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