     <title>Kernel</title>
 283
 284     <para>This section covers changes to kernel configurations, system
 285       tuning, and system control parameters that are not otherwise
 286       categorized.</para>
 287
 288     <sect2 xml:id="kernel-bugfix">
 289       <title>Kernel Bug Fixes</title>
 290
 291       <para>&nbsp;</para>
 292     </sect2>
 293
 294     <sect2 xml:id="kernel-config">
 295       <title>Kernel Configuration</title>
 296
 297       <para revision="284522" contrib="sponsor"
 298         sponsor="&limelight;">A new kernel configuration option,
 299         <literal>EM_MULTIQUEUE</literal>, has been added which enables
 300         multi-queue support in the &man.em.4; driver.</para>
 301
 302       <note>
 303         <para>Multi-queue support in the &man.em.4; driver is not
 304           officially supported by &intel;.</para>
 305       </note>
 306     </sect2>
 307
 308     <sect2 xml:id="kernel-sysctl">
 309       <title>System Tuning and Controls</title>
 310
 311       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 312         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 313         been turned off by default.</para>
 314
 315       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 316         &man.hwpmc.4; default and maximum callchain depths have been
 317         increased.  The default has been increased from 16 to 32, and
 318         the maximum increased from 32 to 128.</para>
 319
 320       <para revision="281255" contrib="sponsor"
 321         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 322         been changed to update timestamps for read/write operations
 323         using seconds precision.  A new &man.sysctl.8;,
 324         <literal>vfs.devfs.dotimes</literal> has been added, which
 325         when set to a non-zero value, enables default precision
 326         timestamps for these operations.</para>
 327
 328       <para revision="280632">The <literal>kern.osrelease</literal>
 329         and <literal>kern.osreldate</literal> are now configurable
 330         &man.jail.8; parameters.</para>
 331
 332       <para revision="284665" contrib="sponsor" sponsor="&ff;">A new
 333         &man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
 334         added, which when set to a non-zero value allows using
 335         &man.rctl.8; with the <literal>GENERIC</literal> kernel.
 336         A new kernel configuration option,
 337         <literal>RACCT_DISABLED</literal> has also been added.</para>
 338
 339       <para revision="284665" contrib="sponsor" sponsor="&ff;">The
 340         <literal>GENERIC</literal> kernel configuration now includes
 341         <literal>RACCT</literal> and <literal>RCTL</literal> by
 342         default.</para>
 343
 344       <note>
 345         <para>To enable <literal>RACCT</literal> and
 346           <literal>RCTL</literal> on a system using the
 347           <literal>GENERIC</literal> kernel configuration, add
 348           <literal>kern.racct.enable=1</literal> to
 349           &man.loader.conf.5;, and reboot the system.</para>
 350       </note>
 351     </sect2>
 352   </sect1>
 353
 354   <sect1 xml:id="drivers">
 355     <title>Devices and Drivers</title>
 356
 357     <para>This section covers changes and additions to devices and
 358       device drivers since &release.prev;.</para>
 359
 360     <sect2 xml:id="drivers-device">
 361       <title>Device Drivers</title>
 362
 363       <para revision="282199">The <literal>drm</literal> code has
 364         been updated to match &linux; version 3.8.13.</para>
 365     </sect2>
 366
 367     <sect2 xml:id="drivers-storage">
 368       <title>Storage Drivers</title>
 369
 370       <para revision="281957">The &man.hptnr.4; driver has been
 371         updated to version 1.1.1.</para>
 372     </sect2>
 373
 374     <sect2 xml:id="drivers-network">
 375       <title>Network Drivers</title>
 376
 377       <para>&nbsp;</para>
 378     </sect2>
 379   </sect1>
 380
 381   <sect1 xml:id="hardware">
 382     <title>Hardware Support</title>
 383
 384     <para>This section covers general hardware support for physical
 385       machines, hypervisors, and virtualization environments, as well
 386       as hardware changes and updates that do not otherwise fit in
 387       other sections of this document.</para>
 388
 389     <sect2 xml:id="hardware-support">
 390       <title>Hardware Support</title>
 391
 392       <para>&nbsp;</para>
 393     </sect2>
 394
 395     <sect2 xml:id="hardware-virtualization">
 396       <title>Virtualization Support</title>
 397
 398       <para revision="280370">The &man.bhyve.8; hypervisor has been
 399         updated to support <literal>DSM TRIM</literal> commands for
 400         virtual <acronym>AHCI</acronym> disks.</para>
 401
 402       <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
 403         Hyper-V&trade; drivers have been updated with several
 404         enhancements:</para>
 405
 406       <itemizedlist>
 407         <listitem>
 408           <para>The &man.hv.vmbus.4; driver now has multi-channel
 409             support.</para>
 410         </listitem>
 411
 412         <listitem>
 413           <para>The &man.hv.storvsc.4; driver now has scatter/gather
 414             support, in addition to performance improvements.</para>
 415         </listitem>
 416
 417         <listitem>
 418           <para>The &man.hv.kvp.4; driver has received several bug
 419             fixes.</para>
 420         </listitem>
 421       </itemizedlist>
 422     </sect2>
 423
 424     <sect2 xml:id="hardware-arm">
 425       <title>ARM Support</title>
 426
 427       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 428         driver has been added, which supports <acronym>CPU</acronym>
 429         frequency and voltage control on the Raspberry Pi
 430         <acronym>SOC</acronym>.</para>
 431     </sect2>
 432   </sect1>
 433
 434   <sect1 xml:id="storage">
 435     <title>Storage</title>
 436
