article.xml revision 285584
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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">
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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: stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml 285584 2015-07-14 21:46:06Z gjb $</pubdate>
24
25    <!-- Last rev: 284813 -->
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;.</para>
98
99    <para>Typical release note items document recent security
100      advisories issued after &release.prev;, new drivers or hardware
101      support, new commands or options, major bug fixes, or
102      contributed software upgrades.  They may also list changes to
103      major ports/packages or release engineering practices.  Clearly
104      the release notes cannot list every single change made to &os;
105      between releases; this document focuses primarily on security
106      advisories, user-visible changes, and major architectural
107      improvements.</para>
108  </sect1>
109
110  <sect1 xml:id="upgrade">
111    <title>Upgrading from Previous Releases of &os;</title>
112
113    <para arch="amd64,i386">Binary upgrades between RELEASE versions
114      (and snapshots of the various security branches) are supported
115      using the &man.freebsd-update.8; utility.  The binary upgrade
116      procedure will update unmodified userland utilities, as well as
117      unmodified <filename>GENERIC</filename> kernel distributed as
118      a part of an official &os; release.  The &man.freebsd-update.8;
119      utility requires that the host being upgraded have Internet
120      connectivity.</para>
121
122    <para>Source-based upgrades (those based on recompiling the &os;
123      base system from source code) from previous versions are
124      supported, according to the instructions in
125      <filename>/usr/src/UPDATING</filename>.</para>
126
127    <important>
128      <para>Upgrading &os; should only be attempted after
129	backing up <emphasis>all</emphasis> data and configuration
130	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="276991">The &man.termcap.5; file is installed
163	as-is from sources, instead of reordering, creating
164	<filename>/etc/termcap.db</filename> by default, providing
165	a performance improvements to applications that use the
166	&man.termcap.5; database, such as &man.vi.1; and
167	&man.ncurses.3;.</para>
168    </sect2>
169
170    <sect2 xml:id="userland-programs">
171      <title>Userland Application Changes</title>
172
173      <para revision="275040">A new utility, &man.dpv.1;, has been
174	added to the base system, providing a &man.dialog.1;-style
175	progress view from one or more input streams.  A corresponding
176	library, &man.dpv.3;, has also been added.</para>
177
178      <para revision="275945">The &man.elfdump.1; utility has been
179	updated to support capability mode provided by
180	&man.capsicum.4;.</para>
181
182      <para revision="277434" contrib="sponsor" sponsor="&ff;">The
183	&man.fstyp.8; utility has been added, which is used to
184	determine the filesystem on a specified device.</para>
185
186      <para revision="278968" contrib="sponsor" sponsor="&ff;">The
187	&man.mkimg.1; utility has been updated to support the
188	<acronym>MBR</acronym> <acronym>EFI</acronym> partition
189	type.</para>
190
191      <para revision="281044">A regression in the &man.libarchive.3;
192	library that would prevent a directory from being included in
193	the archive when <literal>--one-file-system</literal> is used
194	has been fixed.</para>
195
196      <para revision="281161" contrib="sponsor"
197	sponsor="&limelight;">A new flag, <literal>-R</literal>, has
198	been added to the &man.netstat.8; utility, which is used to
199	dump <acronym>RSS</acronym>/flow information.</para>
200
201      <para revision="281936" contrib="sponsor" sponsor="&ff;">The
202	&man.ar.1; utility has been updated to set
203	<literal>ARCHIVE_EXTRACT_SECURE_SYMLINKS</literal> and
204	<literal>ARCHIVE_EXTRACT_SECURE_NODOTDOT</literal> to disallow
205	directory traversal when extracting an archive, similar to
206	&man.tar.1;.</para>
207
208      <para revision="282278">A race condition in &man.wc.1; that
