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

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  11 <article xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
  12   <info><title>&os; &release.current; Release Notes</title>
  13
  14   <author><orgname>The &os; Project</orgname></author>
  15
  16   <pubdate>$FreeBSD$</pubdate>
  17
  18   <copyright>
  19     <year>2015</year>
  20     <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  21       Project</holder>
  22   </copyright>
  23
  24   <legalnotice xml:id="trademarks" role="trademarks">
  25     &tm-attrib.freebsd;
  26     &tm-attrib.ibm;
  27     &tm-attrib.ieee;
  28     &tm-attrib.intel;
  29     &tm-attrib.sparc;
  30     &tm-attrib.general;
  31   </legalnotice>
  32
  33   <abstract>
  34     <para>The release notes for &os; &release.current; contain
  35       a summary of the changes made to the &os; base system on the
  36       &release.branch; development line.  This document lists
  37       applicable security advisories that were issued since the last
  38       release, as well as significant changes to the &os; kernel and
  39       userland.  Some brief remarks on upgrading are also
  40       presented.</para>
  41   </abstract>
  42 </info>
  43
  44 <sect1 xml:id="intro">
  45   <title>Introduction</title>
  46
  47   <para>This document contains the release notes for &os;
  48     &release.current;.  It describes recently added, changed, or
  49     deleted features of &os;.  It also provides some notes on
  50     upgrading from previous versions of &os;.</para>
  51
  52   <para releasetype="current">The &release.type; distribution to which
  53     these release notes apply represents the latest point along the
  54     &release.branch; development branch since &release.branch; was
  55     created.  Information regarding pre-built, binary &release.type;
  56     distributions along this branch can be found at <uri
  57       xlink:href="&release.url;">&release.url;</uri>.</para>
  58
  59   <para releasetype="snapshot">The &release.type; distribution to
  60     which these release notes apply represents a point along the
  61     &release.branch; development branch between &release.prev; and the
  62     future &release.next;.  Information regarding pre-built, binary
  63     &release.type; distributions along this branch can be found at
  64     <uri xlink:href="&release.url;">&release.url;</uri>.</para>
  65
  66   <para releasetype="release">This distribution of &os;
  67     &release.current; is a &release.type; distribution.  It can be
  68     found at <uri xlink:href="&release.url;">&release.url;</uri> or
  69     any of its mirrors.  More information on obtaining this (or other)
  70     &release.type; distributions of &os; can be found in the <link
  71       xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
  72         &os;</quote> appendix</link> to the <link
  73       xlink:href="&url.books.handbook;/">&os; Handbook</link>.</para>
  74
  75   <para>All users are encouraged to consult the release errata before
  76     installing &os;.  The errata document is updated with
  77     <quote>late-breaking</quote> information discovered late in the
  78     release cycle or after the release.  Typically, it contains
  79     information on known bugs, security advisories, and corrections to
  80     documentation.  An up-to-date copy of the errata for &os;
  81     &release.current; can be found on the &os; Web site.</para>
  82 </sect1>
  83
  84 <sect1 xml:id="new">
  85   <title>What's New</title>
  86
  87   <para>This section describes the most user-visible new or changed
  88     features in &os; since &release.prev;.  In general, changes
  89     described here are unique to the &release.branch; branch unless
  90     specifically marked as &merged; features.</para>
  91
  92   <para>Typical release note items document recent security advisories
  93     issued after &release.prev;, new drivers or hardware support, new
  94     commands or options, major bug fixes, or contributed software
  95     upgrades.  They may also list changes to major ports/packages or
  96     release engineering practices.  Clearly the release notes cannot
  97     list every single change made to &os; between releases; this
  98     document focuses primarily on security advisories, user-visible
  99     changes, and major architectural improvements.</para>
 100
 101   <sect2 xml:id="security">
 102     <title>Security Advisories</title>
 103
 104     <para>No advisories.</para>
 105
 106   </sect2>
 107
 108   <sect2 xml:id="kernel">
 109     <title>Kernel Changes</title>
 110
 111     <para revision="260903">Support for GPS ports has been added to
 112       &man.uhso.4;.</para>
 113
 114     <para revision="264601" contrib="sponsor"
 115       sponsor="&darpa_afrl;">The <literal>if_nf10bmac(4)</literal>
 116       device has been added, providing support for NetFPGA-10G
 117       Embedded CPU Ethernet Core.</para>
 118
 119     <note>
 120       <para>The <literal>if_nf10bmac(4)</literal> driver operates on
 121         the FPGA, and is not suited for the PCI host interface.</para>
 122     </note>
 123
 124     <para revision="265132">The &man.full.4; device has been added,
 125       and the <literal>lindev(4)</literal> device has been removed.
