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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="321242">The &man.cron.8; utility has been
 199         updated to add support for including files within <filename
 200           class="directory">/etc/cron.d</filename> and <filename
 201           class="directory">/usr/local/etc/cron.d</filename> by
 202         default.</para>
 203
 204       <para revision="321234">The &man.syslogd.8; utility has been
 205         updated to add the <literal>include</literal> keyword which
 206         allows specifying a directory containing configuration files
 207         to be included in addition to &man.syslog.conf.5;.  The
 208         default &man.syslog.conf.5; has been updated to include
 209         <filename class="directory">/etc/syslog.d</filename> and
 210         <filename class="directory">/usr/local/etc/syslog.d</filename>
 211         by default.</para>
 212
 213       <para revision="321263">The &man.newsyslog.8; utility has been
 214         updated to support logging to &man.syslogd.8; in a format
 215         compliant with RFC5424.  For more details, see the description
 216         for the <literal>T</literal> flag in
 217         &man.newsyslog.conf.5;.</para>
 218
 219       <para revision="321216">The &man.savecore.8; utility has been
 220         updated to use <acronym>KiB</acronym> when outputting
 221         information regarding total space, free space, etc.</para>
 222     </sect2>
 223
 224     <sect2 xml:id="userland-contrib">
 225       <title>Contributed Software</title>
 226
 227       <para revision="309512"><application>Subversion</application>
 228         has been updated to version 1.9.5.</para>
 229
 230       <para revision="309848">&man.file.1; has been updated to version
 231         5.29.</para>
 232
 233       <para revision="310490">The &man.amd.8; utility has been updated
 234         to version 6.2.</para>
 235
 236       <para revision="312516">&man.xz.1; has been updated to version
 237         5.2.3.</para>
 238
 239       <para revision="313796">&man.zlib.3; has been updated to version
 240         1.2.11.</para>
 241
 242       <para revision="316069">&man.ntpd.8; has been updated to version
 243         4.2.8p10.</para>
 244
 245       <para revision="316350">Timezone data files have been updated to
 246         version 2017b.</para>
 247
 248       <para revision="316958">&man.tcsh.1; has been updated to version
 249         6.20.00.</para>
 250
 251       <para revision="321304">&man.libarchive.3; has been updated to
 252         version 3.3.2.</para>
 253     </sect2>
 254
 255     <sect2 xml:id="userland-installer">
 256       <title>Installation and Configuration Tools</title>
 257
 258       <para revision="321202" contrib="sponsor" sponsor="&ff;">The
 259         default <acronym>EFI</acronym> partition created by
 260         &man.bsdinstall.8; has been increased from 800KB to
 261         200MB.</para>
 262     </sect2>
 263
 264     <sect2 xml:id="userland-rc">
 265       <title><filename class="directory">/etc/rc.d</filename>
 266         Scripts</title>
 267
 268       <para>&nbsp;</para>
 269     </sect2>
 270
 271     <sect2 xml:id="userland-periodic">
 272       <title><filename class="directory">/etc/periodic</filename>
 273         Scripts</title>
 274
 275       <para>&nbsp;</para>
 276     </sect2>
 277
 278     <sect2 xml:id="userland-libraries">
 279       <title>Runtime Libraries and API</title>
 280
 281       <para revision="316040">The &man.kvm.close.3; function has been
 282         updated to return the accumulated error from previous
 283         &man.close.2; calls.</para>
 284     </sect2>
 285
 286     <sect2 xml:id="userland-abi">
 287       <title>ABI Compatibility</title>
 288
 289       <para revision="309258">The type <literal>max_align_t</literal>
 290         is now defined for C11 compliance.</para>
 291     </sect2>
 292
 293     <sect2 xml:id="userland-debug">
 294       <title>Userland Debugging</title>
 295
 296       <para revision="304017">&man.ptrace.2; now supports events for
 297         thread creation and destruction, permitting more reliable
 298         debugging of threaded processes.</para>
 299
 300       <para revision="304499">&man.ptrace.2; now supports events for
 301         &man.vfork.2;, permitting reliable debugging across
 302         &man.vfork.2; invocations.</para>
 303
 304       <para revision="306786">Process core dumps now include the
 305         process ID (<acronym>PID</acronym>) and command line
 306         arguments.</para>
 307     </sect2>
 308   </sect1>
 309
 310   <sect1 xml:id="kernel">
 311     <title>Kernel</title>
 312
 313     <para>This section covers changes to kernel configurations, system
 314       tuning, and system control parameters that are not otherwise
 315       categorized.</para>
 316