209	would cause final results to be sent to &man.stderr.4; when
210	receiving the <literal>SIGINFO</literal> signal has been
211	fixed.</para>
212
213      <para revision="282870" contrib="sponsor"
214	sponsor="&scaleengine;">The &man.freebsd-update.8; utility has
215	been updated to prevent fetching updated binary patches when
216	a previous upgrade has not been thoroughly completed.</para>
217
218      <para revision="282974" contrib="sponsor" sponsor="&ff;">The
219	&man.uefisign.8; utility has been added.</para>
220
221      <para revision="283875" contrib="sponsor"
222	sponsor="&multiplay;">The &man.chflags.1;, &man.chgrp.1;,
223	&man.chmod.1;, and &man.chown.8; utilities now affect symbolic
224	links when the <literal>-R</literal> flag is specified, as
225	documented in &man.symlink.7;.</para>
226
227      <para revision="283258">The &man.date.1; utility has been
228	updated to print the modification time of the file passed as
229	an argument to the <literal>-r</literal> flag, improving
230	compatibility with the <acronym>GNU</acronym> &man.date.1;
231	utility behavior.</para>
232
233      <para revision="284523">A new flag, <literal>-c</literal>, has
234	been added to the &man.mkimg.1; utility, which allows
235	specifying the capacity of the target disk image.</para>
236
237      <para revision="285092">The &man.pw.8; utility has been updated
238	with a new flag, <literal>-R</literal>, that sets the root
239	directory within which the utility will operate.</para>
240    </sect2>
241
242    <sect2 xml:id="userland-contrib">
243      <title>Contributed Software</title>
244
245      <para revision="282746" contrib="sponsor" sponsor="&ff;">The
246	&man.resolvconf.8; utility has been updated to version
247	3.7.0.</para>
248
249      <para revision="283270">The &man.nc.1; utility has been updated
250	to the OpenBSD 5.7 version.</para>
251
252      <para revision="284398">Timezone data files have been updated to
253	version 2015e.</para>
254
255      <para revision="284460">The &man.acpi.4; subsystem has been
256	updated to version 20150515.</para>
257
258      <para revision="284778">The &man.file.1; utility has been
259	updated to version 5.23.</para>
260
261      <para revision="285206">The &man.unbound.8; utility has been
262	updated to version 1.5.3.</para>
263
264      <para revision="285305">The <application>sendmail</application>
265	utility has been updated to version 8.15.2.</para>
266
267      <para revision="285330"><application>OpenSSL</application> has
268	been updated to version 1.0.1p.</para>
269    </sect2>
270
271    <sect2 xml:id="userland-installer">
272      <title>Installation and Configuration Tools</title>
273
274      <para>&nbsp;</para>
275    </sect2>
276
277    <sect2 xml:id="userland-rc">
278      <title><filename class="directory">/etc/rc.d</filename>
279	Scripts</title>
280
281      <para revision="284009">A new &man.rc.8; script,
282	<filename>growfs</filename>, has been added, which will resize
283	the root filesystem on boot if <filename>/firstboot</filename>
284	exists.</para>
285    </sect2>
286
287    <sect2 xml:id="userland-periodic">
288      <title><filename class="directory">/etc/periodic</filename>
289	Scripts</title>
290
291      <para revision="277520" contrib="sponsor" sponsor="&ff;">A new
292	&man.periodic.8; script,
293	<filename>510.status-world-kernel</filename>, has been added,
294	which evaluates the running userland and kernel versions from
295	the &man.uname.1; <literal>-U</literal> and
296	<literal>-K</literal> arguments, and prints an error if the
297	system userland and kernel are not in sync.</para>
298    </sect2>
299
300    <sect2 xml:id="userland-libraries">
301      <title>Runtime Libraries and API</title>
302
303      <para revision="275040">A new file configuration library,
304	&man.figpar.3;, has been added to the base system.</para>
305
306      <para revision="276686" contrib="sponsor" sponsor="&ff;">The
307	&man.procctl.2; system call has been updated to include
308	a facility for non-&man.init.8; processes to be declared as
309	the reaper of child processes and their decendants.</para>
310
311      <para revision="280392">The &man.setmode.3; function has been
312	updated to consistently set <literal>errno</literal> on
