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: 279055 -->
  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     </sect2>
 203
 204     <sect2 xml:id="userland-contrib">
 205       <title>Contributed Software</title>
 206
 207       <para revision="280304"><application>OpenSSL</application> has
 208         been updated to version 1.0.1m.</para>
 209
 210       <para revision="281687">The &man.acpi.4; subsystem has been
 211         updated to version 20150410.</para>
 212     </sect2>
 213
 214     <sect2 xml:id="userland-installer">
 215       <title>Installation and Configuration Tools</title>
 216
 217       <para>&nbsp;</para>
 218     </sect2>
 219
 220     <sect2 xml:id="userland-rc">
 221       <title><filename class="directory">/etc/rc.d</filename>
 222         Scripts</title>
 223
 224       <para>&nbsp;</para>
 225     </sect2>
 226
 227     <sect2 xml:id="userland-periodic">
 228       <title><filename class="directory">/etc/periodic</filename>
 229         Scripts</title>
 230
 231       <para>&nbsp;</para>
 232     </sect2>
 233
 234     <sect2 xml:id="userland-libraries">
 235       <title>Runtime Libraries and API</title>
 236
 237       <para revision="275040">A new file configuration library,
 238         &man.figpar.3;, has been added to the base system.</para>
 239
 240       <para revision="280392">The &man.setmode.3; function has been
 241         updated to consistently set <literal>errno</literal> on
 242         failure.</para>
 243     </sect2>
 244
 245     <sect2 xml:id="userland-abi">
 246       <title>ABI Compatibility</title>
 247
 248       <para>&nbsp;</para>
 249     </sect2>
 250   </sect1>
 251
 252   <sect1 xml:id="kernel">
 253     <title>Kernel</title>
 254
 255     <para>This section covers changes to kernel configurations, system
 256       tuning, and system control parameters that are not otherwise
 257       categorized.</para>
 258
 259     <sect2 xml:id="kernel-bugfix">
 260       <title>Kernel Bug Fixes</title>
 261
 262       <para>&nbsp;</para>
 263     </sect2>
 264
 265     <sect2 xml:id="kernel-config">
 266       <title>Kernel Configuration</title>
 267
 268       <para>&nbsp;</para>
 269     </sect2>
 270
 271     <sect2 xml:id="kernel-sysctl">
 272       <title>System Tuning and Controls</title>
 273
 274       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 275         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 276         been turned off by default.</para>
 277
 278       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 279         &man.hwpmc.4; default and maximum callchain depths have been
 280         increased.  The default has been increased from 16 to 32, and
 281         the maximum increased from 32 to 128.</para>
 282     </sect2>
 283   </sect1>
 284
 285   <sect1 xml:id="drivers">
 286     <title>Devices and Drivers</title>
 287
 288     <para>This section covers changes and additions to devices and
 289       device drivers since &release.prev;.</para>
 290
 291     <sect2 xml:id="drivers-device">
 292       <title>Device Drivers</title>
 293
 294       <para>&nbsp;</para>
 295     </sect2>
 296
 297     <sect2 xml:id="drivers-storage">
 298       <title>Storage Drivers</title>
 299
 300       <para revision="281957">The &man.hptnr.4; driver has been
 301         updated to version 1.1.1.</para>
 302     </sect2>
 303
 304     <sect2 xml:id="drivers-network">
 305       <title>Network Drivers</title>
 306
 307       <para>&nbsp;</para>
 308     </sect2>
 309   </sect1>
 310
 311   <sect1 xml:id="hardware">
 312     <title>Hardware Support</title>
 313
 314     <para>This section covers general hardware support for physical
 315       machines, hypervisors, and virtualization environments, as well
 316       as hardware changes and updates that do not otherwise fit in
 317       other sections of this document.</para>
 318
 319     <sect2 xml:id="hardware-support">
 320       <title>Hardware Support</title>
 321
 322       <para>&nbsp;</para>
 323     </sect2>
 324
 325     <sect2 xml:id="hardware-virtualization">
 326       <title>Virtualization Support</title>
 327
 328       <para revision="280370">The &man.bhyve.8; hypervisor has been
 329         updated to support <literal>DSM TRIM</literal> commands for
 330         virtual <acronym>AHCI</acronym> disks.</para>
 331     </sect2>
 332
 333     <sect2 xml:id="hardware-arm">
 334       <title>ARM Support</title>
 335
 336       <para>&nbsp;</para>
 337     </sect2>
 338   </sect1>
 339
 340   <sect1 xml:id="storage">
 341     <title>Storage</title>
 342
 343     <para>This section covers changes and additions to file systems
 344       and other storage subsystems, both local and networked.</para>
 345
 346     <sect2 xml:id="storage-general">
 347       <title>General Storage</title>
