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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.rlogind.8;, and &man.rshd.8; utilities have
 200         been marked as deprecated, and planned for removal in
 201         &os;&nbsp;12.0-RELEASE.</para>
 202
 203       <para revision="320772">The &man.syslogd.8; utility has been
 204         updated to restart logging a subprocess that had restarted
 205         unexpectedly.</para>
 206
 207       <para revision="320824">The &man.gdb.1; and &man.kgdb.1;
 208         utilities have been marked as deprecated, and planned for
 209         removal from the base system in the future.  A newer version
 210         is available in the <filename
 211           role="package">devel/gdb</filename> port.</para>
 212
 213       <para revision="321242">The &man.cron.8; utility has been
 214         updated to add support for including files within <filename
 215           class="directory">/etc/cron.d</filename> and <filename
 216           class="directory">/usr/local/etc/cron.d</filename> by
 217         default.</para>
 218
 219       <para revision="321234">The &man.syslogd.8; utility has been
 220         updated to add the <literal>include</literal> keyword which
 221         allows specifying a directory containing configuration files
 222         to be included in addition to &man.syslog.conf.5;.  The
 223         default &man.syslog.conf.5; has been updated to include
 224         <filename class="directory">/etc/syslog.d</filename> and
 225         <filename class="directory">/usr/local/etc/syslog.d</filename>
 226         by default.</para>
 227
 228       <para revision="321263">The &man.newsyslog.8; utility has been
 229         updated to support logging to &man.syslogd.8; in a format
 230         compliant with RFC5424.  For more details, see the description
 231         for the <literal>T</literal> flag in
 232         &man.newsyslog.conf.5;.</para>
 233     </sect2>
 234
 235     <sect2 xml:id="userland-contrib">
 236       <title>Contributed Software</title>
 237
 238       <para revision="309512"><application>Subversion</application>
 239         has been updated to version 1.9.5.</para>
 240
 241       <para revision="309848">&man.file.1; has been updated to version
 242         5.29.</para>
 243
 244       <para revision="310490">The &man.amd.8; utility has been updated
 245         to version 6.2.</para>
 246
 247       <para revision="312516">&man.xz.1; has been updated to version
 248         5.2.3.</para>
 249
 250       <para revision="313796">&man.zlib.3; has been updated to version
 251         1.2.11.</para>
 252
 253       <para revision="316069">&man.ntpd.8; has been updated to version
 254         4.2.8p10.</para>
 255
 256       <para revision="316350">Timezone data files have been updated to
 257         version 2017b.</para>
 258
 259       <para revision="316958">&man.tcsh.1; has been updated to version
 260         6.20.00.</para>
 261
 262       <para revision="321304">&man.libarchive.3; has been updated to
 263         version 3.3.2.</para>
 264
 265       <para revision="321964"><application>bmake</application> has
 266         been updated to version 20170720.</para>
 267
 268       <para revision="322244"><filename>pci_vendors</filename> has
 269         been updated to version 2017.07.27.</para>
 270     </sect2>
 271
 272     <sect2 xml:id="userland-installer">
 273       <title>Installation and Configuration Tools</title>
 274
 275       <para revision="321202" contrib="sponsor" sponsor="&ff;">The
 276         default <acronym>EFI</acronym> partition created by
 277         &man.bsdinstall.8; has been increased from 800KB to
 278         200MB.</para>
 279     </sect2>
 280
 281     <sect2 xml:id="userland-rc">
 282       <title><filename class="directory">/etc/rc.d</filename>
 283         Scripts</title>
 284
 285       <para>&nbsp;</para>
 286     </sect2>
 287
 288     <sect2 xml:id="userland-periodic">
 289       <title><filename class="directory">/etc/periodic</filename>
 290         Scripts</title>
 291
 292       <para>&nbsp;</para>
 293     </sect2>
 294
 295     <sect2 xml:id="userland-libraries">
