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  20
  21   <info>
  22     <title>&os; &release.current; Release Notes</title>
  23
  24     <author>
  25       <orgname>The &os; Project</orgname>
  26     </author>
  27
  28     <pubdate>$FreeBSD$</pubdate>
  29
  30     <copyright>
  31       <year>2017</year>
  32       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  33         Project</holder>
  34     </copyright>
  35
  36     <legalnotice xml:id="trademarks" role="trademarks">
  37       &tm-attrib.freebsd;
  38       &tm-attrib.ibm;
  39       &tm-attrib.ieee;
  40       &tm-attrib.intel;
  41       &tm-attrib.sparc;
  42       &tm-attrib.general;
  43     </legalnotice>
  44
  45     <abstract>
  46       <para>The release notes for &os; &release.current; contain
  47         a summary of the changes made to the &os; base system on the
  48         &release.branch; development line.  This document lists
  49         applicable security advisories that were issued since the last
  50         release, as well as significant changes to the &os; kernel and
  51         userland.  Some brief remarks on upgrading are also
  52         presented.</para>
  53     </abstract>
  54   </info>
  55
  56   <sect1 xml:id="intro">
  57     <title>Introduction</title>
  58
  59     <para>This document contains the release notes for &os;
  60       &release.current;.  It describes recently added, changed, or
  61       deleted features of &os;.  It also provides some notes on
  62       upgrading from previous versions of &os;.</para>
  63
  64     <para releasetype="current">The &release.type; distribution to
  65       which these release notes apply represents the latest point
  66       along the &release.branch; development branch since
  67       &release.branch; was created.  Information regarding pre-built,
  68       binary &release.type; distributions along this branch can be
  69       found at <uri
  70         xlink:href="&release.url;">&release.url;</uri>.</para>
  71
  72     <para releasetype="snapshot">The &release.type; distribution to
  73       which these release notes apply represents a point along the
  74       &release.branch; development branch between &release.prev; and
  75       the future &release.next;.  Information regarding pre-built,
  76       binary &release.type; distributions along this branch can be
  77       found at <uri
  78         xlink:href="&release.url;">&release.url;</uri>.</para>
  79
  80     <para releasetype="release">This distribution of &os;
  81       &release.current; is a &release.type; distribution.  It can be
  82       found at <uri xlink:href="&release.url;">&release.url;</uri> or
  83       any of its mirrors.  More information on obtaining this (or
  84       other) &release.type; distributions of &os; can be found in the
  85       <link
  86         xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
  87           &os;</quote> appendix</link> to the <link
  88         xlink:href="&url.books.handbook;/">&os;
  89         Handbook</link>.</para>
  90
  91     <para>All users are encouraged to consult the release errata
  92       before installing &os;.  The errata document is updated with
  93       <quote>late-breaking</quote> information discovered late in the
  94       release cycle or after the release.  Typically, it contains
  95       information on known bugs, security advisories, and corrections
  96       to documentation.  An up-to-date copy of the errata for &os;
  97       &release.current; can be found on the &os; Web site.</para>
  98
  99     <para>This document describes the most user-visible new or changed
 100       features in &os; since &release.prev;.</para>
 101
 102     <para>Typical release note items document recent security
 103       advisories issued after &release.prev;, new drivers or hardware
 104       support, new commands or options, major bug fixes, or
 105       contributed software upgrades.  They may also list changes to
 106       major ports/packages or release engineering practices.  Clearly
 107       the release notes cannot list every single change made to &os;
 108       between releases; this document focuses primarily on security
