article.xml revision 285461
1<?xml version="1.0" encoding="iso-8859-1"?> 2<!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN" 3 "../../../share/xml/freebsd50.dtd" [ 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: head/release/doc/en_US.ISO8859-1/relnotes/article.xml 285461 2015-07-13 15:44:37Z gjb $</pubdate> 24 25 <!-- Last rev: 284814 --> 26 27 <copyright> 28 <year>2015</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="266463">The default &man.newsyslog.conf.5; now 163 includes files in the 164 <filename>/etc/newsyslog.conf.d/</filename> and 165 <filename>/usr/local/etc/newsyslog.conf.d/</filename> 166 directories by default for &man.newsyslog.8;.</para> 167 168 <para revision="270675">The &man.mailwrapper.8; utility has been 169 updated to use &man.mailer.conf.5; from the 170 <literal>LOCALBASE</literal> environment variable, which 171 defaults to <filename class="directory">/usr/local</filename> 172 if unset.</para> 173 174 <para revision="272350">The <literal>MK_ARM_EABI</literal> 175 &man.src.conf.5; option has been removed.</para> 176 </sect2> 177 178 <sect2 xml:id="userland-programs"> 179 <title>Userland Application Changes</title> 180 181 <para revision="258838" contrib="sponsor" sponsor="&ff;, 182 &google;" sponsorurl="">The &man.casperd.8; daemon has been 183 added, which provides access to functionality that is not 184 available in the <quote>capability mode</quote> 185 sandbox.</para> 186 187 <para revision="260594">When unable to load a kernel module with 188 &man.kldload.8;, a message informing to view output of 189 &man.dmesg.8; is now printed, opposed to the previous output 190 <quote>Exec format error.</quote>.</para> 191 192 <para revision="260910">Allow &man.pciconf.8; to identify PCI 193 devices that are attached to a driver to be identified by 194 their device name instead of just the selector. Additionally, 195 an optional device argument to the <literal>-l</literal> flag 196 to restrict the output to only listing details about a single 197 device.</para> 198 199 <para revision="260913">A new flag, <quote>onifconsole</quote> 200 has been added to <filename>/etc/ttys</filename>. This allows 201 the system to provide a login prompt via serial console if the 202 device is an active kernel console, otherwise it is equivalent 203 to <literal>off</literal>.</para> 204 205 <para revision="260926">Support for displaying VPD for PCI 206 devices via &man.pciconf.8; has been added.</para> 207 208 <para revision="261498">&man.ping.8; protects against malicious 209 network packets using the Capsicum framework to drop 210 privileges.</para> 211 212 <para revision="265229">The &man.ps.1; utility has been 213 updated to include the <literal>-J</literal> flag, used to 214 filter output by matching &man.jail.8; IDs and names. 215 Additionally, argument <literal>0</literal> can be used to 216 <literal>-J</literal> to only list processes running on the 217 host system.</para> 218 219 <para revision="265249">The &man.top.1; utility has been updated 220 to filter by &man.jail.8; ID or name, in followup to the 221 &man.ps.1; change in <literal>r265229</literal>.</para> 222 223 <para revision="266209">The &man.pmcstat.8; utility has been 224 updated to include a new flag, <literal>-l</literal>, which 225 ends event collection after the specified number of 226 seconds.</para> 227 228 <para revision="270745">The &man.ps.1; utility has been updated 229 to include a new keyword, <quote>tracer</quote>, which 230 displays the <acronym>PID</acronym> of the tracing 231 process.</para> 232 233 <para revision="271482">Support for adding empty partitions has 234 been added to the &man.mkimg.1; utility.</para> 235 236 <para revision="272166">The &man.primes.6; utility has been 237 updated to correctly enumerate prime numbers between 238 <literal>4295098369</literal> and 239 <literal>3825123056546413050</literal>, which prior to this 240 change, it would be possible for returned values to be 241 incorrectly identified as prime numbers.</para> 242 243 <para revision="272198">The &man.mkimg.1; utility has been 244 updated to include three options used to print information 245 about &man.mkimg.1; itself:</para> 246 247 <informaltable frame="none" pgwide="0"> 248 <tgroup cols="2"> 249 <colspec colwidth="1*"/> 250 <colspec colwidth="1*"/> 251 <thead> 252 <row> 253 <entry>Option</entry> 254 <entry>Output</entry> 255 </row> 256 </thead> 257 258 <tbody> 259 <row> 260 <entry><literal>--version</literal></entry> 261 <entry>The current version of the &man.mkimg.1; 262 utility</entry> 263 </row> 264 265 <row> 266 <entry><literal>--formats</literal></entry> 267 <entry>The disk image file formats supported by 268 &man.mkimg.1;</entry> 269 </row> 270 271 <row> 272 <entry><literal>--schemes</literal></entry> 273 <entry>The partition schemes supported by 274 &man.mkimg.1;</entry> 275 </row> 276 </tbody> 277 </tgroup> 278 </informaltable> 279 280 <para revision="272488">Userland &man.ctf.5; support in 281 &man.dtrace.1; has been added. With this change, 282 &man.dtrace.1; is able to resolve type info for function and 283 <acronym>USDT</acronym> probe arguments, and function return 284 values.</para> 285 286 <para revision="274960">The &man.elfdump.1; utility has been 287 updated to support capability mode provided by 288 &man.capsicum.4;.</para> 289 290 <para revision="275680" contrib="sponsor" sponsor="&ff;">The 291 &man.fstyp.8; utility has been added, which is used to 292 determine the filesystem on a specified device.</para> 293 294 <para revision="276881">The <literal>libedit</literal> library 295 has been updated to support <acronym>UTF</acronym>-8, which 296 additionally provides unicode support to &man.sh.1;.</para> 297 298 <para revision="277166" arch="powerpc">The &man.ptrace.2; system 299 call has been updated include support for Altivec registers on 300 &os;/&arch.powerpc;.