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  20
  21   <info>
  22     <title>&os; &release.current; Release Notes</title>
  23
  24     <author>
  25       <orgname>The &os; Project</orgname>
  26     </author>
  27
  28     <pubdate>$FreeBSD$</pubdate>
  29
  30     <copyright>
  31       <year>2017</year>
  32       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  33         Project</holder>
  34     </copyright>
  35
  36     <legalnotice xml:id="trademarks" role="trademarks">
  37       &tm-attrib.freebsd;
  38       &tm-attrib.ibm;
  39       &tm-attrib.ieee;
  40       &tm-attrib.intel;
  41       &tm-attrib.sparc;
  42       &tm-attrib.general;
  43     </legalnotice>
  44
  45     <abstract>
  46       <para>The release notes for &os; &release.current; contain
  47         a summary of the changes made to the &os; base system on the
  48         &release.branch; development line.  This document lists
  49         applicable security advisories that were issued since the last
  50         release, as well as significant changes to the &os; kernel and
  51         userland.  Some brief remarks on upgrading are also
  52         presented.</para>
  53     </abstract>
  54   </info>
  55
  56   <sect1 xml:id="intro">
  57     <title>Introduction</title>
  58
  59     <para>This document contains the release notes for &os;
  60       &release.current;.  It describes recently added, changed, or
  61       deleted features of &os;.  It also provides some notes on
  62       upgrading from previous versions of &os;.</para>
  63
  64     <para releasetype="current">The &release.type; distribution to
  65       which these release notes apply represents the latest point
  66       along the &release.branch; development branch since
  67       &release.branch; was created.  Information regarding pre-built,
  68       binary &release.type; distributions along this branch can be
  69       found at <uri
  70         xlink:href="&release.url;">&release.url;</uri>.</para>
  71
  72     <para releasetype="snapshot">The &release.type; distribution to
  73       which these release notes apply represents a point along the
  74       &release.branch; development branch between &release.prev; and
  75       the future &release.next;.  Information regarding pre-built,
  76       binary &release.type; distributions along this branch can be
  77       found at <uri
  78         xlink:href="&release.url;">&release.url;</uri>.</para>
  79
  80     <para releasetype="release">This distribution of &os;
  81       &release.current; is a &release.type; distribution.  It can be
  82       found at <uri xlink:href="&release.url;">&release.url;</uri> or
  83       any of its mirrors.  More information on obtaining this (or
  84       other) &release.type; distributions of &os; can be found in the
  85       <link
  86         xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
  87           &os;</quote> appendix</link> to the <link
  88         xlink:href="&url.books.handbook;/">&os;
  89         Handbook</link>.</para>
  90
  91     <para>All users are encouraged to consult the release errata
  92       before installing &os;.  The errata document is updated with
  93       <quote>late-breaking</quote> information discovered late in the
  94       release cycle or after the release.  Typically, it contains
  95       information on known bugs, security advisories, and corrections
  96       to documentation.  An up-to-date copy of the errata for &os;
  97       &release.current; can be found on the &os; Web site.</para>
  98
  99     <para>This document describes the most user-visible new or changed
 100       features in &os; since &release.prev;.</para>
 101
 102     <para>Typical release note items document recent security
 103       advisories issued after &release.prev;, new drivers or hardware
 104       support, new commands or options, major bug fixes, or
 105       contributed software upgrades.  They may also list changes to
 106       major ports/packages or release engineering practices.  Clearly
 107       the release notes cannot list every single change made to &os;
 108       between releases; this document focuses primarily on security
 109       advisories, user-visible changes, and major architectural
 110       improvements.</para>
 111   </sect1>
 112
 113   <sect1 xml:id="upgrade">
 114     <title>Upgrading from Previous Releases of &os;</title>
 115
 116     <para arch="amd64,i386">Binary upgrades between RELEASE versions
 117       (and snapshots of the various security branches) are supported
 118       using the &man.freebsd-update.8; utility.  The binary upgrade
 119       procedure will update unmodified userland utilities, as well as
