release/doc/en_US.ISO8859-1/relnotes/article.xml

   1 <?xml version="1.0" encoding="iso-8859-1"?>
   2 <!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN"
   3         "../../../share/xml/freebsd50.dtd" [
   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="278968" contrib="sponsor" sponsor="&ff;">The
 187         &man.mkimg.1; utility has been updated to support the
 188         <acronym>MBR</acronym> <acronym>EFI</acronym> partition
 189         type.</para>
 190
 191       <para revision="281044">A regression in the &man.libarchive.3;
 192         library that would prevent a directory from being included in
 193         the archive when <literal>--one-file-system</literal> is used
 194         has been fixed.</para>
 195
 196       <para revision="281161" contrib="sponsor"
 197         sponsor="&limelight;">A new flag, <literal>-R</literal>, has
 198         been added to the &man.netstat.8; utility, which is used to
 199         dump <acronym>RSS</acronym>/flow information.</para>
 200
 201       <para revision="281936" contrib="sponsor" sponsor="&ff;">The
 202         &man.ar.1; utility has been updated to set
 203         <literal>ARCHIVE_EXTRACT_SECURE_SYMLINKS</literal> and
 204         <literal>ARCHIVE_EXTRACT_SECURE_NODOTDOT</literal> to disallow
 205         directory traversal when extracting an archive, similar to
 206         &man.tar.1;.</para>
 207
 208       <para revision="282278">A race condition in &man.wc.1; that
 209         would cause final results to be sent to &man.stderr.4; when
 210         receiving the <literal>SIGINFO</literal> signal has been
 211         fixed.</para>
 212
 213       <para revision="282870" contrib="sponsor"
 214         sponsor="&scaleengine;">The &man.freebsd-update.8; utility has
 215         been updated to prevent fetching updated binary patches when
 216         a previous upgrade has not been thoroughly completed.</para>
 217
 218       <para revision="282974" contrib="sponsor" sponsor="&ff;">The
 219         &man.uefisign.8; utility has been added.</para>
 220
 221       <para revision="283875" contrib="sponsor"
 222         sponsor="&multiplay;">The &man.chflags.1;, &man.chgrp.1;,
 223         &man.chmod.1;, and &man.chown.8; utilities now affect symbolic
 224         links when the <literal>-R</literal> flag is specified, as
 225         documented in &man.symlink.7;.</para>
 226
 227       <para revision="283258">The &man.date.1; utility has been
 228         updated to print the modification time of the file passed as
 229         an argument to the <literal>-r</literal> flag, improving
 230         compatibility with the <acronym>GNU</acronym> &man.date.1;
 231         utility behavior.</para>
 232
 233       <para revision="284523">A new flag, <literal>-c</literal>, has
 234         been added to the &man.mkimg.1; utility, which allows
 235         specifying the capacity of the target disk image.</para>
 236
 237       <para revision="285092">The &man.pw.8; utility has been updated
 238         with a new flag, <literal>-R</literal>, that sets the root
 239         directory within which the utility will operate.</para>
 240     </sect2>
 241
 242     <sect2 xml:id="userland-contrib">
 243       <title>Contributed Software</title>
 244
 245       <para revision="282746" contrib="sponsor" sponsor="&ff;">The
 246         &man.resolvconf.8; utility has been updated to version
 247         3.7.0.</para>
 248
 249       <para revision="283270">The &man.nc.1; utility has been updated
 250         to the OpenBSD 5.7 version.</para>
 251
 252       <para revision="284398">Timezone data files have been updated to
 253         version 2015e.</para>
 254
 255       <para revision="284460">The &man.acpi.4; subsystem has been
 256         updated to version 20150515.</para>
 257
 258       <para revision="284778">The &man.file.1; utility has been
 259         updated to version 5.23.</para>
 260
 261       <para revision="285206">The &man.unbound.8; utility has been
 262         updated to version 1.5.3.</para>
 263
 264       <para revision="285305">The <application>sendmail</application>
 265         utility has been updated to version 8.15.2.</para>
 266
 267       <para revision="285330"><application>OpenSSL</application> has
 268         been updated to version 1.0.1p.</para>
 269     </sect2>
 270
 271     <sect2 xml:id="userland-installer">
 272       <title>Installation and Configuration Tools</title>
