xref: /NextBSD/release/doc/en_US.ISO8859-1/relnotes/article.xml (revision 84d351007654069f9643c8e4b4802a7f5f08ee42)
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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>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
177      <para revision="285169">The <application>ntp</application> suite
178	has been updated to version 4.2.8p3.</para>
179    </sect2>
180
181    <sect2 xml:id="userland-programs">
182      <title>Userland Application Changes</title>
183
184      <para revision="258838" contrib="sponsor" sponsor="&ff;,
185	&google;" sponsorurl="">The &man.casperd.8; daemon has been
186	added, which provides access to functionality that is not
187	available in the <quote>capability mode</quote>
188	sandbox.</para>
189
190      <para revision="260594">When unable to load a kernel module with
191	&man.kldload.8;, a message informing to view output of
192	&man.dmesg.8; is now printed, opposed to the previous output
193	<quote>Exec format error.</quote>.</para>
194
195      <para revision="260910">Allow &man.pciconf.8; to identify PCI
196	devices that are attached to a driver to be identified by
197	their device name instead of just the selector.  Additionally,
198	an optional device argument to the <literal>-l</literal> flag
199	to restrict the output to only listing details about a single
200	device.</para>
201
202      <para revision="260913">A new flag, <quote>onifconsole</quote>
203	has been added to <filename>/etc/ttys</filename>.  This allows
204	the system to provide a login prompt via serial console if the
205	device is an active kernel console, otherwise it is equivalent
206	to <literal>off</literal>.</para>
207
208      <para revision="260926">Support for displaying VPD for PCI
209	devices via &man.pciconf.8; has been added.</para>
210
211      <para revision="261498">&man.ping.8; protects against malicious
212	network packets using the Capsicum framework to drop
213	privileges.</para>
214
215      <para revision="265229">The &man.ps.1; utility has been
216	updated to include the <literal>-J</literal> flag, used to
217	filter output by matching &man.jail.8; IDs and names.
218	Additionally, argument <literal>0</literal> can be used to
219	<literal>-J</literal> to only list processes running on the
220	host system.</para>
221
222      <para revision="265249">The &man.top.1; utility has been updated
223	to filter by &man.jail.8; ID or name, in followup to the
224	&man.ps.1; change in <literal>r265229</literal>.</para>
225
226      <para revision="266209">The &man.pmcstat.8; utility has been
227	updated to include a new flag, <literal>-l</literal>, which
228	ends event collection after the specified number of
229	seconds.</para>
230
231      <para revision="270745">The &man.ps.1; utility has been updated
232	to include a new keyword, <quote>tracer</quote>, which
233	displays the <acronym>PID</acronym> of the tracing
234	process.</para>
235
236      <para revision="271482">Support for adding empty partitions has
237	been added to the &man.mkimg.1; utility.</para>
238
239      <para revision="272166">The &man.primes.6; utility has been
240	updated to correctly enumerate prime numbers between
241	<literal>4295098369</literal> and
242	<literal>3825123056546413050</literal>, which prior to this
243	change, it would be possible for returned values to be
244	incorrectly identified as prime numbers.</para>
245
246      <para revision="272198">The &man.mkimg.1; utility has been
247	updated to include three options used to print information
248	about &man.mkimg.1; itself:</para>
249
250      <informaltable frame="none" pgwide="0">
251	<tgroup cols="2">
252	  <colspec colwidth="1*"/>
253	  <colspec colwidth="1*"/>
254	  <thead>
255	    <row>
256	      <entry>Option</entry>
257	      <entry>Output</entry>
258	    </row>
259	  </thead>
260
261	  <tbody>
262	    <row>
263	      <entry><literal>--version</literal></entry>
264	      <entry>The current version of the &man.mkimg.1;
265		utility</entry>
266	    </row>
267
268	    <row>
269	      <entry><literal>--formats</literal></entry>
270	      <entry>The disk image file formats supported by
271		&man.mkimg.1;</entry>
272	    </row>
273
274	    <row>
275	      <entry><literal>--schemes</literal></entry>
276	      <entry>The partition schemes supported by
277		&man.mkimg.1;</entry>
278	    </row>
279	  </tbody>
280	</tgroup>
281      </informaltable>
282
283      <para revision="272488">Userland &man.ctf.5; support in
284	&man.dtrace.1; has been added.  With this change,
285	&man.dtrace.1; is able to resolve type info for function and
286	<acronym>USDT</acronym> probe arguments, and function return
287	values.</para>
288
289      <para revision="274960">The &man.elfdump.1; utility has been
290	updated to support capability mode provided by
291	&man.capsicum.4;.</para>
292
293      <para revision="275680" contrib="sponsor" sponsor="&ff;">The
294	&man.fstyp.8; utility has been added, which is used to
295	determine the filesystem on a specified device.</para>
296
297      <para revision="276881">The <literal>libedit</literal> library
298	has been updated to support <acronym>UTF</acronym>-8, which
299	additionally provides unicode support to &man.sh.1;.</para>
300
301      <para revision="276893" contrib="sponsor" sponsor="&ff;">The
302	&man.mkimg.1; utility has been updated to support the
303	<acronym>MBR</acronym> <acronym>EFI</acronym> partition
304	type.</para>
305
306      <para revision="277166" arch="powerpc">The &man.ptrace.2; system
307	call has been updated include support for Altivec registers on
308	&os;/&arch.powerpc;.</para>
309
310      <para revision="278320">A new device control utility,
311	&man.devctl.8; has been added, which allows making
312	administrative changes to individual devices, such as
313	attaching and detaching drivers, and enabling and disabling
314	devices.  The &man.devctl.8; utility uses the new
315	&man.devctl.3; library.</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="279139">A new flag, <literal>-c</literal>, has
323	been added to the &man.mkimg.1; utility, which allows
324	specifying the capacity of the target disk image.</para>
325
326      <para revision="279315" contrib="sponsor" sponsor="&ff;">The
327	&man.uefisign.8; utility has been added.</para>
328
329      <para revision="279571" contrib="sponsor"
330	sponsor="&scaleengine;">The &man.freebsd-update.8; utility has
331	been updated to prevent fetching updated binary patches when
332	a previous upgrade has not been thoroughly completed.</para>
333
334      <para revision="280870">A regression in the &man.libarchive.3;
335	library that would prevent a directory from being included in
336	the archive when <literal>--one-file-system</literal> is used
337	has been fixed.</para>
338
339      <para revision="281311" contrib="sponsor" sponsor="&ff;">The
340	&man.ar.1; utility has been updated to set
341	<literal>ARCHIVE_EXTRACT_SECURE_SYMLINKS</literal> and
342	<literal>ARCHIVE_EXTRACT_SECURE_NODOTDOT</literal> to disallow
343	directory traversal when extracting an archive, similar to
344	&man.tar.1;.</para>
345
346      <para revision="281617">A race condition in &man.wc.1; that
347	would cause final results to be sent to &man.stderr.4; when
348	receiving the <literal>SIGINFO</literal> signal has been
349	fixed.</para>
350
351      <para revision="282208" contrib="sponsor"
352	sponsor="&multiplay;">The &man.chflags.1;, &man.chgrp.1;,
353	&man.chmod.1;, and &man.chown.8; utilities now affect symbolic
354	links when the <literal>-R</literal> flag is specified, as
355	documented in &man.symlink.7;.</para>
356
357      <para revision="282608">The &man.date.1; utility has been
358	updated to print the modification time of the file passed as
359	an argument to the <literal>-r</literal> flag, improving
360	compatibility with the <acronym>GNU</acronym> &man.date.1;
361	utility behavior.</para>
362
363      <para revision="283961">The &man.pw.8; utility has been updated
364	with a new flag, <literal>-R</literal>, that sets the root
365	directory within which the utility will operate.</para>
366
367      <para revision="284297" contrib="sponsor"
368	sponsor="&clusterhq;">The &man.lockstat.1; utility has been
369	updated with several improvements:</para>
370
371      <itemizedlist>
372	<listitem>
373	  <para>Spin locks are now reported as the amount of time
374	    spinning, instead of loop iterations.</para>
375	</listitem>
376
377	<listitem>
378	  <para>Reader locks are now recognized as adaptive that can
379	    spin on &os;.</para>
380	</listitem>
381
382	<listitem>
383	  <para>Lock aquisition events for successful reader try-lock
384	    events are now reported.</para>
385	</listitem>
386
387	<listitem>
388	  <para>Spin and block events are now reported before lock
389	    acquisition events.</para>
390	</listitem>
391      </itemizedlist>
392
393      <para revision="284589" contrib="sponsor"
394	sponsor="&scaleengine;">The &man.fstyp.8; utility has been
395	updated to be able to detect &man.zfs.8; and &man.geli.8;
396	filesystems.</para>
397
398      <para revision="284883">The &man.mkimg.1; utility has been
399	updated to include support for <literal>NTFS</literal>
400	filesystems in both <acronym>MBR</acronym> and
401	<acronym>GPT</acronym> partitioning schemes.</para>
402
403      <para revision="285253">The &man.quota.1; utility has been
404	updated to include support for <acronym>IPv6</acronym>.</para>
405
406      <para revision="285420">The &man.jexec.8; utility has been
407	updated to include a new flag, <literal>-l</literal>, which
408	ensures a clean environment in the target jail when used.
