release/doc/en_US.ISO8859-1/relnotes/article.xml

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   4 <!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
   5  %release;
   6 <!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
   7  %sponsor;
   8 <!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN" "vendor.ent">
   9  %vendor;
  10 <!ENTITY security SYSTEM "../../share/xml/security.xml">
  11 <!ENTITY errata SYSTEM "../../share/xml/errata.xml">
  12 ]>
  13 <article xmlns="http://docbook.org/ns/docbook"
  14   xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
  15
  16   <info>
  17     <title>&os; &release.current; Release Notes</title>
  18
  19     <author>
  20       <orgname>The &os; Project</orgname>
  21     </author>
  22
  23     <pubdate>$FreeBSD$</pubdate>
  24
  25     <!-- Last rev: 288943 -->
  26
  27     <copyright>
  28       <year>2017</year>
  29       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  30         Project</holder>
  31     </copyright>
  32
  33     <legalnotice xml:id="trademarks" role="trademarks">
  34       &tm-attrib.freebsd;
  35       &tm-attrib.ibm;
  36       &tm-attrib.ieee;
  37       &tm-attrib.intel;
  38       &tm-attrib.sparc;
  39       &tm-attrib.general;
  40     </legalnotice>
  41
  42     <abstract>
  43       <para>The release notes for &os; &release.current; contain
  44         a summary of the changes made to the &os; base system on the
  45         &release.branch; development line.  This document lists
  46         applicable security advisories that were issued since the last
  47         release, as well as significant changes to the &os; kernel and
  48         userland.  Some brief remarks on upgrading are also
  49         presented.</para>
  50     </abstract>
  51   </info>
  52
  53   <sect1 xml:id="intro">
  54     <title>Introduction</title>
  55
  56     <para>This document contains the release notes for &os;
  57       &release.current;.  It describes recently added, changed, or
  58       deleted features of &os;.  It also provides some notes on
  59       upgrading from previous versions of &os;.</para>
  60
  61     <para releasetype="current">The &release.type; distribution to
  62       which these release notes apply represents the latest point
  63       along the &release.branch; development branch since
  64       &release.branch; was created.  Information regarding pre-built,
  65       binary &release.type; distributions along this branch can be
  66       found at <uri
  67         xlink:href="&release.url;">&release.url;</uri>.</para>
  68
  69     <para releasetype="snapshot">The &release.type; distribution to
  70       which these release notes apply represents a point along the
  71       &release.branch; development branch between &release.prev; and
  72       the future &release.next;.  Information regarding pre-built,
  73       binary &release.type; distributions along this branch can be
  74       found at <uri
  75         xlink:href="&release.url;">&release.url;</uri>.</para>
  76
  77     <para releasetype="release">This distribution of &os;
  78       &release.current; is a &release.type; distribution.  It can be
  79       found at <uri xlink:href="&release.url;">&release.url;</uri> or
  80       any of its mirrors.  More information on obtaining this (or
  81       other) &release.type; distributions of &os; can be found in the
  82       <link
  83         xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
  84           &os;</quote> appendix</link> to the <link
  85         xlink:href="&url.books.handbook;/">&os;
  86         Handbook</link>.</para>
  87
  88     <para>All users are encouraged to consult the release errata
  89       before installing &os;.  The errata document is updated with
  90       <quote>late-breaking</quote> information discovered late in the
  91       release cycle or after the release.  Typically, it contains
  92       information on known bugs, security advisories, and corrections
  93       to documentation.  An up-to-date copy of the errata for &os;
  94       &release.current; can be found on the &os; Web site.</para>
  95
  96     <para>This document describes the most user-visible new or changed
  97       features in &os; since &release.prev;.  In general, changes
