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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="298427">The &man.truss.1; utility has been
 187         updated to include the <literal>-H</literal> flag, which logs
 188         the thread ID of a thread invoking a system call.</para>
 189
 190       <para revision="308915">The &man.zfsbootcfg.8; utility has been
 191         added, providing one-time &man.boot.config.5;-style options
 192         for &man.zfsboot.8;.</para>
 193
 194       <para revision="319390">The &man.cxgbetool.8; utility has been
 195         added, providing command-line access to features and debugging
 196         facilities of &man.cxgbe.4; devices.</para>
 197
 198       <para revision="320646">The &man.rcp.1;, &man.rlogin.1;,
 199         &man.rsh.1;, &man.ruptime.1;, &man.rwho.1;, &man.rlogind.8;,
 200         &man.rshd.8;, and &man.rwhod.8; utilities have been marked as
 201         deprecated, and planned for removal in
 202         &os;&nbsp;12.0-RELEASE.</para>
 203
 204       <para revision="320824">The &man.gdb.1; and &man.kgdb.1;
 205         utilities have been marked as deprecated, and planned for
 206         removal from the base system in the future.  A newer version
 207         is available in the <filename
 208           role="package">devel/gdb</filename> port.</para>
 209
 210       <para revision="321242">The &man.cron.8; utility has been
 211         updated to add support for including files within <filename
 212           class="directory">/etc/cron.d</filename> and <filename
 213           class="directory">/usr/local/etc/cron.d</filename> by
 214         default.</para>
 215
 216       <para revision="321234">The &man.syslogd.8; utility has been
 217         updated to add the <literal>include</literal> keyword which
 218         allows specifying a directory containing configuration files
 219         to be included in addition to &man.syslog.conf.5;.  The
 220         default &man.syslog.conf.5; has been updated to include
 221         <filename class="directory">/etc/syslog.d</filename> and
 222         <filename class="directory">/usr/local/etc/syslog.d</filename>
 223         by default.</para>
 224
 225       <para revision="321263">The &man.newsyslog.8; utility has been
 226         updated to support logging to &man.syslogd.8; in a format
 227         compliant with RFC5424.  For more details, see the description
 228         for the <literal>T</literal> flag in
 229         &man.newsyslog.conf.5;.</para>
 230     </sect2>
 231
 232     <sect2 xml:id="userland-contrib">
 233       <title>Contributed Software</title>
 234
 235       <para revision="309512"><application>Subversion</application>
 236         has been updated to version 1.9.5.</para>
 237
 238       <para revision="309848">&man.file.1; has been updated to version
 239         5.29.</para>
 240
 241       <para revision="310490">The &man.amd.8; utility has been updated
 242         to version 6.2.</para>
 243
 244       <para revision="312516">&man.xz.1; has been updated to version
 245         5.2.3.</para>
 246
 247       <para revision="313796">&man.zlib.3; has been updated to version
 248         1.2.11.</para>
 249
 250       <para revision="316069">&man.ntpd.8; has been updated to version
 251         4.2.8p10.</para>
 252
 253       <para revision="316350">Timezone data files have been updated to
 254         version 2017b.</para>
 255
 256       <para revision="316958">&man.tcsh.1; has been updated to version
 257         6.20.00.</para>
 258
 259       <para revision="321304">&man.libarchive.3; has been updated to
 260         version 3.3.2.</para>
 261     </sect2>
 262
 263     <sect2 xml:id="userland-installer">
 264       <title>Installation and Configuration Tools</title>
 265
 266       <para revision="321202" contrib="sponsor" sponsor="&ff;">The
 267         default <acronym>EFI</acronym> partition created by
 268         &man.bsdinstall.8; has been increased from 800KB to
 269         200MB.</para>
 270     </sect2>
 271
 272     <sect2 xml:id="userland-rc">
 273       <title><filename class="directory">/etc/rc.d</filename>
 274         Scripts</title>
 275
 276       <para>&nbsp;</para>
 277     </sect2>
 278
 279     <sect2 xml:id="userland-periodic">
 280       <title><filename class="directory">/etc/periodic</filename>
 281         Scripts</title>
 282
 283       <para>&nbsp;</para>
 284     </sect2>
 285
 286     <sect2 xml:id="userland-libraries">
 287       <title>Runtime Libraries and API</title>
 288
 289       <para revision="316040">The &man.kvm.close.3; function has been
 290         updated to return the accumulated error from previous
 291         &man.close.2; calls.</para>
 292     </sect2>
 293
 294     <sect2 xml:id="userland-abi">
 295       <title>ABI Compatibility</title>
 296
 297       <para revision="309258">The type <literal>max_align_t</literal>
 298         is now defined for C11 compliance.</para>
 299     </sect2>
 300
 301     <sect2 xml:id="userland-debug">
 302       <title>Userland Debugging</title>
 303
 304       <para revision="304017">&man.ptrace.2; now supports events for
 305         thread creation and destruction, permitting more reliable
 306         debugging of threaded processes.</para>
 307
 308       <para revision="304499">&man.ptrace.2; now supports events for