409	Additionally, &man.jexec.8; will run a shell within the target
410	jail when run no commands are specified.</para>
411
412      <para revision="285550">The &man.w.1; utility has been updated
413	to display the full IPv6 remote address of the host from which
414	a user is connected.</para>
415
416      <para revision="285685">The &man.jail.8; framework has been
417	updated to allow mounting &man.linprocfs.5; and
418	&man.linsysfs.5; within a jail.</para>
419
420      <para revision="285772" contrib="sponsor"
421	sponsor="&emcisilon;">The &man.patch.1; utility has been
422	updated to include a new option to the <literal>-V</literal>
423	flag, <literal>none</literal>, which disables backup file
424	creation when applying a patch.</para>
425
426      <para revision="286010" contrib="sponsor" sponsor="&ff;">The
427	&man.ar.1; utility now enables deterministic mode
428	(<literal>-D</literal>) by default.  This behavior can be
429	disabled by specifying the <literal>-U</literal> flag.</para>
430
431      <para revision="286289" contrib="sponsor"
432	sponsor="&scaleengine;">The &man.xargs.1; utility has been
433	updated to allow specifying <literal>0</literal> as an
434	argument to the <literal>-P</literal> (parallel mode) flag,
435	which allows creating as many concurrent processes as
436	possible.</para>
437
438      <para revision="286795">The &man.patch.1; utility has been
439	updated to remove the automatic checkout feature.</para>
440
441      <para revision="287473" contrib="sponsor" sponsor="&gandi;">A
442	new utility, &man.sesutil.8;, has been added, which is used
443	to manage &man.ses.4; devices.</para>
444
445      <para revision="287522">The &man.pciconf.8; utility has been
446	updated to use the PCI ID database from the <filename
447	  role="package">misc/pciids</filename> package, if present,
448	falling back to the PCI ID database in the &os; base
449	system.</para>
450
451      <para revision="287842" contrib="sponsor"
452	sponsor="&scaleengine;">The &man.ifconfig.8; utility has been
453	updated to always exit with an error code if an important
454	&man.ioctl.2; fails.</para>
455    </sect2>
456
457    <sect2 xml:id="userland-contrib">
458      <title>Contributed Software</title>
459
460      <para revision="260445">&man.byacc.1; has been updated to
461	version 20140101.</para>
462
463      <para revision="261320"><application>OpenSSH</application> has
464	been updated to 6.5p1.</para>
465
466      <para revision="261344"><application>mdocml</application> has
467	been updated to version 1.12.3.</para>
468
469      <para revision="275718">The <application>binutils</application>
470	suite of utilities has been updated to include upstream
471	patches that add new relocations for &arch.powerpc;
472	support.</para>
473
474      <para revision="276398" contrib="sponsor" sponsor="&ff;">The
475	<application>ELF Tool Chain</application> has been updated to
476	upstream revision r3136.</para>
477
478      <para revision="276551">The <application>texinfo</application>
479	utility and <literal>info</literal> pages were removed from
480	the base system.  The <filename
481	  role="package">print/texinfo</filename> port should be
482	installed on systems where <literal>info</literal> pages are
483	needed.</para>
484
485      <para revision="276796" contrib="sponsor" sponsor="&ff;">The ELF
486	object manipulation tools
487	<application>addr2line</application>,
488	<application>elfcopy (strip)</application>,
489	<application>nm</application>,
490	<application>readelf</application>,
491	<application>size</application>, and
492	<application>strings</application> were switched to the
493	versions from the ELF Tool Chain project.</para>
494
495      <para revision="276881">The <literal>libedit</literal> library
496	has been updated to include <acronym>UTF-8</acronym> support,
497	adding <acronym>UTF-8</acronym> support to the &man.sh.1;
498	shell.</para>
499
500      <para revision="278433">The &man.xz.1; utility has been updated
501	to support multi-threaded compression.</para>
502
503      <para revision="280932" contrib="sponsor" sponsor="&ff;">The
504	<application>elftoolchain</application> utilities have been
505	updated to version 3179.</para>
506
507      <para revision="281316">The &man.xz.1; utility has been updated
508	to version 5.2.1.</para>
509
510      <para revision="281373">The &man.nvi.1; utility has been updated
511	to version 2.1.3.</para>
512
513      <para revision="281806">The &man.wpa.supplicant.8; and
514	&man.hostapd.8; utilities have been updated to version
515	2.4.</para>
516
517      <para revision="282434" contrib="sponsor" sponsor="&ff;">The
518	&man.resolvconf.8; utility has been updated to version
519	3.7.0.</para>
520
521      <para revision="284254"><application>bmake</application> has
522	been updated to version 20150606.</para>
523
524      <para revision="285229"><application>sendmail</application> has
525	been updated to 8.15.2.  Starting with &os;&nbsp;11.0 and
526	sendmail 8.15, sendmail uses uncompressed IPv6 addresses by
527	default, i.e., they will not contain <quote>::</quote>.  For
528	example, instead of <quote>::1</quote>, it will be
529	<quote>0:0:0:0:0:0:0:1</quote>.  This permits a zero subnet to
530	have a more specific match, such as different map entries for
531	IPv6:0:0 versus IPv6:0.  This change requires that
532	configuration data (including maps, files, classes, custom
533	ruleset, etc.) must use the same format, so make certain such
534	configuration data is upgrading.  As a very simple check
535	search for patterns like 'IPv6:[0-9a-fA-F:]*::' and 'IPv6::'.
536	To return to the old behavior, set the m4 option
537	<literal>confUSE_COMPRESSED_IPV6_ADDRESSES</literal> or the cf
538	option <literal>UseCompressedIPv6Addresses</literal>.</para>
539
540      <para revision="285275">The &man.tcpdump.1; utility has been
541	updated to version 4.7.4.</para>
542
543      <para revision="285329"><application>OpenSSL</application> has
544	been updated to version 1.0.1p.</para>
545
546      <para revision="285642" contrib="sponsor" sponsor="&dell;">The
547	&man.ssh.1; utility has been updated to re-implement hostname
548	canonicalization before locating the host in
549	<filename>known_hosts</filename>.</para>
550
551      <para revision="285972">The &man.libarchive.3; library has been
552	updated to properly skip a sparse file entry in a &man.tar.1;
553	file, which would previously produce errors.</para>
554
555      <para revision="286503">The <application>apr</application>
556	library used by &man.svnlite.1; has been updated to version
557	1.5.2.</para>
558
559      <para revision="286505">The <application>serf</application>
560	library used by &man.svnlite.1; has been updated to version
561	1.3.8.</para>
562
563      <para revision="286505">The &man.svnlite.1; utility has been
564	updated to version 1.8.14.</para>
565
566      <para revision="286510">The <application>sqlite3</application>
567	library used by &man.svnlite.1; and &man.kerberos.8; has been
568	updated to version 3.8.11.1.</para>
569
570      <para revision="286750">Timezone data files have been updated to
571	version 2015f.</para>
572
573      <para revision="287168">The &man.acpi.4; subsystem has been
574	updated to version 20150818.</para>
575
576      <para revision="287917">The &man.unbound.8; utility has been
577	updated to version 1.5.4.</para>
578
579      <para revision="288090">&man.jemalloc.3; has been updated to
580	version 4.0.2.</para>
581
582      <para revision="288143">The &man.file.1; utility has been
583	updated to version 5.25.</para>
584
585      <para revision="288303">The &man.nc.1; utility has been updated
586	to the OpenBSD 5.8 version.</para>
587
588      <para revision="288943"><application>Clang</application> has
589	been updated to version 3.7.0.</para>
590
591      <para revision="288943"><application>LLVM</application> has
592	been updated to version 3.7.0.</para>
593
594      <para revision="288943"><application>LLDB</application> has
595	been updated to version 3.7.0.</para>
596
597      <para revision="288943"><application>libc++</application> has
598	been updated to version 3.7.0.</para>
599
600      <para revision="288943">The
601	<application>compiler_rt</application> utility has been
602	updated to version 3.7.0.</para>
603    </sect2>
604
605    <sect2 xml:id="userland-installer">
606      <title>Installation and Configuration Tools</title>
607
608      <para revision="271539">The &man.bsdinstall.8; partition editor
609	and &man.sade.8; utility have been updated to include native
610	<acronym>ZFS</acronym> support.</para>
611
612      <para revision="272274">The &os; installation utility,
613	&man.bsdinstall.8;, has been updated to set the
614	<literal>canmount</literal> &man.zfs.8; property to
615	<literal>off</literal> for the <filename
616	  class="directory">/var</filename> dataset, preventing the
617	contents of directories within <filename
618	  class="directory">/var</filename> from conflicting when
619	using multiple boot environments, such as that provided by
620	<filename role="package">sysutils/beadm</filename>.</para>
621
622      <para revision="274394">The &man.bsdconfig.8; utility has been
623	updated to skip the initial &man.tzsetup.8;
624	<acronym>UTC</acronym> versus wall-clock time prompt when run
625	in a virtual machine, determined when the
626	<literal>kern.vm_guest</literal> &man.sysctl.8; is set to
627	<literal>1</literal>.</para>
628
629      <para revision="275874">The &man.bsdinstall.8; utility has been
630	updated to use the new &man.dpv.3; library to display progress
631	when extracting the &os; distributions.</para>
632
633      <para revision="285557" contrib="sponsor"
634	sponsor="&scaleengine;">Support for detecting and implementing
635	aligning partitions on 1Mb boundaries has been added to
636	&man.bsdinstall.8;.</para>
637
638      <para revision="285679" contrib="sponsor"
639	sponsor="&scaleengine;">Support for detecting and implementing
640	a workaround for various laptops and motherboards that do not
641	boot properly from <acronym>GPT</acronym>-partitioned disks
642	has been added to &man.bsdinstall.8;.  Additionally, the
643	<literal>active</literal> flag will be set on the partition
644	when needed.</para>
645
646      <para revision="285679" contrib="sponsor"
647	sponsor="&scaleengine;">Support for selecting the partitioning
648	scheme when installing on the <acronym>UFS</acronym>
649	filesystem has been added to &man.bsdinstall.8;.</para>
650    </sect2>
651
652    <sect2 xml:id="userland-rc">
653      <title><filename class="directory">/etc/rc.d</filename>
654	Scripts</title>
655
656      <para revision="270676">The &man.rc.8; subsystem has been
657	updated to allow configuring services in <filename
658	  class="directory">&dollar;{LOCALBASE}/etc/rc.conf.d/</filename>.
