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: 284813 -->
  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
 222       <para revision="285092">The &man.pw.8; utility has been updated
 223         with a new flag, <literal>-R</literal>, that sets the root
 224         directory within which the utility will operate.</para>
 225     </sect2>
 226
 227     <sect2 xml:id="userland-contrib">
 228       <title>Contributed Software</title>
 229
 230       <para revision="277592"><application>file</application> has been
 231         updated to version 5.22.</para>
 232
 233       <para revision="282746" contrib="sponsor" sponsor="&ff;">The
 234         &man.resolvconf.8; utility has been updated to version
 235         3.7.0.</para>
 236
 237       <para revision="284460">The &man.acpi.4; subsystem has been
 238         updated to version 20150515.</para>
 239
 240       <para revision="284778">The &man.file.1; utility has been
 241         updated to version 5.23.</para>
 242
 243       <para revision="285206">The &man.unbound.8; utility has been
 244         updated to version 1.5.3.</para>
 245
 246       <para revision="285305">The <application>sendmail</application>
 247         utility has been updated to version 8.15.2.</para>
 248
 249       <para revision="285330"><application>OpenSSL</application> has
 250         been updated to version 1.0.1p.</para>
 251     </sect2>
 252
 253     <sect2 xml:id="userland-installer">
 254       <title>Installation and Configuration Tools</title>
 255
 256       <para>&nbsp;</para>
 257     </sect2>
 258
 259     <sect2 xml:id="userland-rc">
 260       <title><filename class="directory">/etc/rc.d</filename>
 261         Scripts</title>
 262
 263       <para>&nbsp;</para>
 264     </sect2>
 265
 266     <sect2 xml:id="userland-periodic">
 267       <title><filename class="directory">/etc/periodic</filename>
 268         Scripts</title>
 269
 270       <para>&nbsp;</para>
 271     </sect2>
 272
 273     <sect2 xml:id="userland-libraries">
 274       <title>Runtime Libraries and API</title>
 275
 276       <para revision="275040">A new file configuration library,
 277         &man.figpar.3;, has been added to the base system.</para>
 278
 279       <para revision="280392">The &man.setmode.3; function has been
 280         updated to consistently set <literal>errno</literal> on
 281         failure.</para>
 282     </sect2>
 283
 284     <sect2 xml:id="userland-abi">
 285       <title>ABI Compatibility</title>
 286
 287       <para>&nbsp;</para>
 288     </sect2>
 289   </sect1>
 290
 291   <sect1 xml:id="kernel">
 292     <title>Kernel</title>
 293
 294     <para>This section covers changes to kernel configurations, system
 295       tuning, and system control parameters that are not otherwise
 296       categorized.</para>
 297
 298     <sect2 xml:id="kernel-bugfix">
 299       <title>Kernel Bug Fixes</title>
 300
 301       <para>&nbsp;</para>
 302     </sect2>
 303
 304     <sect2 xml:id="kernel-config">
 305       <title>Kernel Configuration</title>
 306
 307       <para revision="284522" contrib="sponsor"
 308         sponsor="&limelight;">A new kernel configuration option,
 309         <literal>EM_MULTIQUEUE</literal>, has been added which enables
 310         multi-queue support in the &man.em.4; driver.</para>
 311
 312       <note>
 313         <para>Multi-queue support in the &man.em.4; driver is not
 314           officially supported by &intel;.</para>
 315       </note>
 316     </sect2>
 317
 318     <sect2 xml:id="kernel-sysctl">
 319       <title>System Tuning and Controls</title>
 320
 321       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 322         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 323         been turned off by default.</para>
 324
 325       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 326         &man.hwpmc.4; default and maximum callchain depths have been
 327         increased.  The default has been increased from 16 to 32, and
 328         the maximum increased from 32 to 128.</para>
 329
 330       <para revision="281255" contrib="sponsor"
 331         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 332         been changed to update timestamps for read/write operations
 333         using seconds precision.  A new &man.sysctl.8;,
 334         <literal>vfs.devfs.dotimes</literal> has been added, which
 335         when set to a non-zero value, enables default precision
 336         timestamps for these operations.</para>
 337
 338       <para revision="280632">The <literal>kern.osrelease</literal>
 339         and <literal>kern.osreldate</literal> are now configurable
 340         &man.jail.8; parameters.</para>
 341
 342       <para revision="284665" contrib="sponsor" sponsor="&ff;">A new
 343         &man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
 344         added, which when set to a non-zero value allows using
 345         &man.rctl.8; with the <literal>GENERIC</literal> kernel.