 309         &man.vfork.2;, permitting reliable debugging across
 310         &man.vfork.2; invocations.</para>
 311
 312       <para revision="306786">Process core dumps now include the
 313         process ID (<acronym>PID</acronym>) and command line
 314         arguments.</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-misc">
 326       <title>Miscellaneous Kernel Changes</title>
 327
 328       <para revision="321198">The &man.vt.4; driver has been updated,
 329         increasing the maximum framebuffer size.</para>
 330     </sect2>
 331
 332     <sect2 xml:id="kernel-bugfix">
 333       <title>Kernel Bug Fixes</title>
 334
 335       <para revision="317434">The &man.ipf.4; packet filter has been
 336         updated to prevent <literal>keep state</literal> from
 337         incorrectly implying <literal>keep frags</literal>, matching
 338         the behavior documented in &man.ipf.5;.</para>
 339     </sect2>
 340
 341     <sect2 xml:id="kernel-config">
 342       <title>Kernel Configuration</title>
 343
 344       <para>&nbsp;</para>
 345     </sect2>
 346
 347     <sect2 xml:id="kernel-sysctl">
 348       <title>System Tuning and Controls</title>
 349
 350       <para revision="321024">The
 351         <literal>kern.features.linux</literal> and
 352         <literal>kern.features.linux64</literal> flags have been
 353         added to the <literal>kern.features</literal> &man.sysctl.8;,
 354         which when set to <literal>1</literal>, indicate the kernel
 355         is configured with compatibility for 32-bit and/or 64-bit
 356         linux binaries, respectively.</para>
 357     </sect2>
 358   </sect1>
 359
 360   <sect1 xml:id="drivers">
 361     <title>Devices and Drivers</title>
 362
 363     <para>This section covers changes and additions to devices and
 364       device drivers since &release.prev;.</para>
 365
 366     <sect2 xml:id="drivers-device">
 367       <title>Device Drivers</title>
 368
 369       <para revision="306533" contrib="sponsor"
 370         sponsor="&chelsio;">&man.devctl.8; now supports a &quot;clear
 371         driver&quot; command as a complement to &quot;set
 372         driver&quot;.</para>
 373     </sect2>
 374
 375     <sect2 xml:id="drivers-storage">
 376       <title>Storage Drivers</title>
 377
 378       <para revision="319436">The &man.mpr.4; driver has been updated
 379         to support tri-mode
 380         (<acronym>SAS</acronym>/<acronym>SATA</acronym>/<acronym>PCIe</acronym>)
 381         Broadcom&reg; storage adapters.</para>
 382
 383       <para revision="321067">The &man.arcmsr.4; driver has been
 384         updated to version 1.40.00.00, adding support for ARC-1884
 385         <acronym>SATA</acronym> controllers.</para>
 386     </sect2>
 387
 388     <sect2 xml:id="drivers-network">
 389       <title>Network Drivers</title>
 390
 391       <para revision="309447" contrib="sponsor"
 392         sponsor="&chelsio;">The &man.cxgbev.4; driver has been added,
 393         providing support for Virtual Function devices
 394         (<acronym>VFs</acronym>) on Chelsio T4 and T5 adapters.</para>
 395
 396       <para revision="309560" contrib="sponsor"
 397         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 398         to provide support for Virtual Function devices
 399         (<acronym>VFs</acronym>) on Chelsio T6 adapters.</para>
 400
 401       <para revision="309560" contrib="sponsor"
 402         sponsor="&chelsio;">The &man.cxgbe.4; driver now supports
 403         devices using T6-based adapters which support 10, 25, 40, and
 404         100 Gbps.</para>
 405
 406       <para revision="312359">The &man.alc.4; driver has been updated
 407         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 408         Gigabit ethernet cards.</para>
 409
 410       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 411         &man.alc.4; driver has been updated to provide support for
 412         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 413         cards.</para>
 414
 415       <para revision="316485">The &man.qlnxe.4; driver has been added,
 416         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 417         adapters.</para>
 418
 419       <para revision="319270" contrib="sponsor"
 420         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 421         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 422     </sect2>
 423   </sect1>
 424
 425   <sect1 xml:id="hardware">
 426     <title>Hardware Support</title>
 427
 428     <para>This section covers general hardware support for physical
 429       machines, hypervisors, and virtualization environments, as well
 430       as hardware changes and updates that do not otherwise fit in
 431       other sections of this document.</para>
 432
 433     <sect2 xml:id="hardware-support">
 434       <title>Hardware Support</title>
 435
 436       <para>&nbsp;</para>
 437     </sect2>
 438
 439     <sect2 xml:id="hardware-virtualization">
 440       <title>Virtualization Support</title>
 441
 442       <para revision="306520" contrib="sponsor"
 443         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 444         &man.bhyve.4; resets functions via <acronym>FLR</acronym> when
 445         a virtual machine is started and stopped.</para>
 446