</para> 301 302 <para revision="278320">A new device control utility, 303 &man.devctl.8; has been added, which allows making 304 administrative changes to individual devices, such as 305 attaching and detaching drivers, and enabling and disabling 306 devices. The &man.devctl.8; utility uses the new 307 &man.devctl.3; library.</para> 308 309 <para revision="279315" contrib="sponsor" sponsor="&ff;">The 310 &man.uefisign.8; utility has been added.</para> 311 312 <para revision="279571" contrib="sponsor" 313 sponsor="&scaleengine;">The &man.freebsd-update.8; utility has 314 been updated to prevent fetching updated binary patches when 315 a previous upgrade has not been thoroughly completed.</para> 316 317 <para revision="279122" contrib="sponsor" 318 sponsor="&juniper;">The &man.netstat.1; utility has been 319 updated to link against the &man.libxo.3; shared 320 library.</para> 321 322 <para revision="280870">A regression in the &man.libarchive.3; 323 library that would prevent a directory from being included in 324 the archive when <literal>--one-file-system</literal> is used 325 has been fixed.</para> 326 327 <para revision="281311" contrib="sponsor" sponsor="&ff;">The 328 &man.ar.1; utility has been updated to set 329 <literal>ARCHIVE_EXTRACT_SECURE_SYMLINKS</literal> and 330 <literal>ARCHIVE_EXTRACT_SECURE_NODOTDOT</literal> to disallow 331 directory traversal when extracting an archive, similar to 332 &man.tar.1;.</para> 333 334 <para revision="282208" contrib="sponsor" 335 sponsor="&multiplay;">The &man.chflags.1;, &man.chgrp.1;, 336 &man.chmod.1;, and &man.chown.8; utilities now affect symbolic 337 links when the <literal>-R</literal> flag is specified, as 338 documented in &man.symlink.7;.</para> 339 340 <para revision="281617">A race condition in &man.wc.1; that 341 would cause final results to be sent to &man.stderr.4; when 342 receiving the <literal>SIGINFO</literal> signal has been 343 fixed.</para> 344 345 <para revision="283961">The &man.pw.8; utility has been updated 346 with a new flag, <literal>-R</literal>, that sets the root 347 directory within which the utility will operate.</para> 348 349 <para revision="284297" contrib="sponsor" 350 sponsor="&clusterhq;">The &man.lockstat.1; utility has been 351 updated with several improvements:</para> 352 353 <itemizedlist> 354 <listitem> 355 <para>Spin locks are now reported as the amount of time 356 spinning, instead of loop iterations.</para> 357 </listitem> 358 359 <listitem> 360 <para>Reader locks are now recognized as adaptive that can 361 spin on &os;.</para> 362 </listitem> 363 364 <listitem> 365 <para>Lock aquisition events for successful reader try-lock 366 events are now reported.</para> 367 </listitem> 368 369 <listitem> 370 <para>Spin and block events are now reported before lock 371 acquisition events.</para> 372 </listitem> 373 </itemizedlist> 374 375 <para revision="284589" contrib="sponsor" 376 sponsor="&scaleengine;">The &man.fstyp.8; utility has been 377 updated to be able to detect &man.zfs.8; and &man.geli.8; 378 filesystems.</para> 379 380 <para revision="282608">The &man.date.1; utility has been 381 updated to print the modification time of the file passed as 382 an argument to the <literal>-r</literal> flag, improving 383 compatibility with the <acronym>GNU</acronym> &man.date.1; 384 utility behavior.</para> 385 </sect2> 386 387 <sect2 xml:id="userland-contrib"> 388 <title>Contributed Software</title> 389 390 <para revision="258884" contrib="sponsor" 391 sponsor="&darpa_afrl;">&man.lldb.1; has been updated to 392 upstream snapshot version r196259.</para> 393 394 <para revision="259626">Timezone data files have been updated to 395 version 2013i.</para> 396 397 <para revision="260445">&man.byacc.1; has been updated to 398 version 20140101.</para> 399 400 <para revision="261071">&man.jemalloc.3; has been updated to 401 version 3.5.0.</para> 402 403 <para revision="261283"><application>libc++</application> has 404 been updated to version 3.4.</para> 405 406 <para revision="261320"><application>OpenSSH</application> has 407 been updated to 6.5p1.</para> 408 409 <para revision="261344"><application>mdocml</application> has 410 been updated to version 1.12.3.</para> 411 412 <para revision="261991"><application>LLVM</application> and 413 <application>Clang</application> have been updated to 414 version 3.4.</para> 415 416 <para revision="276577"><application>file</application> has been 417 updated to version 5.22.</para> 418 419 <para revision="275718">The <application>binutils</application> 420 suite of utilities has been updated to include upstream 421 patches that add new relocations for &arch.powerpc; 422 support.</para> 423 424 <para revision="276398" contrib="sponsor" sponsor="&ff;">The 425 <application>ELF Tool Chain</application> has been updated to 426 upstream revision r3136.</para> 427 428 <para revision="276551">The <application>texinfo</application> 429 utility and <literal>info</literal> pages were removed from 430 the base system. The <filename 431 role="package">print/texinfo</filename> port should be 432 installed on systems where <literal>info</literal> pages are 433 needed.</para> 434 435 <para revision="276796" contrib="sponsor" sponsor="&ff;">The ELF 436 object manipulation tools 437 <application>addr2line</application>, 438 <application>elfcopy (strip)</application>, 439 <application>nm</application>, 440 <application>readelf</application>, 441 <application>size</application>, and 442 <application>strings</application> were switched to the 443 versions from the ELF Tool Chain project.</para> 444 445 <para revision="276881">The <literal>libedit</literal> library 446 has been updated to include <acronym>UTF-8</acronym> support, 447 adding <acronym>UTF-8</acronym> support to the &man.sh.1; 448 shell.</para> 449 450 <para revision="278433">The &man.xz.1; utility has been updated 451 to support multi-threaded compression.</para> 452 453 <para revision="280932" contrib="sponsor" sponsor="&ff;">The 454 <application>elftoolchain</application> utilities have been 455 updated to version 3179.