313	failure.</para>
314    </sect2>
315
316    <sect2 xml:id="userland-abi">
317      <title>ABI Compatibility</title>
318
319      <para revision="275807">The &linux; compatibility version has
320	been updated to <literal>2.6.18</literal>.  The
321	<literal>compat.linux.osrelease</literal> &man.sysctl.8; is
322	evaluated when building the <filename
323	  role="package">emulators/linux-c6</filename> and related
324	ports.</para>
325    </sect2>
326  </sect1>
327
328  <sect1 xml:id="kernel">
329    <title>Kernel</title>
330
331    <para>This section covers changes to kernel configurations, system
332      tuning, and system control parameters that are not otherwise
333      categorized.</para>
334
335    <sect2 xml:id="kernel-bugfix">
336      <title>Kernel Bug Fixes</title>
337
338      <para revision="276068">A kernel panic triggered when destroying
339	a &man.vnet.9; &man.jail.8; configured with &man.gif.4; has
340	been fixed.</para>
341
342      <para revision="284018">A kernel panic triggered when destroying
343	a &man.vnet.9; &man.jail.8; configured with &man.gre.4; has
344	been fixed.</para>
345    </sect2>
346
347    <sect2 xml:id="kernel-config">
348      <title>Kernel Configuration</title>
349
350      <para revision="282065" contrib="sponsor" sponsor="&ff;">The
351	<literal>PAE_TABLES</literal> kernel configuration option has
352	been added for &os;/&arch.i386;, which instructs &man.pmap.9;
353	to use <acronym>PAE</acronym> format for page tables.</para>
354
355      <para revision="282826">The <literal>SIFTR</literal> kernel
356	configuration has been added, allowing building &man.siftr.4;
357	statically into the kernel.</para>
358
359      <para revision="283076" contrib="sponsor" sponsor="&intelcorp;"
360	arch="amd64,i386">The &man.nvd.4; and &man.nvme.4; drivers are
361	now included in the <filename>GENERIC</filename> kernel
362	configuration by default.</para>
363
364      <para revision="283505">Support for booting relocatable kernels
365	has been extended to non-<acronym>EFI</acronym>
366	systems.</para>
367
368      <para revision="283505" arch="arm">The &arch.arm; boot loader,
369	<filename>ubldr</filename>, is now relocatable.  In addition,
370	<filename>ubldr.bin</filename> is now created during build
371	time, which is a stripped binary with an entry point of
372	<literal>0</literal>, providing the ability to specify the
373	load address by running <literal>go
374	  &dollar;{loadaddr}</literal> in
375	<literal>u-boot</literal>.</para>
376      <para revision="284522" contrib="sponsor"
377	sponsor="&limelight;">A new kernel configuration option,
378	<literal>EM_MULTIQUEUE</literal>, has been added which enables
379	multi-queue support in the &man.em.4; driver.</para>
380
381      <note>
382	<para>Multi-queue support in the &man.em.4; driver is not
383	  officially supported by &intel;.</para>
384      </note>
385    </sect2>
386
387    <sect2 xml:id="kernel-sysctl">
388      <title>System Tuning and Controls</title>
389
390      <para revision="276986">Throttling via <acronym>ACPI</acronym>
391	and <acronym>P4TCC</acronym> via &man.device.hints.5; have
392	been turned off by default.</para>
393
394      <para revision="278982" contrib="sponsor" sponsor="&ff;">The
395	&man.hwpmc.4; default and maximum callchain depths have been
396	increased.  The default has been increased from 16 to 32, and
397	the maximum increased from 32 to 128.</para>
398
399      <para revision="281255" contrib="sponsor"
400	sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
401	been changed to update timestamps for read/write operations
402	using seconds precision.  A new &man.sysctl.8;,
403	<literal>vfs.devfs.dotimes</literal> has been added, which
404	when set to a non-zero value, enables default precision
405	timestamps for these operations.</para>
406
407      <para revision="280632">The <literal>kern.osrelease</literal>
408	and <literal>kern.osreldate</literal> are now configurable
409	&man.jail.8; parameters.</para>
410
411      <para revision="284665" contrib="sponsor" sponsor="&ff;">A new
412	&man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
413	added, which when set to a non-zero value allows using
414	&man.rctl.8; with the <literal>GENERIC</literal> kernel.
