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: 282143 -->
  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     </sect2>
 208
 209     <sect2 xml:id="userland-contrib">
 210       <title>Contributed Software</title>
 211
 212       <para revision="277592"><application>file</application> has been
 213         updated to version 5.22.</para>
 214
 215       <para revision="280304"><application>OpenSSL</application> has
 216         been updated to version 1.0.1m.</para>
 217
 218       <para revision="281687">The &man.acpi.4; subsystem has been
 219         updated to version 20150410.</para>
 220     </sect2>
 221
 222     <sect2 xml:id="userland-installer">
 223       <title>Installation and Configuration Tools</title>
 224
 225       <para>&nbsp;</para>
 226     </sect2>
 227
 228     <sect2 xml:id="userland-rc">
 229       <title><filename class="directory">/etc/rc.d</filename>
 230         Scripts</title>
 231
 232       <para>&nbsp;</para>
 233     </sect2>
 234
 235     <sect2 xml:id="userland-periodic">
 236       <title><filename class="directory">/etc/periodic</filename>
 237         Scripts</title>
 238
 239       <para>&nbsp;</para>
 240     </sect2>
 241
 242     <sect2 xml:id="userland-libraries">
 243       <title>Runtime Libraries and API</title>
 244
 245       <para revision="275040">A new file configuration library,
 246         &man.figpar.3;, has been added to the base system.</para>
 247
 248       <para revision="280392">The &man.setmode.3; function has been
 249         updated to consistently set <literal>errno</literal> on
 250         failure.</para>
 251     </sect2>
 252
 253     <sect2 xml:id="userland-abi">
 254       <title>ABI Compatibility</title>
 255
 256       <para>&nbsp;</para>
 257     </sect2>
 258   </sect1>
 259
 260   <sect1 xml:id="kernel">
 261     <title>Kernel</title>
 262
 263     <para>This section covers changes to kernel configurations, system
 264       tuning, and system control parameters that are not otherwise
 265       categorized.</para>
 266
 267     <sect2 xml:id="kernel-bugfix">
 268       <title>Kernel Bug Fixes</title>
 269
 270       <para>&nbsp;</para>
 271     </sect2>
 272
 273     <sect2 xml:id="kernel-config">
 274       <title>Kernel Configuration</title>
 275
 276       <para>&nbsp;</para>
 277     </sect2>
 278
 279     <sect2 xml:id="kernel-sysctl">
 280       <title>System Tuning and Controls</title>
 281
 282       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 283         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 284         been turned off by default.</para>
 285
 286       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 287         &man.hwpmc.4; default and maximum callchain depths have been
 288         increased.  The default has been increased from 16 to 32, and
 289         the maximum increased from 32 to 128.</para>
 290
 291       <para revision="281255" contrib="sponsor"
 292         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 293         been changed to update timestamps for read/write operations
 294         using seconds precision.  A new &man.sysctl.8;,
 295         <literal>vfs.devfs.dotimes</literal> has been added, which
 296         when set to a non-zero value, enables default precision
 297         timestamps for these operations.</para>
 298
 299       <para revision="280632">The <literal>kern.osrelease</literal>
 300         and <literal>kern.osreldate</literal> are now configurable
 301         &man.jail.8; parameters.</para>
 302     </sect2>
 303   </sect1>
 304
 305   <sect1 xml:id="drivers">
 306     <title>Devices and Drivers</title>
 307
 308     <para>This section covers changes and additions to devices and
 309       device drivers since &release.prev;.</para>
 310
 311     <sect2 xml:id="drivers-device">
 312       <title>Device Drivers</title>
 313
 314       <para revision="282199">The <literal>drm</literal> code has
 315         been updated to match &linux; version 3.8.13.</para>
 316     </sect2>
 317
 318     <sect2 xml:id="drivers-storage">
 319       <title>Storage Drivers</title>
 320
 321       <para revision="281957">The &man.hptnr.4; driver has been
 322         updated to version 1.1.1.</para>
 323     </sect2>
 324
 325     <sect2 xml:id="drivers-network">
 326       <title>Network Drivers</title>
 327
 328       <para>&nbsp;</para>
 329     </sect2>
 330   </sect1>
 331
 332   <sect1 xml:id="hardware">
 333     <title>Hardware Support</title>
 334
 335     <para>This section covers general hardware support for physical
 336       machines, hypervisors, and virtualization environments, as well
 337       as hardware changes and updates that do not otherwise fit in
 338       other sections of this document.</para>
 339
 340     <sect2 xml:id="hardware-support">
 341       <title>Hardware Support</title>
 342
 343       <para>&nbsp;</para>
 344     </sect2>
 345
 346     <sect2 xml:id="hardware-virtualization">
 347       <title>Virtualization Support</title>
 348
 349       <para revision="280370">The &man.bhyve.8; hypervisor has been
 350         updated to support <literal>DSM TRIM</literal> commands for
 351         virtual <acronym>AHCI</acronym> disks.</para>
 352     </sect2>
 353
 354     <sect2 xml:id="hardware-arm">
 355       <title>ARM Support</title>
 356