</para> 456 457 <para revision="281316">The &man.xz.1; utility has been updated 458 to version 5.2.1.</para> 459 460 <para revision="281373">The &man.nvi.1; utility has been updated 461 to version 2.1.3.</para> 462 463 <para revision="281806">The &man.wpa.supplicant.8; and 464 &man.hostapd.8; utilities have been updated to version 465 2.4.</para> 466 467 <para revision="282089">The &man.unbound.8; utility has been 468 updated to version 1.5.3.</para> 469 470 <para revision="282434" contrib="sponsor" sponsor="&ff;">The 471 &man.resolvconf.8; utility has been updated to version 472 3.7.0.</para> 473 474 <para revision="284254"><application>bmake</application> has 475 been updated to version 20150606.</para> 476 477 <para revision="283092">The &man.acpi.4; subsystem has been 478 updated to version 20150515.</para> 479 480 <para revision="284237">The &man.file.1; utility has been 481 updated to version 5.23.</para> 482 483 <para revision="285229"><application>sendmail</application> has 484 been updated to 8.15.2. Starting with &os; 11.0 and 485 sendmail 8.15, sendmail uses uncompressed IPv6 addresses by 486 default, i.e., they will not contain <quote>::</quote>. For 487 example, instead of <quote>::1</quote>, it will be 488 <quote>0:0:0:0:0:0:0:1</quote>. This permits a zero subnet to 489 have a more specific match, such as different map entries for 490 IPv6:0:0 vs IPv6:0. This change requires that configuration 491 data (including maps, files, classes, custom ruleset, etc.) 492 must use the same format, so make certain such configuration 493 data is upgrading. As a very simple check search for patterns 494 like 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'. To return to the 495 old behavior, set the m4 option 496 <literal>confUSE_COMPRESSED_IPV6_ADDRESSES</literal> or the cf 497 option <literal>UseCompressedIPv6Addresses</literal>.</para> 498 499 <para revision="285329"><application>OpenSSL</application> has 500 been updated to version 1.0.1p.</para> 501 </sect2> 502 503 <sect2 xml:id="userland-installer"> 504 <title>Installation and Configuration Tools</title> 505 506 <para revision="271539">The &man.bsdinstall.8; partition editor 507 and &man.sade.8; utility have been updated to include native 508 <acronym>ZFS</acronym> support.</para> 509 510 <para revision="272274">The &os; installation utility, 511 &man.bsdinstall.8;, has been updated to set the 512 <literal>canmount</literal> &man.zfs.8; property to 513 <literal>off</literal> for the <filename 514 class="directory">/var</filename> dataset, preventing the 515 contents of directories within <filename 516 class="directory">/var</filename> from conflicting when 517 using multiple boot environments, such as that provided by 518 <filename role="package">sysutils/beadm</filename>.</para> 519 520 <para revision="274394">The &man.bsdconfig.8; utility has been 521 updated to skip the initial &man.tzsetup.8; 522 <acronym>UTC</acronym> versus wall-clock time prompt when run 523 in a virtual machine, determined when the 524 <literal>kern.vm_guest</literal> &man.sysctl.8; is set to 525 <literal>1</literal>.</para> 526 527 <para revision="275874">The &man.bsdinstall.8; utility has been 528 updated to use the new &man.dpv.3; library to display progress 529 when extracting the &os; distributions.</para> 530 </sect2> 531 532 <sect2 xml:id="userland-rc"> 533 <title><filename class="directory">/etc/rc.d</filename> 534 Scripts</title> 535 536 <para revision="270676">The &man.rc.8; subsystem has been 537 updated to allow configuring services in <filename 538 class="directory">${LOCALBASE}/etc/rc.conf.d/</filename>. 539 If <literal>LOCALBASE</literal> is unset, it defaults to 540 <filename class="directory">/usr/local</filename>.</para> 541 542 <para revision="275299">The <filename>mrouted</filename> 543 &man.rc.8; script has been removed from the base system. An 544 equivalent script is available from the <filename 545 role="package">net/mrouted</filename> port.</para> 546 547 <para revision="279463" contrib="sponsor" 548 sponsor="&sandvine;">A new &man.rc.8; script, 549 <filename>iovctl</filename>, has been added, which allows 550 automatically starting the &man.iovctl.8; utility at 551 boot.</para> 552 </sect2> 553 554 <sect2 xml:id="userland-periodic"> 555 <title><filename class="directory">/etc/periodic</filename> 556 Scripts</title> 557 558 <para revision="271321">The daily &man.periodic.8; script 559 <filename>110.clean-tmps</filename> has been updated to avoid 560 crossing filesystem mount boundaries when cleaning files in 561 <filename class="directory">/tmp</filename>.</para> 562 </sect2> 563 564 <sect2 xml:id="userland-libraries"> 565 <title>Runtime Libraries and API</title> 566 567 <para revision="265995">The Blowfish &man.crypt.3; default 568 format has been changed to 569 <literal>$2b$</literal>.</para> 570 571 <para revision="268461">The &man.readline.3; library is now 572 statically linked in software within the base system, and the 573 shared library is no longer installed, allowing the Ports 574 Collection to use a modern version of the library.</para> 575 576 <para revision="272273">The &man.strptime.3; library has been 577 updated to add support for <acronym>POSIX</acronym>-2001 578 features <literal>%U</literal> and 579 <literal>%W</literal>.</para> 580 581 <para revision="272842,272848" contrib="sponsor" 582 sponsor="&ff;">The &man.dl.iterate.phdr.3; library has been 583 changed to always return the path name of the 584 <acronym>ELF</acronym> object in the 585 <literal>dlpi_name</literal> structure member.</para> 586 587 <para revision="273562" contrib="sponsor" 588 sponsor="&juniper;">The &man.libxo.3; library has been 589 imported to the base system.</para> 590 591 <para revision="273806" contrib="sponsor" sponsor="&chelsio;">A 592 userland library for Chelsio Terminator 5 based iWARP cards 593 has been added, allowing userland <acronym>RDMA</acronym> 594 applications to work over compatible 595 <acronym>NIC</acronym>s.