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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="316348">The &man.pw.8; utility has been updated
 195         to properly respect &man.pw.conf.5;, if present.</para>
 196
 197       <para revision="319390">The &man.cxgbetool.8; utility has been
 198         added, providing command-line access to features and debugging
 199         facilities of &man.cxgbe.4; devices.</para>
 200
 201       <para revision="320646">The &man.rcp.1;, &man.rlogin.1;,
 202         &man.rsh.1;, &man.rlogind.8;, and &man.rshd.8; utilities have
 203         been marked as deprecated, and planned for removal in
 204         &os;&nbsp;12.0-RELEASE.</para>
 205
 206       <para revision="320772">The &man.syslogd.8; utility has been
 207         updated to restart logging a subprocess that had restarted
 208         unexpectedly.</para>
 209
 210       <para revision="320824">The &man.gdb.1; and &man.kgdb.1;
 211         utilities have been marked as deprecated, and planned for
 212         removal from the base system in the future.  A newer version
 213         is available in the <filename
 214           role="package">devel/gdb</filename> port.</para>
 215
 216       <para revision="321242">The &man.cron.8; utility has been
 217         updated to add support for including files within <filename
 218           class="directory">/etc/cron.d</filename> and <filename
 219           class="directory">/usr/local/etc/cron.d</filename> by
 220         default.</para>
 221
 222       <para revision="321234">The &man.syslogd.8; utility has been
 223         updated to add the <literal>include</literal> keyword which
 224         allows specifying a directory containing configuration files
 225         to be included in addition to &man.syslog.conf.5;.  The
 226         default &man.syslog.conf.5; has been updated to include
 227         <filename class="directory">/etc/syslog.d</filename> and
 228         <filename class="directory">/usr/local/etc/syslog.d</filename>
 229         by default.</para>
 230
 231       <para revision="321263">The &man.newsyslog.8; utility has been
 232         updated to support logging to &man.syslogd.8; in a format
 233         compliant with RFC5424.  For more details, see the description
 234         for the <literal>T</literal> flag in
 235         &man.newsyslog.conf.5;.</para>
 236     </sect2>
 237
 238     <sect2 xml:id="userland-contrib">
 239       <title>Contributed Software</title>
 240
 241       <para revision="309512"><application>Subversion</application>
 242         has been updated to version 1.9.5.</para>
 243
 244       <para revision="309848">&man.file.1; has been updated to version
 245         5.29.</para>
 246
 247       <para revision="310490">The &man.amd.8; utility has been updated
 248         to version 6.2.</para>
 249
 250       <para revision="312516">&man.xz.1; has been updated to version
 251         5.2.3.</para>
 252
 253       <para revision="313796">&man.zlib.3; has been updated to version
 254         1.2.11.</para>
 255
 256       <para revision="316069">&man.ntpd.8; has been updated to version
 257         4.2.8p10.</para>
 258
 259       <para revision="316350">Timezone data files have been updated to
 260         version 2017b.</para>
 261
 262       <para revision="316958">&man.tcsh.1; has been updated to version
 263         6.20.00.</para>
 264
 265       <para revision="321304">&man.libarchive.3; has been updated to
 266         version 3.3.2.</para>
 267
 268       <para revision="321964"><application>bmake</application> has
 269         been updated to version 20170720.</para>
 270
 271       <para revision="322244"><filename>pci_vendors</filename> has
 272         been updated to version 2017.07.27.</para>
 273     </sect2>
 274
 275     <sect2 xml:id="userland-installer">
 276       <title>Installation and Configuration Tools</title>
 277
 278       <para revision="321202" contrib="sponsor" sponsor="&ff;">The
 279         default <acronym>EFI</acronym> partition created by
 280         &man.bsdinstall.8; has been increased from 800KB to
 281         200MB.</para>
 282     </sect2>
 283
 284     <sect2 xml:id="userland-rc">
 285       <title><filename class="directory">/etc/rc.d</filename>
 286         Scripts</title>
 287
 288       <para>&nbsp;</para>