 357       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 358         driver has been added, which supports <acronym>CPU</acronym>
 359         frequency and voltage control on the Raspberry Pi
 360         <acronym>SOC</acronym>.</para>
 361     </sect2>
 362   </sect1>
 363
 364   <sect1 xml:id="storage">
 365     <title>Storage</title>
 366
 367     <para>This section covers changes and additions to file systems
 368       and other storage subsystems, both local and networked.</para>
 369
 370     <sect2 xml:id="storage-general">
 371       <title>General Storage</title>
 372
 373       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 374         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 375         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 376         with a new mechanism that works for any port.</para>
 377
 378       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 379         &man.ctld.8; utility has been updated to allow controlling
 380         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 381     </sect2>
 382
 383     <sect2 xml:id="storage-net">
 384       <title>Networked Storage</title>
 385
 386       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 387         &man.ctld.8; utility has been updated to include support for
 388         registering <acronym>iSCSI</acronym> targets and portals on
 389         <acronym>iSNS</acronym> servers.  This provides a mechanism
 390         which allows <acronym>iSCSI</acronym> initiators to find
 391         targets and portals without requiring active
 392         discovery.</para>
 393     </sect2>
 394
 395     <sect2 xml:id="storage-zfs">
 396       <title>ZFS</title>
 397
 398       <para revision="275490">A new tunable,
 399         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 400         which controls how much space is reserved by default.</para>
 401
 402       <para revision="277583">The <literal>arc_meta_limit</literal>
 403         statistics are now visible through the
 404         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 405         change, the <literal>vfs.zfs.arc_meta_used</literal>
 406         &man.sysctl.8; has been removed, and replaced with the
 407         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 408         &man.sysctl.8;.</para>
 409     </sect2>
 410
 411     <sect2 xml:id="storage-geom">
 412       <title>&man.geom.4;</title>
 413
 414       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 415         &man.ctl.4; subsystem has been updated, increasing the ports
 416         limit from <literal>128</literal> to <literal>256</literal>,
 417         and <acronym>LUN</acronym> limit from <literal>256</literal>
 418         to <literal>1024</literal>.</para>
 419     </sect2>
 420   </sect1>
 421
 422   <sect1 xml:id="boot">
 423     <title>Boot Loader Changes</title>
 424
 425     <para>This section covers the boot loader, boot menu, and other
 426       boot-related changes.</para>
 427
 428     <sect2 xml:id="boot-loader">
 429       <title>Boot Loader Changes</title>
 430
 431       <para revision="281843">The boot loader has been updated to
 432         support entering the <acronym>GELI</acronym> passphrase before
 433         loading the kernel.  To enable this behavior, add
 434         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 435         &man.loader.conf.5;.</para>
 436     </sect2>
 437
 438     <sect2 xml:id="boot-menu">
 439       <title>Boot Menu Changes</title>
 440
 441       <para>&nbsp;</para>
 442     </sect2>
 443   </sect1>
 444
 445   <sect1 xml:id="network">
 446     <title>Networking</title>
 447
 448     <para>This section describes changes that affect networking in
 449       &os;.</para>
 450
 451     <sect2 xml:id="network-protocols">
 452       <title>Network Procols</title>
 453
 454       <para>&nbsp;</para>
 455     </sect2>
 456   </sect1>
 457
 458   <sect1 xml:id="ports">
 459     <title>Ports Collection and Package Infrastructure</title>
 460
 461     <para>This section covers changes to the &os;&nbsp;Ports
 462       Collection, package infrastructure, and package maintenance and
 463       installation tools.</para>
 464
 465     <sect2 xml:id="ports-infrastructure">
 466       <title>Infrastructure Changes</title>
 467
 468       <para>&nbsp;</para>
 469     </sect2>
 470
 471     <sect2 xml:id="ports-packages ">
 472       <title>Packaging Changes</title>
 473
 474       <para>&nbsp;</para>
 475     </sect2>
 476   </sect1>
 477
 478   <sect1 xml:id="doc">
 479     <title>Documentation</title>
 480
 481     <para>This section covers changes to the &os;&nbsp;Documentation
 482       Project sources and toolchain.</para>
 483
 484     <sect2 xml:id="doc-sources">
 485       <title>Documentation Source Changes</title>
 486
 487       <para>&nbsp;</para>
 488     </sect2>
 489
 490     <sect2 xml:id="doc-toolchain">
 491       <title>Documentation Toolchain Changes</title>
 492
 493       <para>&nbsp;</para>
 494     </sect2>
 495   </sect1>
 496
 497   <sect1 xml:id="releng">
 498     <title>Release Engineering and Integration</title>
 499
 500     <para>This section convers changes that are specific to the
 501       &os;&nbsp;Release Engineering processes.</para>
 502
 503     <sect2 xml:id="releng-changes">
 504       <title>Integration Changes</title>
 505
 506       <para>&nbsp;</para>
 507     </sect2>
 508   </sect1>
 509 </article>