659	If <literal>LOCALBASE</literal> is unset, it defaults to
660	<filename class="directory">/usr/local</filename>.</para>
661
662      <para revision="273955">A new &man.rc.8; script,
663	<filename>growfs</filename>, has been added, which will resize
664	the root filesystem on boot if <filename>/firstboot</filename>
665	exists.</para>
666
667      <para revision="275299">The <filename>mrouted</filename>
668	&man.rc.8; script has been removed from the base system.  An
669	equivalent script is available from the <filename
670	  role="package">net/mrouted</filename> port.</para>
671
672      <para revision="279463" contrib="sponsor"
673	sponsor="&sandvine;">A new &man.rc.8; script,
674	<filename>iovctl</filename>, has been added, which allows
675	automatically starting the &man.iovctl.8; utility at
676	boot.</para>
677
678      <para revision="287576" contrib="sponsor"
679	sponsor="&scaleengine;">The &man.service.8; utility has been
680	updated to honor entries within <filename
681	  class="directory">/etc/rc.conf.d/</filename>.</para>
682
683    </sect2>
684
685    <sect2 xml:id="userland-periodic">
686      <title><filename class="directory">/etc/periodic</filename>
687	Scripts</title>
688
689      <para revision="271321">The daily &man.periodic.8; script
690	<filename>110.clean-tmps</filename> has been updated to avoid
691	crossing filesystem mount boundaries when cleaning files in
692	<filename class="directory">/tmp</filename>.</para>
693
694      <para revision="277216" contrib="sponsor" sponsor="&ff;">A new
695	&man.periodic.8; script,
696	<filename>510.status-world-kernel</filename>, has been added,
697	which evaluates the running userland and kernel versions from
698	the &man.uname.1; <literal>-U</literal> and
699	<literal>-K</literal> arguments, and prints an error if the
700	system userland and kernel are not in sync.</para>
701    </sect2>
702
703    <sect2 xml:id="userland-libraries">
704      <title>Runtime Libraries and API</title>
705
706      <para revision="265995">The Blowfish &man.crypt.3; default
707	format has been changed to
708	<literal>&dollar;2b&dollar;</literal>.</para>
709
710      <para revision="268461">The &man.readline.3; library is now
711	statically linked in software within the base system, and the
712	shared library is no longer installed, allowing the Ports
713	Collection to use a modern version of the library.</para>
714
715      <para revision="272273">The &man.strptime.3; library has been
716	updated to add support for <acronym>POSIX</acronym>-2001
717	features <literal>%U</literal> and
718	<literal>%W</literal>.</para>
719
720      <para revision="272842,272848" contrib="sponsor"
721	sponsor="&ff;">The &man.dl.iterate.phdr.3; library has been
722	changed to always return the path name of the
723	<acronym>ELF</acronym> object in the
724	<literal>dlpi_name</literal> structure member.</para>
725
726      <para revision="273562" contrib="sponsor"
727	sponsor="&juniper;">The &man.libxo.3; library has been
728	imported to the base system.</para>
729
730      <para revision="273806" contrib="sponsor" sponsor="&chelsio;">A
731	userland library for Chelsio Terminator 5 based iWARP cards
732	has been added, allowing userland <acronym>RDMA</acronym>
733	applications to work over compatible
734	<acronym>NIC</acronym>s.</para>
735
736      <para revision="274987">The &man.gpio.3; library has been added,
737	providing a wrapper around the &man.gpio.4; kernel
738	interface.</para>
739
740      <para revision="275800" contrib="sponsor" sponsor="&ff;">The
741	&man.procctl.2; system call has been updated to include
742	a facility for non-&man.init.8; processes to be declared as
743	the reaper of child processes and their decendants.</para>
744
745      <para revision="277610">The <literal>futimens()</literal> and
746	<literal>utimensat()</literal> system calls have been
747	added.  See &man.utimensat.2; for more information.</para>
748
749      <para revision="278934">The &man.elf.3; compile-time dependency
750	has been removed from <filename>dtri.o</filename>, which
751	allows adding <application>DTrace</application> probes to
752	userland applications and libraries without also linking
753	against &man.elf.3;.</para>
754
755      <para revision="279186">The &man.setmode.3; function has been
756	updated to consistently set <literal>errno</literal> on
757	failure.</para>
758
759      <para revision="279663">The &man.qsort.3; functions have been
760	updated to be able to handle 32-bit aligned data on 64-bit
761	platforms, also providing a significant improvement in 32-bit
762	workloads.</para>
763
764      <para revision="281130">Several standard include headers have
765	been updated to use of <application>gcc</application>
766	attributes, such as <literal>__result_use_check()</literal>,
767	<literal>__alloc_size()</literal>, and
768	<literal>__nonnull()</literal>.</para>
769
770      <para revision="281845">Support for file verification in
771	<acronym>MAC</acronym> has been added.</para>
772
773      <para revision="282973" contrib="sponsor" sponsor="&ff;">The
774	<literal>libgomp</literal> library is now only built when
775	building <acronym>GCC</acronym> from the base system.  An
776	up-to-date version is available in the Ports Collection as
777	<filename
778	  role="package">devel/libiomp5-devel</filename>.</para>
779
780      <para revision="282988">The <filename>stdlib.h</filename> and
781	<filename>malloc.h</filename> headers have been updated to
782	make use of the <application>gcc</application>
783	<literal>alloc_align()</literal> attribute.</para>
784
785      <para revision="284483" contrib="sponsor"
786	sponsor="&scaleengine;">The Blowfish &man.crypt.3; library
787	has been updated to support &dollar;2y&dollar; hashes.</para>
788
789      <para revision="285277">The &man.execl.3; and &man.execlp.3;
790	library functions have been updated to use the
791	<literal>__sentinel</literal> <application>gcc</application>
792	attribute.</para>
793    </sect2>
794
795    <sect2 xml:id="userland-abi">
796      <title>ABI Compatibility</title>
797
798      <para revision="271982">The &linux; compatibility version has
799	been updated to <literal>2.6.18</literal>.  The
800	<literal>compat.linux.osrelease</literal> &man.sysctl.8; is
801	evaluated when building the <filename
802	  role="package">emulators/linux-c6</filename> and related
803	ports.</para>
804
805      <para revision="288669">The stack protector has been upgraded to
806	the "strong" level, elevating the protection against buffer
807	overflows.  While this significantly improves the security of
808	the system, extensive testing was done to ensure there are no
809	measurable side effects in performance or
810	functionality.</para>
811    </sect2>
812  </sect1>
813
814  <sect1 xml:id="kernel">
815    <title>Kernel</title>
816
817    <para>This section covers changes to kernel configurations, system
818      tuning, and system control parameters that are not otherwise
819      categorized.</para>
820
821    <sect2 xml:id="kernel-bugfix">
822      <title>Kernel Bug Fixes</title>
823
824      <para revision="265876">A kernel bug that inhibited proper
825	functionality of the <literal>dev.cpu.0.freq</literal>
826	&man.sysctl.8; on &intel; processors with Turbo
827	Boost&nbsp;&trade; enabled has been fixed.</para>
828
829      <para revision="271697" arch="powerpc">Support for