 289     </sect2>
 290
 291     <sect2 xml:id="userland-periodic">
 292       <title><filename class="directory">/etc/periodic</filename>
 293         Scripts</title>
 294
 295       <para>&nbsp;</para>
 296     </sect2>
 297
 298     <sect2 xml:id="userland-libraries">
 299       <title>Runtime Libraries and API</title>
 300
 301       <para revision="316040">The &man.kvm.close.3; function has been
 302         updated to return the accumulated error from previous
 303         &man.close.2; calls.</para>
 304
 305       <para revision="320312">The &man.syslog.3; function has been
 306         updated to be more resilent to thread cancellation occurring
 307         in supported deferred mode, eliminating possible lockups in
 308         multi-threaded applications that often create and cancel
 309         threads using the function, such as <filename
 310           role="package">net/mpd5</filename>.</para>
 311
 312       <para revision="321074">The &man.stdio.3; function has been
 313         updated to be deferred cancel-safe, eliminating possible
 314         lockups in multi-threaded applications using functions such
 315         as &man.funopen.3;, &man.fropen.3;, and &man.fwopen.3;.</para>
 316     </sect2>
 317
 318     <sect2 xml:id="userland-abi">
 319       <title>ABI Compatibility</title>
 320
 321       <para revision="309258">The type <literal>max_align_t</literal>
 322         is now defined for C11 compliance.</para>
 323     </sect2>
 324
 325     <sect2 xml:id="userland-debug">
 326       <title>Userland Debugging</title>
 327
 328       <para revision="304017">&man.ptrace.2; now supports events for
 329         thread creation and destruction, permitting more reliable
 330         debugging of threaded processes.</para>
 331
 332       <para revision="304499">&man.ptrace.2; now supports events for
 333         &man.vfork.2;, permitting reliable debugging across
 334         &man.vfork.2; invocations.</para>
 335
 336       <para revision="306786">Process core dumps now include the
 337         process ID (<acronym>PID</acronym>) and command line
 338         arguments.</para>
 339     </sect2>
 340   </sect1>
 341
 342   <sect1 xml:id="kernel">
 343     <title>Kernel</title>
 344
 345     <para>This section covers changes to kernel configurations, system
 346       tuning, and system control parameters that are not otherwise
 347       categorized.</para>
 348
 349     <sect2 xml:id="kernel-misc">
 350       <title>Miscellaneous Kernel Changes</title>
 351
 352       <para revision="321198">The &man.vt.4; driver has been updated,
 353         increasing the maximum framebuffer size.</para>
 354     </sect2>
 355
 356     <sect2 xml:id="kernel-bugfix">
 357       <title>Kernel Bug Fixes</title>
 358
 359       <para revision="317434">The &man.ipf.4; packet filter has been
 360         updated to prevent <literal>keep state</literal> from
 361         incorrectly implying <literal>keep frags</literal>, matching
 362         the behavior documented in &man.ipf.5;.</para>
 363
 364       <para revision="322793">The &man.geom.4;
 365         <literal>JOURNAL</literal> class has been updated to fix
 366         <literal>flush_queue</literal> handling.</para>
 367     </sect2>
 368
 369     <sect2 xml:id="kernel-config">
 370       <title>Kernel Configuration</title>
 371
 372       <para>&nbsp;</para>
 373     </sect2>
 374
 375     <sect2 xml:id="kernel-sysctl">
 376       <title>System Tuning and Controls</title>
 377
 378       <para revision="321024">The
 379         <literal>kern.features.linux</literal> and
 380         <literal>kern.features.linux64</literal> flags have been
 381         added to the <literal>kern.features</literal> &man.sysctl.8;,
 382         which when set to <literal>1</literal>, indicate the kernel
 383         is configured with compatibility for 32-bit and/or 64-bit
 384         linux binaries, respectively.</para>
 385     </sect2>
 386   </sect1>
 387
 388   <sect1 xml:id="drivers">
 389     <title>Devices and Drivers</title>
 390
 391     <para>This section covers changes and additions to devices and
 392       device drivers since &release.prev;.</para>
 393
 394     <sect2 xml:id="drivers-device">
 395       <title>Device Drivers</title>
 396
 397       <para revision="306533" contrib="sponsor"