</para> 596 597 <para revision="274987">The &man.gpio.3; library has been added, 598 providing a wrapper around the &man.gpio.4; kernel 599 interface.</para> 600 601 <para revision="277610">The <literal>futimens()</literal> and 602 <literal>utimensat()</literal> system calls have been 603 added. See &man.utimensat.2; for more information.</para> 604 605 <para revision="278934">The &man.elf.3; compile-time dependency 606 has been removed from <filename>dtri.o</filename>, which 607 allows adding <application>DTrace</application> probes to 608 userland applications and libraries without also linking 609 against &man.elf.3;.</para> 610 611 <para revision="279186">The &man.setmode.3; function has been 612 updated to consistently set <literal>errno</literal> on 613 failure.</para> 614 615 <para revision="279663">The &man.qsort.3; functions have been 616 updated to be able to handle 32-bit aligned data on 64-bit 617 platforms, also providing a significant improvement in 32-bit 618 workloads.</para> 619 620 <para revision="281130">Several standard include headers have 621 been updated to use of <application>gcc</application> 622 attributes, such as <literal>__result_use_check()</literal>, 623 <literal>__alloc_size()</literal>, and 624 <literal>__nonnull()</literal>.</para> 625 626 <para revision="281845">Support for file verification in 627 <acronym>MAC</acronym> has been added.</para> 628 629 <para revision="282973" contrib="sponsor" sponsor="&ff;">The 630 <literal>libgomp</literal> library is now only built when 631 building <acronym>GCC</acronym> from the base system. An 632 up-to-date version is available in the Ports Collection as 633 <filename 634 role="package">devel/libiomp5-devel</filename>.</para> 635 636 <para revision="282988">The <filename>stdlib.h</filename> and 637 <filename>malloc.h</filename> headers have been updated to 638 make use of the <application>gcc</application> 639 <literal>alloc_align()</literal> attribute.</para> 640 641 <para revision="284483" contrib="sponsor" 642 sponsor="&scaleengine;">The Blowfish &man.crypt.3; library 643 has been updated to support $2y$ hashes.</para> 644 </sect2> 645 646 <sect2 xml:id="userland-abi"> 647 <title>ABI Compatibility</title> 648 649 <para revision="271982">The &linux; compatibility version has 650 been updated to <literal>2.6.18</literal>. The 651 <literal>compat.linux.osrelease</literal> &man.sysctl.8; is 652 evaluated when building the <filename 653 role="package">emulators/linux-c6</filename> and related 654 ports.</para> 655 </sect2> 656 </sect1> 657 658 <sect1 xml:id="kernel"> 659 <title>Kernel</title> 660 661 <para>This section covers changes to kernel configurations, system 662 tuning, and system control parameters that are not otherwise 663 categorized.</para> 664 665 <sect2 xml:id="kernel-bugfix"> 666 <title>Kernel Bug Fixes</title> 667 668 <para revision="265876">A kernel bug that inhibited proper 669 functionality of the <literal>dev.cpu.0.freq</literal> 670 &man.sysctl.8; on &intel; processors with Turbo 671 Boost ™ enabled has been fixed.</para> 672 673 <para revision="271697" arch="powerpc">Support for 674 &man.dtrace.1; stack tracing has been fixed for 675 &os;/&arch.powerpc;, using the <literal>trapexit()</literal> 676 and <literal>asttrapexit()</literal> functions instead of 677 checking within addressed kernel space.</para> 678 679 <para revision="272089">A bug in &man.ipfw.4; that could 680 potentially lead to a kernel panic when using &man.dummynet.4; 681 at layer 2 has been fixed.</para> 682 683 <para revision="280930" contrib="sponsor" sponsor="&mitail;">The 684 kernel <acronym>RPC</acronym> has been updated to include 685 several enhancements:</para> 686 687 <itemizedlist> 688 <listitem> 689 <para>The 45 MiB limit on requests queued for 690 &man.nfsd.8; threads has been removed.</para> 691 </listitem> 692 693 <listitem> 694 <para>Avoids unnecessary throttling by not deferring 695 accounting for completed requests.</para> 696 </listitem> 697 698 <listitem> 699 <para>Fixes an integer overflow and signedness bugs.</para> 700 </listitem> 701 </itemizedlist> 702 703 <para revision="281261" arch="powerpc">Support for 704 &man.dtrace.1; has been added for the 705 Book-E ™.</para> 706 </sect2> 707 708 <sect2 xml:id="kernel-config"> 709 <title>Kernel Configuration</title> 710 711 <para revision="266531">The <literal>IMAGACT_BINMISC</literal> 712 kernel configuration option has been enabled by default, 713 which enables application execution through emulators, such 714 as <application>Qemu</application>.</para> 715 716 <para revision="268045">The <literal>VT</literal> kernel 717 configuration file has been removed, and the &man.vt.4; 718 driver is included in the <literal>GENERIC</literal> kernel. 719 To enable &man.vt.4;, enter <literal>set kern.vty=vt</literal> 720 at the &man.loader.8; prompt during boot, or add 721 <literal>kern.vty=vt</literal> to &man.loader.conf.5; and 722 reboot the system.</para> 723 724 <para revision="277904">The &man.config.8; utility has been 725 updated to allow using a non-standard <filename 726 class="directory">src/</filename> tree, specified as an 727 argument to the <literal>-s</literal> flag.</para> 728 729 <para revision="277990" arch="powerpc64">The 730 &os;/&arch.powerpc64; kernel now builds as 731 a position-independent executable, allowing the kernel to be 732 loaded into and run from any physical or virtual 733 address.</para> 734 735 <important> 736 <para>This change requires an update to &man.loader.8;. 737 The userland and kernel must be updated before rebooting the 738 system.</para> 739 </important> 740 741 <para revision="279189" contrib="sponsor" sponsor="&ff;" 742 arch="powerpc">Kernel support for Vector-Scalar eXtension 743 (<acronym>VSX</acronym>) found on POWER7 and POWER8 hardware 744 has been added.