 346         A new kernel configuration option,
 347         <literal>RACCT_DISABLED</literal> has also been added.</para>
 348
 349       <para revision="284665" contrib="sponsor" sponsor="&ff;">The
 350         <literal>GENERIC</literal> kernel configuration now includes
 351         <literal>RACCT</literal> and <literal>RCTL</literal> by
 352         default.</para>
 353
 354       <note>
 355         <para>To enable <literal>RACCT</literal> and
 356           <literal>RCTL</literal> on a system using the
 357           <literal>GENERIC</literal> kernel configuration, add
 358           <literal>kern.racct.enable=1</literal> to
 359           &man.loader.conf.5;, and reboot the system.</para>
 360       </note>
 361     </sect2>
 362   </sect1>
 363
 364   <sect1 xml:id="drivers">
 365     <title>Devices and Drivers</title>
 366
 367     <para>This section covers changes and additions to devices and
 368       device drivers since &release.prev;.</para>
 369
 370     <sect2 xml:id="drivers-device">
 371       <title>Device Drivers</title>
 372
 373       <para revision="282199">The <literal>drm</literal> code has
 374         been updated to match &linux; version 3.8.13.</para>
 375     </sect2>
 376
 377     <sect2 xml:id="drivers-storage">
 378       <title>Storage Drivers</title>
 379
 380       <para revision="281957">The &man.hptnr.4; driver has been
 381         updated to version 1.1.1.</para>
 382     </sect2>
 383
 384     <sect2 xml:id="drivers-network">
 385       <title>Network Drivers</title>
 386
 387       <para>&nbsp;</para>
 388     </sect2>
 389   </sect1>
 390
 391   <sect1 xml:id="hardware">
 392     <title>Hardware Support</title>
 393
 394     <para>This section covers general hardware support for physical
 395       machines, hypervisors, and virtualization environments, as well
 396       as hardware changes and updates that do not otherwise fit in
 397       other sections of this document.</para>
 398
 399     <sect2 xml:id="hardware-support">
 400       <title>Hardware Support</title>
 401
 402       <para>&nbsp;</para>
 403     </sect2>
 404
 405     <sect2 xml:id="hardware-virtualization">
 406       <title>Virtualization Support</title>
 407
 408       <para revision="280370">The &man.bhyve.8; hypervisor has been
 409         updated to support <literal>DSM TRIM</literal> commands for
 410         virtual <acronym>AHCI</acronym> disks.</para>
 411
 412       <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
 413         Hyper-V&trade; drivers have been updated with several
 414         enhancements:</para>
 415
 416       <itemizedlist>
 417         <listitem>
 418           <para>The &man.hv.vmbus.4; driver now has multi-channel
 419             support.</para>
 420         </listitem>
 421
 422         <listitem>
 423           <para>The &man.hv.storvsc.4; driver now has scatter/gather
 424             support, in addition to performance improvements.</para>
 425         </listitem>
 426
 427         <listitem>
 428           <para>The &man.hv.kvp.4; driver has received several bug
 429             fixes.</para>
 430         </listitem>
 431       </itemizedlist>
 432
 433       <para revision="285236" contrib="sponsor" sponsor="&msostc;">The
 434         &man.hv.netvsc.4; driver has been updated to support checksum
 435         offloading and <acronym>TSO</acronym>.</para>
 436     </sect2>
 437
 438     <sect2 xml:id="hardware-arm">
 439       <title>ARM Support</title>
 440
 441       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 442         driver has been added, which supports <acronym>CPU</acronym>
 443         frequency and voltage control on the Raspberry Pi
 444         <acronym>SOC</acronym>.</para>
 445     </sect2>
 446   </sect1>
 447
 448   <sect1 xml:id="storage">
 449     <title>Storage</title>
 450
 451     <para>This section covers changes and additions to file systems
 452       and other storage subsystems, both local and networked.</para>
 453
 454     <sect2 xml:id="storage-general">
 455       <title>General Storage</title>
 456
 457       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 458         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 459         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 460         with a new mechanism that works for any port.</para>
 461
 462       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 463         &man.ctld.8; utility has been updated to allow controlling
 464         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 465
 466       <para revision="283223" contrib="sponsor" sponsor="&ff;">The
 467         &man.autofs.5; subsystem has been updated to include a new
 468         &man.auto.master.5; map, <literal>-media</literal>, which
 469         allows automatically mounting removable media, such as
 470         <acronym>CD</acronym> drives or <acronym>USB</acronym> flash
 471         drives.</para>