 109       advisories, user-visible changes, and major architectural
 110       improvements.</para>
 111   </sect1>
 112
 113   <sect1 xml:id="upgrade">
 114     <title>Upgrading from Previous Releases of &os;</title>
 115
 116     <para arch="amd64,i386">Binary upgrades between RELEASE versions
 117       (and snapshots of the various security branches) are supported
 118       using the &man.freebsd-update.8; utility.  The binary upgrade
 119       procedure will update unmodified userland utilities, as well as
 120       unmodified <filename>GENERIC</filename> kernel distributed as
 121       a part of an official &os; release.  The &man.freebsd-update.8;
 122       utility requires that the host being upgraded have Internet
 123       connectivity.</para>
 124
 125     <para>Source-based upgrades (those based on recompiling the &os;
 126       base system from source code) from previous versions are
 127       supported, according to the instructions in
 128       <filename>/usr/src/UPDATING</filename>.</para>
 129
 130     <important>
 131       <para>Upgrading &os; should only be attempted after
 132         backing up <emphasis>all</emphasis> data and configuration
 133         files.</para>
 134     </important>
 135   </sect1>
 136
 137   <sect1 xml:id="security-errata">
 138     <title>Security and Errata</title>
 139
 140     <para>This section lists the various Security Advisories and
 141       Errata Notices since &release.prev;.</para>
 142
 143     <sect2 xml:id="security">
 144       <title>Security Advisories</title>
 145
 146       &security;
 147     </sect2>
 148
 149     <sect2 xml:id="errata">
 150       <title>Errata Notices</title>
 151
 152       &errata;
 153     </sect2>
 154   </sect1>
 155
 156   <sect1 xml:id="userland">
 157     <title>Userland</title>
 158
 159     <para>This section covers changes and additions to userland
 160       applications, contributed software, and system utilities.</para>
 161
 162     <sect2 xml:id="userland-config">
 163       <title>Userland Configuration Changes</title>
 164
 165       <para revision="313206">The &man.inetd.8; utility is now built
 166         without <literal>libwrap</literal> support when
 167         <literal>WITHOUT_TCP_WRAPPERS</literal> is set in
 168         &man.src.conf.5;.</para>
 169
 170       <para revision="316046">The &man.libthr.3; library and related
 171         files are now evaluated and removed by the
 172         <literal>delete-old-libs</literal> target when upgrading the
 173         system if <literal>WITHOUT_LIBTHR</literal> is
 174         set in &man.src.conf.5;.</para>
 175
 176       <para revision="319243">The
 177         <literal>WITH_RPCBIND_WARMSTART_SUPPORT</literal>
 178         &man.src.conf.5; knob has been added, which when enabled
 179         allows building &man.rpcbind.8; with
 180         <literal>warmstart</literal> support.</para>
 181     </sect2>
 182
 183     <sect2 xml:id="userland-programs">
 184       <title>Userland Application Changes</title>
 185
 186       <para revision="308915">The &man.zfsbootcfg.8; utility has been
 187         added, providing one-time &man.boot.config.5;-style options
 188         for &man.zfsboot.8;.</para>
 189     </sect2>
 190
 191     <sect2 xml:id="userland-contrib">
 192       <title>Contributed Software</title>
 193
 194       <para revision="309512"><application>Subversion</application>
 195         has been updated to version 1.9.5.</para>
 196
 197       <para revision="309848">&man.file.1; has been updated to version
 198         5.29.</para>
 199
 200       <para revision="310490">The &man.amd.8; utility has been updated
 201         to version 6.2.</para>
 202
 203       <para revision="312516">&man.xz.1; has been updated to version
 204         5.2.3.</para>
 205
 206       <para revision="313796">&man.zlib.3; has been updated to version
 207         1.2.11.</para>
 208
 209       <para revision="315433">&man.libarchive.3; has been updated to
 210         version 3.3.1.</para>
 211
 212       <para revision="316069">&man.ntpd.8; has been updated to version
 213         4.2.8p10.</para>
 214
 215       <para revision="316350">Timezone data files have been updated to
 216         version 2017b.</para>
 217
