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: 282497 -->
  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     </sect2>
 213
 214     <sect2 xml:id="userland-contrib">
 215       <title>Contributed Software</title>
 216
 217       <para revision="277592"><application>file</application> has been
 218         updated to version 5.22.</para>
 219
 220       <para revision="280304"><application>OpenSSL</application> has
 221         been updated to version 1.0.1m.</para>
 222
 223       <para revision="281687">The &man.acpi.4; subsystem has been
 224         updated to version 20150410.</para>
 225
 226       <para revision="282746" contrib="sponsor" sponsor="&ff;">The
 227         &man.resolvconf.8; utility has been updated to version
 228         3.7.0.</para>
 229     </sect2>
 230
 231     <sect2 xml:id="userland-installer">
 232       <title>Installation and Configuration Tools</title>
 233
 234       <para>&nbsp;</para>
 235     </sect2>
 236
 237     <sect2 xml:id="userland-rc">
 238       <title><filename class="directory">/etc/rc.d</filename>
 239         Scripts</title>
 240
 241       <para>&nbsp;</para>
 242     </sect2>
 243
 244     <sect2 xml:id="userland-periodic">
 245       <title><filename class="directory">/etc/periodic</filename>
 246         Scripts</title>
 247
 248       <para>&nbsp;</para>
 249     </sect2>
 250
 251     <sect2 xml:id="userland-libraries">
 252       <title>Runtime Libraries and API</title>
 253
 254       <para revision="275040">A new file configuration library,
 255         &man.figpar.3;, has been added to the base system.</para>
 256
 257       <para revision="280392">The &man.setmode.3; function has been
 258         updated to consistently set <literal>errno</literal> on
 259         failure.</para>
 260     </sect2>
 261
 262     <sect2 xml:id="userland-abi">
 263       <title>ABI Compatibility</title>
 264
 265       <para>&nbsp;</para>
 266     </sect2>
 267   </sect1>
 268
 269   <sect1 xml:id="kernel">
 270     <title>Kernel</title>
 271
 272     <para>This section covers changes to kernel configurations, system
 273       tuning, and system control parameters that are not otherwise
 274       categorized.</para>
 275
 276     <sect2 xml:id="kernel-bugfix">
 277       <title>Kernel Bug Fixes</title>
 278
 279       <para>&nbsp;</para>
 280     </sect2>
 281
 282     <sect2 xml:id="kernel-config">
 283       <title>Kernel Configuration</title>
 284
 285       <para>&nbsp;</para>
 286     </sect2>
 287
 288     <sect2 xml:id="kernel-sysctl">
 289       <title>System Tuning and Controls</title>
 290
 291       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 292         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 293         been turned off by default.</para>
 294
 295       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 296         &man.hwpmc.4; default and maximum callchain depths have been
 297         increased.  The default has been increased from 16 to 32, and
 298         the maximum increased from 32 to 128.</para>
 299
 300       <para revision="281255" contrib="sponsor"
 301         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 302         been changed to update timestamps for read/write operations
 303         using seconds precision.  A new &man.sysctl.8;,
 304         <literal>vfs.devfs.dotimes</literal> has been added, which
 305         when set to a non-zero value, enables default precision
 306         timestamps for these operations.</para>
 307
 308       <para revision="280632">The <literal>kern.osrelease</literal>
 309         and <literal>kern.osreldate</literal> are now configurable
 310         &man.jail.8; parameters.</para>
 311     </sect2>
 312   </sect1>
 313
 314   <sect1 xml:id="drivers">
 315     <title>Devices and Drivers</title>
 316
 317     <para>This section covers changes and additions to devices and
 318       device drivers since &release.prev;.</para>
 319
 320     <sect2 xml:id="drivers-device">
 321       <title>Device Drivers</title>
 322
 323       <para revision="282199">The <literal>drm</literal> code has
 324         been updated to match &linux; version 3.8.13.</para>
 325     </sect2>
 326
 327     <sect2 xml:id="drivers-storage">
 328       <title>Storage Drivers</title>
 329
 330       <para revision="281957">The &man.hptnr.4; driver has been
 331         updated to version 1.1.1.</para>
 332     </sect2>
 333
 334     <sect2 xml:id="drivers-network">
 335       <title>Network Drivers</title>
 336
 337       <para>&nbsp;</para>
 338     </sect2>
 339   </sect1>
 340
 341   <sect1 xml:id="hardware">
 342     <title>Hardware Support</title>
 343
 344     <para>This section covers general hardware support for physical
 345       machines, hypervisors, and virtualization environments, as well
 346       as hardware changes and updates that do not otherwise fit in
 347       other sections of this document.</para>
 348
 349     <sect2 xml:id="hardware-support">
 350       <title>Hardware Support</title>
 351
 352       <para>&nbsp;</para>
 353     </sect2>
 354
 355     <sect2 xml:id="hardware-virtualization">
 356       <title>Virtualization Support</title>
 357
 358       <para revision="280370">The &man.bhyve.8; hypervisor has been
 359         updated to support <literal>DSM TRIM</literal> commands for
 360         virtual <acronym>AHCI</acronym> disks.</para>
 361     </sect2>
 362
 363     <sect2 xml:id="hardware-arm">