 126       Prior to this change, <literal>lindev(4)</literal> provided only
 127       the <filename>/dev/full</filename> character device, returning
 128       <literal>ENOSPC</literal> on write attempts.  As this device is
 129       not specific to &linux;, a native &os; version has been
 130       added.</para>
 131
 132     <para revision="265236" contrib="sponsor"
 133       sponsor="&lsi;, &spectralogic;" sponsorurl="">The &man.mpr.4;
 134       device has been added, providing support for LSI Fusion-MPT
 135       3 12Gb SCSI/SATA controllers.</para>
 136
 137     <para revision="265555" contrib="sponsor"
 138       sponsor="&lsi;">The &man.mrsas.4; driver has been added,
 139       providing support for LSI MegaRAID SAS controllers.  The
 140       &man.mfi.4; driver will attach to the controller, by default.
 141       To enable &man.mrsas.4; add
 142       <literal>hw.mfi.mrsas_enable=1</literal> to
 143       <filename>/boot/loader.conf</filename>, which turns off
 144       &man.mfi.4; device probing.</para>
 145
 146     <note>
 147       <para>At this time, the &man.mfiutil.8; utility and
 148         the &os; version of
 149         <application>MegaCLI</application> and
 150         <application>StorCli</application> do not work with
 151         &man.mrsas.4;.</para>
 152     </note>
 153
 154     <para revision="265876">A kernel bug that inhibited proper
 155       functionality of the <literal>dev.cpu.0.freq</literal>
 156       &man.sysctl.8; on &intel; processors with Turbo
 157       Boost&nbsp;&trade; enabled has been fixed.</para>
 158
 159     <para revision="266531">The <literal>IMAGACT_BINMISC</literal>
 160       kernel configuration option has been enabled by default,
 161       which enables application execution through emulators, such
 162       as <application>Qemu</application>.</para>
 163
 164     <para revision="266757" contrib="sponsor"
 165         sponsor="&chelsio;">Support for the &man.cxgbe.4; Terminator 5
 166       (T5) 10G/40G cards has been added to &man.netmap.4;.</para>
 167
 168     <para revision="268045">The <literal>VT</literal> kernel
 169       configuration file has been removed, and the &man.vt.4;
 170       driver is included in the <literal>GENERIC</literal> kernel.
 171       To enable &man.vt.4;, enter <literal>set kern.vty=vt</literal>
 172       at the &man.loader.8; prompt during boot, or add
 173       <literal>kern.vty=vt</literal> to &man.loader.conf.5; and
 174       reboot the system.</para>
 175
 176     <para revision="271697" arch="powerpc">Support for &man.dtrace.1;
 177       stack tracing has been fixed for &os;/&arch.powerpc;, using the
 178       <literal>trapexit()</literal> and
 179       <literal>asttrapexit()</literal> functions instead of checking
 180       within addressed kernel space.</para>
 181
 182     <para revision="271705">Hardware context support has been
 183       added to the <literal>drm/i915</literal> driver, adding
 184       support for <application>Mesa</application> 9.2 and
 185       later.</para>
 186
 187     <para revision="273178">The &man.vt.4; driver has been updated,
 188       replacing the bitmapped <literal>kern.vt.spclkeys</literal>
 189       &man.sysctl.8; with individual <literal>kern.vt.kbd_*</literal>
 190       variants.</para>
 191
 192     <sect3 xml:id="kernel-virtualization">
 193       <title>Virtualization support</title>
 194
 195       <para revision="260410">Support for the <quote>Virtual Interrupt
 196           Delivery</quote> feature of &intel;&nbsp;VT-x is enabled if
 197         supported by the CPU.  This feature can be disabled by running
 198         <literal>sysctl hw.vmm.vmx.use_apic_vid=0</literal>.