 218       <para revision="316958">&man.tcsh.1; has been updated to version
 219         6.20.00.</para>
 220     </sect2>
 221
 222     <sect2 xml:id="userland-installer">
 223       <title>Installation and Configuration Tools</title>
 224
 225       <para>&nbsp;</para>
 226     </sect2>
 227
 228     <sect2 xml:id="userland-rc">
 229       <title><filename class="directory">/etc/rc.d</filename>
 230         Scripts</title>
 231
 232       <para>&nbsp;</para>
 233     </sect2>
 234
 235     <sect2 xml:id="userland-periodic">
 236       <title><filename class="directory">/etc/periodic</filename>
 237         Scripts</title>
 238
 239       <para>&nbsp;</para>
 240     </sect2>
 241
 242     <sect2 xml:id="userland-libraries">
 243       <title>Runtime Libraries and API</title>
 244
 245       <para revision="316040">The &man.kvm.close.3; function has been
 246         updated to return the accumulated error from previous
 247         &man.close.2; calls.</para>
 248     </sect2>
 249
 250     <sect2 xml:id="userland-abi">
 251       <title>ABI Compatibility</title>
 252
 253       <para>&nbsp;</para>
 254     </sect2>
 255   </sect1>
 256
 257   <sect1 xml:id="kernel">
 258     <title>Kernel</title>
 259
 260     <para>This section covers changes to kernel configurations, system
 261       tuning, and system control parameters that are not otherwise
 262       categorized.</para>
 263
 264     <sect2 xml:id="kernel-bugfix">
 265       <title>Kernel Bug Fixes</title>
 266
 267       <para revision="317434">The &man.ipf.4; packet filter has been
 268         updated to prevent <literal>keep state</literal> from
 269         incorrectly implying <literal>keep frags</literal>, matching
 270         the behavior documented in &man.ipf.5;.</para>
 271     </sect2>
 272
 273     <sect2 xml:id="kernel-config">
 274       <title>Kernel Configuration</title>
 275
 276       <para>&nbsp;</para>
 277     </sect2>
 278
 279     <sect2 xml:id="kernel-sysctl">
 280       <title>System Tuning and Controls</title>
 281
 282       <para></para>
 283     </sect2>
 284   </sect1>
 285
 286   <sect1 xml:id="drivers">
 287     <title>Devices and Drivers</title>
 288
 289     <para>This section covers changes and additions to devices and
 290       device drivers since &release.prev;.</para>
 291
 292     <sect2 xml:id="drivers-device">
 293       <title>Device Drivers</title>
 294
 295       <para>&nbsp;</para>
 296     </sect2>
 297
 298     <sect2 xml:id="drivers-storage">
 299       <title>Storage Drivers</title>
 300
 301       <para></para>
 302     </sect2>
 303
 304     <sect2 xml:id="drivers-network">
 305       <title>Network Drivers</title>
 306
 307       <para revision="312359">The &man.alc.4; driver has been updated
 308         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 309         Gigabit ethernet cards.</para>
 310
 311       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 312         &man.alc.4; driver has been updated to provide support for
 313         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 314         cards.</para>
 315
 316       <para revision="316485">The &man.qlnxe.4; driver has been added,
 317         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 318         adapters.</para>
 319
 320       <para revision="319270" contrib="sponsor"
 321         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 322         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 323     </sect2>
 324   </sect1>
 325
 326   <sect1 xml:id="hardware">
 327     <title>Hardware Support</title>
 328
 329     <para>This section covers general hardware support for physical
 330       machines, hypervisors, and virtualization environments, as well
 331       as hardware changes and updates that do not otherwise fit in
 332       other sections of this document.</para>
 333
 334     <sect2 xml:id="hardware-support">
 335       <title>Hardware Support</title>
 336
 337       <para>&nbsp;</para>
 338     </sect2>
 339
 340     <sect2 xml:id="hardware-virtualization">
 341       <title>Virtualization Support</title>
 342
 343       <para></para>
 344     </sect2>
 345
 346     <sect2 xml:id="hardware-arm">
 347       <title>ARM Support</title>
 348
 349       <para>&nbsp;</para>
 350     </sect2>
