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5 %release;
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11<article xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
12<info>
13  <title>&os; &release.current; Release Notes</title>
14
15  <author>
16    <orgname>The &os; Project</orgname>
17  </author>
18
19  <pubdate>$FreeBSD: stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml 267592 2014-06-17 20:08:17Z gjb $</pubdate>
20
21  <copyright>
22    <year>2000</year>
23    <year>2001</year>
24    <year>2002</year>
25    <year>2003</year>
26    <year>2004</year>
27    <year>2005</year>
28    <year>2006</year>
29    <year>2007</year>
30    <year>2008</year>
31    <year>2009</year>
32    <year>2010</year>
33    <year>2011</year>
34    <year>2012</year>
35    <year>2013</year>
36    <year>2014</year>
37    <holder role="mailto:doc@FreeBSD.org">The &os; Documentation Project</holder>
38  </copyright>
39
40  <legalnotice xml:id="trademarks" role="trademarks">
41    &tm-attrib.freebsd;
42    &tm-attrib.ibm;
43    &tm-attrib.ieee;
44    &tm-attrib.intel;
45    &tm-attrib.sparc;
46    &tm-attrib.general;
47  </legalnotice>
48
49  <abstract>
50    <para>The release notes for &os; &release.current; contain
51      a summary of the changes made to the &os; base system on the
52      &release.branch; development line.  This document lists
53      applicable security advisories that were issued since the last
54      release, as well as significant changes to the &os; kernel and
55      userland.  Some brief remarks on upgrading are also
56      presented.</para>
57  </abstract>
58</info>
59
60<sect1 xml:id="intro">
61  <title>Introduction</title>
62
63  <para>This document contains the release notes for &os;
64    &release.current;.  It describes recently added, changed, or
65    deleted features of &os;.  It also provides some notes on
66    upgrading from previous versions of &os;.</para>
67
68  <para releasetype="current">The &release.type; distribution to which
69    these release notes apply represents the latest point along the
70    &release.branch; development branch since &release.branch; was
71    created.  Information regarding pre-built, binary &release.type;
72    distributions along this branch can be found at <uri
73      xlink:href="&release.url;">&release.url;</uri>.</para>
74
75  <para releasetype="snapshot">The &release.type; distribution to
76    which these release notes apply represents a point along the
77    &release.branch; development branch between &release.prev; and the
78    future &release.next;.  Information regarding pre-built, binary
79    &release.type; distributions along this branch can be found at
80    <uri xlink:href="&release.url;">&release.url;</uri>.</para>
81
82  <para releasetype="release">This distribution of &os;
83    &release.current; is a &release.type; distribution.  It can be
84    found at <uri xlink:href="&release.url;">&release.url;</uri> or
85    any of its mirrors.  More information on obtaining this (or other)
86    &release.type; distributions of &os; can be found in the <link
87      xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
88	&os;</quote> appendix</link> to the <link
89      xlink:href="&url.books.handbook;/">&os; Handbook</link>.</para>
90
91  <para>All users are encouraged to consult the release errata before
92    installing &os;.  The errata document is updated with
93    <quote>late-breaking</quote> information discovered late in the
94    release cycle or after the release.  Typically, it contains
95    information on known bugs, security advisories, and corrections to
96    documentation.  An up-to-date copy of the errata for &os;
97    &release.current; can be found on the &os; Web site.</para>
98</sect1>
99
100<sect1 xml:id="new">
101  <title>What's New</title>
102
103  <para>This section describes the most user-visible new or changed
104    features in &os; since &release.prev;.</para>
105
106  <para>Typical release note items document recent security advisories
107    issued after &release.prev;, new drivers or hardware support, new
108    commands or options, major bug fixes, or contributed software
109    upgrades.  They may also list changes to major ports/packages or
110    release engineering practices.  Clearly the release notes cannot
111    list every single change made to &os; between releases; this
112    document focuses primarily on security advisories, user-visible
113    changes, and major architectural improvements.</para>
114
115  <sect2 xml:id="security">
116    <title>Security Advisories</title>
117
118    <para>&nbsp;</para>
119
120  </sect2>
121
122  <sect2 xml:id="kernel">
123    <title>Kernel Changes</title>
124
125    <para revision="260338">The <literal>vfs.zfs.zio.use_uma</literal>
126      &man.sysctl.8; has been re-enabled.  On multi-CPU machines with
127      enough RAM, this can easily double &man.zfs.8; performance or
128      reduce CPU usage in half.  It was originally disabled due to
129      memory and <acronym>KVA</acronym> exhaustion problem reports,
130      which should be resolved due to several change in the VM
131      subsystem.</para>
132
133    <para revision="260385">The &man.geom.4; RAID driver has been
134      updated to support unmapped I/O.</para>
135
136    <para revision="260431">A new &man.sysctl.8;,
137      <literal>kern.panic_reboot_wait_time</literal>, has been added,
138      which allows controlling how long the system will wait after
139      &man.panic.9; before rebooting.</para>
140
141    <para revision="265388">The &man.mpr.4; device has been added,
142      providing support for LSI Fusion-MPT 3 12Gb SCSI/SATA
143      controllers.</para>
144
145    <para revision="265922">The &man.mrsas.4; driver has been added,
146      providing support for LSI MegaRAID SAS controllers.  The
147      &man.mfi.4; driver will attach to the controller, by default.