 273
 274       <para>&nbsp;</para>
 275     </sect2>
 276
 277     <sect2 xml:id="userland-rc">
 278       <title><filename class="directory">/etc/rc.d</filename>
 279         Scripts</title>
 280
 281       <para revision="284009">A new &man.rc.8; script,
 282         <filename>growfs</filename>, has been added, which will resize
 283         the root filesystem on boot if <filename>/firstboot</filename>
 284         exists.</para>
 285     </sect2>
 286
 287     <sect2 xml:id="userland-periodic">
 288       <title><filename class="directory">/etc/periodic</filename>
 289         Scripts</title>
 290
 291       <para revision="277520" contrib="sponsor" sponsor="&ff;">A new
 292         &man.periodic.8; script,
 293         <filename>510.status-world-kernel</filename>, has been added,
 294         which evaluates the running userland and kernel versions from
 295         the &man.uname.1; <literal>-U</literal> and
 296         <literal>-K</literal> arguments, and prints an error if the
 297         system userland and kernel are not in sync.</para>
 298     </sect2>
 299
 300     <sect2 xml:id="userland-libraries">
 301       <title>Runtime Libraries and API</title>
 302
 303       <para revision="275040">A new file configuration library,
 304         &man.figpar.3;, has been added to the base system.</para>
 305
 306       <para revision="280392">The &man.setmode.3; function has been
 307         updated to consistently set <literal>errno</literal> on
 308         failure.</para>
 309     </sect2>
 310
 311     <sect2 xml:id="userland-abi">
 312       <title>ABI Compatibility</title>
 313
 314       <para>&nbsp;</para>
 315     </sect2>
 316   </sect1>
 317
 318   <sect1 xml:id="kernel">
 319     <title>Kernel</title>
 320
 321     <para>This section covers changes to kernel configurations, system
 322       tuning, and system control parameters that are not otherwise
 323       categorized.</para>
 324
 325     <sect2 xml:id="kernel-bugfix">
 326       <title>Kernel Bug Fixes</title>
 327
 328       <para>&nbsp;</para>
 329     </sect2>
 330
 331     <sect2 xml:id="kernel-config">
 332       <title>Kernel Configuration</title>
 333
 334       <para revision="283076" contrib="sponsor" sponsor="&intelcorp;"
 335         arch="amd64,i386">The &man.nvd.4; and &man.nvme.4; drivers are
 336         now included in the <filename>GENERIC</filename> kernel
 337         configuration by default.</para>
 338
 339       <para revision="284522" contrib="sponsor"
 340         sponsor="&limelight;">A new kernel configuration option,
 341         <literal>EM_MULTIQUEUE</literal>, has been added which enables
 342         multi-queue support in the &man.em.4; driver.</para>
 343
 344       <note>
 345         <para>Multi-queue support in the &man.em.4; driver is not
 346           officially supported by &intel;.</para>
 347       </note>
 348     </sect2>
 349
 350     <sect2 xml:id="kernel-sysctl">
 351       <title>System Tuning and Controls</title>
 352
 353       <para revision="276986">Throttling via <acronym>ACPI</acronym>
 354         and <acronym>P4TCC</acronym> via &man.device.hints.5; have
 355         been turned off by default.</para>
 356
 357       <para revision="278982" contrib="sponsor" sponsor="&ff;">The
 358         &man.hwpmc.4; default and maximum callchain depths have been
 359         increased.  The default has been increased from 16 to 32, and
 360         the maximum increased from 32 to 128.</para>
 361
 362       <para revision="281255" contrib="sponsor"
 363         sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
 364         been changed to update timestamps for read/write operations
 365         using seconds precision.  A new &man.sysctl.8;,
 366         <literal>vfs.devfs.dotimes</literal> has been added, which
 367         when set to a non-zero value, enables default precision
 368         timestamps for these operations.</para>
 369
 370       <para revision="280632">The <literal>kern.osrelease</literal>
 371         and <literal>kern.osreldate</literal> are now configurable
 372         &man.jail.8; parameters.</para>
 373
 374       <para revision="284665" contrib="sponsor" sponsor="&ff;">A new
 375         &man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
 376         added, which when set to a non-zero value allows using
 377         &man.rctl.8; with the <literal>GENERIC</literal> kernel.