 120       unmodified <filename>GENERIC</filename> kernel distributed as
 121       a part of an official &os; release.  The &man.freebsd-update.8;
 122       utility requires that the host being upgraded have Internet
 123       connectivity.</para>
 124
 125     <para>Source-based upgrades (those based on recompiling the &os;
 126       base system from source code) from previous versions are
 127       supported, according to the instructions in
 128       <filename>/usr/src/UPDATING</filename>.</para>
 129
 130     <important>
 131       <para>Upgrading &os; should only be attempted after
 132         backing up <emphasis>all</emphasis> data and configuration
 133         files.</para>
 134     </important>
 135   </sect1>
 136
 137   <sect1 xml:id="security-errata">
 138     <title>Security and Errata</title>
 139
 140     <para>This section lists the various Security Advisories and
 141       Errata Notices since &release.prev;.</para>
 142
 143     <sect2 xml:id="security">
 144       <title>Security Advisories</title>
 145
 146       &security;
 147     </sect2>
 148
 149     <sect2 xml:id="errata">
 150       <title>Errata Notices</title>
 151
 152       &errata;
 153     </sect2>
 154   </sect1>
 155
 156   <sect1 xml:id="userland">
 157     <title>Userland</title>
 158
 159     <para>This section covers changes and additions to userland
 160       applications, contributed software, and system utilities.</para>
 161
 162     <sect2 xml:id="userland-config">
 163       <title>Userland Configuration Changes</title>
 164
 165       <para revision="313206">The &man.inetd.8; utility is now built
 166         without <literal>libwrap</literal> support when
 167         <literal>WITHOUT_TCP_WRAPPERS</literal> is set in
 168         &man.src.conf.5;.</para>
 169
 170       <para revision="316046">The &man.libthr.3; library and related
 171         files are now evaluated and removed by the
 172         <literal>delete-old-libs</literal> target when upgrading the
 173         system if <literal>WITHOUT_LIBTHR</literal> is
 174         set in &man.src.conf.5;.</para>
 175
 176       <para revision="319243">The
 177         <literal>WITH_RPCBIND_WARMSTART_SUPPORT</literal>
 178         &man.src.conf.5; knob has been added, which when enabled
 179         allows building &man.rpcbind.8; with
 180         <literal>warmstart</literal> support.</para>
 181     </sect2>
 182
 183     <sect2 xml:id="userland-programs">
 184       <title>Userland Application Changes</title>
 185
 186       <para revision="298427">The &man.truss.1; utility has been
 187         updated to include the <literal>-H</literal> flag, which logs
 188         the thread ID of a thread invoking a system call.</para>
 189
 190       <para revision="308915">The &man.zfsbootcfg.8; utility has been
 191         added, providing one-time &man.boot.config.5;-style options
 192         for &man.zfsboot.8;.</para>
 193
 194       <para revision="319390">The &man.cxgbetool.8; utility has been
 195         added, providing command-line access to features and debugging
 196         facilities of &man.cxgbe.4; devices.</para>
 197
 198       <para revision="320646">The &man.rcp.1;, &man.rlogin.1;,
 199         &man.rsh.1;, &man.ruptime.1;, &man.rwho.1;, &man.rlogind.8;,
 200         &man.rshd.8;, and &man.rwhod.8; utilities have been marked as
 201         deprecated, and planned for removal in
 202         &os;&nbsp;12.0-RELEASE.</para>
 203
 204       <para revision="320824">The &man.gdb.1; and &man.kgdb.1;
 205         utilities have been marked as deprecated, and planned for
 206         removal from the base system in the future.  A newer version
 207         is available in the <filename
 208           role="package">devel/gdb</filename> port.</para>
 209
 210       <para revision="321242">The &man.cron.8; utility has been
 211         updated to add support for including files within <filename
 212           class="directory">/etc/cron.d</filename> and <filename
 213           class="directory">/usr/local/etc/cron.d</filename> by
 214         default.</para>
 215
 216       <para revision="321234">The &man.syslogd.8; utility has been
 217         updated to add the <literal>include</literal> keyword which
 218         allows specifying a directory containing configuration files
 219         to be included in addition to &man.syslog.conf.5;.  The
 220         default &man.syslog.conf.5; has been updated to include
 221         <filename class="directory">/etc/syslog.d</filename> and
 222         <filename class="directory">/usr/local/etc/syslog.d</filename>
 223         by default.</para>
 224
 225       <para revision="321263">The &man.newsyslog.8; utility has been