 199         Additionally, to persist this setting across reboots, add
 200         <literal>hw.vmm.vmx.use_apic_vid=0</literal> to
 201         <filename>/etc/sysctl.conf</filename>.</para>
 202
 203       <para revision="260532">Support for <quote>Posted Interrupt
 204           Processing</quote> is enabled if supported by the CPU.  This
 205         feature can be disabled by running <literal>sysctl
 206           hw.vmm.vmx.use_apic_pir=0</literal>.  Additionally, to
 207         persist this setting across reboots, add
 208         <literal>hw.vmm.vmx.use_apic_pir=0</literal> to
 209         <filename>/etc/sysctl.conf</filename>.</para>
 210
 211       <para revision="260582">Unmapped IO support has been added to
 212         &man.virtio_blk.4;.</para>
 213
 214       <para revision="260583">Unmapped IO support has been added to
 215         &man.virtio_scsi.4;.</para>
 216
 217       <para revision="260847">The &man.virtio_random.4; driver has
 218         been added to harvest entropy from the host system.</para>
 219
 220       <para revision="267536" contrib="sponsor"
 221         sponsor="&citrix.rd;">Support for running a &os;/&arch.amd64;
 222         <application>Xen</application> guest instance as
 223         <acronym>PVH</acronym> guest has been added.
 224         <acronym>PVH</acronym> mode, short for <quote>Para-Virtualized
 225           Hardware</quote>, uses para-virtualized drivers for boot
 226         and I/O, and uses hardware virtualization extensions for all
 227         other tasks, without the need for emulation.</para>
 228     </sect3>
 229
 230     <sect3 xml:id="kernel-arm">
 231       <title>ARM support</title>
 232
 233       <para revision="260921">The &man.nand.4; device is enabled for
 234         ARM devices by default.</para>
 235
 236       <para revision="273264" arch="armv6">An issue that could cause
 237         instability when detecting <acronym>SD</acronym> cards on the
 238         Raspberry Pi <acronym>SOC</acronym> has been fixed.</para>
 239     </sect3>
 240
 241     <sect3 xml:id="boot">
 242       <title>Boot Loader Changes</title>
 243
 244       <para>&nbsp;</para>
 245     </sect3>
 246
 247     <sect3 xml:id="proc">
 248       <title>Hardware Support</title>
 249
 250       <para revision="268303">The &man.asmc.4; driver has been updated
 251         to support the &apple;&nbsp;MacMini 3,1.</para>
 252
 253       <para revision="268351">Support for &os;/ia64 has been dropped
 254         as of &os;&nbsp;11.</para>
 255
 256       <sect4 xml:id="mm">
 257         <title>Multimedia Support</title>
 258
 259         <para>&nbsp;</para>
 260       </sect4>
 261
 262       <sect4 xml:id="net-if">
 263         <title>Network Interface Support</title>
 264
 265         <para revision="258830">Support for Broadcom chipsets
 266           BCM57764, BCM57767, BCM57782, BCM57786 and BCM57787 has
 267           been added to &man.bge.4;.</para>
 268
 269         <para revision="260448">Support for the &intel;
 270           Centrino&trade; Wireless-N 135 chipset has been
 271           added.</para>
 272
 273         <para revision="260552">Firmware for &intel;
 274           Centrino&trade; Wireless-N 105 devices has been added
 275           to the base system.</para>
 276
 277         <para revision="261975">The deprecated nve(4) driver has been
 278           removed.  Users of NVIDIA nForce MCP network adapters are
 279           advised to use the &man.nfe.4; driver instead, which has been
 280           the default driver for this hardware since &os; 7.0.</para>
 281
 282         <para revision="265348" contrib="sponsor"
 283           sponsor="&netgate;">The &man.ath.hal.4; driver has been
 284           updated to support the Atheros AR1111 chipset.</para>
 285
 286         <para revision="266770">Support for the &intel;
 287           Centrino&trade; Wireless-N 105 chipset has been
 288           added.</para>
 289
 290         <para revision="272089">A bug in &man.ipfw.4; that could
 291           potentially lead to a kernel panic when using
 292           &man.dummynet.4; at layer 2 has been fixed.</para>
 293
 294         <para revision="272730">The &man.alc.4; driver has been