</para> 745 746 <para revision="279252" contrib="sponsor" sponsor="&ff;" 747 arch="powerpc">The &man.pmap.9; implementation for 64-bit 748 &powerpc; processors has been overhaulded to improve 749 concurrency.</para> 750 751 <para revision="283959" contrib="sponsor" 752 sponsor="&limelight;">A new kernel configuration option, 753 <literal>EM_MULTIQUEUE</literal>, has been added which enables 754 multi-queue support in the &man.em.4; driver.</para> 755 756 <note> 757 <para>Multi-queue support in the &man.em.4; driver is not 758 officially supported by &intel;.</para> 759 </note> 760 </sect2> 761 762 <sect2 xml:id="kernel-sysctl"> 763 <title>System Tuning and Controls</title> 764 765 <para revision="275140" contrib="sponsor" sponsor="&ff;">The 766 &man.hwpmc.4; default and maximum callchain depths have been 767 increased. The default has been increased from 16 to 32, and 768 the maximum increased from 32 to 128.</para> 769 770 <para revision="279361">The <literal>kern.osrelease</literal> 771 and <literal>kern.osreldate</literal> are now configurable 772 &man.jail.8; parameters.</para> 773 774 <para revision="280308,280949" contrib="sponsor" 775 sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has 776 been changed to update timestamps for read/write operations 777 using seconds precision. A new &man.sysctl.8;, 778 <literal>vfs.devfs.dotimes</literal> has been added, which 779 when set to a non-zero value, enables default precision 780 timestamps for these operations.</para> 781 782 <para revision="282213" contrib="sponsor" sponsor="&ff;">A new 783 &man.sysctl.8;, <literal>kern.racct.enable</literal>, has been 784 added, which when set to a non-zero value allows using 785 &man.rctl.8; with the <literal>GENERIC</literal> kernel. 786 A new kernel configuration option, 787 <literal>RACCT_DISABLED</literal> has also been added.</para> 788 789 <para revision="282901" contrib="sponsor" sponsor="&ff;">The 790 <literal>GENERIC</literal> kernel configuration now includes 791 <literal>RACCT</literal> and <literal>RCTL</literal> by 792 default.</para> 793 794 <note> 795 <para>To enable <literal>RACCT</literal> and 796 <literal>RCTL</literal> on a system using the 797 <literal>GENERIC</literal> kernel configuration, add 798 <literal>kern.racct.enable=1</literal> to 799 &man.loader.conf.5;, and reboot the system.</para> 800 </note> 801 802 <para revision="283136" contrib="sponsor" 803 sponsor="&limelight;">A new &man.sysctl.8;, 804 <literal>net.inet.tcp.hostcache.purgenow</literal>, has 805 been added, which when set to <literal>1</literal> during 806 runtime will flush all 807 <literal>net.inet.tcp.hostcache</literal> entries.</para> 808 </sect2> 809 </sect1> 810 811 <sect1 xml:id="drivers"> 812 <title>Devices and Drivers</title> 813 814 <para>This section covers changes and additions to devices and 815 device drivers since &release.prev;.</para> 816 817 <sect2 xml:id="drivers-device"> 818 <title>Device Drivers</title> 819 820 <para revision="260903">Support for GPS ports has been added to 821 &man.uhso.4;.</para> 822 823 <para revision="265132">The &man.full.4; device has been added, 824 and the <literal>lindev(4)</literal> device has been removed. 825 Prior to this change, <literal>lindev(4)</literal> provided 826 only the <filename>/dev/full</filename> character device, 827 returning <literal>ENOSPC</literal> on write attempts. As 828 this device is not specific to &linux;, a native &os; version 829 has been added.</para> 830 831 <para revision="271705">Hardware context support has been 832 added to the <literal>drm/i915</literal> driver, adding 833 support for <application>Mesa</application> 9.2 and 834 later.</para> 835 836 <para revision="273178">The &man.vt.4; driver has been updated, 837 replacing the bitmapped <literal>kern.vt.spclkeys</literal> 838 &man.sysctl.8; with individual 839 <literal>kern.vt.kbd_*</literal> variants.</para> 840 841 <para revision="273598">The &man.hpet.4; driver has been updated 842 to create a 843 <filename>/dev/hpet<replaceable>N</replaceable></filename> 844 device, providing access to <acronym>HPET</acronym> from 845 userspace.</para> 846 847 <para revision="280183">The <literal>drm</literal> code has 848 been updated to match &linux; version 3.8.13.</para> 849 850 <para revision="282783" arch="powerpc">Support for the Freescale 851 <acronym>PCI</acronym> Root Complex device has been 852 added.</para> 853 </sect2> 854 855 <sect2 xml:id="drivers-storage"> 856 <title>Storage Drivers</title> 857 858 <para revision="265236" contrib="sponsor" 859 sponsor="&lsi;, &spectralogic;" sponsorurl="">The &man.mpr.4; 860 device has been added, providing support for LSI Fusion-MPT 861 3 12Gb SCSI/SATA controllers.</para> 862 863 <para revision="265555" contrib="sponsor" 864 sponsor="&lsi;">The &man.mrsas.4; driver has been added, 865 providing support for LSI MegaRAID SAS controllers. The 866 &man.mfi.4; driver will attach to the controller, by default. 867 To enable &man.mrsas.4; add 868 <literal>hw.mfi.mrsas_enable=1</literal> to 869 <filename>/boot/loader.conf</filename>, which turns off 870 &man.mfi.4; device probing.</para> 871 872 <note> 873 <para>At this time, the &man.mfiutil.8; utility and the &os; 874 version of <application>MegaCLI</application> and 875 <application>StorCli</application> do not work with 876 &man.mrsas.4;.</para> 877 </note> 878 879 <para revision="275461" contrib="sponsor" sponsor="&ix;">The 880 &man.ctl.4; subsystem has been updated, increasing the ports 881 limit from <literal>128</literal> to <literal>256</literal>, 882 and <acronym>LUN</acronym> limit from <literal>256</literal> 883 to <literal>1024</literal>.</para> 884 885 <para revision="276526">The <literal>asr(4)</literal> driver has 886 been removed, and is no longer supported.</para> 887 888 <para revision="281387">The &man.hptnr.4; driver has been 889 updated to version 1.1.1.</para> 890 </sect2> 891 892 <sect2 xml:id="drivers-network"> 893 <title>Network Drivers</title> 894 895 <para revision="258830">Support for Broadcom chipsets BCM57764, 896 BCM57767, BCM57782, BCM57786 and BCM57787 has been added to 897 &man.bge.4;.