415	A new kernel configuration option,
416	<literal>RACCT_DISABLED</literal> has also been added.</para>
417
418      <para revision="284665" contrib="sponsor" sponsor="&ff;">The
419	<literal>GENERIC</literal> kernel configuration now includes
420	<literal>RACCT</literal> and <literal>RCTL</literal> by
421	default.</para>
422
423      <note>
424	<para>To enable <literal>RACCT</literal> and
425	  <literal>RCTL</literal> on a system using the
426	  <literal>GENERIC</literal> kernel configuration, add
427	  <literal>kern.racct.enable=1</literal> to
428	  &man.loader.conf.5;, and reboot the system.</para>
429      </note>
430    </sect2>
431  </sect1>
432
433  <sect1 xml:id="drivers">
434    <title>Devices and Drivers</title>
435
436    <para>This section covers changes and additions to devices and
437      device drivers since &release.prev;.</para>
438
439    <sect2 xml:id="drivers-device">
440      <title>Device Drivers</title>
441
442      <para revision="282199">The <literal>drm</literal> code has
443	been updated to match &linux; version 3.8.13.</para>
444
445      <para revision="281708">The &man.psm.4; driver has been updated
446	to include improved support for newer Synaptics&nbsp;&reg;
447	touchpads and the ClickPad&nbsp;&reg; mouse on newer
448	Lenovo&nbsp;&trade; laptops.</para>
449    </sect2>
450
451    <sect2 xml:id="drivers-storage">
452      <title>Storage Drivers</title>
453
454      <para revision="281957">The &man.hptnr.4; driver has been
455	updated to version 1.1.1.</para>
456    </sect2>
457
458    <sect2 xml:id="drivers-network">
459      <title>Network Drivers</title>
460
461      <para revision="274486">The &man.pfil.9; interface default hash
462	has been changed from <literal>Jenkins</literal> to
463	<literal>Murmur3</literal>, providing a 3-percent performance
464	increase in packets-per-second.</para>
465
466      <para revision="279157">The &man.ral.4; driver has been updated
467	to support the RT5390 and RT5392 chipsets.</para>
468
469      <para revision="284066" contrib="sponsor" sponsor="&yandex;">The
470	&man.gre.4; driver has been significantly overhauled, and has
471	been split into two separate modules, &man.gre.4; and
472	&man.me.4;.</para>
473
474      <para revision="284365">The &man.vxlan.4; driver has been added,
475	which creates a virtual Layer 2 (Ethernet) network overlaid in
476	a Layer 3 (IP/UDP) network.  The &man.vxlan.4; driver is
477	analogous to &man.vlan.4;, but is designed to be better suited
478	for large, multiple-tenant datacenter environments.</para>
479
480      <para revision="284499">The &man.cdce.4; driver has been updated
481	to include support for the RTL8153 chipset.</para>
482
483      <para revision="284555" contrib="sponsor"
484	sponsor="&solarflare;">The &man.sfxge.4; driver has been
485	updated to support Solarflare Flareon Ultra 7000-series
486	chipsets.</para>
487    </sect2>
488  </sect1>
489
490  <sect1 xml:id="hardware">
491    <title>Hardware Support</title>
492
493    <para>This section covers general hardware support for physical
494      machines, hypervisors, and virtualization environments, as well
495      as hardware changes and updates that do not otherwise fit in
496      other sections of this document.</para>
497
498    <sect2 xml:id="hardware-support">
499      <title>Hardware Support</title>
500
501      <para>&nbsp;</para>
502    </sect2>
503
504    <sect2 xml:id="hardware-virtualization">
505      <title>Virtualization Support</title>
506
507      <para revision="275273">The &man.virtio.console.4; driver has
508	been added, which provides an interface to VirtIO console
509	devices through a &man.tty.4; device.</para>
510
511      <para revision="276403">The &man.bhyve.8; hypervisor has been
512	updated to support &amd; processors with
513	<acronym>SVM</acronym> and <acronym>AMD-V</acronym> hardware
514	extensions.</para>
515
516      <para revision="280370">The &man.bhyve.8; hypervisor has been
517	updated to support <literal>DSM TRIM</literal> commands for
518	virtual <acronym>AHCI</acronym> disks.</para>
519
520      <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
521	Hyper-V&trade; drivers have been updated with several
522	enhancements:</para>
523
524      <itemizedlist>
525	<listitem>
526	  <para>The &man.hv.vmbus.4; driver now has multi-channel
527	    support.</para>
528	</listitem>
529
530	<listitem>
531	  <para>The &man.hv.storvsc.4; driver now has scatter/gather
532	    support, in addition to performance improvements.</para>