 472
 473       <para revision="283242" contrib="sponsor" sponsor="&ff;">The
 474         &man.autofs.5; subsystem has been updated to include a new
 475         &man.auto.master.5; map, <literal>-noauto</literal>, which
 476         handles &man.fstab.5; entries set to
 477         <literal>noauto</literal>.</para>
 478     </sect2>
 479
 480     <sect2 xml:id="storage-net">
 481       <title>Networked Storage</title>
 482
 483       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 484         &man.ctld.8; utility has been updated to include support for
 485         registering <acronym>iSCSI</acronym> targets and portals on
 486         <acronym>iSNS</acronym> servers.  This provides a mechanism
 487         which allows <acronym>iSCSI</acronym> initiators to find
 488         targets and portals without requiring active
 489         discovery.</para>
 490     </sect2>
 491
 492     <sect2 xml:id="storage-zfs">
 493       <title>ZFS</title>
 494
 495       <para revision="275490">A new tunable,
 496         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 497         which controls how much space is reserved by default.</para>
 498
 499       <para revision="277583">The <literal>arc_meta_limit</literal>
 500         statistics are now visible through the
 501         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 502         change, the <literal>vfs.zfs.arc_meta_used</literal>
 503         &man.sysctl.8; has been removed, and replaced with the
 504         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 505         &man.sysctl.8;.</para>
 506     </sect2>
 507
 508     <sect2 xml:id="storage-geom">
 509       <title>&man.geom.4;</title>
 510
 511       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 512         &man.ctl.4; subsystem has been updated, increasing the ports
 513         limit from <literal>128</literal> to <literal>256</literal>,
 514         and <acronym>LUN</acronym> limit from <literal>256</literal>
 515         to <literal>1024</literal>.</para>
 516     </sect2>
 517   </sect1>
 518
 519   <sect1 xml:id="boot">
 520     <title>Boot Loader Changes</title>
 521
 522     <para>This section covers the boot loader, boot menu, and other
 523       boot-related changes.</para>
 524
 525     <sect2 xml:id="boot-loader">
 526       <title>Boot Loader Changes</title>
 527
 528       <para revision="281843">The boot loader has been updated to
 529         support entering the <acronym>GELI</acronym> passphrase before
 530         loading the kernel.  To enable this behavior, add
 531         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 532         &man.loader.conf.5;.</para>
 533
 534       <para revision="283262" contrib="sponsor" sponsor="&ff;">The
 535         memory test run at boot time on &os;/&arch.amd64; platforms
 536         has been disabled by default.</para>
 537     </sect2>
 538
 539     <sect2 xml:id="boot-menu">
 540       <title>Boot Menu Changes</title>
 541
 542       <para>&nbsp;</para>
 543     </sect2>
 544   </sect1>
 545
 546   <sect1 xml:id="network">
 547     <title>Networking</title>
 548
 549     <para>This section describes changes that affect networking in
 550       &os;.</para>
 551
 552     <sect2 xml:id="network-protocols">
 553       <title>Network Procols</title>
 554
 555       <para>&nbsp;</para>
 556     </sect2>
 557   </sect1>
 558
 559   <sect1 xml:id="ports">
 560     <title>Ports Collection and Package Infrastructure</title>
 561
 562     <para>This section covers changes to the &os;&nbsp;Ports
 563       Collection, package infrastructure, and package maintenance and
 564       installation tools.</para>
 565
 566     <sect2 xml:id="ports-infrastructure">
 567       <title>Infrastructure Changes</title>
 568
 569       <para>&nbsp;</para>
 570     </sect2>
 571
 572     <sect2 xml:id="ports-packages ">
 573       <title>Packaging Changes</title>
 574
 575       <para>&nbsp;</para>
 576     </sect2>
 577   </sect1>
 578
 579   <sect1 xml:id="doc">
 580     <title>Documentation</title>
 581
 582     <para>This section covers changes to the &os;&nbsp;Documentation
 583       Project sources and toolchain.</para>
 584
 585     <sect2 xml:id="doc-sources">
 586       <title>Documentation Source Changes</title>
 587
 588       <para>&nbsp;</para>
 589     </sect2>
 590
 591     <sect2 xml:id="doc-toolchain">
 592       <title>Documentation Toolchain Changes</title>
 593
 594       <para>&nbsp;</para>
 595     </sect2>
 596   </sect1>
 597
 598   <sect1 xml:id="releng">
 599     <title>Release Engineering and Integration</title>
 600
 601     <para>This section convers changes that are specific to the
 602       &os;&nbsp;Release Engineering processes.</para>
 603
 604     <sect2 xml:id="releng-changes">
 605       <title>Integration Changes</title>
 606
 607       <para>&nbsp;</para>
 608     </sect2>
 609   </sect1>
 610 </article>