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