 295           updated to support AR816x and AR817x ethernet
 296           controllers.</para>
 297       </sect4>
 298     </sect3>
 299
 300     <sect3 xml:id="net-proto">
 301       <title>Network Protocols</title>
 302
 303       <para revision="263140">Support for the IPX network transport
 304         protocol has been removed, and will not be supported in
 305         &os;&nbsp;11 and later releases.</para>
 306
 307       <para revision="272720" contrib="sponsor"
 308         sponsor="&limelight;">Support for <acronym>PLPMTUD</acronym>
 309         blackhole detection (<acronym>RFC</acronym> 4821) has been
 310         added to the &man.tcp.4; stack, disabled by default.  New
 311         control tunables have been added:</para>
 312
 313       <informaltable frame="none" pgwide="0">
 314         <tgroup cols="2">
 315           <colspec colwidth="1*"/>
 316           <colspec colwidth="1*"/>
 317           <thead>
 318             <row>
 319               <entry>Tunable</entry>
 320               <entry>Description</entry>
 321             </row>
 322           </thead>
 323
 324           <tbody>
 325             <row>
 326               <entry><literal>net.inet.tcp.pmtud_blackhole_detection</literal></entry>
 327               <entry>Enables or disables <acronym>PLPMTUD</acronym>
 328                 blackhole detection</entry>
 329             </row>
 330
 331             <row>
 332               <entry><literal>net.inet.tcp.pmtud_blackhole_mss</literal></entry>
 333               <entry><acronym>MSS</acronym> to try for IPv4</entry>
 334             </row>
 335
 336             <row>
 337               <entry><literal>net.inet.tcp.v6pmtud_blackhole_mss</literal></entry>
 338               <entry><acronym>MSS to try for IPv6</acronym></entry>
 339             </row>
 340           </tbody>
 341         </tgroup>
 342       </informaltable>
 343
 344       <para>New monitoring &man.sysctl.8;s haven been added:</para>
 345
 346       <informaltable frame="none" pgwide="0">
 347         <tgroup cols="2">
 348           <colspec colwidth="1*"/>
 349           <colspec colwidth="1*"/>
 350           <thead>
 351             <row>
 352               <entry>Tunable</entry>
 353               <entry>Description</entry>
 354             </row>
 355           </thead>
 356
 357           <tbody>
 358             <row>
 359               <entry><literal>net.inet.tcp.pmtud_blackhole_activated</literal></entry>
 360               <entry>Number of times the code was activated to attempt
 361                 downshifting the <acronym>MSS</acronym></entry>
 362             </row>
 363
 364             <row>
 365               <entry><literal>net.inet.tcp.pmtud_blackhole_min_activated</literal></entry>
 366               <entry>Number of times the blackhole
 367                 <acronym>MSS</acronym> was used in an attempt to
 368                 downshift</entry>
 369             </row>
 370
 371             <row>
 372               <entry><literal>net.inet.tcp.pmtud_blackhole_failed</literal></entry>
 373               <entry>Number of times that the blackhole failed to
 374                 connect after downshifting the
 375                 <acronym>MSS</acronym></entry>
 376             </row>
 377           </tbody>
 378         </tgroup>
 379       </informaltable>
 380
 381     </sect3>
 382
 383     <sect3 xml:id="disks">
 384       <title>Disks and Storage</title>
 385
 386       <para revision="267359">Support for the
 387         <literal>disklabel64</literal> partitioning scheme has been
 388         added to &man.gpart.8;.</para>
 389
 390       <para revision="276526">The <literal>asr(4)</literal> driver has
 391         been removed, and is no longer supported.</para>
 392     </sect3>
 393
 394     <sect3 xml:id="fs">
 395       <title>File Systems</title>
 396
 397         <para revision="r270096" contrib="sponsor" sponsor="&ff;">The
 398           new filesystem automount facility, &man.autofs.5;, has been
 399           added.  The new &man.autofs.5; facility is similar to that
 400           found in other &unix;-like operating systems, such as
 401           OS&nbsp;X&trade; and Solaris&trade;.  The &man.autofs.5;