</para> 898 899 <para revision="260448">Support for the &intel; Centrino™ 900 Wireless-N 135 chipset has been added.</para> 901 902 <para revision="260552">Firmware for &intel; Centrino™ 903 Wireless-N 105 devices has been added to the base 904 system.</para> 905 906 <para revision="261975">The deprecated nve(4) driver has been 907 removed. Users of NVIDIA nForce MCP network adapters are 908 advised to use the &man.nfe.4; driver instead, which has been 909 the default driver for this hardware since 910 &os; 7.0.</para> 911 912 <para revision="264601" contrib="sponsor" 913 sponsor="&darpa_afrl;">The <literal>if_nf10bmac(4)</literal> 914 device has been added, providing support for NetFPGA-10G 915 Embedded CPU Ethernet Core.</para> 916 917 <note> 918 <para>The <literal>if_nf10bmac(4)</literal> driver operates on 919 the FPGA, and is not suited for the PCI host 920 interface.</para> 921 </note> 922 923 <para revision="265348" contrib="sponsor" 924 sponsor="&netgate;">The &man.ath.hal.4; driver has been 925 updated to support the Atheros AR1111 chipset.</para> 926 927 <para revision="266770">Support for the &intel; Centrino™ 928 Wireless-N 105 chipset has been added.</para> 929 930 <para revision="266757" contrib="sponsor" 931 sponsor="&chelsio;">Support for the &man.cxgbe.4; Terminator 932 5 (T5) 10G/40G cards has been added to &man.netmap.4;.</para> 933 934 <para revision="272730">The &man.alc.4; driver has been updated 935 to support AR816x and AR817x ethernet controllers.</para> 936 937 <para revision="273331">The &man.vxlan.4; driver has been added, 938 which creates a virtual Layer 2 (Ethernet) network overlaid in 939 a Layer 3 (IP/UDP) network. The &man.vxlan.4; driver is 940 analogous to &man.vlan.4;, but is designed to be better suited 941 for large, multiple-tenant datacenter environments.</para> 942 943 <para revision="274246" contrib="sponsor" sponsor="&yandex;">The 944 &man.gre.4; driver has been significantly overhauled, and has 945 been split into two separate modules, &man.gre.4; and 946 &man.me.4;.</para> 947 948 <para revision="283766" contrib="sponsor" 949 sponsor="&limelight;">The &man.em.4; driver has been updated 950 with improved transmission queue hang detection.</para> 951 </sect2> 952 </sect1> 953 954 <sect1 xml:id="hardware"> 955 <title>Hardware Support</title> 956 957 <para>This section covers general hardware support for physical 958 machines, hypervisors, and virtualization environments, as well 959 as hardware changes and updates that do not otherwise fit in 960 other sections of this document.</para> 961 962 <sect2 xml:id="hardware-support"> 963 <title>Hardware Support</title> 964 965 <para revision="268303">The &man.asmc.4; driver has been 966 updated to support the &apple; MacMini 3,1.</para> 967 968 <para revision="268351">Support for &os;/ia64 has been dropped 969 as of &os; 11.</para> 970 971 <para revision="274386">An issue that could cause a system to 972 hang when entering <acronym>ACPI</acronym> 973 <literal>S3</literal> state (suspend to 974 <acronym>RAM</acronym>) has been corrected in the &man.acpi.4; 975 and &man.pci.4; drivers.</para> 976 977 <para revision="274733" arch="powerpc">The power management unit 978 subsystem has been updated to support power button events on 979 certain &arch.powerpc; hardware, such as aluminum 980 PowerBook ®.</para> 981 982 <para revision="275171,275190" arch="powerpc">The &man.hwpmc.4; 983 driver has been updated to correct performance counter 984 sampling on G4 (MPC74xxx) and G5 class processors.</para> 985 986 <para revision="281713" arch="powerpc">The &man.hwpmc.4; 987 driver has been updated to support the Freescale e500 988 core.</para> 989 990 <para revision="275732" contrib="sponsor" 991 sponsor="&ff;,&netgate;">The 992 <application>OpenCrypto</application> framework has been 993 updated to include <literal>AES-ICM</literal> and 994 <literal>AES-GCM</literal> modes, both of which have also been 995 added to the &man.aesni.4; driver.</para> 996 997 <para revision="283766">The &man.ig4.4; driver has been added, 998 providing support for the fourth generation &intel; 999 <acronym>I2C</acronym> SMBus.</para> 1000 1001 <para>The &man.uart.4; driver has been updated to support 1002 <acronym>AMT</acronym> devices on newer systems.</para> 1003 </sect2> 1004 1005 <sect2 xml:id="hardware-virtualization"> 1006 <title>Virtualization Support</title> 1007 1008 <para revision="260410">Support for the <quote>Virtual Interrupt 1009 Delivery</quote> feature of &intel; VT-x is enabled if 1010 supported by the CPU. This feature can be disabled by running 1011 <literal>sysctl hw.vmm.vmx.use_apic_vid=0</literal>. 1012 Additionally, to persist this setting across reboots, add 1013 <literal>hw.vmm.vmx.use_apic_vid=0</literal> to 1014 <filename>/etc/sysctl.conf</filename>.</para> 1015 1016 <para revision="260532">Support for <quote>Posted Interrupt 1017 Processing</quote> is enabled if supported by the CPU. This 1018 feature can be disabled by running <literal>sysctl 1019 hw.vmm.vmx.use_apic_pir=0</literal>. Additionally, to 1020 persist this setting across reboots, add 1021 <literal>hw.vmm.vmx.use_apic_pir=0</literal> to 1022 <filename>/etc/sysctl.conf</filename>.</para> 1023 1024 <para revision="260582">Unmapped IO support has been added to 1025 &man.virtio_blk.4;.</para> 1026 1027 <para revision="260583">Unmapped IO support has been added to 1028 &man.virtio_scsi.4;.</para> 1029 1030 <para revision="260847">The &man.virtio_random.4; driver has 1031 been added to harvest entropy from the host system.</para> 1032 1033 <para revision="261504">&os;/&arch.i386; guests can be run under 1034 bhyve.</para> 1035 1036 <para revision="267536" contrib="sponsor" 1037 sponsor="&citrix.rd;">Support for running a &os;/&arch.amd64; 1038 <application>Xen</application> guest instance as 1039 <acronym>PVH</acronym> guest has been added. 