148      To enable &man.mrsas.4; add
149      <literal>hw.mfi.mrsas_enable=1</literal> to
150      <filename>/boot/loader.conf</filename>, which turns off
151      &man.mfi.4; device probing.</para>
152
153    <note>
154      <para>At this time, the &man.mfiutil.8; utility and
155	the &os; version of
156	<application>MegaCLI</application> and
157	<application>StorCli</application> do not work with
158	&man.mrsas.4;.</para>
159    </note>
160
161    <para revision="266165">A kernel bug that inhibited proper
162      functionality of the <literal>dev.cpu.0.freq</literal>
163      &man.sysctl.8; on &intel; processors with Turbo
164      Boost&nbsp;&trade; enabled has been fixed.</para>
165
166    <sect3 xml:id="kernel-virtualization">
167      <title>Virtualization support</title>
168
169      <para>&nbsp;</para>
170
171    </sect3>
172
173    <sect3 xml:id="kernel-arm">
174      <title>ARM support</title>
175
176      <para>&nbsp;</para>
177
178    </sect3>
179
180    <sect3 xml:id="boot">
181      <title>Boot Loader Changes</title>
182
183      <para>&nbsp;</para>
184
185    </sect3>
186
187    <sect3 xml:id="proc">
188      <title>Hardware Support</title>
189
190      <para>&nbsp;</para>
191
192      <sect4 xml:id="mm">
193	<title>Multimedia Support</title>
194
195	<para>&nbsp;</para>
196
197      </sect4>
198
199      <sect4 xml:id="net-if">
200	<title>Network Interface Support</title>
201
202	<para>&nbsp;</para>
203
204      </sect4>
205    </sect3>
206
207    <sect3 xml:id="net-proto">
208      <title>Network Protocols</title>
209
210      <para>&nbsp;</para>
211
212    </sect3>
213
214    <sect3 xml:id="disks">
215      <title>Disks and Storage</title>
216
217      <para>&nbsp;</para>
218
219    </sect3>
220
221    <sect3 xml:id="fs">
222      <title>File Systems</title>
223
224      <para>&nbsp;</para>
225
226    </sect3>
227  </sect2>
228
229  <sect2 xml:id="userland">
230    <title>Userland Changes</title>
231
232    <para revision="260177">A new flag is added to &man.camcontrol.8;,
233      <literal>-b</literal>, which outputs the existing buses and
234      their parents.</para>
235
236    <para revision="266279">The &man.ps.1; utility has been
237      updated to include the <literal>-J</literal> flag, used to
238      filter output by matching &man.jail.8; IDs and names.
239      Additionally, argument <literal>0</literal> can be used to
240      <literal>-J</literal> to only list processes running on the
241      host system.</para>
242
243    <para revision="266280">The &man.top.1; utility has been updated
244      to filter by &man.jail.8; ID or name, in followup to the
245      &man.ps.1; change in <literal>r265229</literal>.</para>
246
247    <para revision="266890">The &man.pmcstat.8; utility has been
248      updated to include a new flag, <literal>-l</literal>, which
249      ends event collection after the specified number of
250      seconds.</para>
251
252    <para revision="267113">The default &man.newsyslog.conf.5; now
253      includes files in the
254      <filename>/etc/newsyslog.conf.d/</filename> and
255      <filename>/usr/local/etc/newsyslog.conf.d/</filename>
256      directories by default for &man.newsyslog.8;.</para>
257
258    <para revision="267236">A new flag, <quote>onifconsole</quote> has
259      been added to <filename>/etc/ttys</filename>.  This allows the
260      system to provide a login prompt via serial console if the
261      device is an active kernel console, otherwise it is equivalent
262      to <literal>off</literal>.</para>
263
264    <sect3 xml:id="rc-scripts">
265      <title><filename>/etc/rc.d</filename> Scripts</title>
266
267      <para>&nbsp;</para>
268
269    </sect3>
270  </sect2>
271
272  <sect2 xml:id="contrib">
273    <title>Contributed Software</title>
274
275    <para revision="264377"><application>OpenSSH</application> has
276      been updated to version 6.6p1.</para>
277
278    <para revision="266692"><application>Sendmail</application>
279      has been updated to 8.14.9.</para>
280
281    <para revision="267258"><application>OpenSSL</application> has
282      been updated to version 1.0.1h.</para>
283  </sect2>
284
285  <sect2 xml:id="ports">
286    <title>Ports/Packages Collection Infrastructure</title>
287
288    <para>&nbsp;</para>
289
290  </sect2>
291
292  <sect2 xml:id="releng">
293    <title>Release Engineering and Integration</title>
294
295    <para>&nbsp;</para>
296
297  </sect2>
298
299  <sect2 xml:id="doc">
300    <title>Documentation</title>
301
302    <para>&nbsp;</para>
303
304  </sect2>
305</sect1>
306
307<sect1 xml:id="upgrade">
308  <title>Upgrading from Previous Releases of &os;</title>
309
310  <para arch="amd64,i386">Binary upgrades between RELEASE versions
311    (and snapshots of the various security branches) are supported
312    using the &man.freebsd-update.8; utility.  The binary upgrade
313    procedure will update unmodified userland utilities, as well as
314    unmodified GENERIC or SMP kernels distributed as a part of an
315    official &os; release.  The &man.freebsd-update.8; utility
316    requires that the host being upgraded have Internet
317    connectivity.</para>
318
319  <para>Source-based upgrades (those based on recompiling the &os;
320    base system from source code) from previous versions are
321    supported, according to the instructions in
322    <filename>/usr/src/UPDATING</filename>.</para>
323
324  <important>
325    <para>Upgrading &os; should only be attempted after
326      backing up <emphasis>all</emphasis> data and configuration
327      files.</para>
328  </important>
329</sect1>
330</article>
331