  98       described here are unique to the &release.branch; branch unless
  99       specifically marked as &merged; features.</para>
 100
 101     <para>Typical release note items document recent security
 102       advisories issued after &release.prev;, new drivers or hardware
 103       support, new commands or options, major bug fixes, or
 104       contributed software upgrades.  They may also list changes to
 105       major ports/packages or release engineering practices.  Clearly
 106       the release notes cannot list every single change made to &os;
 107       between releases; this document focuses primarily on security
 108       advisories, user-visible changes, and major architectural
 109       improvements.</para>
 110   </sect1>
 111
 112   <sect1 xml:id="upgrade">
 113     <title>Upgrading from Previous Releases of &os;</title>
 114
 115     <para arch="amd64,i386">Binary upgrades between RELEASE versions
 116       (and snapshots of the various security branches) are supported
 117       using the &man.freebsd-update.8; utility.  The binary upgrade
 118       procedure will update unmodified userland utilities, as well as
 119       unmodified GENERIC kernels distributed as a part of an official
 120       &os; release.  The &man.freebsd-update.8; utility requires that
 121       the host being upgraded have Internet connectivity.</para>
 122
 123     <para>Source-based upgrades (those based on recompiling the &os;
 124       base system from source code) from previous versions are
 125       supported, according to the instructions in
 126       <filename>/usr/src/UPDATING</filename>.</para>
 127
 128     <important>
 129       <para>Upgrading &os; should only be attempted after backing up
 130         <emphasis>all</emphasis> data and configuration files.</para>
 131     </important>
 132   </sect1>
 133
 134   <sect1 xml:id="security-errata">
 135     <title>Security and Errata</title>
 136
 137     <para>This section lists the various Security Advisories and
 138       Errata Notices since &release.prev;.</para>
 139
 140     <sect2 xml:id="security">
 141       <title>Security Advisories</title>
 142
 143       &security;
 144     </sect2>
 145
 146     <sect2 xml:id="errata">
 147       <title>Errata Notices</title>
 148
 149       &errata;
 150     </sect2>
 151   </sect1>
 152
 153   <sect1 xml:id="userland">
 154     <title>Userland</title>
 155
 156     <para>This section covers changes and additions to userland
 157       applications, contributed software, and system utilities.</para>
 158
 159     <sect2 xml:id="userland-config">
 160       <title>Userland Configuration Changes</title>
 161
 162       <para revision="313203">The &man.inetd.8; utility can now be
 163         built without <literal>libwrap</literal> support when
 164         <literal>WITHOUT_TCP_WRAPPERS</literal> is set in
 165         &man.src.conf.5;.</para>
 166
 167       <para revision="316045">The &man.libthr.3; library and related
 168         files are now evaluated and removed by the
 169         <literal>delete-old-libs</literal> target when upgrading the
 170         system if <literal>WITHOUT_LIBTHR</literal> is
 171         set in &man.src.conf.5;.</para>
 172
 173       <para revision="316423" contrib="sponsor" sponsor="&ff;">The
 174         <literal>WITH_LLD_AS_LD</literal> build knob has been added,
 175         which installs <application>LLD</application> as
 176         <filename>/usr/bin/ld</filename> if set.</para>
 177     </sect2>
 178
 179     <sect2 xml:id="userland-programs">
 180       <title>Userland Application Changes</title>
 181
 182       <para revision="308720" contrib="sponsor" sponsor="&gandi;">The
 183         &man.cron.8; utility has been updated to add support for
 184         including files within <filename
 185           class="directory">/etc/cron.d</filename> and <filename
 186           class="directory">/usr/local/etc/cron.d</filename> by
 187         default.</para>
 188
 189       <para revision="308721" contrib="sponsor" sponsor="&gandi;">The
 190         &man.syslogd.8; utility has been updated to add the
 191         <literal>include</literal> keyword which allows specifying
 192         a directory containing configuration files to be included in
 193         addition to &man.syslogd.8;.  The default &man.syslogd.8; has
 194         been updated to include <filename