 364       <title>ARM Support</title>
 365
 366       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 367         driver has been added, which supports <acronym>CPU</acronym>
 368         frequency and voltage control on the Raspberry Pi
 369         <acronym>SOC</acronym>.</para>
 370     </sect2>
 371   </sect1>
 372
 373   <sect1 xml:id="storage">
 374     <title>Storage</title>
 375
 376     <para>This section covers changes and additions to file systems
 377       and other storage subsystems, both local and networked.</para>
 378
 379     <sect2 xml:id="storage-general">
 380       <title>General Storage</title>
 381
 382       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 383         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 384         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 385         with a new mechanism that works for any port.</para>
 386
 387       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 388         &man.ctld.8; utility has been updated to allow controlling
 389         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 390     </sect2>
 391
 392     <sect2 xml:id="storage-net">
 393       <title>Networked Storage</title>
 394
 395       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 396         &man.ctld.8; utility has been updated to include support for
 397         registering <acronym>iSCSI</acronym> targets and portals on
 398         <acronym>iSNS</acronym> servers.  This provides a mechanism
 399         which allows <acronym>iSCSI</acronym> initiators to find
 400         targets and portals without requiring active
 401         discovery.</para>
 402     </sect2>
 403
 404     <sect2 xml:id="storage-zfs">
 405       <title>ZFS</title>
 406
 407       <para revision="275490">A new tunable,
 408         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 409         which controls how much space is reserved by default.</para>
 410
 411       <para revision="277583">The <literal>arc_meta_limit</literal>
 412         statistics are now visible through the
 413         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 414         change, the <literal>vfs.zfs.arc_meta_used</literal>
 415         &man.sysctl.8; has been removed, and replaced with the
 416         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 417         &man.sysctl.8;.</para>
 418     </sect2>
 419
 420     <sect2 xml:id="storage-geom">
 421       <title>&man.geom.4;</title>
 422
 423       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 424         &man.ctl.4; subsystem has been updated, increasing the ports
 425         limit from <literal>128</literal> to <literal>256</literal>,
 426         and <acronym>LUN</acronym> limit from <literal>256</literal>
 427         to <literal>1024</literal>.</para>
 428     </sect2>
 429   </sect1>
 430
 431   <sect1 xml:id="boot">
 432     <title>Boot Loader Changes</title>
 433
 434     <para>This section covers the boot loader, boot menu, and other
 435       boot-related changes.</para>
 436
 437     <sect2 xml:id="boot-loader">
 438       <title>Boot Loader Changes</title>
 439
 440       <para revision="281843">The boot loader has been updated to
 441         support entering the <acronym>GELI</acronym> passphrase before
 442         loading the kernel.  To enable this behavior, add
 443         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 444         &man.loader.conf.5;.</para>
 445     </sect2>
 446
 447     <sect2 xml:id="boot-menu">
 448       <title>Boot Menu Changes</title>
 449
 450       <para>&nbsp;</para>
 451     </sect2>
 452   </sect1>
 453
 454   <sect1 xml:id="network">
 455     <title>Networking</title>
 456
 457     <para>This section describes changes that affect networking in
 458       &os;.</para>
 459
 460     <sect2 xml:id="network-protocols">
 461       <title>Network Procols</title>
 462
 463       <para>&nbsp;</para>
 464     </sect2>
 465   </sect1>
 466
 467   <sect1 xml:id="ports">
 468     <title>Ports Collection and Package Infrastructure</title>
 469
 470     <para>This section covers changes to the &os;&nbsp;Ports
 471       Collection, package infrastructure, and package maintenance and
 472       installation tools.</para>
 473
 474     <sect2 xml:id="ports-infrastructure">
 475       <title>Infrastructure Changes</title>
 476
 477       <para>&nbsp;</para>
 478     </sect2>
 479
 480     <sect2 xml:id="ports-packages ">
 481       <title>Packaging Changes</title>
 482
 483       <para>&nbsp;</para>
 484     </sect2>
 485   </sect1>
 486
 487   <sect1 xml:id="doc">
 488     <title>Documentation</title>
 489
 490     <para>This section covers changes to the &os;&nbsp;Documentation
 491       Project sources and toolchain.</para>
 492
 493     <sect2 xml:id="doc-sources">
 494       <title>Documentation Source Changes</title>
 495
 496       <para>&nbsp;</para>
 497     </sect2>
 498
 499     <sect2 xml:id="doc-toolchain">
 500       <title>Documentation Toolchain Changes</title>
 501
 502       <para>&nbsp;</para>
 503     </sect2>
 504   </sect1>
 505
 506   <sect1 xml:id="releng">
 507     <title>Release Engineering and Integration</title>
 508
 509     <para>This section convers changes that are specific to the
 510       &os;&nbsp;Release Engineering processes.</para>
 511
 512     <sect2 xml:id="releng-changes">
 513       <title>Integration Changes</title>
 514
 515       <para>&nbsp;</para>
 516     </sect2>
 517   </sect1>
 518 </article>