 378         A new kernel configuration option,
 379         <literal>RACCT_DISABLED</literal> has also been added.</para>
 380
 381       <para revision="284665" contrib="sponsor" sponsor="&ff;">The
 382         <literal>GENERIC</literal> kernel configuration now includes
 383         <literal>RACCT</literal> and <literal>RCTL</literal> by
 384         default.</para>
 385
 386       <note>
 387         <para>To enable <literal>RACCT</literal> and
 388           <literal>RCTL</literal> on a system using the
 389           <literal>GENERIC</literal> kernel configuration, add
 390           <literal>kern.racct.enable=1</literal> to
 391           &man.loader.conf.5;, and reboot the system.</para>
 392       </note>
 393     </sect2>
 394   </sect1>
 395
 396   <sect1 xml:id="drivers">
 397     <title>Devices and Drivers</title>
 398
 399     <para>This section covers changes and additions to devices and
 400       device drivers since &release.prev;.</para>
 401
 402     <sect2 xml:id="drivers-device">
 403       <title>Device Drivers</title>
 404
 405       <para revision="282199">The <literal>drm</literal> code has
 406         been updated to match &linux; version 3.8.13.</para>
 407     </sect2>
 408
 409     <sect2 xml:id="drivers-storage">
 410       <title>Storage Drivers</title>
 411
 412       <para revision="281957">The &man.hptnr.4; driver has been
 413         updated to version 1.1.1.</para>
 414     </sect2>
 415
 416     <sect2 xml:id="drivers-network">
 417       <title>Network Drivers</title>
 418
 419       <para revision="279157">The &man.ral.4; driver has been updated
 420         to support the RT5390 and RT5392 chipsets.</para>
 421
 422       <para revision="284066" contrib="sponsor" sponsor="&yandex;">The
 423         &man.gre.4; driver has been significantly overhauled, and has
 424         been split into two separate modules, &man.gre.4; and
 425         &man.me.4;.</para>
 426
 427       <para revision="284365">The &man.vxlan.4; driver has been added,
 428         which creates a virtual Layer 2 (Ethernet) network overlaid in
 429         a Layer 3 (IP/UDP) network.  The &man.vxlan.4; driver is
 430         analogous to &man.vlan.4;, but is designed to be better suited
 431         for large, multiple-tenant datacenter environments.</para>
 432     </sect2>
 433   </sect1>
 434
 435   <sect1 xml:id="hardware">
 436     <title>Hardware Support</title>
 437
 438     <para>This section covers general hardware support for physical
 439       machines, hypervisors, and virtualization environments, as well
 440       as hardware changes and updates that do not otherwise fit in
 441       other sections of this document.</para>
 442
 443     <sect2 xml:id="hardware-support">
 444       <title>Hardware Support</title>
 445
 446       <para>&nbsp;</para>
 447     </sect2>
 448
 449     <sect2 xml:id="hardware-virtualization">
 450       <title>Virtualization Support</title>
 451
 452       <para revision="275273">The &man.virtio.console.4; driver has
 453         been added, which provides an interface to VirtIO console
 454         devices through a &man.tty.4; device.</para>
 455
 456       <para revision="276403">The &man.bhyve.8; hypervisior has been
 457         updated to support &amd; processors with
 458         <acronym>SVM</acronym> and <acronym>AMD-V</acronym> hardware
 459         extensions.</para>
 460
 461       <para revision="280370">The &man.bhyve.8; hypervisor has been
 462         updated to support <literal>DSM TRIM</literal> commands for
 463         virtual <acronym>AHCI</acronym> disks.</para>
 464
 465       <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
 466         Hyper-V&trade; drivers have been updated with several
 467         enhancements:</para>
 468
 469       <itemizedlist>
 470         <listitem>
 471           <para>The &man.hv.vmbus.4; driver now has multi-channel
 472             support.</para>
 473         </listitem>
 474
 475         <listitem>
 476           <para>The &man.hv.storvsc.4; driver now has scatter/gather
 477             support, in addition to performance improvements.</para>
 478         </listitem>
 479
 480         <listitem>