 226         updated to support logging to &man.syslogd.8; in a format
 227         compliant with RFC5424.  For more details, see the description
 228         for the <literal>T</literal> flag in
 229         &man.newsyslog.conf.5;.</para>
 230
 231       <para revision="321216">The &man.savecore.8; utility has been
 232         updated to use <acronym>KiB</acronym> when outputting
 233         information regarding total space, free space, etc.</para>
 234     </sect2>
 235
 236     <sect2 xml:id="userland-contrib">
 237       <title>Contributed Software</title>
 238
 239       <para revision="309512"><application>Subversion</application>
 240         has been updated to version 1.9.5.</para>
 241
 242       <para revision="309848">&man.file.1; has been updated to version
 243         5.29.</para>
 244
 245       <para revision="310490">The &man.amd.8; utility has been updated
 246         to version 6.2.</para>
 247
 248       <para revision="312516">&man.xz.1; has been updated to version
 249         5.2.3.</para>
 250
 251       <para revision="313796">&man.zlib.3; has been updated to version
 252         1.2.11.</para>
 253
 254       <para revision="316069">&man.ntpd.8; has been updated to version
 255         4.2.8p10.</para>
 256
 257       <para revision="316350">Timezone data files have been updated to
 258         version 2017b.</para>
 259
 260       <para revision="316958">&man.tcsh.1; has been updated to version
 261         6.20.00.</para>
 262
 263       <para revision="321304">&man.libarchive.3; has been updated to
 264         version 3.3.2.</para>
 265     </sect2>
 266
 267     <sect2 xml:id="userland-installer">
 268       <title>Installation and Configuration Tools</title>
 269
 270       <para revision="321202" contrib="sponsor" sponsor="&ff;">The
 271         default <acronym>EFI</acronym> partition created by
 272         &man.bsdinstall.8; has been increased from 800KB to
 273         200MB.</para>
 274     </sect2>
 275
 276     <sect2 xml:id="userland-rc">
 277       <title><filename class="directory">/etc/rc.d</filename>
 278         Scripts</title>
 279
 280       <para>&nbsp;</para>
 281     </sect2>
 282
 283     <sect2 xml:id="userland-periodic">
 284       <title><filename class="directory">/etc/periodic</filename>
 285         Scripts</title>
 286
 287       <para>&nbsp;</para>
 288     </sect2>
 289
 290     <sect2 xml:id="userland-libraries">
 291       <title>Runtime Libraries and API</title>
 292
 293       <para revision="316040">The &man.kvm.close.3; function has been
 294         updated to return the accumulated error from previous
 295         &man.close.2; calls.</para>
 296     </sect2>
 297
 298     <sect2 xml:id="userland-abi">
 299       <title>ABI Compatibility</title>
 300
 301       <para revision="309258">The type <literal>max_align_t</literal>
 302         is now defined for C11 compliance.</para>
 303     </sect2>
 304
 305     <sect2 xml:id="userland-debug">
 306       <title>Userland Debugging</title>
 307
 308       <para revision="304017">&man.ptrace.2; now supports events for
 309         thread creation and destruction, permitting more reliable
 310         debugging of threaded processes.</para>
 311
 312       <para revision="304499">&man.ptrace.2; now supports events for
 313         &man.vfork.2;, permitting reliable debugging across
 314         &man.vfork.2; invocations.</para>
 315
 316       <para revision="306786">Process core dumps now include the
 317         process ID (<acronym>PID</acronym>) and command line
 318         arguments.</para>
 319     </sect2>
 320   </sect1>
 321
 322   <sect1 xml:id="kernel">
 323     <title>Kernel</title>
 324
 325     <para>This section covers changes to kernel configurations, system
 326       tuning, and system control parameters that are not otherwise
 327       categorized.</para>
 328
 329     <sect2 xml:id="kernel-misc">
 330       <title>Miscellaneous Kernel Changes</title>
 331
 332       <para revision="321198">The &man.vt.4; driver has been updated,
 333         increasing the maximum framebuffer size.</para>
 334     </sect2>
 335
 336     <sect2 xml:id="kernel-bugfix">
 337       <title>Kernel Bug Fixes</title>
 338
 339       <para revision="317434">The &man.ipf.4; packet filter has been
 340         updated to prevent <literal>keep state</literal> from
 341         incorrectly implying <literal>keep frags</literal>, matching
 342         the behavior documented in &man.ipf.5;.</para>
 343     </sect2>
 344
 345     <sect2 xml:id="kernel-config">
 346       <title>Kernel Configuration</title>
 347
 348       <para>&nbsp;</para>
 349     </sect2>
 350
 351     <sect2 xml:id="kernel-sysctl">
 352       <title>System Tuning and Controls</title>
 353
 354       <para revision="321024">The