830	&man.dtrace.1; stack tracing has been fixed for
831	&os;/&arch.powerpc;, using the <literal>trapexit()</literal>
832	and <literal>asttrapexit()</literal> functions instead of
833	checking within addressed kernel space.</para>
834
835      <para revision="271917">A kernel panic triggered when destroying
836	a &man.vnet.9; &man.jail.8; configured with &man.gif.4; has
837	been fixed.</para>
838
839      <para revision="271918">A kernel panic triggered when destroying
840	a &man.vnet.9; &man.jail.8; configured with &man.gre.4; has
841	been fixed.</para>
842
843      <para revision="272089">A bug in &man.ipfw.4; that could
844	potentially lead to a kernel panic when using &man.dummynet.4;
845	at layer 2 has been fixed.</para>
846
847      <para revision="280930" contrib="sponsor" sponsor="&mitail;">The
848	kernel <acronym>RPC</acronym> has been updated to include
849	several enhancements:</para>
850
851      <itemizedlist>
852	<listitem>
853	  <para>The 45 MiB limit on requests queued for
854	    &man.nfsd.8; threads has been removed.</para>
855	</listitem>
856
857	<listitem>
858	  <para>Avoids unnecessary throttling by not deferring
859	    accounting for completed requests.</para>
860	</listitem>
861
862	<listitem>
863	  <para>Fixes an integer overflow and signedness bugs.</para>
864	</listitem>
865      </itemizedlist>
866
867      <para revision="281261" arch="powerpc">Support for
868	&man.dtrace.1; has been added for the
869	Book-E&nbsp;&trade;.</para>
870
871      <para revision="287886" contrib="sponsor"
872	sponsor="&multiplay;">The &man.kqueue.2; system call has been
873	updated to handle write events to files larger than 2
874	gigabytes.</para>
875    </sect2>
876
877    <sect2 xml:id="kernel-config">
878      <title>Kernel Configuration</title>
879
880      <para revision="266531">The <literal>IMAGACT_BINMISC</literal>
881	kernel configuration option has been enabled by default,
882	which enables application execution through emulators, such
883	as <application>Qemu</application>.</para>
884
885      <para revision="268045">The <literal>VT</literal> kernel
886	configuration file has been removed, and the &man.vt.4;
887	driver is included in the <literal>GENERIC</literal> kernel.
888	To enable &man.vt.4;, enter <literal>set kern.vty=vt</literal>
889	at the &man.loader.8; prompt during boot, or add
890	<literal>kern.vty=vt</literal> to &man.loader.conf.5; and
891	reboot the system.</para>
892
893      <para revision="277904">The &man.config.8; utility has been
894	updated to allow using a non-standard <filename
895	  class="directory">src/</filename> tree, specified as an
896	argument to the <literal>-s</literal> flag.</para>
897
898      <para revision="277990" arch="powerpc64">The
899	&os;/&arch.powerpc64; kernel now builds as
900	a position-independent executable, allowing the kernel to be
901	loaded into and run from any physical or virtual
902	address.</para>
903
904      <important>
905	<para>This change requires an update to &man.loader.8;.
906	  The userland and kernel must be updated before rebooting the
907	  system.</para>
908      </important>
909
910      <para revision="278338" arch="arm">A new module for creating
911	<filename>rpi.dtb</filename> has been added for the Raspberry
912	Pi.</para>
913
914      <para revision="278340" arch="arm">The
915	<filename>rpi.dtb</filename> module is now installed to
916	<filename class="directory">/boot/dtb/</filename> by
917	default for the Raspberry Pi system.</para>
918
919      <para revision="279189" contrib="sponsor" sponsor="&ff;"
920	arch="powerpc">Kernel support for Vector-Scalar eXtension
921	(<acronym>VSX</acronym>) found on POWER7 and POWER8 hardware
922	has been added.</para>
923
924      <para revision="279252" contrib="sponsor" sponsor="&ff;"
925	arch="powerpc">The &man.pmap.9; implementation for 64-bit
926	&powerpc; processors has been overhaulded to improve
927	concurrency.</para>
928
929      <para revision="279824" arch="arm">A new module for creating
930	the <filename>dtb</filename> module for AM335x systems has
931	been added.</para>
932
933      <para revision="281495" contrib="sponsor" sponsor="&ff;">The
934	<literal>PAE_TABLES</literal> kernel configuration option has
935	been added for &os;/&arch.i386;, which instructs &man.pmap.9;
936	to use <acronym>PAE</acronym> format for page tables while
937	maintaining a 32-bit physical address size elsewhere in the
938	kernel.  The use of this option can enhance application-level
939	security by enabling the creation of <quote>no execute</quote>
940	mappings on modern &arch.i386; processors.  Unlike the
941	<literal>PAE</literal> option, <literal>PAE_TABLES</literal>
942	preserves kernel binary interface (<acronym>KBI</acronym>)
943	compatibility with non-<literal>PAE</literal> kernels,
944	allowing non-<literal>PAE</literal> kernel modules and drivers
945	to work with a <literal>PAE_TABLES</literal>-enabled kernel.
946	Additionally, system limits are tuned for 4GB maximum
947	<acronym>RAM</acronym>, avoiding kernel virtual address space
948	(<acronym>KVA</acronym>) exhaustion.</para>
949
950      <para revision="282215">The <literal>SIFTR</literal> kernel
951	configuration has been added, allowing building &man.siftr.4;
952	statically into the kernel.</para>
953
954      <para revision="282731" arch="arm">The &arch.arm; boot loader,
955	<filename>ubldr</filename>, is now relocatable.  In addition,
956	<filename>ubldr.bin</filename> is now created during build
957	time, which is a stripped binary with an entry point of
958	<literal>0</literal>, providing the ability to specify the
959	load address by running <literal>go
960	  &dollar;{loadaddr}</literal> in
961	<literal>u-boot</literal>.</para>
962
963      <para revision="282921" contrib="sponsor" sponsor="&intelcorp;"
964	arch="amd64,i386">The &man.nvd.4; and &man.nvme.4; drivers are
965	now included in the <filename>GENERIC</filename> kernel
966	configuration by default.</para>
967
968      <para revision="283959" contrib="sponsor"
969	sponsor="&limelight;">A new kernel configuration option,
970	<literal>EM_MULTIQUEUE</literal>, has been added which enables
971	multi-queue support in the &man.em.4; driver.</para>
972
973      <note>
974	<para>Multi-queue support in the &man.em.4; driver is not
975	  officially supported by &intel;.</para>
976      </note>
977
978      <para revision="285142" contrib="sponsor"
979	sponsor="&netgate;">The <filename>GENERIC</filename> kernel
980	configuration has been updated to include the
981	<literal>IPSEC</literal> option by default.</para>
982
983      <para revision="285387" contrib="sponsor"
984	sponsor="&norse;, &dell;">Initial <acronym>NUMA</acronym>
985	affinity and policy configuration has been added.  See
986	&man.numactl.1;, and &man.numa.getaffinity.2;, for usage
987	details.</para>
988
989      <para revision="286231">The &man.pms.4; driver has been added
990	to the <filename>GENERIC</filename> kernel configuration for
991	supported architectures.</para>
992
993      <para revision="287306" arch="arm">The
994	<filename>CUBIEBOARD2</filename> kernel configuration has been
995	renamed to <filename>A20</filename>.</para>
996
997      <para revision="288176" contrib="sponsor" sponsor="&ff;">Kernel
998	debugging symbols are now installed to <filename
999	  class="directory">/usr/lib/debug/boot/kernel/</filename>.