1040 <acronym>PVH</acronym> mode, short for <quote>Para-Virtualized 1041 Hardware</quote>, uses para-virtualized drivers for boot and 1042 I/O, and uses hardware virtualization extensions for all other 1043 tasks, without the need for emulation.</para> 1044 1045 <para revision="273515">The &man.virtio.console.4; driver has 1046 been added, which provides an interface to VirtIO console 1047 devices through a &man.tty.4; device.</para> 1048 1049 <para revision="279957">The &man.bhyve.8; hypervisor has been 1050 updated to support <literal>DSM TRIM</literal> commands for 1051 virtual <acronym>AHCI</acronym> disks.</para> 1052 1053 <para revision="281439" arch="arm">Support for the 1054 <application>QEMU</application> <literal>virt</literal> system 1055 has been added.</para> 1056 1057 <para revision="282212" contrib="sponsor" sponsor="&msostc;">The 1058 Hyper-V™ drivers have been updated with several 1059 enhancements:</para> 1060 1061 <itemizedlist> 1062 <listitem> 1063 <para>The &man.hv.vmbus.4; driver now has multi-channel 1064 support.</para> 1065 </listitem> 1066 1067 <listitem> 1068 <para>The &man.hv.storvsc.4; driver now has scatter/gather 1069 support, in addition to performance improvements.</para> 1070 </listitem> 1071 1072 <listitem> 1073 <para>The &man.hv.kvp.4; driver has received several bug 1074 fixes.</para> 1075 </listitem> 1076 </itemizedlist> 1077 1078 <para revision="282274">Support for &man.xen.4; para-virtualized 1079 <literal>domU</literal> kernels has been removed.</para> 1080 1081 <para revision="284746" contrib="sponsor" sponsor="&msostc;">The 1082 &man.hv.netvsc.4; driver has been updated to support checksum 1083 offloading and <acronym>TSO</acronym>.</para> 1084 </sect2> 1085 1086 <sect2 xml:id="hardware-arm"> 1087 <title>ARM Support</title> 1088 1089 <para revision="260921">The &man.nand.4; device is enabled for 1090 ARM devices by default.</para> 1091 1092 <para revision="273264" arch="armv6">An issue that could cause 1093 instability when detecting <acronym>SD</acronym> cards on the 1094 Raspberry Pi <acronym>SOC</acronym> has been fixed.</para> 1095 1096 <para revision="275963">The <literal>bcm2835_cpufreq</literal> 1097 driver has been added, which supports <acronym>CPU</acronym> 1098 frequency and voltage control on the Raspberry Pi 1099 <acronym>SOC</acronym>.</para> 1100 1101 <para revision="280259" contrib="sponsor" sponsor="&ff;">Initial 1102 support for the ARM AArch64 architecture has been 1103 added.</para> 1104 1105 <para revision="282779" arch="arm">Kernel support for Thumb-2 1106 userland has been added.</para> 1107 1108 <para revision="282827">Support for the hardware power button 1109 on the BeagleBone Black system has been added.</para> 1110 1111 <para revision="284273" contrib="sponsor" 1112 sponsor="&ff;">Initial 1113 <acronym>ACPI</acronym> support has been added for 1114 &os;/&arch.arm64;.</para> 1115 </sect2> 1116 </sect1> 1117 1118 <sect1 xml:id="storage"> 1119 <title>Storage</title> 1120 1121 <para>This section covers changes and additions to file systems 1122 and other storage subsystems, both local and networked.</para> 1123 1124 <sect2 xml:id="storage-general"> 1125 <title>General Storage</title> 1126 1127 <para revision="278037" contrib="sponsor" sponsor="&ix;">The 1128 &man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten, 1129 replacing <acronym>iSCSI</acronym>-specific mapping mechanisms 1130 with a new mechanism that works for any port.</para> 1131 1132 <para revision="278354" contrib="sponsor" sponsor="&ix;">The 1133 &man.ctld.8; utility has been updated to allow controlling 1134 non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para> 1135 1136 <para revision="275681" contrib="sponsor" sponsor="&ff;">The 1137 &man.autofs.5; subsystem has been updated to include a new 1138 &man.auto.master.5; map, <literal>-media</literal>, which 1139 allows automatically mounting removable media, such as 1140 <acronym>CD</acronym> drives or <acronym>USB</acronym> flash 1141 drives.</para> 1142 1143 <para revision="279955" contrib="sponsor" sponsor="&ff;">The 1144 &man.autofs.5; subsystem has been updated to include a new 1145 &man.auto.master.5; map, <literal>-noauto</literal>, which 1146 handles &man.fstab.5; entries set to 1147 <literal>noauto</literal>.</para> 1148 </sect2> 1149 1150 <sect2 xml:id="storage-net"> 1151 <title>Networked Storage</title> 1152 1153 <para revision="270096" contrib="sponsor" sponsor="&ff;">The new 1154 filesystem automount facility, &man.autofs.5;, has been added. 1155 The new &man.autofs.5; facility is similar to that found in 1156 other &unix;-like operating systems, such as OS X™ 1157 and Solaris™. The &man.autofs.5; facility uses 1158 a &sun;-compatible &man.auto.master.5; configuration file, and 1159 is administered with the &man.automount.8; userland utility, 1160 and the &man.automountd.8; and &man.autounmountd.8; 1161 daemons.</para> 1162 </sect2> 1163 1164 <sect2 xml:id="storage-zfs"> 1165 <title>ZFS</title> 1166 1167 <para revision="275748">The <literal>arc_meta_limit</literal> 1168 statistics are now visible through the 1169 <literal>kstat</literal> &man.sysctl.8;. As a result of this 1170 change, the <literal>vfs.zfs.arc_meta_used</literal> 1171 &man.sysctl.8; has been removed, and replaced with the 1172 <literal>kstat.zfs.misc.arcstats.arc_meta_used</literal> 1173 &man.sysctl.8;.</para> 1174 </sect2> 1175 1176 <sect2 xml:id="storage-geom"> 1177 <title>&man.geom.4;</title> 1178 1179 <para revision="267359">Support for the 1180 <literal>disklabel64</literal> partitioning scheme has been 1181 added to &man.gpart.8;.</para> 1182 </sect2> 1183 </sect1> 1184 1185 <sect1 xml:id="boot"> 1186 <title>Boot Loader Changes</title> 1187 1188 <para>This section covers the boot loader, boot menu, and other 1189 boot-related changes.