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