 481           <para>The &man.hv.kvp.4; driver has received several bug
 482             fixes.</para>
 483         </listitem>
 484       </itemizedlist>
 485
 486       <para revision="285236" contrib="sponsor" sponsor="&msostc;">The
 487         &man.hv.netvsc.4; driver has been updated to support checksum
 488         offloading and <acronym>TSO</acronym>.</para>
 489     </sect2>
 490
 491     <sect2 xml:id="hardware-arm">
 492       <title>ARM Support</title>
 493
 494       <para revision="278608">The <literal>bcm2835_cpufreq</literal>
 495         driver has been added, which supports <acronym>CPU</acronym>
 496         frequency and voltage control on the Raspberry Pi
 497         <acronym>SOC</acronym>.</para>
 498     </sect2>
 499   </sect1>
 500
 501   <sect1 xml:id="storage">
 502     <title>Storage</title>
 503
 504     <para>This section covers changes and additions to file systems
 505       and other storage subsystems, both local and networked.</para>
 506
 507     <sect2 xml:id="storage-general">
 508       <title>General Storage</title>
 509
 510       <para revision="279002" contrib="sponsor" sponsor="&ix;">The
 511         &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
 512         replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
 513         with a new mechanism that works for any port.</para>
 514
 515       <para revision="279055" contrib="sponsor" sponsor="&ix;">The
 516         &man.ctld.8; utility has been updated to allow controlling
 517         non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
 518
 519       <para revision="283223" contrib="sponsor" sponsor="&ff;">The
 520         &man.autofs.5; subsystem has been updated to include a new
 521         &man.auto.master.5; map, <literal>-media</literal>, which
 522         allows automatically mounting removable media, such as
 523         <acronym>CD</acronym> drives or <acronym>USB</acronym> flash
 524         drives.</para>
 525
 526       <para revision="283242" contrib="sponsor" sponsor="&ff;">The
 527         &man.autofs.5; subsystem has been updated to include a new
 528         &man.auto.master.5; map, <literal>-noauto</literal>, which
 529         handles &man.fstab.5; entries set to
 530         <literal>noauto</literal>.</para>
 531     </sect2>
 532
 533     <sect2 xml:id="storage-net">
 534       <title>Networked Storage</title>
 535
 536       <para revision="274939" contrib="sponsor" sponsor="&ix;">The
 537         &man.ctld.8; utility has been updated to include support for
 538         registering <acronym>iSCSI</acronym> targets and portals on
 539         <acronym>iSNS</acronym> servers.  This provides a mechanism
 540         which allows <acronym>iSCSI</acronym> initiators to find
 541         targets and portals without requiring active
 542         discovery.</para>
 543     </sect2>
 544
 545     <sect2 xml:id="storage-zfs">
 546       <title>ZFS</title>
 547
 548       <para revision="275490">A new tunable,
 549         <literal>vfs.zfs.spa_slop_shift</literal>, has been added,
 550         which controls how much space is reserved by default.</para>
 551
 552       <para revision="277583">The <literal>arc_meta_limit</literal>
 553         statistics are now visible through the
 554         <literal>kstat</literal> &man.sysctl.8;.  As a result of this
 555         change, the <literal>vfs.zfs.arc_meta_used</literal>
 556         &man.sysctl.8; has been removed, and replaced with the
 557         <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
 558         &man.sysctl.8;.</para>
 559     </sect2>
 560
 561     <sect2 xml:id="storage-geom">
 562       <title>&man.geom.4;</title>
 563
 564       <para revision="275891" contrib="sponsor" sponsor="&ix;">The
 565         &man.ctl.4; subsystem has been updated, increasing the ports
 566         limit from <literal>128</literal> to <literal>256</literal>,
 567         and <acronym>LUN</acronym> limit from <literal>256</literal>
 568         to <literal>1024</literal>.</para>
 569
 570       <para revision="282861">Support for the
 571         <literal>apple-boot</literal>, <literal>apple-hfs</literal>,
 572         and <literal>apple-ufs</literal> <acronym>MBR</acronym>