</para> 1190 1191 <sect2 xml:id="boot-loader"> 1192 <title>Boot Loader Changes</title> 1193 1194 <para revision="274085">The &man.vt.4; driver has been made the 1195 default system console driver. The &man.syscons.4; driver is 1196 still available, and can be enabled by adding 1197 <literal>kern.vty=sc</literal> in &man.loader.conf.5;. 1198 Alternatively, &man.syscons.4; can be enabled at boot time by 1199 entering <literal>set kern.vty=sc</literal> at the 1200 &man.loader.8; prompt.</para> 1201 1202 <para revision="281616">The boot loader has been updated to 1203 support entering the <acronym>GELI</acronym> passphrase before 1204 loading the kernel. To enable this behavior, add 1205 <literal>geom_eli_passphrase_prompt="YES"</literal> to 1206 &man.loader.conf.5;.</para> 1207 1208 <para revision="258431" contrib="sponsor" sponsor="&ff;">The 1209 memory test run at boot time on &os;/&arch.amd64; platforms 1210 has been disabled by default.</para> 1211 </sect2> 1212 1213 <sect2 xml:id="boot-menu"> 1214 <title>Boot Menu Changes</title> 1215 1216 <para> </para> 1217 </sect2> 1218 </sect1> 1219 1220 <sect1 xml:id="network"> 1221 <title>Networking</title> 1222 1223 <para>This section describes changes that affect networking in 1224 &os;.</para> 1225 1226 <sect2 xml:id="network-protocols"> 1227 <title>Network Procols</title> 1228 1229 <para revision="263140">Support for the IPX network transport 1230 protocol has been removed, and will not be supported in 1231 &os; 11 and later releases.</para> 1232 1233 <para revision="272720" contrib="sponsor" 1234 sponsor="&limelight;">Support for <acronym>PLPMTUD</acronym> 1235 blackhole detection (<acronym>RFC</acronym> 4821) has been 1236 added to the &man.tcp.4; stack, disabled by default. New 1237 control tunables have been added:</para> 1238 1239 <informaltable frame="none" pgwide="0"> 1240 <tgroup cols="2"> 1241 <colspec colwidth="1*"/> 1242 <colspec colwidth="1*"/> 1243 <thead> 1244 <row> 1245 <entry>Tunable</entry> 1246 <entry>Description</entry> 1247 </row> 1248 </thead> 1249 1250 <tbody> 1251 <row> 1252 <entry><literal>net.inet.tcp.pmtud_blackhole_detection</literal></entry> 1253 <entry>Enables or disables <acronym>PLPMTUD</acronym> 1254 blackhole detection</entry> 1255 </row> 1256 1257 <row> 1258 <entry><literal>net.inet.tcp.pmtud_blackhole_mss</literal></entry> 1259 <entry><acronym>MSS</acronym> to try for IPv4</entry> 1260 </row> 1261 1262 <row> 1263 <entry><literal>net.inet.tcp.v6pmtud_blackhole_mss</literal></entry> 1264 <entry><acronym>MSS to try for IPv6</acronym></entry> 1265 </row> 1266 </tbody> 1267 </tgroup> 1268 </informaltable> 1269 1270 <para>New monitoring &man.sysctl.8;s haven been added:</para> 1271 1272 <informaltable frame="none" pgwide="0"> 1273 <tgroup cols="2"> 1274 <colspec colwidth="1*"/> 1275 <colspec colwidth="1*"/> 1276 <thead> 1277 <row> 1278 <entry>Tunable</entry> 1279 <entry>Description</entry> 1280 </row> 1281 </thead> 1282 1283 <tbody> 1284 <row> 1285 <entry><literal>net.inet.tcp.pmtud_blackhole_activated</literal></entry> 1286 <entry>Number of times the code was activated to attempt 1287 downshifting the <acronym>MSS</acronym></entry> 1288 </row> 1289 1290 <row> 1291 <entry><literal>net.inet.tcp.pmtud_blackhole_min_activated</literal></entry> 1292 <entry>Number of times the blackhole 1293 <acronym>MSS</acronym> was used in an attempt to 1294 downshift</entry> 1295 </row> 1296 1297 <row> 1298 <entry><literal>net.inet.tcp.pmtud_blackhole_failed</literal></entry> 1299 <entry>Number of times that the blackhole failed to 1300 connect after downshifting the 1301 <acronym>MSS</acronym></entry> 1302 </row> 1303 </tbody> 1304 </tgroup> 1305 </informaltable> 1306 1307 <para revision="280971" contrib="sponsor" 1308 sponsor="&netflix;, &nginx;">Support for <acronym>IP</acronym> 1309 identification for atomic datagrams (<acronym>RFC</acronym> 1310 6864) has been added. Support for this feature can be toggled 1311 with the <literal>net.inet.ip.rfc6864</literal> 1312 &man.sysctl.8;, which is enabled by default.</para> 1313 </sect2> 1314 </sect1> 1315 1316 <sect1 xml:id="ports"> 1317 <title>Ports Collection and Package Infrastructure</title> 1318 1319 <para>This section covers changes to the &os; Ports 1320 Collection, package infrastructure, and package maintenance and 1321 installation tools.</para> 1322 1323 <sect2 xml:id="ports-infrastructure"> 1324 <title>Infrastructure Changes</title> 1325 1326 <para> </para> 1327 </sect2> 1328 1329 <sect2 xml:id="ports-packages "> 1330 <title>Packaging Changes</title> 1331 1332 <para> </para> 1333 </sect2> 1334 </sect1> 1335 1336 <sect1 xml:id="doc"> 1337 <title>Documentation</title> 1338 1339 <para>This section covers changes to the &os; Documentation 1340 Project sources and toolchain.</para> 1341 1342 <sect2 xml:id="doc-sources"> 1343 <title>Documentation Source Changes</title> 1344 1345 <para> </para> 1346 </sect2> 1347 1348 <sect2 xml:id="doc-toolchain"> 1349 <title>Documentation Toolchain Changes</title> 1350 1351 <para> </para> 1352 </sect2> 1353 </sect1> 1354 1355 <sect1 xml:id="releng"> 1356 <title>Release Engineering and Integration</title> 1357 1358 <para>This section convers changes that are specific to the 1359 &os; Release Engineering processes.</para> 1360 1361 <sect2 xml:id="releng-changes"> 1362 <title>Integration Changes</title> 1363 1364 <para revision="277458" contrib="sponsor" sponsor="&ff;">The 1365 Release Engineering build tools have been updated to include 1366 support for producing virtual machine disk images for various 1367 cloud hosting providers.</para> 1368 1369 <para revision="278926">The Release Engineering build tools have 1370 been updated to use multi-threaded &man.xz.1;. By default, 1371 the number of &man.xz.1; threads is set to the number of cores 1372 available.</para> 1373 1374 <para revision="281802" contrib="sponsor" sponsor="&ff;">The 1375 Release Engineering build tools have been updated to include 1376 support for building &os;/&arch.arm64; virtual machine and 1377 memory stick installation images.</para> 1378 </sect2> 1379 </sect1> 1380</article> 1381