 317     <sect2 xml:id="kernel-misc">
 318       <title>Miscellaneous Kernel Changes</title>
 319
 320       <para revision="321198">The &man.vt.4; driver has been updated,
 321         increasing the maximum framebuffer size.</para>
 322     </sect2>
 323
 324     <sect2 xml:id="kernel-bugfix">
 325       <title>Kernel Bug Fixes</title>
 326
 327       <para revision="317434">The &man.ipf.4; packet filter has been
 328         updated to prevent <literal>keep state</literal> from
 329         incorrectly implying <literal>keep frags</literal>, matching
 330         the behavior documented in &man.ipf.5;.</para>
 331     </sect2>
 332
 333     <sect2 xml:id="kernel-config">
 334       <title>Kernel Configuration</title>
 335
 336       <para>&nbsp;</para>
 337     </sect2>
 338
 339     <sect2 xml:id="kernel-sysctl">
 340       <title>System Tuning and Controls</title>
 341
 342       <para></para>
 343     </sect2>
 344   </sect1>
 345
 346   <sect1 xml:id="drivers">
 347     <title>Devices and Drivers</title>
 348
 349     <para>This section covers changes and additions to devices and
 350       device drivers since &release.prev;.</para>
 351
 352     <sect2 xml:id="drivers-device">
 353       <title>Device Drivers</title>
 354
 355       <para revision="306533" contrib="sponsor"
 356         sponsor="&chelsio;">&man.devctl.8; now supports a &quot;clear
 357         driver&quot; command as a complement to &quot;set
 358         driver&quot;.</para>
 359     </sect2>
 360
 361     <sect2 xml:id="drivers-storage">
 362       <title>Storage Drivers</title>
 363
 364       <para revision="319436">The &man.mpr.4; driver has been updated
 365         to support tri-mode
 366         (<acronym>SAS</acronym>/<acronym>SATA</acronym>/<acronym>PCIe</acronym>)
 367         Broadcom&reg; storage adapters.</para>
 368     </sect2>
 369
 370     <sect2 xml:id="drivers-network">
 371       <title>Network Drivers</title>
 372
 373       <para revision="309447" contrib="sponsor"
 374         sponsor="&chelsio;">The &man.cxgbev.4; driver has been added,
 375         providing support for Virtual Function devices
 376         (<acronym>VFs</acronym>) on Chelsio T4 and T5 adapters.</para>
 377
 378       <para revision="309560" contrib="sponsor"
 379         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 380         to provide support for Virtual Function devices
 381         (<acronym>VFs</acronym>) on Chelsio T6 adapters.</para>
 382
 383       <para revision="309560" contrib="sponsor"
 384         sponsor="&chelsio;">The &man.cxgbe.4; driver now supports
 385         devices using T6-based adapters which support 10, 25, 40, and
 386         100 Gbps.</para>
 387
 388       <para revision="312359">The &man.alc.4; driver has been updated
 389         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 390         Gigabit ethernet cards.</para>
 391
 392       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 393         &man.alc.4; driver has been updated to provide support for
 394         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 395         cards.</para>
 396
 397       <para revision="316485">The &man.qlnxe.4; driver has been added,
 398         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 399         adapters.</para>
 400
 401       <para revision="319270" contrib="sponsor"
 402         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 403         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 404     </sect2>
 405   </sect1>
 406
 407   <sect1 xml:id="hardware">
 408     <title>Hardware Support</title>
 409
 410     <para>This section covers general hardware support for physical
 411       machines, hypervisors, and virtualization environments, as well
 412       as hardware changes and updates that do not otherwise fit in
 413       other sections of this document.</para>
 414
 415     <sect2 xml:id="hardware-support">
 416       <title>Hardware Support</title>
 417
 418       <para>&nbsp;</para>
 419     </sect2>
 420
 421     <sect2 xml:id="hardware-virtualization">
 422       <title>Virtualization Support</title>
 423
 424       <para revision="306520" contrib="sponsor"
 425         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 426         &man.bhyve.4; resets functions via <acronym>FLR</acronym> when
 427         a virtual machine is started and stopped.</para>
 428
 429       <para revision="306472" contrib="sponsor"
 430         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 431         &man.bhyve.4; supports more dynamic configurations permitting
 432         devices to be marked for passthrough or host use at
 433         runtime.</para>
 434     </sect2>
 435
 436     <sect2 xml:id="hardware-arm">
 437       <title>ARM Support</title>
 438
 439       <para>&nbsp;</para>
 440     </sect2>
 441   </sect1>
 442
 443   <sect1 xml:id="storage">