 195           class="directory">/etc/syslog.d</filename> and <filename
 196           class="directory">/usr/local/etc/syslog.d</filename> by
 197         default.</para>
 198
 199       <para revision="315514" contrib="sponsor" sponsor="&yandex;">The
 200         &man.setkey.8; utility has been modified to show the runtime
 201         <acronym>NAT-T</acronym> configuration.  The
 202         <literal>-g</literal> and <literal>-t</literal> flags have
 203         been added, which list only global and virtual policies,
 204         respectively when used with the <literal>-D</literal> and
 205         <literal>-P</literal> flags.</para>
 206
 207       <para revision="316098" contrib="sponsor"
 208         sponsor="&dellemc;">The &man.getaddrinfo.1; utility has been
 209         added, ported from NetBSD.</para>
 210
 211       <para revision="316944" contrib="sponsor"
 212         sponsor="&multiplay;">The &man.jail.8; utility has been
 213         updated to allow explicitly-assigned <acronym>IPv4</acronym>
 214         and <acronym>IPv6</acronym> addresses to be used within
 215         a jail.</para>
 216
 217       <para revision="317855">The &man.daemon.8; utility has been
 218         updated to allow redirecting &man.stdout.4; and &man.stderr.4;
 219         output to &man.syslog.3; and to a file.</para>
 220     </sect2>
 221
 222     <sect2 xml:id="userland-contrib">
 223       <title>Contributed Software</title>
 224
 225       <para revision="307729">&man.unbound.8; has been updated to
 226         version 1.5.10.</para>
 227
 228       <para revision="309511"><application>Subversion</application>
 229         has been updated to version 1.9.5.</para>
 230
 231       <para revision="309847">&man.file.1; has been updated to version
 232         5.29.</para>
 233
 234       <para revision="310490">The &man.amd.8; utility has been updated
 235         to version 6.2.</para>
 236
 237       <para revision="312336">The <acronym>CLDR</acronym> locales have
 238         been updated to version 30.0.3.  The unicode locales have been
 239         updated to version 9.0.0.</para>
 240
 241       <para revision="312517">&man.xz.1; has been updated to version
 242         5.2.3.</para>
 243
 244       <para revision="313537">&man.tcpdump.1; has been updated to
 245         version 4.9.0.</para>
 246
 247       <para revision="313795">&man.zlib.3; has been updated to version
 248         1.2.11.</para>
 249
 250       <para revision="313980"><application>openresolv</application>
 251         has been updated to version 3.9.0.</para>
 252
 253       <para revision="313680">The NetBSD test suite has been updated
 254         to the 01.11.2017_23.20 snapshot.</para>
 255
 256       <para revision="314278"><literal>libucl</literal> has been
 257         updated to version 20170219.</para>
 258
 259       <para revision="315432">&man.libarchive.3; has been updated to
 260         version 3.3.1.</para>
 261
 262       <para revision="315995">&man.dma.8; has been updated to the
 263         2017-02-10 snapshot.</para>
 264
 265       <para revision="316068">&man.ntpd.8; has been updated to version
 266         4.2.8p10.</para>
 267
 268       <para revision="316303"><application>ACPICA</application> has
 269         been updated to version 20170303.</para>
 270
 271       <para revision="316349">Timezone data files have been updated to
 272         version 2017b.</para>
 273
 274       <para revision="316420">&man.mandoc.1; has been updated to
 275         version 1.14.</para>
 276
 277       <para revision="316423"><application>Clang</application> has
 278         been updated to version 4.0.0.</para>
 279
 280       <para revision="316423"><application>LLVM</application> has
 281         been updated to version 4.0.0.</para>
 282
 283       <para revision="316423"><application>LLD</application> has
 284         been updated to version 4.0.0.</para>
 285
 286       <para revision="316423"><application>LLDB</application> has
 287         been updated to version 4.0.0.</para>
 288
 289       <para revision="316423"><application>compiler-rt</application>
 290         has been updated to version 4.0.0.</para>
 291
 292       <para revision="316423"><application>libc++</application> has
 293         been updated to version 4.0.0.</para>
 294
