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
 226       <para revision="283258">The &man.date.1; utility has been
 227         updated to print the modification time of the file passed as
 228         an argument to the <literal>-r</literal> flag, improving
 229         compatibility with the <acronym>GNU</acronym> &man.date.1;
 230         utility behavior.</para>
 231     </sect2>
 232
 233     <sect2 xml:id="userland-contrib">
 234       <title>Contributed Software</title>
 235
 236       <para revision="282746" contrib="sponsor" sponsor="&ff;">The
 237         &man.resolvconf.8; utility has been updated to version
 238         3.7.0.</para>
 239
 240       <para revision="284398">Timezone data files have been updated to
 241         version 2015e.</para>
 242
 243       <para revision="284460">The &man.acpi.4; subsystem has been
 244         updated to version 20150515.</para>
 245
 246       <para revision="284778">The &man.file.1; utility has been
 247         updated to version 5.23.</para>
 248
 249       <para revision="285206">The &man.unbound.8; utility has been
 250         updated to version 1.5.3.</para>
 251
 252       <para revision="285305">The <application>sendmail</application>
 253         utility has been updated to version 8.15.2.</para>
 254
 255       <para revision="285330"><application>OpenSSL</application> has
 256         been updated to version 1.0.1p.</para>
 257     </sect2>
 258
 259     <sect2 xml:id="userland-installer">
 260       <title>Installation and Configuration Tools</title>
 261
 262       <para>&nbsp;</para>
 263     </sect2>
 264
 265     <sect2 xml:id="userland-rc">
 266       <title><filename class="directory">/etc/rc.d</filename>
 267         Scripts</title>
 268
 269       <para>&nbsp;</para>
 270     </sect2>
 271
 272     <sect2 xml:id="userland-periodic">
 273       <title><filename class="directory">/etc/periodic</filename>
 274         Scripts</title>
 275
 276       <para>&nbsp;</para>
 277     </sect2>
 278
 279     <sect2 xml:id="userland-libraries">
 280       <title>Runtime Libraries and API</title>
 281
 282       <para revision="275040">A new file configuration library,
 283         &man.figpar.3;, has been added to the base system.</para>
 284
 285       <para revision="280392">The &man.setmode.3; function has been
 286         updated to consistently set <literal>errno</literal> on
 287         failure.</para>
 288     </sect2>
 289
 290     <sect2 xml:id="userland-abi">
 291       <title>ABI Compatibility</title>
 292
 293       <para>&nbsp;</para>
 294     </sect2>
 295   </sect1>
 296
 297   <sect1 xml:id="kernel">
 298     <title>Kernel</title>
 299
 300     <para>This section covers changes to kernel configurations, system
 301       tuning, and system control parameters that are not otherwise
 302       categorized.</para>
 303
 304     <sect2 xml:id="kernel-bugfix">
 305       <title>Kernel Bug Fixes</title>
 306
 307       <para>&nbsp;</para>
 308     </sect2>
 309
 310     <sect2 xml:id="kernel-config">
 311       <title>Kernel Configuration</title>
 312
 313       <para revision="284522" contrib="sponsor"
 314         sponsor="&limelight;">A new kernel configuration option,
 315         <literal>EM_MULTIQUEUE</literal>, has been added which enables
 316         multi-queue support in the &man.em.4; driver.</para>
 317
 318       <note>
 319         <para>Multi-queue support in the &man.em.4; driver is not
 320           officially supported by &intel;.</para>
 321       </note>
 322     </sect2>
 323
 324     <sect2 xml:id="kernel-sysctl">
 325       <title>System Tuning and Controls</title>
 326
 327       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 328         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 329         been turned off by default.</para>
 330
 331       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 332         &man.hwpmc.4; default and maximum callchain depths have been
 333         increased.  The default has been increased from 16 to 32, and
 334         the maximum increased from 32 to 128.</para>
 335
 336       <para revision="281255" contrib="sponsor"
 337         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 338         been changed to update timestamps for read/write operations
 339         using seconds precision.  A new &man.sysctl.8;,
 340         <literal>vfs.devfs.dotimes</literal> has been added, which
 341         when set to a non-zero value, enables default precision
 342         timestamps for these operations.</para>
 343
 344       <para revision="280632">The <literal>kern.osrelease</literal>
 345         and <literal>kern.osreldate</literal> are now configurable
 346         &man.jail.8; parameters.</para>
 347
 348       <para revision="284665" contrib="sponsor" sponsor="&ff;">A new
 349         &man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
 350         added, which when set to a non-zero value allows using
 351         &man.rctl.8; with the <literal>GENERIC</literal> kernel.
