article.xml revision 285583
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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 285583 2015-07-14 21:46:03Z 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    </sect2>
483  </sect1>
484
485  <sect1 xml:id="hardware">
486    <title>Hardware Support</title>
487
488    <para>This section covers general hardware support for physical
489      machines, hypervisors, and virtualization environments, as well
490      as hardware changes and updates that do not otherwise fit in
491      other sections of this document.</para>
492
493    <sect2 xml:id="hardware-support">
494      <title>Hardware Support</title>
495
496      <para>&nbsp;</para>
497    </sect2>
498
499    <sect2 xml:id="hardware-virtualization">
500      <title>Virtualization Support</title>
501
502      <para revision="275273">The &man.virtio.console.4; driver has
503	been added, which provides an interface to VirtIO console
504	devices through a &man.tty.4; device.</para>
505
506      <para revision="276403">The &man.bhyve.8; hypervisor has been
507	updated to support &amd; processors with
508	<acronym>SVM</acronym> and <acronym>AMD-V</acronym> hardware
509	extensions.</para>
510
511      <para revision="280370">The &man.bhyve.8; hypervisor has been
512	updated to support <literal>DSM TRIM</literal> commands for
513	virtual <acronym>AHCI</acronym> disks.</para>
514
515      <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
516	Hyper-V&trade; drivers have been updated with several
517	enhancements:</para>
518
519      <itemizedlist>
520	<listitem>
521	  <para>The &man.hv.vmbus.4; driver now has multi-channel
522	    support.</para>
523	</listitem>
524
525	<listitem>
526	  <para>The &man.hv.storvsc.4; driver now has scatter/gather
527	    support, in addition to performance improvements.</para>
528	</listitem>
529
530	<listitem>
531	  <para>The &man.hv.kvp.4; driver has received several bug
532	    fixes.</para>
533	</listitem>
534      </itemizedlist>
535
536      <para revision="285236" contrib="sponsor" sponsor="&msostc;">The
537	&man.hv.netvsc.4; driver has been updated to support checksum
538	offloading and <acronym>TSO</acronym>.</para>
539    </sect2>
540
541    <sect2 xml:id="hardware-arm">
542      <title>ARM Support</title>
543
544      <para revision="278079" arch="arm">Support to turn off the
545	BeagleBone Black system with the &man.shutdown.8;
546	<literal>-p</literal> flag or by invoking &man.poweroff.8; has
547	been added.</para>
548
549      <para revision="278599" arch="arm">Support for the Exynos 5420
550	Octa system has been added.</para>
551
552      <para revision="278599" arch="arm">The <acronym>SMP</acronym>
553	option has been enabled for all Exynos 5 systems supported by
554	&os;.</para>
555
556      <para revision="278608">The <literal>bcm2835_cpufreq</literal>
557	driver has been added, which supports <acronym>CPU</acronym>
558	frequency and voltage control on the Raspberry Pi
559	<acronym>SOC</acronym>.</para>
560
561      <para revision="283500" arch="arm">Support for the Toradex
562	Apalis i.MX6 development board has been added.</para>
563
564      <para revision="283500" arch="arm">Audio transmission drivers
565	have been added for Digital Audio Multiplexer
566	(<acronym>AUDMUXM</acronym>), Smart Direct Memory Access
567	Controller (<acronym>SDMA</acronym>), and Syncronous Serial
568	Interface (<acronym>SSI</acronym>).</para>
569    </sect2>
570  </sect1>
571
572  <sect1 xml:id="storage">
573    <title>Storage</title>
574
575    <para>This section covers changes and additions to file systems
576      and other storage subsystems, both local and networked.</para>
577
578    <sect2 xml:id="storage-general">
579      <title>General Storage</title>
580
581      <para revision="279002" contrib="sponsor" sponsor="&ix;">The
582	&man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
583	replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
584	with a new mechanism that works for any port.</para>
585
586      <para revision="279055" contrib="sponsor" sponsor="&ix;">The
587	&man.ctld.8; utility has been updated to allow controlling
588	non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>
589
590      <para revision="283223" contrib="sponsor" sponsor="&ff;">The
591	&man.autofs.5; subsystem has been updated to include a new
592	&man.auto.master.5; map, <literal>-media</literal>, which
593	allows automatically mounting removable media, such as
594	<acronym>CD</acronym> drives or <acronym>USB</acronym> flash
595	drives.</para>
596
597      <para revision="283242" contrib="sponsor" sponsor="&ff;">The
598	&man.autofs.5; subsystem has been updated to include a new
599	&man.auto.master.5; map, <literal>-noauto</literal>, which
600	handles &man.fstab.5; entries set to
601	<literal>noauto</literal>.</para>
602    </sect2>
603
604    <sect2 xml:id="storage-net">
605      <title>Networked Storage</title>
606
607      <para revision="274939" contrib="sponsor" sponsor="&ix;">The
608	&man.ctld.8; utility has been updated to include support for
609	registering <acronym>iSCSI</acronym> targets and portals on
610	<acronym>iSNS</acronym> servers.  This provides a mechanism
611	which allows <acronym>iSCSI</acronym> initiators to find
612	targets and portals without requiring active
613	discovery.</para>
614
615      <para revision="275249" contrib="sponsor" sponsor="&ff;">Support
