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="281687">The &man.acpi.4; subsystem has been
 230         updated to version 20150410.</para>
 231
 232       <para revision="282746" contrib="sponsor" sponsor="&ff;">The
 233         &man.resolvconf.8; utility has been updated to version
 234         3.7.0.</para>
 235
 236       <para revision="284330"><application>OpenSSL</application> has
 237         been updated to version 1.0.1o.</para>
 238     </sect2>
 239
 240     <sect2 xml:id="userland-installer">
 241       <title>Installation and Configuration Tools</title>
 242
 243       <para>&nbsp;</para>
 244     </sect2>
 245
 246     <sect2 xml:id="userland-rc">
 247       <title><filename class="directory">/etc/rc.d</filename>
 248         Scripts</title>
 249
 250       <para>&nbsp;</para>
 251     </sect2>
 252
 253     <sect2 xml:id="userland-periodic">
 254       <title><filename class="directory">/etc/periodic</filename>
 255         Scripts</title>
 256
 257       <para>&nbsp;</para>
 258     </sect2>
 259
 260     <sect2 xml:id="userland-libraries">
 261       <title>Runtime Libraries and API</title>
 262
 263       <para revision="275040">A new file configuration library,
 264         &man.figpar.3;, has been added to the base system.</para>
 265
 266       <para revision="280392">The &man.setmode.3; function has been
 267         updated to consistently set <literal>errno</literal> on
 268         failure.</para>
 269     </sect2>
 270
 271     <sect2 xml:id="userland-abi">
 272       <title>ABI Compatibility</title>
 273
 274       <para>&nbsp;</para>
 275     </sect2>
 276   </sect1>
 277
 278   <sect1 xml:id="kernel">
 279     <title>Kernel</title>
 280
 281     <para>This section covers changes to kernel configurations, system
 282       tuning, and system control parameters that are not otherwise
 283       categorized.</para>
 284
 285     <sect2 xml:id="kernel-bugfix">
 286       <title>Kernel Bug Fixes</title>
 287
 288       <para>&nbsp;</para>
 289     </sect2>
 290
 291     <sect2 xml:id="kernel-config">
 292       <title>Kernel Configuration</title>
 293
 294       <para>&nbsp;</para>
 295     </sect2>
 296
 297     <sect2 xml:id="kernel-sysctl">
 298       <title>System Tuning and Controls</title>
 299
 300       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 301         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 302         been turned off by default.</para>
 303
 304       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 305         &man.hwpmc.4; default and maximum callchain depths have been
 306         increased.  The default has been increased from 16 to 32, and
 307         the maximum increased from 32 to 128.</para>
 308
 309       <para revision="281255" contrib="sponsor"
 310         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 311         been changed to update timestamps for read/write operations
 312         using seconds precision.  A new &man.sysctl.8;,
 313         <literal>vfs.devfs.dotimes</literal> has been added, which
 314         when set to a non-zero value, enables default precision
 315         timestamps for these operations.</para>
 316
 317       <para revision="280632">The <literal>kern.osrelease</literal>
 318         and <literal>kern.osreldate</literal> are now configurable
 319         &man.jail.8; parameters.</para>
 320     </sect2>
 321   </sect1>
 322
 323   <sect1 xml:id="drivers">
 324     <title>Devices and Drivers</title>
 325
 326     <para>This section covers changes and additions to devices and
 327       device drivers since &release.prev;.</para>
 328
 329     <sect2 xml:id="drivers-device">
 330       <title>Device Drivers</title>
 331
 332       <para revision="282199">The <literal>drm</literal> code has
 333         been updated to match &linux; version 3.8.13.</para>
 334     </sect2>
 335
 336     <sect2 xml:id="drivers-storage">
 337       <title>Storage Drivers</title>
 338
 339       <para revision="281957">The &man.hptnr.4; driver has been
 340         updated to version 1.1.1.</para>
 341     </sect2>
 342
 343     <sect2 xml:id="drivers-network">
 344       <title>Network Drivers</title>
 345
 346       <para>&nbsp;</para>
 347     </sect2>
 348   </sect1>
 349
 350   <sect1 xml:id="hardware">
 351     <title>Hardware Support</title>
 352
 353     <para>This section covers general hardware support for physical
 354       machines, hypervisors, and virtualization environments, as well
 355       as hardware changes and updates that do not otherwise fit in
 356       other sections of this document.</para>
 357
 358     <sect2 xml:id="hardware-support">
 359       <title>Hardware Support</title>
 360
 361       <para>&nbsp;</para>
 362     </sect2>
 363
 364     <sect2 xml:id="hardware-virtualization">
 365       <title>Virtualization Support</title>
 366
 367       <para revision="280370">The &man.bhyve.8; hypervisor has been
 368         updated to support <literal>DSM TRIM</literal> commands for
 369         virtual <acronym>AHCI</acronym> disks.</para>
 370
 371       <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
 372         Hyper-V&trade; drivers have been updated with several
 373         enhancements:</para>
 374
 375       <itemizedlist>
 376         <listitem>
 377           <para>The &man.hv.vmbus.4; driver now has multi-channel
 378             support.</para>
 379         </listitem>
 380
 381         <listitem>
 382           <para>The &man.hv.storvsc.4; driver now has scatter/gather
 383             support, in addition to performance improvements.</para>
 384         </listitem>
 385
 386         <listitem>
 387           <para>The &man.hv.kvp.4; driver has received several bug
 388             fixes.</para>
 389         </listitem>
 390       </itemizedlist>
 391     </sect2>
 392
 393     <sect2 xml:id="hardware-arm">
 394       <title>ARM Support</title>
 395
 396       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 397         driver has been added, which supports <acronym>CPU</acronym>
 398         frequency and voltage control on the Raspberry Pi
 399         <acronym>SOC</acronym>.</para>