 444     <title>Storage</title>
 445
 446     <para>This section covers changes and additions to file systems
 447       and other storage subsystems, both local and networked.</para>
 448
 449     <sect2 xml:id="storage-general">
 450       <title>General Storage</title>
 451
 452       <para>&nbsp;</para>
 453     </sect2>
 454
 455     <sect2 xml:id="storage-net">
 456       <title>Networked Storage</title>
 457
 458       <para revision="318675">The <acronym>NFS</acronym> client now
 459         properly handles <literal>NFS4ERR_BAD_SESSION</literal> errors
 460         received from an <acronym>NFS</acronym> server.  Additionally,
 461         the kernel <acronym>RPC</acronym> client has been updated to
 462         prevent creating new <acronym>TCP</acronym> connections when
 463         <literal>ERESTART</literal> is received from
 464         &man.sosend.9;.</para>
 465
 466       <para revision="321031">The <acronym>NFS</acronym> client has
 467         been updated to support <acronym>pNFS</acronym>
 468         <literal>commit</literal> through the
 469         <literal>DS</literal>.</para>
 470     </sect2>
 471
 472     <sect2 xml:id="storage-zfs">
 473       <title>ZFS</title>
 474
 475       <para></para>
 476     </sect2>
 477
 478     <sect2 xml:id="storage-geom">
 479       <title>&man.geom.4;</title>
 480
 481       <para>&nbsp;</para>
 482     </sect2>
 483   </sect1>
 484
 485   <sect1 xml:id="boot">
 486     <title>Boot Loader Changes</title>
 487
 488     <para>This section covers the boot loader, boot menu, and other
 489       boot-related changes.</para>
 490
 491     <sect2 xml:id="boot-loader">
 492       <title>Boot Loader Changes</title>
 493
 494       <para>&nbsp;</para>
 495     </sect2>
 496
 497     <sect2 xml:id="boot-menu">
 498       <title>Boot Menu Changes</title>
 499
 500       <para>&nbsp;</para>
 501     </sect2>
 502   </sect1>
 503
 504   <sect1 xml:id="network">
 505     <title>Networking</title>
 506
 507     <para>This section describes changes that affect networking in
 508       &os;.</para>
 509
 510     <sect2 xml:id="network-general">
 511       <title>General Networking Changes</title>
 512
 513       <para revision="313558" contrib="sponsor"
 514         sponsor="&dellemc;">The network stack has been modified to fix
 515         incorrect or invalid <acronym>IP</acronym> addresses if
 516         multiple threads emit a <acronym>UDP</acronym>
 517         <literal>log_in_vain</literal> message concurrently.</para>
 518
 519       <para revision="317375" contrib="sponsor"
 520         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 521         been changed to use the estimated <acronym>RTT</acronym>
 522         instead of timestamps for receive buffer auto resizing.</para>
 523     </sect2>
 524
 525     <sect2 xml:id="network-protocols">
 526       <title>Network Protocols</title>
 527
 528       <para revision="309340" contrib="sponsor"
 529         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 530         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 531         A new &man.sysctl.8;,
 532         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 533         been added, which sets the maximum number of retransmissions
 534         when set to a non-zero value.</para>
 535     </sect2>
 536   </sect1>
 537
 538   <sect1 xml:id="ports">
 539     <title>Ports Collection and Package Infrastructure</title>
 540
 541     <para>This section covers changes to the &os;&nbsp;Ports
 542       Collection, package infrastructure, and package maintenance and
 543       installation tools.</para>
 544
 545     <sect2 xml:id="ports-infrastructure">
 546       <title>Infrastructure Changes</title>
 547
 548       <para>&nbsp;</para>
 549     </sect2>
 550
 551     <sect2 xml:id="ports-packages ">
 552       <title>Packaging Changes</title>
 553
 554       <para>&nbsp;</para>
 555     </sect2>
 556   </sect1>
 557
 558   <sect1 xml:id="doc">
 559     <title>Documentation</title>
 560
 561     <para>This section covers changes to the &os;&nbsp;Documentation
 562       Project sources and toolchain.</para>
 563
 564     <sect2 xml:id="doc-sources">
 565       <title>Documentation Source Changes</title>
 566
 567       <para>&nbsp;</para>
 568     </sect2>
 569
 570     <sect2 xml:id="doc-toolchain">
 571       <title>Documentation Toolchain Changes</title>
 572
 573       <para>&nbsp;</para>
 574     </sect2>
 575   </sect1>
 576
 577   <sect1 xml:id="releng">
 578     <title>Release Engineering and Integration</title>
 579
 580     <para>This section convers changes that are specific to the
 581       &os;&nbsp;Release Engineering processes.</para>
 582
 583     <sect2 xml:id="releng-changes">
 584       <title>Integration Changes</title>
 585
 586       <para>&nbsp;</para>
 587     </sect2>
 588   </sect1>
 589 </article>