616	for the <literal>timeo</literal>, <literal>actimeo</literal>,
617	<literal>noac</literal>, and <literal>proto</literal> options
618	have been added to &man.mount.nfs.8;.</para>
619    </sect2>
620
621    <sect2 xml:id="storage-zfs">
622      <title>ZFS</title>
623
624      <para revision="275490">A new tunable,
625	<literal>vfs.zfs.spa_slop_shift</literal>, has been added,
626	which controls how much space is reserved by default.</para>
627
628      <para revision="277583">The <literal>arc_meta_limit</literal>
629	statistics are now visible through the
630	<literal>kstat</literal> &man.sysctl.8;.  As a result of this
631	change, the <literal>vfs.zfs.arc_meta_used</literal>
632	&man.sysctl.8; has been removed, and replaced with the
633	<literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
634	&man.sysctl.8;.</para>
635    </sect2>
636
637    <sect2 xml:id="storage-geom">
638      <title>&man.geom.4;</title>
639
640      <para revision="275891" contrib="sponsor" sponsor="&ix;">The
641	&man.ctl.4; subsystem has been updated, increasing the ports
642	limit from <literal>128</literal> to <literal>256</literal>,
643	and <acronym>LUN</acronym> limit from <literal>256</literal>
644	to <literal>1024</literal>.</para>
645
646      <para revision="282861">Support for the
647	<literal>apple-boot</literal>, <literal>apple-hfs</literal>,
648	and <literal>apple-ufs</literal> <acronym>MBR</acronym>
649	partitioning schemes have been added to &man.gpart.8;.</para>
650    </sect2>
651  </sect1>
652
653  <sect1 xml:id="boot">
654    <title>Boot Loader Changes</title>
655
656    <para>This section covers the boot loader, boot menu, and other
657      boot-related changes.</para>
658
659    <sect2 xml:id="boot-loader">
660      <title>Boot Loader Changes</title>
661
662      <para revision="281323">Support for <literal>bzipfs</literal>
663	has been added to the <acronym>EFI</acronym> loader.</para>
664
665      <para revision="281843">The boot loader has been updated to
666	support entering the <acronym>GELI</acronym> passphrase before
667	loading the kernel.  To enable this behavior, add
668	<literal>geom_eli_passphrase_prompt="YES"</literal> to
669	&man.loader.conf.5;.</para>
670
671      <para revision="283262" contrib="sponsor" sponsor="&ff;">The
672	memory test run at boot time on &os;/&arch.amd64; platforms
673	has been disabled by default.</para>
674
675      <para revision="283972">A new &man.ttys.5; class,
676	<literal>3wire</literal>, has been added.  This is similar to
677	the existing terminal classes, but does not have a defined
678	baudrate.</para>
679
680      <para revision="284775" contrib="sponsor" sponsor="&ff;"
681	arch="arm">The &man.ttys.5; file for &os;/&arch.arm; has been
682	updated to enable <filename>ttyu1</filename>,
683	<filename>ttyu2</filename>, and <filename>ttyu3</filename> by
684	default, if the callin port is an active console port.</para>
685    </sect2>
686
687    <sect2 xml:id="boot-menu">
688      <title>Boot Menu Changes</title>
689
690      <para>&nbsp;</para>
691    </sect2>
692  </sect1>
693
694  <sect1 xml:id="network">
695    <title>Networking</title>
696
697    <para>This section describes changes that affect networking in
698      &os;.</para>
699
700    <sect2 xml:id="network-protocols">
701      <title>Network Procols</title>
702
703      <para>&nbsp;</para>
704    </sect2>
705  </sect1>
706
707  <sect1 xml:id="ports">
708    <title>Ports Collection and Package Infrastructure</title>
709
710    <para>This section covers changes to the &os;&nbsp;Ports
711      Collection, package infrastructure, and package maintenance and
712      installation tools.</para>
713
714    <sect2 xml:id="ports-infrastructure">
715      <title>Infrastructure Changes</title>
716
717      <para>&nbsp;</para>
718    </sect2>
719
720    <sect2 xml:id="ports-packages ">
721      <title>Packaging Changes</title>
722
723      <para>&nbsp;</para>
724    </sect2>
725  </sect1>
726
727  <sect1 xml:id="doc">
728    <title>Documentation</title>
729
730    <para>This section covers changes to the &os;&nbsp;Documentation
731      Project sources and toolchain.</para>
732
733    <sect2 xml:id="doc-sources">
734      <title>Documentation Source Changes</title>
735
736      <para>&nbsp;</para>
737    </sect2>
738
739    <sect2 xml:id="doc-toolchain">
740      <title>Documentation Toolchain Changes</title>
741
742      <para>&nbsp;</para>
743    </sect2>
744  </sect1>
745
746  <sect1 xml:id="releng">
747    <title>Release Engineering and Integration</title>
748
749    <para>This section convers changes that are specific to the
750      &os;&nbsp;Release Engineering processes.</para>
751
752    <sect2 xml:id="releng-changes">
753      <title>Integration Changes</title>
754
755      <para revision="283161" contrib="sponsor" sponsor="&ff;">The
756	Release Engineering build tools have been updated to support
757	building &os;/&arch.arm; images without external utilities for
758	supported boards where a corresponding
759	<literal>u-boot</literal> port exists in the Ports
760	Collection.</para>
761
762      <para revision="283548" contrib="sponsor" sponsor="&ff;">The
763	&os;/&arch.i386; memory stick installation images are now
764	created using the &man.mkimg.1; utility, matching the way
765	the &os;/&arch.amd64; images are created.</para>
766    </sect2>
767  </sect1>
768</article>
769