 400     </sect2>
 401   </sect1>
 402
 403   <sect1 xml:id="storage">
 404     <title>Storage</title>
 405
 406     <para>This section covers changes and additions to file systems
 407       and other storage subsystems, both local and networked.</para>
 408
 409     <sect2 xml:id="storage-general">
 410       <title>General Storage</title>
 411
 412       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 413         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 414         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 415         with a new mechanism that works for any port.</para>
 416
 417       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 418         &man.ctld.8; utility has been updated to allow controlling
 419         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 420
 421       <para revision="283223" contrib="sponsor" sponsor="&ff;">The
 422         &man.autofs.5; subsystem has been updated to include a new
 423         &man.auto.master.5; map, <literal>-media</literal>, which
 424         allows automatically mounting removable media, such as
 425         <acronym>CD</acronym> drives or <acronym>USB</acronym> flash
 426         drives.</para>
 427
 428       <para revision="283242" contrib="sponsor" sponsor="&ff;">The
 429         &man.autofs.5; subsystem has been updated to include a new
 430         &man.auto.master.5; map, <literal>-noauto</literal>, which
 431         handles &man.fstab.5; entries set to
 432         <literal>noauto</literal>.</para>
 433     </sect2>
 434
 435     <sect2 xml:id="storage-net">
 436       <title>Networked Storage</title>
 437
 438       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 439         &man.ctld.8; utility has been updated to include support for
 440         registering <acronym>iSCSI</acronym> targets and portals on
 441         <acronym>iSNS</acronym> servers.  This provides a mechanism
 442         which allows <acronym>iSCSI</acronym> initiators to find
 443         targets and portals without requiring active
 444         discovery.</para>
 445     </sect2>
 446
 447     <sect2 xml:id="storage-zfs">
 448       <title>ZFS</title>
 449
 450       <para revision="275490">A new tunable,
 451         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 452         which controls how much space is reserved by default.</para>
 453
 454       <para revision="277583">The <literal>arc_meta_limit</literal>
 455         statistics are now visible through the
 456         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 457         change, the <literal>vfs.zfs.arc_meta_used</literal>
 458         &man.sysctl.8; has been removed, and replaced with the
 459         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 460         &man.sysctl.8;.</para>
 461     </sect2>
 462
 463     <sect2 xml:id="storage-geom">
 464       <title>&man.geom.4;</title>
 465
 466       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 467         &man.ctl.4; subsystem has been updated, increasing the ports
 468         limit from <literal>128</literal> to <literal>256</literal>,
 469         and <acronym>LUN</acronym> limit from <literal>256</literal>
 470         to <literal>1024</literal>.</para>
 471     </sect2>
 472   </sect1>
 473
 474   <sect1 xml:id="boot">
 475     <title>Boot Loader Changes</title>
 476
 477     <para>This section covers the boot loader, boot menu, and other
 478       boot-related changes.</para>
 479
 480     <sect2 xml:id="boot-loader">
 481       <title>Boot Loader Changes</title>
 482
 483       <para revision="281843">The boot loader has been updated to
 484         support entering the <acronym>GELI</acronym> passphrase before
 485         loading the kernel.  To enable this behavior, add
 486         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 487         &man.loader.conf.5;.</para>
 488
 489       <para revision="283262" contrib="sponsor" sponsor="&ff;">The
 490         memory test run at boot time on &os;/&arch.amd64; platforms
 491         has been disabled by default.</para>
 492     </sect2>
 493
 494     <sect2 xml:id="boot-menu">
 495       <title>Boot Menu Changes</title>
 496
 497       <para>&nbsp;</para>
 498     </sect2>
 499   </sect1>
 500
 501   <sect1 xml:id="network">
 502     <title>Networking</title>
 503
 504     <para>This section describes changes that affect networking in
 505       &os;.</para>
 506
 507     <sect2 xml:id="network-protocols">
 508       <title>Network Procols</title>
 509
 510       <para>&nbsp;</para>
 511     </sect2>
 512   </sect1>
 513
 514   <sect1 xml:id="ports">
 515     <title>Ports Collection and Package Infrastructure</title>
 516
 517     <para>This section covers changes to the &os;&nbsp;Ports
 518       Collection, package infrastructure, and package maintenance and
 519       installation tools.</para>
 520
 521     <sect2 xml:id="ports-infrastructure">
 522       <title>Infrastructure Changes</title>
 523
 524       <para>&nbsp;</para>
 525     </sect2>
 526
 527     <sect2 xml:id="ports-packages ">
 528       <title>Packaging Changes</title>
 529
 530       <para>&nbsp;</para>
 531     </sect2>
 532   </sect1>
 533
 534   <sect1 xml:id="doc">
 535     <title>Documentation</title>
 536
 537     <para>This section covers changes to the &os;&nbsp;Documentation
 538       Project sources and toolchain.</para>
 539
 540     <sect2 xml:id="doc-sources">
 541       <title>Documentation Source Changes</title>
 542
 543       <para>&nbsp;</para>
 544     </sect2>
 545
 546     <sect2 xml:id="doc-toolchain">
 547       <title>Documentation Toolchain Changes</title>
 548
 549       <para>&nbsp;</para>
 550     </sect2>
 551   </sect1>
 552
 553   <sect1 xml:id="releng">
 554     <title>Release Engineering and Integration</title>
 555
 556     <para>This section convers changes that are specific to the
 557       &os;&nbsp;Release Engineering processes.</para>
 558
 559     <sect2 xml:id="releng-changes">
 560       <title>Integration Changes</title>
 561
 562       <para>&nbsp;</para>
 563     </sect2>
 564   </sect1>
 565 </article>