 573         partitioning schemes have been added to &man.gpart.8;.</para>
 574     </sect2>
 575   </sect1>
 576
 577   <sect1 xml:id="boot">
 578     <title>Boot Loader Changes</title>
 579
 580     <para>This section covers the boot loader, boot menu, and other
 581       boot-related changes.</para>
 582
 583     <sect2 xml:id="boot-loader">
 584       <title>Boot Loader Changes</title>
 585
 586       <para revision="281843">The boot loader has been updated to
 587         support entering the <acronym>GELI</acronym> passphrase before
 588         loading the kernel.  To enable this behavior, add
 589         <literal>geom_eli_passphrase_prompt="YES"</literal> to
 590         &man.loader.conf.5;.</para>
 591
 592       <para revision="283262" contrib="sponsor" sponsor="&ff;">The
 593         memory test run at boot time on &os;/&arch.amd64; platforms
 594         has been disabled by default.</para>
 595
 596       <para revision="283972">A new &man.ttys.5; class,
 597         <literal>3wire</literal>, has been added.  This is similar to
 598         the existing terminal classes, but does not have a defined
 599         baudrate.</para>
 600
 601       <para revision="284775" contrib="sponsor" sponsor="&ff;"
 602         arch="arm">The &man.ttys.5; file for &os;/&arch.arm; has been
 603         updated to enable <filename>ttyu1</filename>,
 604         <filename>ttyu2</filename>, and <filename>ttyu3</filename> by
 605         default, if the callin port is an active console port.</para>
 606     </sect2>
 607
 608     <sect2 xml:id="boot-menu">
 609       <title>Boot Menu Changes</title>
 610
 611       <para>&nbsp;</para>
 612     </sect2>
 613   </sect1>
 614
 615   <sect1 xml:id="network">
 616     <title>Networking</title>
 617
 618     <para>This section describes changes that affect networking in
 619       &os;.</para>
 620
 621     <sect2 xml:id="network-protocols">
 622       <title>Network Procols</title>
 623
 624       <para>&nbsp;</para>
 625     </sect2>
 626   </sect1>
 627
 628   <sect1 xml:id="ports">
 629     <title>Ports Collection and Package Infrastructure</title>
 630
 631     <para>This section covers changes to the &os;&nbsp;Ports
 632       Collection, package infrastructure, and package maintenance and
 633       installation tools.</para>
 634
 635     <sect2 xml:id="ports-infrastructure">
 636       <title>Infrastructure Changes</title>
 637
 638       <para>&nbsp;</para>
 639     </sect2>
 640
 641     <sect2 xml:id="ports-packages ">
 642       <title>Packaging Changes</title>
 643
 644       <para>&nbsp;</para>
 645     </sect2>
 646   </sect1>
 647
 648   <sect1 xml:id="doc">
 649     <title>Documentation</title>
 650
 651     <para>This section covers changes to the &os;&nbsp;Documentation
 652       Project sources and toolchain.</para>
 653
 654     <sect2 xml:id="doc-sources">
 655       <title>Documentation Source Changes</title>
 656
 657       <para>&nbsp;</para>
 658     </sect2>
 659
 660     <sect2 xml:id="doc-toolchain">
 661       <title>Documentation Toolchain Changes</title>
 662
 663       <para>&nbsp;</para>
 664     </sect2>
 665   </sect1>
 666
 667   <sect1 xml:id="releng">
 668     <title>Release Engineering and Integration</title>
 669
 670     <para>This section convers changes that are specific to the
 671       &os;&nbsp;Release Engineering processes.</para>
 672
 673     <sect2 xml:id="releng-changes">
 674       <title>Integration Changes</title>
 675
 676       <para revision="283161" contrib="sponsor" sponsor="&ff;">The
 677         Release Engineering build tools have been updated to support
 678         building &os;/&arch.arm; images without external utilities for
 679         supported boards where a corresponding
 680         <literal>u-boot</literal> port exists in the Ports
 681         Collection.</para>
 682
 683       <para revision="283548" contrib="sponsor" sponsor="&ff;">The
 684         &os;/&arch.i386; memory stick installation images are now
 685         created using the &man.mkimg.1; utility, matching the way
 686         the &os;/&arch.amd64; images are created.</para>
 687     </sect2>
 688   </sect1>
 689 </article>