 355         <literal>kern.features.linux</literal> and
 356         <literal>kern.features.linux64</literal> flags have been
 357         added to the <literal>kern.features</literal> &man.sysctl.8;,
 358         which when set to <literal>1</literal>, indicate the kernel
 359         is configured with compatibility for 32-bit and/or 64-bit
 360         linux binaries, respectively.</para>
 361     </sect2>
 362   </sect1>
 363
 364   <sect1 xml:id="drivers">
 365     <title>Devices and Drivers</title>
 366
 367     <para>This section covers changes and additions to devices and
 368       device drivers since &release.prev;.</para>
 369
 370     <sect2 xml:id="drivers-device">
 371       <title>Device Drivers</title>
 372
 373       <para revision="306533" contrib="sponsor"
 374         sponsor="&chelsio;">&man.devctl.8; now supports a &quot;clear
 375         driver&quot; command as a complement to &quot;set
 376         driver&quot;.</para>
 377     </sect2>
 378
 379     <sect2 xml:id="drivers-storage">
 380       <title>Storage Drivers</title>
 381
 382       <para revision="319436">The &man.mpr.4; driver has been updated
 383         to support tri-mode
 384         (<acronym>SAS</acronym>/<acronym>SATA</acronym>/<acronym>PCIe</acronym>)
 385         Broadcom&reg; storage adapters.</para>
 386
 387       <para revision="321067">The &man.arcmsr.4; driver has been
 388         updated to version 1.40.00.00, adding support for ARC-1884
 389         <acronym>SATA</acronym> controllers.</para>
 390     </sect2>
 391
 392     <sect2 xml:id="drivers-network">
 393       <title>Network Drivers</title>
 394
 395       <para revision="309447" contrib="sponsor"
 396         sponsor="&chelsio;">The &man.cxgbev.4; driver has been added,
 397         providing support for Virtual Function devices
 398         (<acronym>VFs</acronym>) on Chelsio T4 and T5 adapters.</para>
 399
 400       <para revision="309560" contrib="sponsor"
 401         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 402         to provide support for Virtual Function devices
 403         (<acronym>VFs</acronym>) on Chelsio T6 adapters.</para>
 404
 405       <para revision="309560" contrib="sponsor"
 406         sponsor="&chelsio;">The &man.cxgbe.4; driver now supports
 407         devices using T6-based adapters which support 10, 25, 40, and
 408         100 Gbps.</para>
 409
 410       <para revision="312359">The &man.alc.4; driver has been updated
 411         to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
 412         Gigabit ethernet cards.</para>
 413
 414       <para revision="314019" contrib="sponsor" sponsor="&ms;">The
 415         &man.alc.4; driver has been updated to provide support for
 416         Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
 417         cards.</para>
 418
 419       <para revision="316485">The &man.qlnxe.4; driver has been added,
 420         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 421         adapters.</para>
 422
 423       <para revision="319270" contrib="sponsor"
 424         sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
 425         to firmware version 1.16.45.0 for T4, T5, and T6 cards.</para>
 426     </sect2>
 427   </sect1>
 428
 429   <sect1 xml:id="hardware">
 430     <title>Hardware Support</title>
 431
 432     <para>This section covers general hardware support for physical
 433       machines, hypervisors, and virtualization environments, as well
 434       as hardware changes and updates that do not otherwise fit in
 435       other sections of this document.</para>
 436
 437     <sect2 xml:id="hardware-support">
 438       <title>Hardware Support</title>
 439
 440       <para>&nbsp;</para>
 441     </sect2>
 442
 443     <sect2 xml:id="hardware-virtualization">
 444       <title>Virtualization Support</title>
 445
 446       <para revision="306520" contrib="sponsor"
 447         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 448         &man.bhyve.4; resets functions via <acronym>FLR</acronym> when
 449         a virtual machine is started and stopped.</para>
 450
 451       <para revision="306472" contrib="sponsor"
 452         sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
 453         &man.bhyve.4; supports more dynamic configurations permitting
 454         devices to be marked for passthrough or host use at
 455         runtime.</para>
 456     </sect2>
 457
 458     <sect2 xml:id="hardware-arm">
 459       <title>ARM Support</title>
 460
 461       <para>&nbsp;</para>
 462     </sect2>
 463   </sect1>
 464
 465   <sect1 xml:id="storage">
 466     <title>Storage</title>
 467
 468     <para>This section covers changes and additions to file systems