 295       <para revision="316957">&man.tcsh.1; has been updated to version
 296         6.20.00.</para>
 297     </sect2>
 298
 299     <sect2 xml:id="userland-installer">
 300       <title>Installation and Configuration Tools</title>
 301
 302       <para>&nbsp;</para>
 303     </sect2>
 304
 305     <sect2 xml:id="userland-rc">
 306       <title><filename class="directory">/etc/rc.d</filename>
 307         Scripts</title>
 308
 309       <para>&nbsp;</para>
 310     </sect2>
 311
 312     <sect2 xml:id="userland-periodic">
 313       <title><filename class="directory">/etc/periodic</filename>
 314         Scripts</title>
 315
 316       <para revision="317857">The <filename>410.status-mfi</filename>
 317         &man.periodic.8; script has been added to monitor the status
 318         of &man.mfi.4; volumes.</para>
 319     </sect2>
 320
 321     <sect2 xml:id="userland-libraries">
 322       <title>Runtime Libraries and API</title>
 323
 324       <para revision="317618" contrib="sponsor"
 325         sponsor="&dellemc;">The <function>clock_nanosleep()</function>
 326         system call has been added.  The
 327         <function>nanosleep()</function> system call is now a wrapper
 328         around <function>clock_nanosleep()</function>.</para>
 329     </sect2>
 330
 331     <sect2 xml:id="userland-abi">
 332       <title>ABI Compatibility</title>
 333
 334       <para revision="315274" contrib="sponsor"
 335         sponsor="&dellemc;">The
 336         <function>sem_clockwait_np()</function> library function has
 337         been added, which allows the caller to specify the reference
 338         clock and choose between absolute and relative mode.</para>
 339
 340       <para revision="315282">The <application>clang</application>
 341         <literal>nullability</literal> attribute has been added to the
 342         <literal>C</literal> library headers.</para>
 343     </sect2>
 344   </sect1>
 345
 346   <sect1 xml:id="kernel">
 347     <title>Kernel</title>
 348
 349     <para>This section covers changes to kernel configurations, system
 350       tuning, and system control parameters that are not otherwise
 351       categorized.</para>
 352
 353     <sect2 xml:id="kernel-bugfix">
 354       <title>Kernel Bug Fixes</title>
 355
 356       <para revision="316039">The &man.kvm.close.3; function has been
 357         updated to return the accumulated error from previous
 358         &man.close.2; calls.</para>
 359
 360       <para revision="317434">The &man.ipf.4; packet filter has been
 361         updated to prevent &quot;keep state&quot; from incorrectly
 362         implying &quot;keep frags&quot;, matching the behavior
 363         documented in &man.ipf.5;.</para>
 364     </sect2>
 365
 366     <sect2 xml:id="kernel-config">
 367       <title>Kernel Configuration</title>
 368
 369       <para revision="315514" contrib="sponsor" sponsor="&yandex;">The
 370         <literal>IPSEC_NAT_T</literal> kernel configuration option has
 371         been removed.  Support for <acronym>NAT-T</acronym> is now
 372         enabled by default.</para>
 373
 374       <para revision="315514" contrib="sponsor" sponsor="&yandex;">The
 375         <literal>IPSEC_FILTERTUNNEL</literal> kernel option has been
 376         removed, which was deprecated by the
 377         <literal>net.inet.ipsec.filtertunnel</literal> sysctl.</para>
 378     </sect2>
 379
 380     <sect2 xml:id="kernel-modules">
 381       <title>Kernel Modules</title>
 382
 383       <para revision="315514" contrib="sponsor" sponsor="&yandex;">The
 384         <literal>ipsec</literal> and <literal>tcpmd5</literal> kernel
 385         modules have been added.</para>
 386
 387       <para revision="316274" contrib="sponsor" sponsor="&yandex;">The
 388         &man.ipfw.4; packet filter has been updated to add support for
 389         named dynamic states.</para>
 390
 391       <para revision="316444" contrib="sponsor" sponsor="&yandex;">The
 392         <literal>ipfw_nptv6</literal> kernel module has been added,
 393         implementing Network Prefix Translation for
 394         <acronym>IPv6</acronym> as defined in <acronym>RFC</acronym>
 395         6296.</para>
 396
 397       <para revision="316446" contrib="sponsor" sponsor="&yandex;">The
 398         <literal>ipfw_nat64</literal> kernel module has been added,
