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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 revision="309258">The type <literal>max_align_t</literal>
 254         is now defined for C11 compliance.</para>
 255     </sect2>
 256   </sect1>
 257
 258   <sect1 xml:id="kernel">
 259     <title>Kernel</title>
 260
 261     <para>This section covers changes to kernel configurations, system
 262       tuning, and system control parameters that are not otherwise
 263       categorized.</para>
 264
 265     <sect2 xml:id="kernel-bugfix">
 266       <title>Kernel Bug Fixes</title>
 267
 268       <para revision="317434">The &man.ipf.4; packet filter has been
 269         updated to prevent <literal>keep state</literal> from
 270         incorrectly implying <literal>keep frags</literal>, matching
 271         the behavior documented in &man.ipf.5;.</para>
 272     </sect2>
 273
 274     <sect2 xml:id="kernel-config">
 275       <title>Kernel Configuration</title>
 276
 277       <para>&nbsp;</para>
 278     </sect2>
 279
 280     <sect2 xml:id="kernel-sysctl">
 281       <title>System Tuning and Controls</title>
 282
 283       <para></para>
 284     </sect2>
 285   </sect1>
 286
 287   <sect1 xml:id="drivers">
 288     <title>Devices and Drivers</title>
 289
 290     <para>This section covers changes and additions to devices and
 291       device drivers since &release.prev;.</para>
 292
 293     <sect2 xml:id="drivers-device">
 294       <title>Device Drivers</title>
 295
 296       <para>&nbsp;</para>
 297     </sect2>
 298
 299     <sect2 xml:id="drivers-storage">
 300       <title>Storage Drivers</title>
 301
 302       <para></para>
 303     </sect2>
 304
 305     <sect2 xml:id="drivers-network">
 306       <title>Network Drivers</title>
 307
 308       <para revision="312359">The &man.alc.4; driver has been updated
 309         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 310         Gigabit ethernet cards.</para>
 311
 312       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 313         &man.alc.4; driver has been updated to provide support for
 314         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 315         cards.</para>
 316
 317       <para revision="316485">The &man.qlnxe.4; driver has been added,
 318         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 319         adapters.</para>
 320
 321       <para revision="319270" contrib="sponsor"
 322         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 323         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 324     </sect2>
 325   </sect1>
 326
 327   <sect1 xml:id="hardware">
 328     <title>Hardware Support</title>
 329
 330     <para>This section covers general hardware support for physical
 331       machines, hypervisors, and virtualization environments, as well
 332       as hardware changes and updates that do not otherwise fit in
 333       other sections of this document.</para>
 334
 335     <sect2 xml:id="hardware-support">
 336       <title>Hardware Support</title>
 337
 338       <para>&nbsp;</para>
 339     </sect2>
 340
 341     <sect2 xml:id="hardware-virtualization">
 342       <title>Virtualization Support</title>
 343
 344       <para></para>
 345     </sect2>
 346
 347     <sect2 xml:id="hardware-arm">
 348       <title>ARM Support</title>
 349
 350       <para>&nbsp;</para>
 351     </sect2>
 352   </sect1>
 353
 354   <sect1 xml:id="storage">
 355     <title>Storage</title>
 356
 357     <para>This section covers changes and additions to file systems
 358       and other storage subsystems, both local and networked.</para>
 359
 360     <sect2 xml:id="storage-general">
 361       <title>General Storage</title>
 362
 363       <para>&nbsp;</para>
 364     </sect2>
 365
 366     <sect2 xml:id="storage-net">
 367       <title>Networked Storage</title>
 368
 369       <para>&nbsp;</para>
 370     </sect2>
 371
 372     <sect2 xml:id="storage-zfs">
 373       <title>ZFS</title>
 374
 375       <para></para>
 376     </sect2>
 377
 378     <sect2 xml:id="storage-geom">
 379       <title>&man.geom.4;</title>
 380
 381       <para>&nbsp;</para>
 382     </sect2>
 383   </sect1>
 384
 385   <sect1 xml:id="boot">
 386     <title>Boot Loader Changes</title>
 387
 388     <para>This section covers the boot loader, boot menu, and other
 389       boot-related changes.</para>
 390
 391     <sect2 xml:id="boot-loader">
 392       <title>Boot Loader Changes</title>
 393
 394       <para>&nbsp;</para>
 395     </sect2>
 396
 397     <sect2 xml:id="boot-menu">
 398       <title>Boot Menu Changes</title>
 399
 400       <para>&nbsp;</para>
 401     </sect2>
 402   </sect1>
 403
 404   <sect1 xml:id="network">
 405     <title>Networking</title>
 406
 407     <para>This section describes changes that affect networking in
 408       &os;.</para>
 409
 410     <sect2 xml:id="network-general">
 411       <title>General Networking Changes</title>
 412
 413       <para revision="313558" contrib="sponsor"
 414         sponsor="&dellemc;">The network stack has been modified to fix
 415         incorrect or invalid <acronym>IP</acronym> addresses if
 416         multiple threads emit a <acronym>UDP</acronym>
 417         <literal>log_in_vain</literal> message concurrently.</para>
 418
 419       <para revision="317375" contrib="sponsor"
 420         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 421         been changed to use the estimated <acronym>RTT</acronym>
 422         instead of timestamps for receive buffer auto resizing.</para>
 423     </sect2>
 424
 425     <sect2 xml:id="network-protocols">
 426       <title>Network Protocols</title>
 427
 428       <para revision="309340" contrib="sponsor"
 429         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 430         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 431         A new &man.sysctl.8;,
 432         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 433         been added, which sets the maximum number of retransmissions
 434         when set to a non-zero value.</para>
 435     </sect2>
 436   </sect1>
 437
 438   <sect1 xml:id="ports">
 439     <title>Ports Collection and Package Infrastructure</title>
 440
 441     <para>This section covers changes to the &os;&nbsp;Ports
 442       Collection, package infrastructure, and package maintenance and
 443       installation tools.</para>
 444
 445     <sect2 xml:id="ports-infrastructure">
 446       <title>Infrastructure Changes</title>
 447
 448       <para>&nbsp;</para>
 449     </sect2>
 450
 451     <sect2 xml:id="ports-packages ">
 452       <title>Packaging Changes</title>
 453
 454       <para>&nbsp;</para>
 455     </sect2>
 456   </sect1>
 457
 458   <sect1 xml:id="doc">
 459     <title>Documentation</title>
 460
 461     <para>This section covers changes to the &os;&nbsp;Documentation
 462       Project sources and toolchain.</para>
 463
 464     <sect2 xml:id="doc-sources">
 465       <title>Documentation Source Changes</title>
 466
 467       <para>&nbsp;</para>
 468     </sect2>
 469
 470     <sect2 xml:id="doc-toolchain">
 471       <title>Documentation Toolchain Changes</title>
 472
 473       <para>&nbsp;</para>
 474     </sect2>
 475   </sect1>
 476
 477   <sect1 xml:id="releng">
 478     <title>Release Engineering and Integration</title>
 479
 480     <para>This section convers changes that are specific to the
 481       &os;&nbsp;Release Engineering processes.</para>
 482
 483     <sect2 xml:id="releng-changes">
 484       <title>Integration Changes</title>
 485
 486       <para>&nbsp;</para>
 487     </sect2>
 488   </sect1>
 489 </article>