 351   </sect1>
 352
 353   <sect1 xml:id="storage">
 354     <title>Storage</title>
 355
 356     <para>This section covers changes and additions to file systems
 357       and other storage subsystems, both local and networked.</para>
 358
 359     <sect2 xml:id="storage-general">
 360       <title>General Storage</title>
 361
 362       <para>&nbsp;</para>
 363     </sect2>
 364
 365     <sect2 xml:id="storage-net">
 366       <title>Networked Storage</title>
 367
 368       <para>&nbsp;</para>
 369     </sect2>
 370
 371     <sect2 xml:id="storage-zfs">
 372       <title>ZFS</title>
 373
 374       <para></para>
 375     </sect2>
 376
 377     <sect2 xml:id="storage-geom">
 378       <title>&man.geom.4;</title>
 379
 380       <para>&nbsp;</para>
 381     </sect2>
 382   </sect1>
 383
 384   <sect1 xml:id="boot">
 385     <title>Boot Loader Changes</title>
 386
 387     <para>This section covers the boot loader, boot menu, and other
 388       boot-related changes.</para>
 389
 390     <sect2 xml:id="boot-loader">
 391       <title>Boot Loader Changes</title>
 392
 393       <para>&nbsp;</para>
 394     </sect2>
 395
 396     <sect2 xml:id="boot-menu">
 397       <title>Boot Menu Changes</title>
 398
 399       <para>&nbsp;</para>
 400     </sect2>
 401   </sect1>
 402
 403   <sect1 xml:id="network">
 404     <title>Networking</title>
 405
 406     <para>This section describes changes that affect networking in
 407       &os;.</para>
 408
 409     <sect2 xml:id="network-general">
 410       <title>General Networking Changes</title>
 411
 412       <para revision="313558" contrib="sponsor"
 413         sponsor="&dellemc;">The network stack has been modified to fix
 414         incorrect or invalid <acronym>IP</acronym> addresses if
 415         multiple threads emit a <acronym>UDP</acronym>
 416         <literal>log_in_vain</literal> message concurrently.</para>
 417
 418       <para revision="317375" contrib="sponsor"
 419         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 420         been changed to use the estimated <acronym>RTT</acronym>
 421         instead of timestamps for receive buffer auto resizing.</para>
 422     </sect2>
 423
 424     <sect2 xml:id="network-protocols">
 425       <title>Network Protocols</title>
 426
 427       <para revision="309340" contrib="sponsor"
 428         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 429         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 430         A new &man.sysctl.8;,
 431         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 432         been added, which sets the maximum number of retransmissions
 433         when set to a non-zero value.</para>
 434     </sect2>
 435   </sect1>
 436
 437   <sect1 xml:id="ports">
 438     <title>Ports Collection and Package Infrastructure</title>
 439
 440     <para>This section covers changes to the &os;&nbsp;Ports
 441       Collection, package infrastructure, and package maintenance and
 442       installation tools.</para>
 443
 444     <sect2 xml:id="ports-infrastructure">
 445       <title>Infrastructure Changes</title>
 446
 447       <para>&nbsp;</para>
 448     </sect2>
 449
 450     <sect2 xml:id="ports-packages ">
 451       <title>Packaging Changes</title>
 452
 453       <para>&nbsp;</para>
 454     </sect2>
 455   </sect1>
 456
 457   <sect1 xml:id="doc">
 458     <title>Documentation</title>
 459
 460     <para>This section covers changes to the &os;&nbsp;Documentation
 461       Project sources and toolchain.</para>
 462
 463     <sect2 xml:id="doc-sources">
 464       <title>Documentation Source Changes</title>
 465
 466       <para>&nbsp;</para>
 467     </sect2>
 468
 469     <sect2 xml:id="doc-toolchain">
 470       <title>Documentation Toolchain Changes</title>
 471
 472       <para>&nbsp;</para>
 473     </sect2>
 474   </sect1>
 475
 476   <sect1 xml:id="releng">
 477     <title>Release Engineering and Integration</title>
 478
 479     <para>This section convers changes that are specific to the
 480       &os;&nbsp;Release Engineering processes.</para>
 481
 482     <sect2 xml:id="releng-changes">
 483       <title>Integration Changes</title>
 484
 485       <para>&nbsp;</para>
 486     </sect2>
 487   </sect1>
 488 </article>