 352         A new kernel configuration option,
 353         <literal>RACCT_DISABLED</literal> has also been added.</para>
 354
 355       <para revision="284665" contrib="sponsor" sponsor="&ff;">The
 356         <literal>GENERIC</literal> kernel configuration now includes
 357         <literal>RACCT</literal> and <literal>RCTL</literal> by
 358         default.</para>
 359
 360       <note>
 361         <para>To enable <literal>RACCT</literal> and
 362           <literal>RCTL</literal> on a system using the
 363           <literal>GENERIC</literal> kernel configuration, add
 364           <literal>kern.racct.enable=1</literal> to
 365           &man.loader.conf.5;, and reboot the system.</para>
 366       </note>
 367     </sect2>
 368   </sect1>
 369
 370   <sect1 xml:id="drivers">
 371     <title>Devices and Drivers</title>
 372
 373     <para>This section covers changes and additions to devices and
 374       device drivers since &release.prev;.</para>
 375
 376     <sect2 xml:id="drivers-device">
 377       <title>Device Drivers</title>
 378
 379       <para revision="282199">The <literal>drm</literal> code has
 380         been updated to match &linux; version 3.8.13.</para>
 381     </sect2>
 382
 383     <sect2 xml:id="drivers-storage">
 384       <title>Storage Drivers</title>
 385
 386       <para revision="281957">The &man.hptnr.4; driver has been
 387         updated to version 1.1.1.</para>
 388     </sect2>
 389
 390     <sect2 xml:id="drivers-network">
 391       <title>Network Drivers</title>
 392
 393       <para>&nbsp;</para>
 394     </sect2>
 395   </sect1>
 396
 397   <sect1 xml:id="hardware">
 398     <title>Hardware Support</title>
 399
 400     <para>This section covers general hardware support for physical
 401       machines, hypervisors, and virtualization environments, as well
 402       as hardware changes and updates that do not otherwise fit in
 403       other sections of this document.</para>
 404
 405     <sect2 xml:id="hardware-support">
 406       <title>Hardware Support</title>
 407
 408       <para>&nbsp;</para>
 409     </sect2>
 410
 411     <sect2 xml:id="hardware-virtualization">
 412       <title>Virtualization Support</title>
 413
 414       <para revision="280370">The &man.bhyve.8; hypervisor has been
 415         updated to support <literal>DSM TRIM</literal> commands for
 416         virtual <acronym>AHCI</acronym> disks.</para>
 417
 418       <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
 419         Hyper-V&trade; drivers have been updated with several
 420         enhancements:</para>
 421
 422       <itemizedlist>
 423         <listitem>
 424           <para>The &man.hv.vmbus.4; driver now has multi-channel
 425             support.</para>
 426         </listitem>
 427
 428         <listitem>
 429           <para>The &man.hv.storvsc.4; driver now has scatter/gather
 430             support, in addition to performance improvements.</para>
 431         </listitem>
 432
 433         <listitem>
 434           <para>The &man.hv.kvp.4; driver has received several bug
 435             fixes.</para>
 436         </listitem>
 437       </itemizedlist>
 438
 439       <para revision="285236" contrib="sponsor" sponsor="&msostc;">The
 440         &man.hv.netvsc.4; driver has been updated to support checksum
 441         offloading and <acronym>TSO</acronym>.</para>
 442     </sect2>
 443
 444     <sect2 xml:id="hardware-arm">
 445       <title>ARM Support</title>
 446
 447       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 448         driver has been added, which supports <acronym>CPU</acronym>
 449         frequency and voltage control on the Raspberry Pi
 450         <acronym>SOC</acronym>.</para>
 451     </sect2>
 452   </sect1>
 453
 454   <sect1 xml:id="storage">
 455     <title>Storage</title>
 456
 457     <para>This section covers changes and additions to file systems
 458       and other storage subsystems, both local and networked.</para>
 459
 460     <sect2 xml:id="storage-general">
 461       <title>General Storage</title>
 462
 463       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 464         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 465         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 466         with a new mechanism that works for any port.</para>
 467
 468       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 469         &man.ctld.8; utility has been updated to allow controlling
 470         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 471
 472       <para revision="283223" contrib="sponsor" sponsor="&ff;">The
 473         &man.autofs.5; subsystem has been updated to include a new
 474         &man.auto.master.5; map, <literal>-media</literal>, which
 475         allows automatically mounting removable media, such as
 476         <acronym>CD</acronym> drives or <acronym>USB</acronym> flash
 477         drives.</para>