 296       <title>Runtime Libraries and API</title>
 297
 298       <para revision="316040">The &man.kvm.close.3; function has been
 299         updated to return the accumulated error from previous
 300         &man.close.2; calls.</para>
 301
 302       <para revision="320312">The &man.syslog.3; function has been
 303         updated to be more resilent to thread cancellation occurring
 304         in supported deferred mode, eliminating possible lockups in
 305         multi-threaded applications that often create and cancel
 306         threads using the function, such as <filename
 307           role="package">net/mpd5</filename>.</para>
 308
 309       <para revision="321074">The &man.stdio.3; function has been
 310         updated to be deferred cancel-safe, eliminating possible
 311         lockups in multi-threaded applications using functions such
 312         as &man.funopen.3;, &man.fropen.3;, and &man.fwopen.3;.</para>
 313     </sect2>
 314
 315     <sect2 xml:id="userland-abi">
 316       <title>ABI Compatibility</title>
 317
 318       <para revision="309258">The type <literal>max_align_t</literal>
 319         is now defined for C11 compliance.</para>
 320     </sect2>
 321
 322     <sect2 xml:id="userland-debug">
 323       <title>Userland Debugging</title>
 324
 325       <para revision="304017">&man.ptrace.2; now supports events for
 326         thread creation and destruction, permitting more reliable
 327         debugging of threaded processes.</para>
 328
 329       <para revision="304499">&man.ptrace.2; now supports events for
 330         &man.vfork.2;, permitting reliable debugging across
 331         &man.vfork.2; invocations.</para>
 332
 333       <para revision="306786">Process core dumps now include the
 334         process ID (<acronym>PID</acronym>) and command line
 335         arguments.</para>
 336     </sect2>
 337   </sect1>
 338
 339   <sect1 xml:id="kernel">
 340     <title>Kernel</title>
 341
 342     <para>This section covers changes to kernel configurations, system
 343       tuning, and system control parameters that are not otherwise
 344       categorized.</para>
 345
 346     <sect2 xml:id="kernel-misc">
 347       <title>Miscellaneous Kernel Changes</title>
 348
 349       <para revision="321198">The &man.vt.4; driver has been updated,
 350         increasing the maximum framebuffer size.</para>
 351     </sect2>
 352
 353     <sect2 xml:id="kernel-bugfix">
 354       <title>Kernel Bug Fixes</title>
 355
 356       <para revision="317434">The &man.ipf.4; packet filter has been
 357         updated to prevent <literal>keep state</literal> from
 358         incorrectly implying <literal>keep frags</literal>, matching
 359         the behavior documented in &man.ipf.5;.</para>
 360     </sect2>
 361
 362     <sect2 xml:id="kernel-config">
 363       <title>Kernel Configuration</title>
 364
 365       <para>&nbsp;</para>
 366     </sect2>
 367
 368     <sect2 xml:id="kernel-sysctl">
 369       <title>System Tuning and Controls</title>
 370
 371       <para revision="321024">The
 372         <literal>kern.features.linux</literal> and
 373         <literal>kern.features.linux64</literal> flags have been
 374         added to the <literal>kern.features</literal> &man.sysctl.8;,
 375         which when set to <literal>1</literal>, indicate the kernel
 376         is configured with compatibility for 32-bit and/or 64-bit
 377         linux binaries, respectively.</para>
 378     </sect2>
 379   </sect1>
 380
 381   <sect1 xml:id="drivers">
 382     <title>Devices and Drivers</title>
 383
 384     <para>This section covers changes and additions to devices and
 385       device drivers since &release.prev;.</para>
 386
 387     <sect2 xml:id="drivers-device">
 388       <title>Device Drivers</title>
 389
 390       <para revision="306533" contrib="sponsor"
 391         sponsor="&chelsio;">&man.devctl.8; now supports a &quot;clear
 392         driver&quot; command as a complement to &quot;set
 393         driver&quot;.</para>
 394     </sect2>
 395
 396     <sect2 xml:id="drivers-storage">
 397       <title>Storage Drivers</title>
 398