 447       <para revision="306472" contrib="sponsor"
 448         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 449         &man.bhyve.4; supports more dynamic configurations permitting
 450         devices to be marked for passthrough or host use at
 451         runtime.</para>
 452     </sect2>
 453
 454     <sect2 xml:id="hardware-arm">
 455       <title>ARM Support</title>
 456
 457       <para>&nbsp;</para>
 458     </sect2>
 459   </sect1>
 460
 461   <sect1 xml:id="storage">
 462     <title>Storage</title>
 463
 464     <para>This section covers changes and additions to file systems
 465       and other storage subsystems, both local and networked.</para>
 466
 467     <sect2 xml:id="storage-general">
 468       <title>General Storage</title>
 469
 470       <para>&nbsp;</para>
 471     </sect2>
 472
 473     <sect2 xml:id="storage-net">
 474       <title>Networked Storage</title>
 475
 476       <para revision="318675">The <acronym>NFS</acronym> client now
 477         properly handles <literal>NFS4ERR_BAD_SESSION</literal> errors
 478         received from an <acronym>NFS</acronym> server.  Additionally,
 479         the kernel <acronym>RPC</acronym> client has been updated to
 480         prevent creating new <acronym>TCP</acronym> connections when
 481         <literal>ERESTART</literal> is received from
 482         &man.sosend.9;.</para>
 483
 484       <para revision="321031">The <acronym>NFS</acronym> client has
 485         been updated to support <acronym>pNFS</acronym>
 486         <literal>commit</literal> through the
 487         <literal>DS</literal>.</para>
 488     </sect2>
 489
 490     <sect2 xml:id="storage-zfs">
 491       <title>ZFS</title>
 492
 493       <para></para>
 494     </sect2>
 495
 496     <sect2 xml:id="storage-geom">
 497       <title>&man.geom.4;</title>
 498
 499       <para>&nbsp;</para>
 500     </sect2>
 501   </sect1>
 502
 503   <sect1 xml:id="boot">
 504     <title>Boot Loader Changes</title>
 505
 506     <para>This section covers the boot loader, boot menu, and other
 507       boot-related changes.</para>
 508
 509     <sect2 xml:id="boot-loader">
 510       <title>Boot Loader Changes</title>
 511
 512       <para>&nbsp;</para>
 513     </sect2>
 514
 515     <sect2 xml:id="boot-menu">
 516       <title>Boot Menu Changes</title>
 517
 518       <para>&nbsp;</para>
 519     </sect2>
 520   </sect1>
 521
 522   <sect1 xml:id="network">
 523     <title>Networking</title>
 524
 525     <para>This section describes changes that affect networking in
 526       &os;.</para>
 527
 528     <sect2 xml:id="network-general">
 529       <title>General Networking Changes</title>
 530
 531       <para revision="313558" contrib="sponsor"
 532         sponsor="&dellemc;">The network stack has been modified to fix
 533         incorrect or invalid <acronym>IP</acronym> addresses if
 534         multiple threads emit a <acronym>UDP</acronym>
 535         <literal>log_in_vain</literal> message concurrently.</para>
 536
 537       <para revision="317375" contrib="sponsor"
 538         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 539         been changed to use the estimated <acronym>RTT</acronym>
 540         instead of timestamps for receive buffer auto resizing.</para>
 541     </sect2>
 542
 543     <sect2 xml:id="network-protocols">
 544       <title>Network Protocols</title>
 545
 546       <para revision="309340" contrib="sponsor"
 547         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 548         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 549         A new &man.sysctl.8;,
 550         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 551         been added, which sets the maximum number of retransmissions
 552         when set to a non-zero value.</para>
 553     </sect2>
 554   </sect1>
 555
 556   <sect1 xml:id="ports">
 557     <title>Ports Collection and Package Infrastructure</title>
 558
 559     <para>This section covers changes to the &os;&nbsp;Ports
 560       Collection, package infrastructure, and package maintenance and
 561       installation tools.</para>
 562
 563     <sect2 xml:id="ports-infrastructure">
 564       <title>Infrastructure Changes</title>
 565
 566       <para>&nbsp;</para>
 567     </sect2>
 568
 569     <sect2 xml:id="ports-packages ">
 570       <title>Packaging Changes</title>
 571
 572       <para>&nbsp;</para>
 573     </sect2>
 574   </sect1>
 575
 576   <sect1 xml:id="doc">
 577     <title>Documentation</title>
 578
 579     <para>This section covers changes to the &os;&nbsp;Documentation
 580       Project sources and toolchain.</para>
 581
 582     <sect2 xml:id="doc-sources">
 583       <title>Documentation Source Changes</title>
 584
 585       <para>&nbsp;</para>
 586     </sect2>
 587
 588     <sect2 xml:id="doc-toolchain">
 589       <title>Documentation Toolchain Changes</title>
 590
 591       <para>&nbsp;</para>
 592     </sect2>
 593   </sect1>
 594
 595   <sect1 xml:id="releng">
 596     <title>Release Engineering and Integration</title>
 597
 598     <para>This section convers changes that are specific to the
 599       &os;&nbsp;Release Engineering processes.</para>
 600
 601     <sect2 xml:id="releng-changes">
 602       <title>Integration Changes</title>
 603
 604       <para>&nbsp;</para>
 605     </sect2>
 606   </sect1>
 607 </article>