 478
 479       <para revision="283242" contrib="sponsor" sponsor="&ff;">The
 480         &man.autofs.5; subsystem has been updated to include a new
 481         &man.auto.master.5; map, <literal>-noauto</literal>, which
 482         handles &man.fstab.5; entries set to
 483         <literal>noauto</literal>.</para>
 484     </sect2>
 485
 486     <sect2 xml:id="storage-net">
 487       <title>Networked Storage</title>
 488
 489       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 490         &man.ctld.8; utility has been updated to include support for
 491         registering <acronym>iSCSI</acronym> targets and portals on
 492         <acronym>iSNS</acronym> servers.  This provides a mechanism
 493         which allows <acronym>iSCSI</acronym> initiators to find
 494         targets and portals without requiring active
 495         discovery.</para>
 496     </sect2>
 497
 498     <sect2 xml:id="storage-zfs">
 499       <title>ZFS</title>
 500
 501       <para revision="275490">A new tunable,
 502         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 503         which controls how much space is reserved by default.</para>
 504
 505       <para revision="277583">The <literal>arc_meta_limit</literal>
 506         statistics are now visible through the
 507         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 508         change, the <literal>vfs.zfs.arc_meta_used</literal>
 509         &man.sysctl.8; has been removed, and replaced with the
 510         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 511         &man.sysctl.8;.</para>
 512     </sect2>
 513
 514     <sect2 xml:id="storage-geom">
 515       <title>&man.geom.4;</title>
 516
 517       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 518         &man.ctl.4; subsystem has been updated, increasing the ports
 519         limit from <literal>128</literal> to <literal>256</literal>,
 520         and <acronym>LUN</acronym> limit from <literal>256</literal>
 521         to <literal>1024</literal>.</para>
 522     </sect2>
 523   </sect1>
 524
 525   <sect1 xml:id="boot">
 526     <title>Boot Loader Changes</title>
 527
 528     <para>This section covers the boot loader, boot menu, and other
 529       boot-related changes.</para>
 530
 531     <sect2 xml:id="boot-loader">
 532       <title>Boot Loader Changes</title>
 533
 534       <para revision="281843">The boot loader has been updated to
 535         support entering the <acronym>GELI</acronym> passphrase before
 536         loading the kernel.  To enable this behavior, add
 537         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 538         &man.loader.conf.5;.</para>
 539
 540       <para revision="283262" contrib="sponsor" sponsor="&ff;">The
 541         memory test run at boot time on &os;/&arch.amd64; platforms
 542         has been disabled by default.</para>
 543     </sect2>
 544
 545     <sect2 xml:id="boot-menu">
 546       <title>Boot Menu Changes</title>
 547
 548       <para>&nbsp;</para>
 549     </sect2>
 550   </sect1>
 551
 552   <sect1 xml:id="network">
 553     <title>Networking</title>
 554
 555     <para>This section describes changes that affect networking in
 556       &os;.</para>
 557
 558     <sect2 xml:id="network-protocols">
 559       <title>Network Procols</title>
 560
 561       <para>&nbsp;</para>
 562     </sect2>
 563   </sect1>
 564
 565   <sect1 xml:id="ports">
 566     <title>Ports Collection and Package Infrastructure</title>
 567
 568     <para>This section covers changes to the &os;&nbsp;Ports
 569       Collection, package infrastructure, and package maintenance and
 570       installation tools.</para>
 571
 572     <sect2 xml:id="ports-infrastructure">
 573       <title>Infrastructure Changes</title>
 574
 575       <para>&nbsp;</para>
 576     </sect2>
 577
 578     <sect2 xml:id="ports-packages ">
 579       <title>Packaging Changes</title>
 580
 581       <para>&nbsp;</para>
 582     </sect2>
 583   </sect1>
 584
 585   <sect1 xml:id="doc">
 586     <title>Documentation</title>
 587
 588     <para>This section covers changes to the &os;&nbsp;Documentation
 589       Project sources and toolchain.</para>
 590
 591     <sect2 xml:id="doc-sources">
 592       <title>Documentation Source Changes</title>
 593
 594       <para>&nbsp;</para>
 595     </sect2>
 596
 597     <sect2 xml:id="doc-toolchain">
 598       <title>Documentation Toolchain Changes</title>
 599
 600       <para>&nbsp;</para>
 601     </sect2>
 602   </sect1>
 603
 604   <sect1 xml:id="releng">
 605     <title>Release Engineering and Integration</title>
 606
 607     <para>This section convers changes that are specific to the
 608       &os;&nbsp;Release Engineering processes.</para>
 609
 610     <sect2 xml:id="releng-changes">
 611       <title>Integration Changes</title>
 612
 613       <para>&nbsp;</para>
 614     </sect2>
 615   </sect1>
 616 </article>