 398         sponsor="&chelsio;">&man.devctl.8; now supports a &quot;clear
 399         driver&quot; command as a complement to &quot;set
 400         driver&quot;.</para>
 401     </sect2>
 402
 403     <sect2 xml:id="drivers-storage">
 404       <title>Storage Drivers</title>
 405
 406       <para revision="319436">The &man.mpr.4; driver has been updated
 407         to support tri-mode
 408         (<acronym>SAS</acronym>/<acronym>SATA</acronym>/<acronym>PCIe</acronym>)
 409         Broadcom&reg; storage adapters.</para>
 410
 411       <para revision="321067">The &man.arcmsr.4; driver has been
 412         updated to version 1.40.00.00, adding support for ARC-1884
 413         <acronym>SATA</acronym> controllers.</para>
 414     </sect2>
 415
 416     <sect2 xml:id="drivers-network">
 417       <title>Network Drivers</title>
 418
 419       <para revision="309447" contrib="sponsor"
 420         sponsor="&chelsio;">The &man.cxgbev.4; driver has been added,
 421         providing support for Virtual Function devices
 422         (<acronym>VFs</acronym>) on Chelsio T4 and T5 adapters.</para>
 423
 424       <para revision="309560" contrib="sponsor"
 425         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 426         to provide support for Virtual Function devices
 427         (<acronym>VFs</acronym>) on Chelsio T6 adapters.</para>
 428
 429       <para revision="309560" contrib="sponsor"
 430         sponsor="&chelsio;">The &man.cxgbe.4; driver now supports
 431         devices using T6-based adapters which support 10, 25, 40, and
 432         100 Gbps.</para>
 433
 434       <para revision="312359">The &man.alc.4; driver has been updated
 435         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 436         Gigabit ethernet cards.</para>
 437
 438       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 439         &man.alc.4; driver has been updated to provide support for
 440         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 441         cards.</para>
 442
 443       <para revision="316485">The &man.qlnxe.4; driver has been added,
 444         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 445         adapters.</para>
 446
 447       <para revision="319270" contrib="sponsor"
 448         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 449         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 450     </sect2>
 451   </sect1>
 452
 453   <sect1 xml:id="hardware">
 454     <title>Hardware Support</title>
 455
 456     <para>This section covers general hardware support for physical
 457       machines, hypervisors, and virtualization environments, as well
 458       as hardware changes and updates that do not otherwise fit in
 459       other sections of this document.</para>
 460
 461     <sect2 xml:id="hardware-support">
 462       <title>Hardware Support</title>
 463
 464       <para>&nbsp;</para>
 465     </sect2>
 466
 467     <sect2 xml:id="hardware-virtualization">
 468       <title>Virtualization Support</title>
 469
 470       <para revision="306520" contrib="sponsor"
 471         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 472         &man.bhyve.4; resets functions via <acronym>FLR</acronym> when
 473         a virtual machine is started and stopped.</para>
 474
 475       <para revision="306472" contrib="sponsor"
 476         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 477         &man.bhyve.4; supports more dynamic configurations permitting
 478         devices to be marked for passthrough or host use at
 479         runtime.</para>
 480     </sect2>
 481
 482     <sect2 xml:id="hardware-arm">
 483       <title>ARM Support</title>
 484
 485       <para>&nbsp;</para>
 486     </sect2>
 487   </sect1>
 488
 489   <sect1 xml:id="storage">
 490     <title>Storage</title>
 491
 492     <para>This section covers changes and additions to file systems
 493       and other storage subsystems, both local and networked.</para>
 494
 495     <sect2 xml:id="storage-general">
 496       <title>General Storage</title>
 497
 498       <para>&nbsp;</para>
 499     </sect2>
 500
 501     <sect2 xml:id="storage-net">
 502       <title>Networked Storage</title>
 503
 504       <para revision="318675">The <acronym>NFS</acronym> client now
 505         properly handles <literal>NFS4ERR_BAD_SESSION</literal> errors