1000	To retain the previous behavior, add
1001	<literal>KERN_DEBUGDIR=""</literal> to
1002	&man.src.conf.5;.</para>
1003    </sect2>
1004
1005    <sect2 xml:id="kernel-sysctl">
1006      <title>System Tuning and Controls</title>
1007
1008      <para revision="275140" contrib="sponsor" sponsor="&ff;">The
1009	&man.hwpmc.4; default and maximum callchain depths have been
1010	increased.  The default has been increased from 16 to 32, and
1011	the maximum increased from 32 to 128.</para>
1012
1013      <para revision="279361">The <literal>kern.osrelease</literal>
1014	and <literal>kern.osreldate</literal> are now configurable
1015	&man.jail.8; parameters.</para>
1016
1017      <para revision="280308,280949" contrib="sponsor"
1018	sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
1019	been changed to update timestamps for read/write operations
1020	using seconds precision.  A new &man.sysctl.8;,
1021	<literal>vfs.devfs.dotimes</literal> has been added, which
1022	when set to a non-zero value, enables default precision
1023	timestamps for these operations.</para>
1024
1025      <para revision="282213" contrib="sponsor" sponsor="&ff;">A new
1026	&man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
1027	added, which when set to a non-zero value allows using
1028	&man.rctl.8; with the <literal>GENERIC</literal> kernel.
1029	A new kernel configuration option,
1030	<literal>RACCT_DISABLED</literal> has also been added.</para>
1031
1032      <para revision="282901" contrib="sponsor" sponsor="&ff;">The
1033	<literal>GENERIC</literal> kernel configuration now includes
1034	<literal>RACCT</literal> and <literal>RCTL</literal> by
1035	default.</para>
1036
1037      <note>
1038	<para>To enable <literal>RACCT</literal> and
1039	  <literal>RCTL</literal> on a system using the
1040	  <literal>GENERIC</literal> kernel configuration, add
1041	  <literal>kern.racct.enable=1</literal> to
1042	  &man.loader.conf.5;, and reboot the system.</para>
1043      </note>
1044
1045      <para revision="283136" contrib="sponsor"
1046	sponsor="&limelight;">A new &man.sysctl.8;,
1047	<literal>net.inet.tcp.hostcache.purgenow</literal>, has
1048	been added, which when set to <literal>1</literal> during
1049	runtime will flush all
1050	<literal>net.inet.tcp.hostcache</literal> entries.</para>
1051
1052      <para revision="285524">A new &man.sysctl.8;,
1053	<literal>hw.model</literal>, has been added, which displays
1054	<acronym>CPU</acronym> model information.</para>
1055
1056      <para revision="286591">The &man.uart.4; driver has been
1057	updated to allow tuning pulses per second captured in the
1058	CTS line during runtime, whereas previously only the DCD line
1059	could be used without rebuilding the kernel.</para>
1060    </sect2>
1061  </sect1>
1062
1063  <sect1 xml:id="drivers">
1064    <title>Devices and Drivers</title>
1065
1066    <para>This section covers changes and additions to devices and
1067      device drivers since &release.prev;.</para>
1068
1069    <sect2 xml:id="drivers-device">
1070      <title>Device Drivers</title>
1071
1072      <para revision="260903">Support for GPS ports has been added to
1073	&man.uhso.4;.</para>
1074
1075      <para revision="265132">The &man.full.4; device has been added,
1076	and the <literal>lindev(4)</literal> device has been removed.
1077	Prior to this change, <literal>lindev(4)</literal> provided
1078	only the <filename>/dev/full</filename> character device,
1079	returning <literal>ENOSPC</literal> on write attempts.  As
1080	this device is not specific to &linux;, a native &os; version
1081	has been added.</para>
1082
1083      <para revision="271705">Hardware context support has been
1084	added to the <literal>drm/i915</literal> driver, adding
1085	support for <application>Mesa</application> 9.2 and
1086	later.</para>
1087
1088      <para revision="273178">The &man.vt.4; driver has been updated,
1089	replacing the bitmapped <literal>kern.vt.spclkeys</literal>
1090	&man.sysctl.8; with individual
1091	<literal>kern.vt.kbd_*</literal> variants.</para>
1092
1093      <para revision="273598">The &man.hpet.4; driver has been updated
1094	to create a
1095	<filename>/dev/hpet<replaceable>N</replaceable></filename>
1096	device, providing access to <acronym>HPET</acronym> from
1097	userspace.</para>
1098
1099      <para revision="280183">The <literal>drm</literal> code has
1100	been updated to match &linux; version 3.8.13.</para>
1101
1102      <para revision="281440">The &man.psm.4; driver has been updated
1103	to include improved support for newer Synaptics&nbsp;&reg;
1104	touchpads and the ClickPad&nbsp;&reg; mouse on newer
1105	Lenovo&nbsp;&trade; laptops.</para>
1106
1107      <para revision="282783" arch="powerpc">Support for the Freescale
1108	<acronym>PCI</acronym> Root Complex device has been
1109	added.</para>
1110
1111      <para revision="285876">The &man.cyapa.4; driver has been added,
1112	supporting the Cypress APA I2C trackpad.</para>
1113
1114      <para revision="285883">The &man.isl.4; driver has been added,
1115	supporting the Intersil I2C ISL29018 digital ambient light
1116	sensor.</para>
1117    </sect2>
1118
1119    <sect2 xml:id="drivers-storage">
1120      <title>Storage Drivers</title>
1121
1122      <para revision="265236" contrib="sponsor"
1123	sponsor="&lsi;, &spectralogic;" sponsorurl="">The &man.mpr.4;
1124	device has been added, providing support for LSI Fusion-MPT
1125	3 12Gb SCSI/SATA controllers.</para>
1126
1127      <para revision="265555" contrib="sponsor"
1128	  sponsor="&lsi;">The &man.mrsas.4; driver has been added,
1129	providing support for LSI MegaRAID SAS controllers.  The
1130	&man.mfi.4; driver will attach to the controller, by default.
1131	To enable &man.mrsas.4; add
1132	<literal>hw.mfi.mrsas_enable=1</literal> to
1133	<filename>/boot/loader.conf</filename>, which turns off
1134	&man.mfi.4; device probing.</para>
1135
1136      <note>
1137	<para>At this time, the &man.mfiutil.8; utility and the &os;
1138	  version of <application>MegaCLI</application> and
1139	  <application>StorCli</application> do not work with
1140	  &man.mrsas.4;.</para>
1141      </note>
1142
1143      <para revision="275461" contrib="sponsor" sponsor="&ix;">The
1144	&man.ctl.4; subsystem has been updated, increasing the ports
1145	limit from <literal>128</literal> to <literal>256</literal>,
1146	and <acronym>LUN</acronym> limit from <literal>256</literal>
1147	to <literal>1024</literal>.</para>
1148
1149      <para revision="276526">The <literal>asr(4)</literal> driver has
1150	been removed, and is no longer supported.</para>
1151
1152      <para revision="281387">The &man.hptnr.4; driver has been
1153	updated to version 1.1.1.</para>
1154
1155      <para revision="285662">The &man.pms.4; driver has been added,
1156	providing support for the PMC Sierra line of
1157	<acronym>SAS</acronym>/<acronym>SATA</acronym> host bus
1158	adapters.</para>
1159
1160      <para revision="287117" contrib="sponsor"
1161	sponsor="&emcisilon;">The &man.ioat.4; driver has been added,
1162	providing support for the <acronym>PSE</acronym> (Platform
1163	Storage Extension).</para>
1164
1165      <para revision="287621" contrib="sponsor" sponsor="&ix;">The
1166	<acronym>CTL</acronym> High Availability implementation has
1167	been rewritten.</para>
1168
1169      <para revision="288310">The &man.ctl.4; driver has been updated
1170	to support CD-ROM and removable devices.</para>
1171    </sect2>
1172
1173    <sect2 xml:id="drivers-network">
1174      <title>Network Drivers</title>
1175
1176      <para revision="258830">Support for Broadcom chipsets BCM57764,
1177	BCM57767, BCM57782, BCM57786 and BCM57787 has been added to
1178	&man.bge.4;.</para>
1179
1180      <para revision="260448">Support for the &intel; Centrino&trade;
1181	Wireless-N 135 chipset has been added.</para>
1182