 469       and other storage subsystems, both local and networked.</para>
 470
 471     <sect2 xml:id="storage-general">
 472       <title>General Storage</title>
 473
 474       <para>&nbsp;</para>
 475     </sect2>
 476
 477     <sect2 xml:id="storage-net">
 478       <title>Networked Storage</title>
 479
 480       <para revision="318675">The <acronym>NFS</acronym> client now
 481         properly handles <literal>NFS4ERR_BAD_SESSION</literal> errors
 482         received from an <acronym>NFS</acronym> server.  Additionally,
 483         the kernel <acronym>RPC</acronym> client has been updated to
 484         prevent creating new <acronym>TCP</acronym> connections when
 485         <literal>ERESTART</literal> is received from
 486         &man.sosend.9;.</para>
 487
 488       <para revision="321031">The <acronym>NFS</acronym> client has
 489         been updated to support <acronym>pNFS</acronym>
 490         <literal>commit</literal> through the
 491         <literal>DS</literal>.</para>
 492     </sect2>
 493
 494     <sect2 xml:id="storage-zfs">
 495       <title>ZFS</title>
 496
 497       <para></para>
 498     </sect2>
 499
 500     <sect2 xml:id="storage-geom">
 501       <title>&man.geom.4;</title>
 502
 503       <para>&nbsp;</para>
 504     </sect2>
 505   </sect1>
 506
 507   <sect1 xml:id="boot">
 508     <title>Boot Loader Changes</title>
 509
 510     <para>This section covers the boot loader, boot menu, and other
 511       boot-related changes.</para>
 512
 513     <sect2 xml:id="boot-loader">
 514       <title>Boot Loader Changes</title>
 515
 516       <para>&nbsp;</para>
 517     </sect2>
 518
 519     <sect2 xml:id="boot-menu">
 520       <title>Boot Menu Changes</title>
 521
 522       <para>&nbsp;</para>
 523     </sect2>
 524   </sect1>
 525
 526   <sect1 xml:id="network">
 527     <title>Networking</title>
 528
 529     <para>This section describes changes that affect networking in
 530       &os;.</para>
 531
 532     <sect2 xml:id="network-general">
 533       <title>General Networking Changes</title>
 534
 535       <para revision="313558" contrib="sponsor"
 536         sponsor="&dellemc;">The network stack has been modified to fix
 537         incorrect or invalid <acronym>IP</acronym> addresses if
 538         multiple threads emit a <acronym>UDP</acronym>
 539         <literal>log_in_vain</literal> message concurrently.</para>
 540
 541       <para revision="317375" contrib="sponsor"
 542         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 543         been changed to use the estimated <acronym>RTT</acronym>
 544         instead of timestamps for receive buffer auto resizing.</para>
 545     </sect2>
 546
 547     <sect2 xml:id="network-protocols">
 548       <title>Network Protocols</title>
 549
 550       <para revision="309340" contrib="sponsor"
 551         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 552         (gratuitous <acronym>ARP</acronym>) retransmit has been added.
 553         A new &man.sysctl.8;,
 554         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 555         been added, which sets the maximum number of retransmissions
 556         when set to a non-zero value.</para>
 557     </sect2>
 558   </sect1>
 559
 560   <sect1 xml:id="ports">
 561     <title>Ports Collection and Package Infrastructure</title>
 562
 563     <para>This section covers changes to the &os;&nbsp;Ports
 564       Collection, package infrastructure, and package maintenance and
 565       installation tools.</para>
 566
 567     <sect2 xml:id="ports-infrastructure">
 568       <title>Infrastructure Changes</title>
 569
 570       <para>&nbsp;</para>
 571     </sect2>
 572
 573     <sect2 xml:id="ports-packages ">
 574       <title>Packaging Changes</title>
 575
 576       <para>&nbsp;</para>
 577     </sect2>
 578   </sect1>
 579
 580   <sect1 xml:id="doc">
 581     <title>Documentation</title>
 582
 583     <para>This section covers changes to the &os;&nbsp;Documentation
 584       Project sources and toolchain.</para>
 585
 586     <sect2 xml:id="doc-sources">
 587       <title>Documentation Source Changes</title>
 588
 589       <para>&nbsp;</para>
 590     </sect2>
 591
 592     <sect2 xml:id="doc-toolchain">
 593       <title>Documentation Toolchain Changes</title>
 594
 595       <para>&nbsp;</para>
 596     </sect2>
 597   </sect1>
 598
 599   <sect1 xml:id="releng">
 600     <title>Release Engineering and Integration</title>
 601
 602     <para>This section convers changes that are specific to the
 603       &os;&nbsp;Release Engineering processes.</para>
 604
 605     <sect2 xml:id="releng-changes">
 606       <title>Integration Changes</title>
 607
 608       <para>&nbsp;</para>
 609     </sect2>
 610   </sect1>
 611 </article>