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<article xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
<info>
  <title>&os; &release.current; Release Notes</title>

  <author>
    <orgname>The &os; Project</orgname>
  </author>

  <pubdate>$FreeBSD$</pubdate>

  <copyright>
    <year>2000</year>
    <year>2001</year>
    <year>2002</year>
    <year>2003</year>
    <year>2004</year>
    <year>2005</year>
    <year>2006</year>
    <year>2007</year>
    <year>2008</year>
    <year>2009</year>
    <year>2010</year>
    <year>2011</year>
    <year>2012</year>
    <year>2013</year>
    <year>2014</year>
    <holder role="mailto:doc@FreeBSD.org">The &os; Documentation Project</holder>
  </copyright>

  <legalnotice xml:id="trademarks" role="trademarks">
    &tm-attrib.freebsd;
    &tm-attrib.ibm;
    &tm-attrib.ieee;
    &tm-attrib.intel;
    &tm-attrib.sparc;
    &tm-attrib.general;
  </legalnotice>

  <abstract>
    <para>The release notes for &os; &release.current; contain
      a summary of the changes made to the &os; base system on the
      &release.branch; development line.  This document lists
      applicable security advisories that were issued since the last
      release, as well as significant changes to the &os; kernel and
      userland.  Some brief remarks on upgrading are also
      presented.</para>
  </abstract>
</info>

<sect1 xml:id="intro">
  <title>Introduction</title>

  <para>This document contains the release notes for &os;
    &release.current;.  It describes recently added, changed, or
    deleted features of &os;.  It also provides some notes on
    upgrading from previous versions of &os;.</para>

  <para releasetype="current">The &release.type; distribution to which
    these release notes apply represents the latest point along the
    &release.branch; development branch since &release.branch; was
    created.  Information regarding pre-built, binary &release.type;
    distributions along this branch can be found at <uri
      xlink:href="&release.url;">&release.url;</uri>.</para>

  <para releasetype="snapshot">The &release.type; distribution to
    which these release notes apply represents a point along the
    &release.branch; development branch between &release.prev; and the
    future &release.next;.  Information regarding pre-built, binary
    &release.type; distributions along this branch can be found at
    <uri xlink:href="&release.url;">&release.url;</uri>.</para>

  <para releasetype="release">This distribution of &os;
    &release.current; is a &release.type; distribution.  It can be
    found at <uri xlink:href="&release.url;">&release.url;</uri> or
    any of its mirrors.  More information on obtaining this (or other)
    &release.type; distributions of &os; can be found in the <link
      xlink:href="&url.books.handbook;/mirrors.html"><quote>Obtaining
	&os;</quote> appendix</link> to the <link
      xlink:href="&url.books.handbook;/">&os; Handbook</link>.</para>

  <para>All users are encouraged to consult the release errata before
    installing &os;.  The errata document is updated with
    <quote>late-breaking</quote> information discovered late in the
    release cycle or after the release.  Typically, it contains
    information on known bugs, security advisories, and corrections to
    documentation.  An up-to-date copy of the errata for &os;
    &release.current; can be found on the &os; Web site.</para>
</sect1>

<sect1 xml:id="new">
  <title>What's New</title>

  <para>This section describes the most user-visible new or changed
    features in &os; since &release.prev;.</para>

  <para>Typical release note items document recent security advisories
    issued after &release.prev;, new drivers or hardware support, new
    commands or options, major bug fixes, or contributed software
    upgrades.  They may also list changes to major ports/packages or
    release engineering practices.  Clearly the release notes cannot
    list every single change made to &os; between releases; this
    document focuses primarily on security advisories, user-visible
    changes, and major architectural improvements.</para>

  <sect2 xml:id="security">
    <title>Security Advisories</title>

    <para>&nbsp;</para>

  </sect2>

  <sect2 xml:id="kernel">
    <title>Kernel Changes</title>

    <para revision="260338">The <literal>vfs.zfs.zio.use_uma</literal>
      &man.sysctl.8; has been re-enabled.  On multi-CPU machines with
      enough RAM, this can easily double &man.zfs.8; performance or
      reduce CPU usage in half.  It was originally disabled due to
      memory and <acronym>KVA</acronym> exhaustion problem reports,
      which should be resolved due to several change in the VM
      subsystem.</para>