1183      <para revision="260552">Firmware for &intel; Centrino&trade;
1184	Wireless-N 105 devices has been added to the base
1185	system.</para>
1186
1187      <para revision="261975">The deprecated nve(4) driver has been
1188	removed.  Users of NVIDIA nForce MCP network adapters are
1189	advised to use the &man.nfe.4; driver instead, which has been
1190	the default driver for this hardware since
1191	&os;&nbsp;7.0.</para>
1192
1193      <para revision="264601" contrib="sponsor"
1194	sponsor="&darpa_afrl;">The <literal>if_nf10bmac(4)</literal>
1195	device has been added, providing support for NetFPGA-10G
1196	Embedded CPU Ethernet Core.</para>
1197
1198      <note>
1199	<para>The <literal>if_nf10bmac(4)</literal> driver operates on
1200	  the FPGA, and is not suited for the PCI host
1201	  interface.</para>
1202      </note>
1203
1204      <para revision="265348" contrib="sponsor"
1205	sponsor="&netgate;">The &man.ath.hal.4; driver has been
1206	updated to support the Atheros AR1111 chipset.</para>
1207
1208      <para revision="266770">Support for the &intel; Centrino&trade;
1209	Wireless-N 105 chipset has been added.</para>
1210
1211      <para revision="266757" contrib="sponsor"
1212	sponsor="&chelsio;">Support for the &man.cxgbe.4; Terminator
1213	5 (T5) 10G/40G cards has been added to &man.netmap.4;.</para>
1214
1215      <para revision="272730">The &man.alc.4; driver has been updated
1216	to support AR816x and AR817x ethernet controllers.</para>
1217
1218      <para revision="272906">The &man.pf.4; packet filter default
1219	hash has been changed from <literal>Jenkins</literal> to
1220	<literal>Murmur3</literal>, providing a 3-percent performance
1221	increase in packets-per-second.</para>
1222
1223      <para revision="273331">The &man.vxlan.4; driver has been added,
1224	which creates a virtual Layer 2 (Ethernet) network overlaid in
1225	a Layer 3 (IP/UDP) network.  The &man.vxlan.4; driver is
1226	analogous to &man.vlan.4;, but is designed to be better suited
1227	for large, multiple-tenant datacenter environments.</para>
1228
1229      <para revision="274246" contrib="sponsor" sponsor="&yandex;">The
1230	&man.gre.4; driver has been significantly overhauled, and has
1231	been split into two separate modules, &man.gre.4; and
1232	&man.me.4;.</para>
1233
1234      <para revision="278551">The &man.ral.4; driver has been updated
1235	to support the RT5390 and RT5392 chipsets.</para>
1236
1237      <para revision="283514" contrib="sponsor"
1238	sponsor="&solarflare;">The &man.sfxge.4; driver has been
1239	updated to support Solarflare Flareon Ultra 7000-series
1240	chipsets.</para>
1241
1242      <para revision="283766" contrib="sponsor"
1243	sponsor="&limelight;">The &man.em.4; driver has been updated
1244	with improved transmission queue hang detection.</para>
1245
1246      <para revision="284125">The &man.cdce.4; driver has been updated
1247	to include support for the RTL8153 chipset.</para>
1248
1249      <para revision="286441">The &man.iwm.4; driver has been imported
1250	from OpenBSD, providing support for &intel; 3160/7260/7265
1251	wireless chipsets.</para>
1252
1253      <para revision="286829" contrib="sponsor"
1254	sponsor="&limelight;">The &man.em.4; driver has been updated
1255	to allow disabling <acronym>CRC</acronym> stripping.</para>
1256
1257      <para revision="287222">The &man.pf.4; implementation has been
1258	updated to remove support for the <literal>scrub fragment
1259	  crop|drop-ovl</literal> filtering rule.  Systems with this
1260	rule in &man.pf.conf.5; will implicitly be converted to the
1261	<literal>scrub fragment reassemble</literal> filtering rule,
1262	without necessary intervention.</para>
1263
1264      <para revision="288654">The &man.lagg.4; driver has been updated
1265	to remove support for the <literal>fec</literal>
1266	protocol.</para>
1267    </sect2>
1268  </sect1>
1269
1270  <sect1 xml:id="hardware">
1271    <title>Hardware Support</title>
1272
1273    <para>This section covers general hardware support for physical
1274      machines, hypervisors, and virtualization environments, as well
1275      as hardware changes and updates that do not otherwise fit in
1276      other sections of this document.</para>
1277
1278    <sect2 xml:id="hardware-support">
1279      <title>Hardware Support</title>
1280
1281      <para revision="268303">The &man.asmc.4; driver has been
1282	updated to support the &apple;&nbsp;MacMini 3,1.</para>
1283
1284      <para revision="268351">Support for &os;/ia64 has been dropped
1285	as of &os;&nbsp;11.</para>
1286
1287      <para revision="274386">An issue that could cause a system to
1288	hang when entering <acronym>ACPI</acronym>
1289	<literal>S3</literal> state (suspend to
1290	<acronym>RAM</acronym>) has been corrected in the &man.acpi.4;
1291	and &man.pci.4; drivers.</para>
1292
1293      <para revision="274733" arch="powerpc">The power management unit
1294	subsystem has been updated to support power button events on
1295	certain &arch.powerpc; hardware, such as aluminum
1296	PowerBook&nbsp;&reg;.</para>
1297
1298      <para revision="275171,275190" arch="powerpc">The &man.hwpmc.4;
1299	driver has been updated to correct performance counter
1300	sampling on G4 (MPC74xxx) and G5 class processors.</para>
1301
1302      <para revision="275732" contrib="sponsor"
1303	sponsor="&ff;,&netgate;">The
1304	<application>OpenCrypto</application> framework has been
1305	updated to include <literal>AES-ICM</literal> and
1306	<literal>AES-GCM</literal> modes, both of which have also been
1307	added to the &man.aesni.4; driver.</para>
1308
1309      <para revision="281713" arch="powerpc">The &man.hwpmc.4;
1310	driver has been updated to support the Freescale e500
1311	core.</para>
1312
1313      <para revision="283766">The &man.ig4.4; driver has been added,
1314	providing support for the fourth generation &intel;
1315	<acronym>I2C</acronym> SMBus.</para>
1316
1317      <para>The &man.uart.4; driver has been updated to support
1318	<acronym>AMT</acronym> devices on newer systems.</para>
1319
1320      <para revision="285316" contrib="sponsor" sponsor="&ff;"
1321	arch="arm64">Initial <acronym>SMP</acronym> support has been
1322	added to the &os;/&arch.arm64; port.</para>
1323    </sect2>
1324
1325    <sect2 xml:id="hardware-virtualization">
1326      <title>Virtualization Support</title>
1327
1328      <para revision="260410">Support for the <quote>Virtual Interrupt
1329	  Delivery</quote> feature of &intel;&nbsp;VT-x is enabled if
1330	supported by the CPU.  This feature can be disabled by running
1331	<literal>sysctl hw.vmm.vmx.use_apic_vid=0</literal>.
1332	Additionally, to persist this setting across reboots, add
1333	<literal>hw.vmm.vmx.use_apic_vid=0</literal> to
1334	<filename>/etc/sysctl.conf</filename>.</para>
1335
1336      <para revision="260532">Support for <quote>Posted Interrupt
1337	  Processing</quote> is enabled if supported by the CPU.  This
1338	feature can be disabled by running <literal>sysctl
1339	  hw.vmm.vmx.use_apic_pir=0</literal>.  Additionally, to
1340	persist this setting across reboots, add
1341	<literal>hw.vmm.vmx.use_apic_pir=0</literal> to
1342	<filename>/etc/sysctl.conf</filename>.</para>
1343
1344      <para revision="260582">Unmapped IO support has been added to
1345	&man.virtio_blk.4;.</para>
1346
1347      <para revision="260583">Unmapped IO support has been added to
1348	&man.virtio_scsi.4;.</para>
1349
1350      <para revision="260847">The &man.virtio_random.4; driver has
1351	been added to harvest entropy from the host system.</para>
1352
1353      <para revision="261504">&os;/&arch.i386; guests can be run under
1354	bhyve.</para>
1355
1356      <para revision="267536" contrib="sponsor"
1357	sponsor="&citrix.rd;">Support for running a &os;/&arch.amd64;
1358	<application>Xen</application> guest instance as
1359	<acronym>PVH</acronym> guest has been added.