 399         implementing stateless and stateful
 400         <acronym>NAT64</acronym>.</para>
 401
 402       <para revision="316660" contrib="sponsor" sponsor="&ff;">The
 403         &man.cfumass.4; device has been added, providing a storage
 404         frontend to <acronym>USB</acronym>
 405         <acronym>OTG</acronym>-capable hardware.</para>
 406
 407       <para revision="317045" contrib="sponsor" sponsor="&yandex;">The
 408         <literal>ipfw_pmod</literal> kernel module has been added,
 409         designed for modifying packets of any protocol.</para>
 410
 411       <note>
 412         <para>At present, only <acronym>TCP</acronym>
 413           <acronym>MSS</acronym> modification is implemented.</para>
 414       </note>
 415     </sect2>
 416
 417     <sect2 xml:id="kernel-sysctl">
 418       <title>System Tuning and Controls</title>
 419
 420       <para revision="315539">The
 421         <literal>vfs.root_mount_always_wait</literal> tunable has been
 422         added, which forces the kernel to wait for root mount holds
 423         even if the root device is already present.</para>
 424
 425       <para revision="316120" contrib="sponsor"
 426         sponsor="&dellemc;">When the system real time clock
 427         (<acronym>RTC</acronym>) is adjusted, such as by
 428         <function>clock_settime()</function>, sleeping threads are now
 429         awakened and absolute sleep times are reevaluated based on the
 430         new value of the RTC.</para>
 431     </sect2>
 432   </sect1>
 433
 434   <sect1 xml:id="drivers">
 435     <title>Devices and Drivers</title>
 436
 437     <para>This section covers changes and additions to devices and
 438       device drivers since &release.prev;.</para>
 439
 440     <sect2 xml:id="drivers-device">
 441       <title>Device Drivers</title>
 442
 443       <para revision="308104">The &man.chromebook.platform.4; driver
 444         has been added, providing support for various Chromebook
 445         models.</para>
 446     </sect2>
 447
 448     <sect2 xml:id="drivers-storage">
 449       <title>Storage Drivers</title>
 450
 451       <para>&nbsp;</para>
 452     </sect2>
 453
 454     <sect2 xml:id="drivers-network">
 455       <title>Network Drivers</title>
 456
 457       <para revision="309377" contrib="sponsor"
 458         sponsor="&broadcom;">The &man.bnxt.4; driver has been added,
 459         providing support for Broadcom&reg; NetXtreme-C&trade; and
 460         NetXtreme-E&trade; devices.</para>
 461
 462       <para revision="317116">The &man.qlnxe.4; driver has been added,
 463         providing support for Cavium&reg; Qlogic&trade; 45000 Series
 464         adapters.</para>
 465
 466       <para revision="317182">The &man.qlxgbe.4; firmware has been
 467         updated to version 5.4.64.</para>
 468     </sect2>
 469   </sect1>
 470
 471   <sect1 xml:id="hardware">
 472     <title>Hardware Support</title>
 473
 474     <para>This section covers general hardware support for physical
 475       machines, hypervisors, and virtualization environments, as well
 476       as hardware changes and updates that do not otherwise fit in
 477       other sections of this document.</para>
 478
 479     <sect2 xml:id="hardware-support">
 480       <title>Hardware Support</title>
 481
 482       <para>&nbsp;</para>
 483     </sect2>
 484
 485     <sect2 xml:id="hardware-virtualization">
 486       <title>Virtualization Support</title>
 487
 488       <para>&nbsp;</para>
 489     </sect2>
 490
 491     <sect2 xml:id="hardware-arm">
 492       <title>ARM Support</title>
 493
 494       <para revision="305436">Support for the Allwinner A13 board has
 495         been added.</para>
 496     </sect2>
 497   </sect1>
 498
 499   <sect1 xml:id="storage">
 500     <title>Storage</title>
 501
 502     <para>This section covers changes and additions to file systems
 503       and other storage subsystems, both local and networked.</para>
 504
 505     <sect2 xml:id="storage-general">
 506       <title>General Storage</title>
 507
 508       <para>&nbsp;</para>
 509     </sect2>
 510
 511     <sect2 xml:id="storage-net">
 512       <title>Networked Storage</title>
 513
 514       <para>&nbsp;</para>
 515     </sect2>
 516
 517     <sect2 xml:id="storage-zfs">
 518       <title>ZFS</title>
 519
 520       <para>&nbsp;</para>
 521     </sect2>