 399       <para revision="319436">The &man.mpr.4; driver has been updated
 400         to support tri-mode
 401         (<acronym>SAS</acronym>/<acronym>SATA</acronym>/<acronym>PCIe</acronym>)
 402         Broadcom&reg; storage adapters.</para>
 403
 404       <para revision="321067">The &man.arcmsr.4; driver has been
 405         updated to version 1.40.00.00, adding support for ARC-1884
 406         <acronym>SATA</acronym> controllers.</para>
 407     </sect2>
 408
 409     <sect2 xml:id="drivers-network">
 410       <title>Network Drivers</title>
 411
 412       <para revision="309447" contrib="sponsor"
 413         sponsor="&chelsio;">The &man.cxgbev.4; driver has been added,
 414         providing support for Virtual Function devices
 415         (<acronym>VFs</acronym>) on Chelsio T4 and T5 adapters.</para>
 416
 417       <para revision="309560" contrib="sponsor"
 418         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 419         to provide support for Virtual Function devices
 420         (<acronym>VFs</acronym>) on Chelsio T6 adapters.</para>
 421
 422       <para revision="309560" contrib="sponsor"
 423         sponsor="&chelsio;">The &man.cxgbe.4; driver now supports
 424         devices using T6-based adapters which support 10, 25, 40, and
 425         100 Gbps.</para>
 426
 427       <para revision="312359">The &man.alc.4; driver has been updated
 428         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 429         Gigabit ethernet cards.</para>
 430
 431       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 432         &man.alc.4; driver has been updated to provide support for
 433         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 434         cards.</para>
 435
 436       <para revision="316485">The &man.qlnxe.4; driver has been added,
 437         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 438         adapters.</para>
 439
 440       <para revision="319270" contrib="sponsor"
 441         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 442         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 443     </sect2>
 444   </sect1>
 445
 446   <sect1 xml:id="hardware">
 447     <title>Hardware Support</title>
 448
 449     <para>This section covers general hardware support for physical
 450       machines, hypervisors, and virtualization environments, as well
 451       as hardware changes and updates that do not otherwise fit in
 452       other sections of this document.</para>
 453
 454     <sect2 xml:id="hardware-support">
 455       <title>Hardware Support</title>
 456
 457       <para>&nbsp;</para>
 458     </sect2>
 459
 460     <sect2 xml:id="hardware-virtualization">
 461       <title>Virtualization Support</title>
 462
 463       <para revision="306520" contrib="sponsor"
 464         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 465         &man.bhyve.4; resets functions via <acronym>FLR</acronym> when
 466         a virtual machine is started and stopped.</para>
 467
 468       <para revision="306472" contrib="sponsor"
 469         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 470         &man.bhyve.4; supports more dynamic configurations permitting
 471         devices to be marked for passthrough or host use at
 472         runtime.</para>
 473     </sect2>
 474
 475     <sect2 xml:id="hardware-arm">
 476       <title>ARM Support</title>
 477
 478       <para>&nbsp;</para>
 479     </sect2>
 480   </sect1>
 481
 482   <sect1 xml:id="storage">
 483     <title>Storage</title>
 484
 485     <para>This section covers changes and additions to file systems
 486       and other storage subsystems, both local and networked.</para>
 487
 488     <sect2 xml:id="storage-general">
 489       <title>General Storage</title>
 490
 491       <para>&nbsp;</para>
 492     </sect2>
 493
 494     <sect2 xml:id="storage-net">
 495       <title>Networked Storage</title>
 496
 497       <para revision="318675">The <acronym>NFS</acronym> client now
 498         properly handles <literal>NFS4ERR_BAD_SESSION</literal> errors
 499         received from an <acronym>NFS</acronym> server.  Additionally,
 500         the kernel <acronym>RPC</acronym> client has been updated to