 506         received from an <acronym>NFS</acronym> server.  Additionally,
 507         the kernel <acronym>RPC</acronym> client has been updated to
 508         prevent creating new <acronym>TCP</acronym> connections when
 509         <literal>ERESTART</literal> is received from
 510         &man.sosend.9;.</para>
 511
 512       <para revision="321031">The <acronym>NFS</acronym> client has
 513         been updated to support <acronym>pNFS</acronym>
 514         <literal>commit</literal> through the
 515         <literal>DS</literal>.</para>
 516     </sect2>
 517
 518     <sect2 xml:id="storage-zfs">
 519       <title>ZFS</title>
 520
 521       <para></para>
 522     </sect2>
 523
 524     <sect2 xml:id="storage-geom">
 525       <title>&man.geom.4;</title>
 526
 527       <para>&nbsp;</para>
 528     </sect2>
 529   </sect1>
 530
 531   <sect1 xml:id="boot">
 532     <title>Boot Loader Changes</title>
 533
 534     <para>This section covers the boot loader, boot menu, and other
 535       boot-related changes.</para>
 536
 537     <sect2 xml:id="boot-loader">
 538       <title>Boot Loader Changes</title>
 539
 540       <para>&nbsp;</para>
 541     </sect2>
 542
 543     <sect2 xml:id="boot-menu">
 544       <title>Boot Menu Changes</title>
 545
 546       <para>&nbsp;</para>
 547     </sect2>
 548   </sect1>
 549
 550   <sect1 xml:id="network">
 551     <title>Networking</title>
 552
 553     <para>This section describes changes that affect networking in
 554       &os;.</para>
 555
 556     <sect2 xml:id="network-general">
 557       <title>General Networking Changes</title>
 558
 559       <para revision="313558" contrib="sponsor"
 560         sponsor="&dellemc;">The network stack has been modified to fix
 561         incorrect or invalid <acronym>IP</acronym> addresses if
 562         multiple threads emit a <acronym>UDP</acronym>
 563         <literal>log_in_vain</literal> message concurrently.</para>
 564
 565       <para revision="317375" contrib="sponsor"
 566         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 567         been changed to use the estimated <acronym>RTT</acronym>
 568         instead of timestamps for receive buffer auto resizing.</para>
 569     </sect2>
 570
 571     <sect2 xml:id="network-protocols">
 572       <title>Network Protocols</title>
 573
 574       <para revision="309340" contrib="sponsor"
 575         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 576         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 577         A new &man.sysctl.8;,
 578         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 579         been added, which sets the maximum number of retransmissions
 580         when set to a non-zero value.</para>
 581     </sect2>
 582   </sect1>
 583
 584   <sect1 xml:id="ports">
 585     <title>Ports Collection and Package Infrastructure</title>
 586
 587     <para>This section covers changes to the &os;&nbsp;Ports
 588       Collection, package infrastructure, and package maintenance and
 589       installation tools.</para>
 590
 591     <sect2 xml:id="ports-infrastructure">
 592       <title>Infrastructure Changes</title>
 593
 594       <para>&nbsp;</para>
 595     </sect2>
 596
 597     <sect2 xml:id="ports-packages ">
 598       <title>Packaging Changes</title>
 599
 600       <para>&nbsp;</para>
 601     </sect2>
 602   </sect1>
 603
 604   <sect1 xml:id="doc">
 605     <title>Documentation</title>
 606
 607     <para>This section covers changes to the &os;&nbsp;Documentation
 608       Project sources and toolchain.</para>
 609
 610     <sect2 xml:id="doc-sources">
 611       <title>Documentation Source Changes</title>
 612
 613       <para>&nbsp;</para>
 614     </sect2>
 615
 616     <sect2 xml:id="doc-toolchain">
 617       <title>Documentation Toolchain Changes</title>
 618
 619       <para>&nbsp;</para>
 620     </sect2>
 621   </sect1>
 622
 623   <sect1 xml:id="releng">
 624     <title>Release Engineering and Integration</title>
 625
 626     <para>This section convers changes that are specific to the
 627       &os;&nbsp;Release Engineering processes.</para>
 628
 629     <sect2 xml:id="releng-changes">
 630       <title>Integration Changes</title>
 631
 632       <para>&nbsp;</para>
 633     </sect2>
 634   </sect1>
 635 </article>