 522
 523     <sect2 xml:id="storage-geom">
 524       <title>&man.geom.4;</title>
 525
 526       <para>&nbsp;</para>
 527     </sect2>
 528   </sect1>
 529
 530   <sect1 xml:id="boot">
 531     <title>Boot Loader Changes</title>
 532
 533     <para>This section covers the boot loader, boot menu, and other
 534       boot-related changes.</para>
 535
 536     <sect2 xml:id="boot-loader">
 537       <title>Boot Loader Changes</title>
 538
 539       <para revision="307632" contrib="sponsor" sponsor="&gandi;">The
 540         <acronym>EFI</acronym> loader has been updated to support
 541         <acronym>TFTPFS</acronym>, providing netboot support without
 542         requiring an <acronym>NFS</acronym> server.</para>
 543     </sect2>
 544
 545     <sect2 xml:id="boot-menu">
 546       <title>Boot Menu Changes</title>
 547
 548       <para>&nbsp;</para>
 549     </sect2>
 550   </sect1>
 551
 552   <sect1 xml:id="network">
 553     <title>Networking</title>
 554
 555     <para>This section describes changes that affect networking in
 556       &os;.</para>
 557
 558     <sect2 xml:id="network-general">
 559       <title>General Network Changes</title>
 560
 561       <para revision="311681" contrib="sponsor" sponsor="&yandex;">The
 562         network stack has been updated to include
 563         <function>ip6_tryforward()</function>, providing performance
 564         benefits as result of a reduced number of checks.</para>
 565
 566       <para revision="313523" contrib="sponsor"
 567         sponsor="&dellemc;">The network stack has been modified to fix
 568         incorrect or invalid <acronym>IP</acronym> addresses if
 569         multiple threads emit a <acronym>UDP</acronym>
 570         <literal>log_in_vein</literal> message concurrently.</para>
 571
 572       <para revision="317386" contrib="sponsor"
 573         sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
 574         been changed to use the estimated <acronym>RTT</acronym>
 575         instead of timestamps for receive buffer auto resizing.</para>
 576     </sect2>
 577
 578     <sect2 xml:id="network-protocols">
 579       <title>Network Protocols</title>
 580
 581       <para revision="309337" contrib="sponsor"
 582         sponsor="&dellemc;">Support for <acronym>GARP</acronym>
 583         retransmit has been added.  A new &man.sysctl.8;,
 584         <literal>net.link.ether.inet.garp_rexmit_count</literal>, has
 585         been added, which sets the maximum number of retransmissions
 586         when set to a non-zero value.</para>
 587
 588       <para revision="315514" contrib="sponsor"
 589         sponsor="&yandex;">Support for the
 590         <literal>UDP_ENCAP_ESPINUDP_NON_IKE</literal> encapsulation
 591         type has been removed.</para>
 592     </sect2>
 593   </sect1>
 594
 595   <sect1 xml:id="ports">
 596     <title>Ports Collection and Package Infrastructure</title>
 597
 598     <para>This section covers changes to the &os;&nbsp;Ports
 599       Collection, package infrastructure, and package maintenance and
 600       installation tools.</para>
 601
 602     <sect2 xml:id="ports-infrastructure">
 603       <title>Infrastructure Changes</title>
 604
 605       <para>&nbsp;</para>
 606     </sect2>
 607
 608     <sect2 xml:id="ports-packages ">
 609       <title>Packaging Changes</title>
 610
 611       <para>&nbsp;</para>
 612     </sect2>
 613   </sect1>
 614
 615   <sect1 xml:id="doc">
 616     <title>Documentation</title>
 617
 618     <para>This section covers changes to the &os;&nbsp;Documentation
 619       Project sources and toolchain.</para>
 620
 621     <sect2 xml:id="doc-sources">
 622       <title>Documentation Source Changes</title>
 623
 624       <para>&nbsp;</para>
 625     </sect2>
 626
 627     <sect2 xml:id="doc-toolchain">
 628       <title>Documentation Toolchain Changes</title>
 629
 630       <para>&nbsp;</para>
 631     </sect2>
 632   </sect1>
 633
 634   <sect1 xml:id="releng">
 635     <title>Release Engineering and Integration</title>
 636
 637     <para>This section convers changes that are specific to the
 638       &os;&nbsp;Release Engineering processes.</para>
 639
 640     <sect2 xml:id="releng-changes">
 641       <title>Integration Changes</title>
 642
 643       <para>&nbsp;</para>
 644     </sect2>
 645   </sect1>
 646 </article>