533	</listitem>
534
535	<listitem>
536	  <para>The &man.hv.kvp.4; driver has received several bug
537	    fixes.</para>
538	</listitem>
539      </itemizedlist>
540
541      <para revision="285236" contrib="sponsor" sponsor="&msostc;">The
542	&man.hv.netvsc.4; driver has been updated to support checksum
543	offloading and <acronym>TSO</acronym>.</para>
544    </sect2>
545
546    <sect2 xml:id="hardware-arm">
547      <title>ARM Support</title>
548
549      <para revision="278079" arch="arm">Support to turn off the
550	BeagleBone Black system with the &man.shutdown.8;
551	<literal>-p</literal> flag or by invoking &man.poweroff.8; has
552	been added.</para>
553
554      <para revision="278599" arch="arm">Support for the Exynos 5420
555	Octa system has been added.</para>
556
557      <para revision="278599" arch="arm">The <acronym>SMP</acronym>
558	option has been enabled for all Exynos 5 systems supported by
559	&os;.</para>
560
561      <para revision="278608">The <literal>bcm2835_cpufreq</literal>
562	driver has been added, which supports <acronym>CPU</acronym>
563	frequency and voltage control on the Raspberry Pi
564	<acronym>SOC</acronym>.</para>
565
566      <para revision="283500" arch="arm">Support for the Toradex
567	Apalis i.MX6 development board has been added.</para>
568
569      <para revision="283500" arch="arm">Audio transmission drivers
570	have been added for Digital Audio Multiplexer
571	(<acronym>AUDMUXM</acronym>), Smart Direct Memory Access
572	Controller (<acronym>SDMA</acronym>), and Syncronous Serial
573	Interface (<acronym>SSI</acronym>).</para>
574    </sect2>
575  </sect1>
576
577  <sect1 xml:id="storage">
578    <title>Storage</title>
579
580    <para>This section covers changes and additions to file systems
581      and other storage subsystems, both local and networked.</para>
582
583    <sect2 xml:id="storage-general">
584      <title>General Storage</title>
585
586      <para revision="279002" contrib="sponsor" sponsor="&ix;">The
587	&man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
588	replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
589	with a new mechanism that works for any port.</para>
590
591      <para revision="279055" contrib="sponsor" sponsor="&ix;">The
592	&man.ctld.8; utility has been updated to allow controlling
593	non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
594
595      <para revision="283223" contrib="sponsor" sponsor="&ff;">The
596	&man.autofs.5; subsystem has been updated to include a new
597	&man.auto.master.5; map, <literal>-media</literal>, which
598	allows automatically mounting removable media, such as
599	<acronym>CD</acronym> drives or <acronym>USB</acronym> flash
600	drives.</para>
601
602      <para revision="283242" contrib="sponsor" sponsor="&ff;">The
603	&man.autofs.5; subsystem has been updated to include a new
604	&man.auto.master.5; map, <literal>-noauto</literal>, which
605	handles &man.fstab.5; entries set to
606	<literal>noauto</literal>.</para>
607    </sect2>
608
609    <sect2 xml:id="storage-net">
610      <title>Networked Storage</title>
611
612      <para revision="274939" contrib="sponsor" sponsor="&ix;">The
613	&man.ctld.8; utility has been updated to include support for
614	registering <acronym>iSCSI</acronym> targets and portals on
615	<acronym>iSNS</acronym> servers.  This provides a mechanism
616	which allows <acronym>iSCSI</acronym> initiators to find
617	targets and portals without requiring active
618	discovery.</para>
619
620      <para revision="275249" contrib="sponsor" sponsor="&ff;">Support
621	for the <literal>timeo</literal>, <literal>actimeo</literal>,
622	<literal>noac</literal>, and <literal>proto</literal> options
623	have been added to &man.mount.nfs.8;.</para>
624    </sect2>
625
626    <sect2 xml:id="storage-zfs">
627      <title>ZFS</title>
628
629      <para revision="275490">A new tunable,
630	<literal>vfs.zfs.spa_slop_shift</literal>, has been added,
631	which controls how much space is reserved by default.</para>
632
633      <para revision="277583">The <literal>arc_meta_limit</literal>
634	statistics are now visible through the
635	<literal>kstat</literal> &man.sysctl.8;.  As a result of this
636	change, the <literal>vfs.zfs.arc_meta_used</literal>
637	&man.sysctl.8; has been removed, and replaced with the
638	<literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
639	&man.sysctl.8;.</para>
640    </sect2>
641
642    <sect2 xml:id="storage-geom">