 501         prevent creating new <acronym>TCP</acronym> connections when
 502         <literal>ERESTART</literal> is received from
 503         &man.sosend.9;.</para>
 504
 505       <para revision="321031">The <acronym>NFS</acronym> client has
 506         been updated to support <acronym>pNFS</acronym>
 507         <literal>commit</literal> through the
 508         <literal>DS</literal>.</para>
 509     </sect2>
 510
 511     <sect2 xml:id="storage-zfs">
 512       <title>ZFS</title>
 513
 514       <para></para>
 515     </sect2>
 516
 517     <sect2 xml:id="storage-geom">
 518       <title>&man.geom.4;</title>
 519
 520       <para>&nbsp;</para>
 521     </sect2>
 522   </sect1>
 523
 524   <sect1 xml:id="boot">
 525     <title>Boot Loader Changes</title>
 526
 527     <para>This section covers the boot loader, boot menu, and other
 528       boot-related changes.</para>
 529
 530     <sect2 xml:id="boot-loader">
 531       <title>Boot Loader Changes</title>
 532
 533       <para>&nbsp;</para>
 534     </sect2>
 535
 536     <sect2 xml:id="boot-menu">
 537       <title>Boot Menu Changes</title>
 538
 539       <para>&nbsp;</para>
 540     </sect2>
 541   </sect1>
 542
 543   <sect1 xml:id="network">
 544     <title>Networking</title>
 545
 546     <para>This section describes changes that affect networking in
 547       &os;.</para>
 548
 549     <sect2 xml:id="network-general">
 550       <title>General Networking Changes</title>
 551
 552       <para revision="313558" contrib="sponsor"
 553         sponsor="&dellemc;">The network stack has been modified to fix
 554         incorrect or invalid <acronym>IP</acronym> addresses if
 555         multiple threads emit a <acronym>UDP</acronym>
 556         <literal>log_in_vain</literal> message concurrently.</para>
 557
 558       <para revision="317375" contrib="sponsor"
 559         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 560         been changed to use the estimated <acronym>RTT</acronym>
 561         instead of timestamps for receive buffer auto resizing.</para>
 562     </sect2>
 563
 564     <sect2 xml:id="network-protocols">
 565       <title>Network Protocols</title>
 566
 567       <para revision="309340" contrib="sponsor"
 568         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 569         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 570         A new &man.sysctl.8;,
 571         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 572         been added, which sets the maximum number of retransmissions
 573         when set to a non-zero value.</para>
 574     </sect2>
 575   </sect1>
 576
 577   <sect1 xml:id="ports">
 578     <title>Ports Collection and Package Infrastructure</title>
 579
 580     <para>This section covers changes to the &os;&nbsp;Ports
 581       Collection, package infrastructure, and package maintenance and
 582       installation tools.</para>
 583
 584     <sect2 xml:id="ports-infrastructure">
 585       <title>Infrastructure Changes</title>
 586
 587       <para>&nbsp;</para>
 588     </sect2>
 589
 590     <sect2 xml:id="ports-packages ">
 591       <title>Packaging Changes</title>
 592
 593       <para>&nbsp;</para>
 594     </sect2>
 595   </sect1>
 596
 597   <sect1 xml:id="doc">
 598     <title>Documentation</title>
 599
 600     <para>This section covers changes to the &os;&nbsp;Documentation
 601       Project sources and toolchain.</para>
 602
 603     <sect2 xml:id="doc-sources">
 604       <title>Documentation Source Changes</title>
 605
 606       <para>&nbsp;</para>
 607     </sect2>
 608
 609     <sect2 xml:id="doc-toolchain">
 610       <title>Documentation Toolchain Changes</title>
 611
 612       <para>&nbsp;</para>
 613     </sect2>
 614   </sect1>
 615
 616   <sect1 xml:id="releng">
 617     <title>Release Engineering and Integration</title>
 618
 619     <para>This section convers changes that are specific to the
 620       &os;&nbsp;Release Engineering processes.</para>
 621
 622     <sect2 xml:id="releng-changes">
 623       <title>Integration Changes</title>
 624
 625       <para>&nbsp;</para>
 626     </sect2>
 627   </sect1>
 628 </article>