 402           facility uses a &sun;-compatible &man.auto.master.5;
 403           configuration file, and is administered with the
 404           &man.automount.8; userland utility, and the
 405           &man.automountd.8; and &man.autounmountd.8; daemons.</para>
 406
 407       <sect4 xml:id="fs-zfs">
 408         <title>ZFS</title>
 409
 410         <para>&nbsp;</para>
 411       </sect4>
 412     </sect3>
 413   </sect2>
 414
 415   <sect2 xml:id="userland">
 416     <title>Userland Changes</title>
 417
 418     <para revision="258838" contrib="sponsor" sponsor="&ff;, &google;"
 419       sponsorurl="">The &man.casperd.8; daemon has been added,
 420       which provides access to functionality that is not available in
 421       the <quote>capability mode</quote> sandbox.</para>
 422
 423     <para revision="260594">When unable to load a kernel module with
 424       &man.kldload.8;, a message informing to view output of
 425       &man.dmesg.8; is now printed, opposed to the previous output
 426       <quote>Exec format error.</quote>.</para>
 427
 428     <para revision="260910">Allow &man.pciconf.8; to identify PCI
 429       devices that are attached to a driver to be identified by their
 430       device name instead of just the selector.  Additionally, an
 431       optional device argument to the <literal>-l</literal> flag
 432       to restrict the output to only listing details about a single
 433       device.</para>
 434
 435     <para revision="260913">A new flag, <quote>onifconsole</quote> has
 436       been added to <filename>/etc/ttys</filename>.  This allows the
 437       system to provide a login prompt via serial console if the
 438       device is an active kernel console, otherwise it is equivalent
 439       to <literal>off</literal>.</para>
 440
 441     <para revision="260926">Support for displaying VPD for PCI devices
 442       via &man.pciconf.8; has been added.</para>
 443
 444     <para revision="261498">&man.ping.8; protects against malicious
 445       network packets using the Capsicum framework to drop
 446       privileges.</para>
 447
 448     <para revision="261504">&os;/&arch.i386; guests can be run under
 449       bhyve.</para>
 450
 451     <para revision="265229">The &man.ps.1; utility has been
 452       updated to include the <literal>-J</literal> flag, used to
 453       filter output by matching &man.jail.8; IDs and names.
 454       Additionally, argument <literal>0</literal> can be used to
 455       <literal>-J</literal> to only list processes running on the
 456       host system.</para>
 457
 458     <para revision="265249">The &man.top.1; utility has been updated
 459       to filter by &man.jail.8; ID or name, in followup to the
 460       &man.ps.1; change in <literal>r265229</literal>.</para>
 461
 462     <para revision="265995">The Blowfish &man.crypt.3; default format
 463       has been changed to
 464       <literal>&dollar;2b&dollar;</literal>.</para>
 465
 466     <para revision="266209">The &man.pmcstat.8; utility has been
 467       updated to include a new flag, <literal>-l</literal>, which
 468       ends event collection after the specified number of
 469       seconds.</para>
 470
 471     <para revision="266463">The default &man.newsyslog.conf.5; now
 472       includes files in the
 473       <filename>/etc/newsyslog.conf.d/</filename> and
 474       <filename>/usr/local/etc/newsyslog.conf.d/</filename>
 475       directories by default for &man.newsyslog.8;.</para>
 476
 477     <para revision="268461">The &man.readline.3; library is now
 478       statically linked in software within the base system, and the
 479       shared library is no longer installed, allowing the Ports
 480       Collection to use a modern version of the library.</para>
 481
 482     <para revision="270675">The &man.mailwrapper.8; utility has been
 483       updated to use &man.mailer.conf.5; from the
 484       <literal>LOCALBASE</literal> environment variable, which
 485       defaults to <filename class="directory">/usr/local</filename>
 486       if unset.</para>
 487
 488     <para revision="270745">The &man.ps.1; utility has been updated