643      <title>&man.geom.4;</title>
644
645      <para revision="275891" contrib="sponsor" sponsor="&ix;">The
646	&man.ctl.4; subsystem has been updated, increasing the ports
647	limit from <literal>128</literal> to <literal>256</literal>,
648	and <acronym>LUN</acronym> limit from <literal>256</literal>
649	to <literal>1024</literal>.</para>
650
651      <para revision="282861">Support for the
652	<literal>apple-boot</literal>, <literal>apple-hfs</literal>,
653	and <literal>apple-ufs</literal> <acronym>MBR</acronym>
654	partitioning schemes have been added to &man.gpart.8;.</para>
655    </sect2>
656  </sect1>
657
658  <sect1 xml:id="boot">
659    <title>Boot Loader Changes</title>
660
661    <para>This section covers the boot loader, boot menu, and other
662      boot-related changes.</para>
663
664    <sect2 xml:id="boot-loader">
665      <title>Boot Loader Changes</title>
666
667      <para revision="281323">Support for <literal>bzipfs</literal>
668	has been added to the <acronym>EFI</acronym> loader.</para>
669
670      <para revision="281843">The boot loader has been updated to
671	support entering the <acronym>GELI</acronym> passphrase before
672	loading the kernel.  To enable this behavior, add
673	<literal>geom_eli_passphrase_prompt="YES"</literal> to
674	&man.loader.conf.5;.</para>
675
676      <para revision="283262" contrib="sponsor" sponsor="&ff;">The
677	memory test run at boot time on &os;/&arch.amd64; platforms
678	has been disabled by default.</para>
679
680      <para revision="283972">A new &man.ttys.5; class,
681	<literal>3wire</literal>, has been added.  This is similar to
682	the existing terminal classes, but does not have a defined
683	baudrate.</para>
684
685      <para revision="284775" contrib="sponsor" sponsor="&ff;"
686	arch="arm">The &man.ttys.5; file for &os;/&arch.arm; has been
687	updated to enable <filename>ttyu1</filename>,
688	<filename>ttyu2</filename>, and <filename>ttyu3</filename> by
689	default, if the callin port is an active console port.</para>
690    </sect2>
691
692    <sect2 xml:id="boot-menu">
693      <title>Boot Menu Changes</title>
694
695      <para>&nbsp;</para>
696    </sect2>
697  </sect1>
698
699  <sect1 xml:id="network">
700    <title>Networking</title>
701
702    <para>This section describes changes that affect networking in
703      &os;.</para>
704
705    <sect2 xml:id="network-protocols">
706      <title>Network Procols</title>
707
708      <para>&nbsp;</para>
709    </sect2>
710  </sect1>
711
712  <sect1 xml:id="ports">
713    <title>Ports Collection and Package Infrastructure</title>
714
715    <para>This section covers changes to the &os;&nbsp;Ports
716      Collection, package infrastructure, and package maintenance and
717      installation tools.</para>
718
719    <sect2 xml:id="ports-infrastructure">
720      <title>Infrastructure Changes</title>
721
722      <para>&nbsp;</para>
723    </sect2>
724
725    <sect2 xml:id="ports-packages ">
726      <title>Packaging Changes</title>
727
728      <para>&nbsp;</para>
729    </sect2>
730  </sect1>
731
732  <sect1 xml:id="doc">
733    <title>Documentation</title>
734
735    <para>This section covers changes to the &os;&nbsp;Documentation
736      Project sources and toolchain.</para>
737
738    <sect2 xml:id="doc-sources">
739      <title>Documentation Source Changes</title>
740
741      <para>&nbsp;</para>
742    </sect2>
743
744    <sect2 xml:id="doc-toolchain">
745      <title>Documentation Toolchain Changes</title>
746
747      <para>&nbsp;</para>
748    </sect2>
749  </sect1>
750
751  <sect1 xml:id="releng">
752    <title>Release Engineering and Integration</title>
753
754    <para>This section convers changes that are specific to the
755      &os;&nbsp;Release Engineering processes.</para>
756
757    <sect2 xml:id="releng-changes">
758      <title>Integration Changes</title>
759
760      <para revision="283161" contrib="sponsor" sponsor="&ff;">The
761	Release Engineering build tools have been updated to support
762	building &os;/&arch.arm; images without external utilities for
763	supported boards where a corresponding
764	<literal>u-boot</literal> port exists in the Ports
765	Collection.</para>
766
767      <para revision="283548" contrib="sponsor" sponsor="&ff;">The
768	&os;/&arch.i386; memory stick installation images are now
769	created using the &man.mkimg.1; utility, matching the way
770	the &os;/&arch.amd64; images are created.</para>
771    </sect2>
772  </sect1>
773</article>
774