 348       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 349         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 350         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 351         with a new mechanism that works for any port.</para>
 352
 353       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 354         &man.ctld.8; utility has been updated to allow controlling
 355         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 356     </sect2>
 357
 358     <sect2 xml:id="storage-net">
 359       <title>Networked Storage</title>
 360
 361       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 362         &man.ctld.8; utility has been updated to include support for
 363         registering <acronym>iSCSI</acronym> targets and portals on
 364         <acronym>iSNS</acronym> servers.  This provides a mechanism
 365         which allows <acronym>iSCSI</acronym> initiators to find
 366         targets and portals without requiring active
 367         discovery.</para>
 368     </sect2>
 369
 370     <sect2 xml:id="storage-zfs">
 371       <title>ZFS</title>
 372
 373       <para revision="275490">A new tunable,
 374         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 375         which controls how much space is reserved by default.</para>
 376
 377       <para revision="277583">The <literal>arc_meta_limit</literal>
 378         statistics are now visible through the
 379         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 380         change, the <literal>vfs.zfs.arc_meta_used</literal>
 381         &man.sysctl.8; has been removed, and replaced with the
 382         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 383         &man.sysctl.8;.</para>
 384     </sect2>
 385
 386     <sect2 xml:id="storage-geom">
 387       <title>&man.geom.4;</title>
 388
 389       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 390         &man.ctl.4; subsystem has been updated, increasing the ports
 391         limit from <literal>128</literal> to <literal>256</literal>,
 392         and <acronym>LUN</acronym> limit from <literal>256</literal>
 393         to <literal>1024</literal>.</para>
 394     </sect2>
 395   </sect1>
 396
 397   <sect1 xml:id="boot">
 398     <title>Boot Loader Changes</title>
 399
 400     <para>This section covers the boot loader, boot menu, and other
 401       boot-related changes.</para>
 402
 403     <sect2 xml:id="boot-loader">
 404       <title>Boot Loader Changes</title>
 405
 406       <para revision="281843">The boot loader has been updated to
 407         support entering the <acronym>GELI</acronym> passphrase before
 408         loading the kernel.  To enable this behavior, add
 409         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 410         &man.loader.conf.5;.</para>
 411     </sect2>
 412
 413     <sect2 xml:id="boot-menu">
 414       <title>Boot Menu Changes</title>
 415
 416       <para>&nbsp;</para>
 417     </sect2>
 418   </sect1>
 419
 420   <sect1 xml:id="network">
 421     <title>Networking</title>
 422
 423     <para>This section describes changes that affect networking in
 424       &os;.</para>
 425
 426     <sect2 xml:id="network-protocols">
 427       <title>Network Procols</title>
 428
 429       <para>&nbsp;</para>
 430     </sect2>
 431   </sect1>
 432
 433   <sect1 xml:id="ports">
 434     <title>Ports Collection and Package Infrastructure</title>
 435
 436     <para>This section covers changes to the &os;&nbsp;Ports
 437       Collection, package infrastructure, and package maintenance and
 438       installation tools.</para>
 439
 440     <sect2 xml:id="ports-infrastructure">
 441       <title>Infrastructure Changes</title>
 442
 443       <para>&nbsp;</para>
 444     </sect2>
 445
 446     <sect2 xml:id="ports-packages ">
 447       <title>Packaging Changes</title>
 448
 449       <para>&nbsp;</para>
 450     </sect2>
 451   </sect1>
 452
 453   <sect1 xml:id="doc">
 454     <title>Documentation</title>
 455
 456     <para>This section covers changes to the &os;&nbsp;Documentation
 457       Project sources and toolchain.</para>
 458
 459     <sect2 xml:id="doc-sources">
 460       <title>Documentation Source Changes</title>
 461
 462       <para>&nbsp;</para>
 463     </sect2>
 464
 465     <sect2 xml:id="doc-toolchain">
 466       <title>Documentation Toolchain Changes</title>
 467
 468       <para>&nbsp;</para>
 469     </sect2>
 470   </sect1>
 471
 472   <sect1 xml:id="releng">
 473     <title>Release Engineering and Integration</title>
 474
 475     <para>This section convers changes that are specific to the
 476       &os;&nbsp;Release Engineering processes.</para>
 477
 478     <sect2 xml:id="releng-changes">
 479       <title>Integration Changes</title>
 480
 481       <para>&nbsp;</para>
 482     </sect2>
 483   </sect1>
 484 </article>