 489       to include a new keyword, <quote>tracer</quote>, which displays
 490       the parent <acronym>PID</acronym> of a child process.</para>
 491
 492     <para revision="271482">Support for adding empty partitions has
 493       been added to the &man.mkimg.1; utility.</para>
 494
 495     <para revision="272166">The &man.primes.6; utility has been
 496       updated to correctly enumerate prime numbers between
 497       <literal>4295098369</literal> and
 498       <literal>3825123056546413050</literal>, which prior to this
 499       change, it would be possible for returned values to be
 500       incorrectly identified as prime numbers.</para>
 501
 502     <para revision="272198">The &man.mkimg.1; utility has been
 503       updated to include three options used to print information
 504       about &man.mkimg.1; itself:</para>
 505
 506     <informaltable frame="none" pgwide="0">
 507       <tgroup cols="2">
 508         <colspec colwidth="1*"/>
 509         <colspec colwidth="1*"/>
 510         <thead>
 511           <row>
 512             <entry>Option</entry>
 513             <entry>Output</entry>
 514           </row>
 515         </thead>
 516
 517         <tbody>
 518           <row>
 519             <entry><literal>--version</literal></entry>
 520             <entry>The current version of the &man.mkimg.1;
 521               utility</entry>
 522           </row>
 523
 524           <row>
 525             <entry><literal>--formats</literal></entry>
 526             <entry>The disk image file formats supported by
 527               &man.mkimg.1;</entry>
 528           </row>
 529
 530           <row>
 531             <entry><literal>--schemes</literal></entry>
 532             <entry>The partition schemes supported by
 533               &man.mkimg.1;</entry>
 534           </row>
 535         </tbody>
 536       </tgroup>
 537     </informaltable>
 538
 539     <para revision="272273">The &man.strptime.3; library has been
 540       updated to add support for <acronym>POSIX</acronym>-2001
 541       features <literal>%U</literal> and <literal>%W</literal>.</para>
 542
 543     <para revision="272274">The &os; installation utility,
 544       &man.bsdinstall.8;, has been updated to set the
 545       <literal>canmount</literal> &man.zfs.8; property to
 546       <literal>off</literal> for the
 547       <filename class="directory">/var</filename> dataset, preventing
 548       the contents of directories within <filename
 549         class="directory">/var</filename> from conflicting when using
 550       multiple boot environments, such as that provided by <filename
 551         role="package">sysutils/beadm</filename>.</para>
 552
 553     <para revision="272350">The <literal>MK_ARM_EABI</literal>
 554       &man.src.conf.5; option has been removed.</para>
 555
 556     <para revision="272488">Userland &man.ctf.5; support in
 557       &man.dtrace.1; has been added.  With this change, &man.dtrace.1;
 558       is able to resolve type info for function and
 559       <acronym>USDT</acronym> probe arguments, and function return
 560       values.</para>
 561
 562     <para revision="272842,272848" contrib="sponsor"
 563       sponsor="&ff;">The &man.dl.iterate.phdr.3; library has been
 564       changed to always return the path name of the
 565       <acronym>ELF</acronym> object in the
 566       <literal>dlpi_name</literal> structure member.</para>
 567
 568     <sect3 xml:id="abi-compat">
 569       <title><acronym>ABI</acronym> Compatibility</title>
 570
 571       <para revision="271982">The &linux; compatiblity version has
 572         been updated to <literal>2.6.18</literal>.  The
 573         <literal>compat.linux.osrelease</literal> &man.sysctl.8; is
 574         evaluated when building the <filename
 575           role="package">emulators/linux-c6</filename> and related
 576         ports.</para>
 577     </sect3>
 578
 579     <sect3 xml:id="rc-scripts">
 580       <title><filename>/etc/rc.d</filename> Scripts</title>
 581
 582       <para revision="270676">The &man.rc.8; subsystem has been
 583         updated to allow configuring services in <filename
 584           class="directory">&dollar;{LOCALBASE}/etc/rc.conf.d/</filename>.