1360	<acronym>PVH</acronym> mode, short for <quote>Para-Virtualized
1361	  Hardware</quote>, uses para-virtualized drivers for boot and
1362	I/O, and uses hardware virtualization extensions for all other
1363	tasks, without the need for emulation.</para>
1364
1365      <para revision="273375">The &man.bhyve.8; hypervisor has been
1366	updated to support &amd; processors with
1367	<acronym>SVM</acronym> and <acronym>AMD-V</acronym> hardware
1368	extensions.</para>
1369
1370      <para revision="273515">The &man.virtio.console.4; driver has
1371	been added, which provides an interface to VirtIO console
1372	devices through a &man.tty.4; device.</para>
1373
1374      <para revision="279957">The &man.bhyve.8; hypervisor has been
1375	updated to support <literal>DSM TRIM</literal> commands for
1376	virtual <acronym>AHCI</acronym> disks.</para>
1377
1378      <para revision="281439" arch="arm">Support for the
1379	<application>QEMU</application> <literal>virt</literal> system
1380	has been added.</para>
1381
1382      <para revision="282212" contrib="sponsor" sponsor="&msostc;">The
1383	Hyper-V&trade; drivers have been updated with several
1384	enhancements:</para>
1385
1386      <itemizedlist>
1387	<listitem>
1388	  <para>The &man.hv.vmbus.4; driver now has multi-channel
1389	    support.</para>
1390	</listitem>
1391
1392	<listitem>
1393	  <para>The &man.hv.storvsc.4; driver now has scatter/gather
1394	    support, in addition to performance improvements.</para>
1395	</listitem>
1396
1397	<listitem>
1398	  <para>The &man.hv.kvp.4; driver has received several bug
1399	    fixes.</para>
1400	</listitem>
1401      </itemizedlist>
1402
1403      <para revision="282274">Support for &man.xen.4; para-virtualized
1404	<literal>domU</literal> kernels has been removed.</para>
1405
1406      <para revision="284746" contrib="sponsor" sponsor="&msostc;">The
1407	&man.hv.netvsc.4; driver has been updated to support checksum
1408	offloading and <acronym>TSO</acronym>.</para>
1409
1410      <para revision="286062">The &man.xen.4; driver has been updated
1411	to include support for <literal>blkif</literal> indirect
1412	segment I/O.</para>
1413    </sect2>
1414
1415    <sect2 xml:id="hardware-arm">
1416      <title>ARM Support</title>
1417
1418      <para revision="260921">The &man.nand.4; device is enabled for
1419	ARM devices by default.</para>
1420
1421      <para revision="266943" arch="arm">Support for the Exynos 5420
1422	Octa system has been added.</para>
1423
1424      <para revision="267390" arch="arm">The <acronym>SMP</acronym>
1425	option has been enabled for all Exynos 5 systems supported by
1426	&os;.</para>
1427
1428      <para revision="268838" arch="arm">Support for the Toradex
1429	Apalis i.MX6 development board has been added.</para>
1430
1431      <para revision="273264" arch="armv6">An issue that could cause
1432	instability when detecting <acronym>SD</acronym> cards on the
1433	Raspberry Pi <acronym>SOC</acronym> has been fixed.</para>
1434
1435      <para revision="275963">The <literal>bcm2835_cpufreq</literal>
1436	driver has been added, which supports <acronym>CPU</acronym>
1437	frequency and voltage control on the Raspberry Pi
1438	<acronym>SOC</acronym>.</para>
1439
1440      <para revision="277042" arch="arm">Support to turn off the
1441	BeagleBone Black system with the &man.shutdown.8;
1442	<literal>-p</literal> flag or by invoking &man.poweroff.8; has
1443	been added.</para>
1444
1445      <para revision="277644" arch="arm">Audio transmission drivers
1446	have been added for Digital Audio Multiplexer
1447	(<acronym>AUDMUXM</acronym>), Smart Direct Memory Access
1448	Controller (<acronym>SDMA</acronym>), and Syncronous Serial
1449	Interface (<acronym>SSI</acronym>).</para>
1450
1451      <para revision="280259" contrib="sponsor" sponsor="&ff;">Initial
1452	support for the ARM AArch64 architecture has been
1453	added.</para>
1454
1455      <para revision="282779" arch="arm">Kernel support for Thumb-2
1456	userland has been added.</para>
1457
1458      <para revision="282827">Support for the hardware power button
1459	on the BeagleBone Black system has been added.</para>
1460
1461      <para revision="284273" contrib="sponsor"
1462	sponsor="&ff;">Initial
1463	<acronym>ACPI</acronym> support has been added for
1464	&os;/&arch.arm64;.</para>
1465
1466      <para revision="287225">Support for 1-Wire devices has been
1467	added, providing support for 1-Wire hardware through
1468	&man.gpio.4;.  See &man.ow.4;, &man.owc.4;, and
1469	&man.ow.temp.4; for more information.</para>
1470
1471      <para revision="287371" arch="arm64" contrib="sponsor"
1472	sponsor="&abt;">Support for the HiSilicon HI6220 SoC has been
1473	added.</para>
1474    </sect2>
1475  </sect1>
1476
1477  <sect1 xml:id="storage">
1478    <title>Storage</title>
1479
1480    <para>This section covers changes and additions to file systems
1481      and other storage subsystems, both local and networked.</para>
1482
1483    <sect2 xml:id="storage-general">
1484      <title>General Storage</title>
1485
1486      <para revision="278037" contrib="sponsor" sponsor="&ix;">The
1487	&man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
1488	replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
1489	with a new mechanism that works for any port.</para>
1490
1491      <para revision="278354" contrib="sponsor" sponsor="&ix;">The
1492	&man.ctld.8; utility has been updated to allow controlling
1493	non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
1494
1495      <para revision="275681" contrib="sponsor" sponsor="&ff;">The
1496	&man.autofs.5; subsystem has been updated to include a new
1497	&man.auto.master.5; map, <literal>-media</literal>, which
1498	allows automatically mounting removable media, such as
1499	<acronym>CD</acronym> drives or <acronym>USB</acronym> flash
1500	drives.</para>
1501
1502      <para revision="279955" contrib="sponsor" sponsor="&ff;">The
1503	&man.autofs.5; subsystem has been updated to include a new
1504	&man.auto.master.5; map, <literal>-noauto</literal>, which
1505	handles &man.fstab.5; entries set to
1506	<literal>noauto</literal>.</para>
1507
1508      <para revision="286444">The <acronym>GELI</acronym> class has
1509	been updated to support the <literal>BIO_DELETE</literal>
1510	&man.g.bio.9; <literal>bio_cmd</literal> field, providing
1511	<acronym>TRIM</acronym>/<acronym>UNMAP</acronym> support on
1512	<acronym>GELI</acronym>-backed <acronym>SSD</acronym> storage
1513	providers.</para>
1514    </sect2>
1515
1516    <sect2 xml:id="storage-net">
1517      <title>Networked Storage</title>
1518
1519      <para revision="270096" contrib="sponsor" sponsor="&ff;">The new
1520	filesystem automount facility, &man.autofs.5;, has been added.
1521	The new &man.autofs.5; facility is similar to that found in
1522	other &unix;-like operating systems, such as OS&nbsp;X&trade;
1523	and Solaris&trade;.  The &man.autofs.5; facility uses
1524	a &sun;-compatible &man.auto.master.5; configuration file, and
1525	is administered with the &man.automount.8; userland utility,
1526	and the &man.automountd.8; and &man.autounmountd.8;
1527	daemons.</para>
1528
1529      <para revision="273849" contrib="sponsor" sponsor="&ff;">Support
1530	for the <literal>timeo</literal>, <literal>actimeo</literal>,
1531	<literal>noac</literal>, and <literal>proto</literal> options
1532	have been added to &man.mount.nfs.8;.</para>
1533    </sect2>
1534
1535    <sect2 xml:id="storage-zfs">
1536      <title>ZFS</title>
1537
1538      <para revision="275748">The <literal>arc_meta_limit</literal>
1539	statistics are now visible through the
1540	<literal>kstat</literal> &man.sysctl.8;.  As a result of this
1541	change, the <literal>vfs.zfs.arc_meta_used</literal>
1542	&man.sysctl.8; has been removed, and replaced with the
1543	<literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
1544	&man.sysctl.8;.</para>
1545
1546      <para revision="287099" contrib="sponsor"
1547	sponsor="&clusterhq;">The &man.zfs.8; <literal>l2arc</literal>
1548	code has been updated to take <literal>ashift</literal> into
1549	account when gathering buffers to be written to the
1550	<literal>l2arc</literal> device.</para>
1551    </sect2>
1552
1553    <sect2 xml:id="storage-geom">
1554      <title>&man.geom.4;</title>
1555
1556      <para revision="267359">Support for the
1557	<literal>disklabel64</literal> partitioning scheme has been
1558	added to &man.gpart.8;.</para>
1559
1560      <para revision="282465">Support for the
1561	<literal>apple-boot</literal>, <literal>apple-hfs</literal>,
1562	and <literal>apple-ufs</literal> <acronym>MBR</acronym>
1563	partitioning schemes have been added to &man.gpart.8;.</para>
1564
1565      <para revision="285594" contrib="sponsor"
1566	sponsor="&scaleengine;">The &man.gpart.8; utility has been
1567	updated to include a new attribute for <acronym>GPT</acronym>
1568	partitions, <literal>lenovofix</literal>, which when set,
1569	which works around <acronym>BIOS</acronym> compatibility
1570	issues reported on several Lenovo&nbsp;&trade; laptops.</para>
1571    </sect2>
1572  </sect1>
1573
1574  <sect1 xml:id="boot">
1575    <title>Boot Loader Changes</title>
1576
1577    <para>This section covers the boot loader, boot menu, and other
1578      boot-related changes.</para>
1579
1580    <sect2 xml:id="boot-loader">
1581      <title>Boot Loader Changes</title>
1582
1583      <para revision="258431" contrib="sponsor" sponsor="&ff;">The
1584	memory test run at boot time on &os;/&arch.amd64; platforms
1585	has been disabled by default.</para>
1586
1587      <para revision="262955">A new &man.ttys.5; class,
1588	<literal>3wire</literal>, has been added.  This is similar to
1589	the existing terminal classes, but does not have a defined
1590	baudrate.</para>
1591
1592      <para revision="274085">The &man.vt.4; driver has been made the
1593	default system console driver.  The &man.syscons.4; driver is
1594	still available, and can be enabled by adding
1595	<literal>kern.vty=sc</literal> in &man.loader.conf.5;.