 437     <para>This section covers changes and additions to file systems
 438       and other storage subsystems, both local and networked.</para>
 439
 440     <sect2 xml:id="storage-general">
 441       <title>General Storage</title>
 442
 443       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 444         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 445         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 446         with a new mechanism that works for any port.</para>
 447
 448       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 449         &man.ctld.8; utility has been updated to allow controlling
 450         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 451
 452       <para revision="283223" contrib="sponsor" sponsor="&ff;">The
 453         &man.autofs.5; subsystem has been updated to include a new
 454         &man.auto.master.5; map, <literal>-media</literal>, which
 455         allows automatically mounting removable media, such as
 456         <acronym>CD</acronym> drives or <acronym>USB</acronym> flash
 457         drives.</para>
 458
 459       <para revision="283242" contrib="sponsor" sponsor="&ff;">The
 460         &man.autofs.5; subsystem has been updated to include a new
 461         &man.auto.master.5; map, <literal>-noauto</literal>, which
 462         handles &man.fstab.5; entries set to
 463         <literal>noauto</literal>.</para>
 464     </sect2>
 465
 466     <sect2 xml:id="storage-net">
 467       <title>Networked Storage</title>
 468
 469       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 470         &man.ctld.8; utility has been updated to include support for
 471         registering <acronym>iSCSI</acronym> targets and portals on
 472         <acronym>iSNS</acronym> servers.  This provides a mechanism
 473         which allows <acronym>iSCSI</acronym> initiators to find
 474         targets and portals without requiring active
 475         discovery.</para>
 476     </sect2>
 477
 478     <sect2 xml:id="storage-zfs">
 479       <title>ZFS</title>
 480
 481       <para revision="275490">A new tunable,
 482         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 483         which controls how much space is reserved by default.</para>
 484
 485       <para revision="277583">The <literal>arc_meta_limit</literal>
 486         statistics are now visible through the
 487         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 488         change, the <literal>vfs.zfs.arc_meta_used</literal>
 489         &man.sysctl.8; has been removed, and replaced with the
 490         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 491         &man.sysctl.8;.</para>
 492     </sect2>
 493
 494     <sect2 xml:id="storage-geom">
 495       <title>&man.geom.4;</title>
 496
 497       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 498         &man.ctl.4; subsystem has been updated, increasing the ports
 499         limit from <literal>128</literal> to <literal>256</literal>,
 500         and <acronym>LUN</acronym> limit from <literal>256</literal>
 501         to <literal>1024</literal>.</para>
 502     </sect2>
 503   </sect1>
 504
 505   <sect1 xml:id="boot">
 506     <title>Boot Loader Changes</title>
 507
 508     <para>This section covers the boot loader, boot menu, and other
 509       boot-related changes.</para>
 510
 511     <sect2 xml:id="boot-loader">
 512       <title>Boot Loader Changes</title>
 513
 514       <para revision="281843">The boot loader has been updated to
 515         support entering the <acronym>GELI</acronym> passphrase before
 516         loading the kernel.  To enable this behavior, add
 517         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 518         &man.loader.conf.5;.</para>
 519
 520       <para revision="283262" contrib="sponsor" sponsor="&ff;">The
 521         memory test run at boot time on &os;/&arch.amd64; platforms
 522         has been disabled by default.</para>
 523     </sect2>
 524
 525     <sect2 xml:id="boot-menu">
 526       <title>Boot Menu Changes</title>
 527
 528       <para>&nbsp;</para>
 529     </sect2>
 530   </sect1>
 531
 532   <sect1 xml:id="network">
 533     <title>Networking</title>
 534
 535     <para>This section describes changes that affect networking in
 536       &os;.</para>
 537
 538     <sect2 xml:id="network-protocols">
 539       <title>Network Procols</title>
 540
 541       <para>&nbsp;</para>
 542     </sect2>
 543   </sect1>
 544
 545   <sect1 xml:id="ports">
 546     <title>Ports Collection and Package Infrastructure</title>
 547
 548     <para>This section covers changes to the &os;&nbsp;Ports
 549       Collection, package infrastructure, and package maintenance and
 550       installation tools.</para>
 551
 552     <sect2 xml:id="ports-infrastructure">
 553       <title>Infrastructure Changes</title>
 554
 555       <para>&nbsp;</para>
 556     </sect2>
 557
 558     <sect2 xml:id="ports-packages ">
 559       <title>Packaging Changes</title>
 560
 561       <para>&nbsp;</para>
 562     </sect2>
 563   </sect1>
 564
 565   <sect1 xml:id="doc">
 566     <title>Documentation</title>
 567
 568     <para>This section covers changes to the &os;&nbsp;Documentation
 569       Project sources and toolchain.</para>
 570
 571     <sect2 xml:id="doc-sources">
 572       <title>Documentation Source Changes</title>
 573
 574       <para>&nbsp;</para>
 575     </sect2>
 576
 577     <sect2 xml:id="doc-toolchain">
 578       <title>Documentation Toolchain Changes</title>
 579
 580       <para>&nbsp;</para>
 581     </sect2>
 582   </sect1>
 583
 584   <sect1 xml:id="releng">
 585     <title>Release Engineering and Integration</title>
 586
 587     <para>This section convers changes that are specific to the
 588       &os;&nbsp;Release Engineering processes.</para>
 589
 590     <sect2 xml:id="releng-changes">
 591       <title>Integration Changes</title>
 592
 593       <para>&nbsp;</para>
 594     </sect2>
 595   </sect1>
 596 </article>