 585         If <literal>LOCALBASE</literal> is unset, it defaults to
 586         <filename class="directory">/usr/local</filename>.</para>
 587     </sect3>
 588
 589     <sect3 xml:id="periodic-scripts">
 590       <title><filename>/etc/periodic</filename> Scripts</title>
 591
 592       <para revision="271321">The daily &man.periodic.8; script
 593         <filename>110.clean-tmps</filename> has been updated to
 594         avoid crossing filesystem mount boundaries when cleaning
 595         files in <filename class="directory">/tmp</filename>.</para>
 596     </sect3>
 597   </sect2>
 598
 599   <sect2 xml:id="contrib">
 600     <title>Contributed Software</title>
 601
 602     <para revision="258884" contrib="sponsor"
 603       sponsor="&darpa_afrl;">&man.lldb.1; has been updated to upstream
 604       snapshot version r196259.</para>
 605
 606     <para revision="259626">Timezone data files have been updated to
 607       version 2013i.</para>
 608
 609     <para revision="260445">&man.byacc.1; has been updated to version
 610       20140101.</para>
 611
 612     <para revision="261071">&man.jemalloc.3; has been updated to
 613       version 3.5.0.</para>
 614
 615     <para revision="261212"><application>bmake</application> has been
 616       updated to version 20140101.</para>
 617
 618     <para revision="261283"><application>libc++</application> has been
 619       updated to version 3.4.</para>
 620
 621     <para revision="261320"><application>OpenSSH</application> has
 622       been updated to 6.5p1.</para>
 623
 624     <para revision="261344"><application>mdocml</application> has been
 625       updated to version 1.12.3.</para>
 626
 627     <para revision="261991"><application>LLVM</application> and
 628       <application>Clang</application> have been updated to
 629       version 3.4.</para>
 630
 631     <para revision="266527" role="merged"><application>Sendmail</application>
 632       has been updated from 8.14.7 to 8.14.9.</para>
 633
 634     <para revision="267256"><application>OpenSSL</application> has
 635       been updated to version 1.0.1h.</para>
 636
 637     <para revision="276577"><application>file</application> has been
 638       updated to version 5.22.</para>
 639
 640     <para revision="273146"><application>OpenSSL</application> has
 641       been updated to version 1.0.1j.</para>
 642   </sect2>
 643
 644   <sect2 xml:id="ports">
 645     <title>Ports/Packages Collection Infrastructure</title>
 646
 647     <para>&nbsp;</para>
 648   </sect2>
 649
 650   <sect2 xml:id="releng">
 651     <title>Release Engineering and Integration</title>
 652
 653     <para>&nbsp;</para>
 654   </sect2>
 655
 656   <sect2 xml:id="doc">
 657     <title>Documentation</title>
 658
 659     <para>&nbsp;</para>
 660   </sect2>
 661 </sect1>
 662
 663 <sect1 xml:id="upgrade">
 664   <title>Upgrading from previous releases of &os;</title>
 665
 666   <para arch="amd64,i386">Binary upgrades between RELEASE versions
 667     (and snapshots of the various security branches) are supported
 668     using the &man.freebsd-update.8; utility.  The binary upgrade
 669     procedure will update unmodified userland utilities, as well as
 670     unmodified GENERIC kernels distributed as a part of an official
 671     &os; release.  The &man.freebsd-update.8; utility requires that
 672     the host being upgraded have Internet connectivity.</para>
 673
 674   <para>Source-based upgrades (those based on recompiling the &os;
 675     base system from source code) from previous versions are
 676     supported, according to the instructions in
 677     <filename>/usr/src/UPDATING</filename>.</para>
 678
 679   <important>
 680     <para>Upgrading &os; should only be attempted after backing up
 681       <emphasis>all</emphasis> data and configuration files.</para>
 682   </important>
 683 </sect1>
 684 </article>