1596	Alternatively, &man.syscons.4; can be enabled at boot time by
1597	entering <literal>set kern.vty=sc</literal> at the
1598	&man.loader.8; prompt.</para>
1599
1600      <para revision="279950">Support for <literal>bzipfs</literal>
1601	has been added to the <acronym>EFI</acronym> loader.</para>
1602
1603      <para revision="281616">The boot loader has been updated to
1604	support entering the <acronym>GELI</acronym> passphrase before
1605	loading the kernel.  To enable this behavior, add
1606	<literal>geom_eli_passphrase_prompt="YES"</literal> to
1607	&man.loader.conf.5;.</para>
1608
1609      <para revision="284683" contrib="sponsor" sponsor="&ff;"
1610	arch="arm">The &man.ttys.5; file for &os;/&arch.arm; has been
1611	updated to enable <filename>ttyu1</filename>,
1612	<filename>ttyu2</filename>, and <filename>ttyu3</filename> by
1613	default, if the callin port is an active console port.</para>
1614    </sect2>
1615
1616    <sect2 xml:id="boot-menu">
1617      <title>Boot Menu Changes</title>
1618
1619      <para>&nbsp;</para>
1620    </sect2>
1621  </sect1>
1622
1623  <sect1 xml:id="network">
1624    <title>Networking</title>
1625
1626    <para>This section describes changes that affect networking in
1627      &os;.</para>
1628
1629    <sect2 xml:id="network-protocols">
1630      <title>Network Protocols</title>
1631
1632      <para revision="263140">Support for the IPX network transport
1633	protocol has been removed, and will not be supported in
1634	&os;&nbsp;11 and later releases.</para>
1635
1636      <para revision="272720" contrib="sponsor"
1637	sponsor="&limelight;">Support for <acronym>PLPMTUD</acronym>
1638	blackhole detection (<acronym>RFC</acronym> 4821) has been
1639	added to the &man.tcp.4; stack, disabled by default.  New
1640	control tunables have been added:</para>
1641
1642      <informaltable frame="none" pgwide="0">
1643	<tgroup cols="2">
1644	  <colspec colwidth="1*"/>
1645	  <colspec colwidth="1*"/>
1646	  <thead>
1647	    <row>
1648	      <entry>Tunable</entry>
1649	      <entry>Description</entry>
1650	    </row>
1651	  </thead>
1652
1653	  <tbody>
1654	    <row>
1655	      <entry><literal>net.inet.tcp.pmtud_blackhole_detection</literal></entry>
1656	      <entry>Enables or disables <acronym>PLPMTUD</acronym>
1657		blackhole detection</entry>
1658	    </row>
1659
1660	    <row>
1661	      <entry><literal>net.inet.tcp.pmtud_blackhole_mss</literal></entry>
1662	      <entry><acronym>MSS</acronym> to try for IPv4</entry>
1663	    </row>
1664
1665	    <row>
1666	      <entry><literal>net.inet.tcp.v6pmtud_blackhole_mss</literal></entry>
1667	      <entry><acronym>MSS to try for IPv6</acronym></entry>
1668	    </row>
1669	  </tbody>
1670	</tgroup>
1671      </informaltable>
1672
1673      <para>New monitoring &man.sysctl.8;s haven been added:</para>
1674
1675      <informaltable frame="none" pgwide="0">
1676	<tgroup cols="2">
1677	  <colspec colwidth="1*"/>
1678	  <colspec colwidth="1*"/>
1679	  <thead>
1680	    <row>
1681	      <entry>Tunable</entry>
1682	      <entry>Description</entry>
1683	    </row>
1684	  </thead>
1685
1686	  <tbody>
1687	    <row>
1688	      <entry><literal>net.inet.tcp.pmtud_blackhole_activated</literal></entry>
1689	      <entry>Number of times the code was activated to attempt
1690		downshifting the <acronym>MSS</acronym></entry>
1691	    </row>
1692
1693	    <row>
1694	      <entry><literal>net.inet.tcp.pmtud_blackhole_min_activated</literal></entry>
1695	      <entry>Number of times the blackhole
1696		<acronym>MSS</acronym> was used in an attempt to
1697		downshift</entry>
1698	    </row>
1699
1700	    <row>
1701	      <entry><literal>net.inet.tcp.pmtud_blackhole_failed</literal></entry>
1702	      <entry>Number of times that the blackhole failed to
1703		connect after downshifting the
1704		<acronym>MSS</acronym></entry>
1705	    </row>
1706	  </tbody>
1707	</tgroup>
1708      </informaltable>
1709
1710      <para revision="280971" contrib="sponsor"
1711	sponsor="&netflix;, &nginx;">Support for <acronym>IP</acronym>
1712	identification for atomic datagrams (<acronym>RFC</acronym>
1713	6864) has been added.  Support for this feature can be toggled
1714	with the <literal>net.inet.ip.rfc6864</literal>
1715	&man.sysctl.8;, which is enabled by default.</para>
1716
1717      <para revision="285336" contrib="sponsor"
1718	sponsor="&netgate;">The <acronym>IPSEC</acronym> has been
1719	updated to include support for <acronym>AES</acronym> modes on
1720	both software-only and hardware-backed (&man.aesni.4;)
1721	systems.</para>
1722
1723      <para revision="287798" contrib="sponsor" sponsor="&dell;">The
1724	network stack has been updated to fix handling of
1725	<acronym>IPv6</acronym> On-Link redirects.</para>
1726    </sect2>
1727  </sect1>
1728
1729  <sect1 xml:id="ports">
1730    <title>Ports Collection and Package Infrastructure</title>
1731
1732    <para>This section covers changes to the &os;&nbsp;Ports
1733      Collection, package infrastructure, and package maintenance and
1734      installation tools.</para>
1735
1736    <sect2 xml:id="ports-infrastructure">
1737      <title>Infrastructure Changes</title>
1738
1739      <para>&nbsp;</para>
1740    </sect2>
1741
1742    <sect2 xml:id="ports-packages ">
1743      <title>Packaging Changes</title>
1744
1745      <para>&nbsp;</para>
1746    </sect2>
1747  </sect1>
1748
1749  <sect1 xml:id="doc">
1750    <title>Documentation</title>
1751
1752    <para>This section covers changes to the &os;&nbsp;Documentation
1753      Project sources and toolchain.</para>
1754
1755    <sect2 xml:id="doc-sources">
1756      <title>Documentation Source Changes</title>
1757
1758      <para>&nbsp;</para>
1759    </sect2>
1760
1761    <sect2 xml:id="doc-toolchain">
1762      <title>Documentation Toolchain Changes</title>
1763
1764      <para>&nbsp;</para>
1765    </sect2>
1766  </sect1>
1767
1768  <sect1 xml:id="releng">
1769    <title>Release Engineering and Integration</title>
1770
1771    <para>This section convers changes that are specific to the
1772      &os;&nbsp;Release Engineering processes.</para>
1773
1774    <sect2 xml:id="releng-changes">
1775      <title>Integration Changes</title>
1776
1777      <para revision="277458" contrib="sponsor" sponsor="&ff;">The
1778	Release Engineering build tools have been updated to include
1779	support for producing virtual machine disk images for various
1780	cloud hosting providers.</para>
1781
1782      <para revision="278926">The Release Engineering build tools have
1783	been updated to use multi-threaded &man.xz.1;.  By default,
1784	the number of &man.xz.1; threads is set to the number of cores
1785	available.</para>
1786
1787      <para revision="281802" contrib="sponsor" sponsor="&ff;">The
1788	Release Engineering build tools have been updated to include
1789	support for building &os;/&arch.arm64; virtual machine and
1790	memory stick installation images.</para>
1791
1792      <para revision="282693" contrib="sponsor" sponsor="&ff;">The
1793	Release Engineering build tools have been updated to support
1794	building &os;/&arch.arm; images without external utilities for
1795	supported boards where a corresponding
1796	<literal>u-boot</literal> port exists in the Ports
1797	Collection.</para>
1798
1799      <para revision="283307" contrib="sponsor" sponsor="&ff;">The
1800	&os;/&arch.i386; memory stick installation images are now
1801	created using the &man.mkimg.1; utility, matching the way
1802	the &os;/&arch.amd64; images are created.</para>
1803    </sect2>
1804  </sect1>
1805</article>
1806