    <para revision="260385">The &man.geom.4; RAID driver has been
      updated to support unmapped I/O.</para>

    <para revision="260431">A new &man.sysctl.8;,
      <literal>kern.panic_reboot_wait_time</literal>, has been added,
      which allows controlling how long the system will wait after
      &man.panic.9; before rebooting.</para>

    <para revision="265388">The &man.mpr.4; device has been added,
      providing support for LSI Fusion-MPT 3 12Gb SCSI/SATA
      controllers.</para>

    <para revision="265922">The &man.mrsas.4; driver has been added,
      providing support for LSI MegaRAID SAS controllers.  The
      &man.mfi.4; driver will attach to the controller, by default.
      To enable &man.mrsas.4; add
      <literal>hw.mfi.mrsas_enable=1</literal> to
      <filename>/boot/loader.conf</filename>, which turns off
      &man.mfi.4; device probing.</para>

    <note>
      <para>At this time, the &man.mfiutil.8; utility and
	the &os; version of
	<application>MegaCLI</application> and
	<application>StorCli</application> do not work with
	&man.mrsas.4;.</para>
    </note>

    <para revision="266165">A kernel bug that inhibited proper
      functionality of the <literal>dev.cpu.0.freq</literal>
      &man.sysctl.8; on &intel; processors with Turbo
      Boost&nbsp;&trade; enabled has been fixed.</para>

    <sect3 xml:id="kernel-virtualization">
      <title>Virtualization support</title>

      <para>&nbsp;</para>

    </sect3>

    <sect3 xml:id="kernel-arm">
      <title>ARM support</title>

      <para>&nbsp;</para>

    </sect3>

    <sect3 xml:id="boot">
      <title>Boot Loader Changes</title>

      <para>&nbsp;</para>

    </sect3>

    <sect3 xml:id="proc">
      <title>Hardware Support</title>

      <para>&nbsp;</para>

      <sect4 xml:id="mm">
	<title>Multimedia Support</title>

	<para>&nbsp;</para>

      </sect4>

      <sect4 xml:id="net-if">
	<title>Network Interface Support</title>

	<para>&nbsp;</para>

      </sect4>
    </sect3>

    <sect3 xml:id="net-proto">
      <title>Network Protocols</title>

      <para>&nbsp;</para>

    </sect3>

    <sect3 xml:id="disks">
      <title>Disks and Storage</title>

      <para>&nbsp;</para>

    </sect3>

    <sect3 xml:id="fs">
      <title>File Systems</title>

      <para>&nbsp;</para>

    </sect3>
  </sect2>

  <sect2 xml:id="userland">
    <title>Userland Changes</title>

    <para revision="260177">A new flag is added to &man.camcontrol.8;,
      <literal>-b</literal>, which outputs the existing buses and
      their parents.</para>

    <para revision="266279">The &man.ps.1; utility has been
      updated to include the <literal>-J</literal> flag, used to
      filter output by matching &man.jail.8; IDs and names.
      Additionally, argument <literal>0</literal> can be used to
      <literal>-J</literal> to only list processes running on the
      host system.</para>

    <para revision="266280">The &man.top.1; utility has been updated
      to filter by &man.jail.8; ID or name, in followup to the
      &man.ps.1; change in <literal>r265229</literal>.</para>

    <para revision="266890">The &man.pmcstat.8; utility has been
      updated to include a new flag, <literal>-l</literal>, which
      adds event collection after the specified number of
      seconds.</para>

    <para revision="267113">The default &man.newsyslog.conf.5; now
      includes files in the
      <filename>/etc/newsyslog.conf.d/</filename> and
      <filename>/usr/local/etc/newsyslog.conf.d/</filename>
      directories by default for &man.newsyslog.8;.</para>

    <para revision="267236">A new flag, <quote>onifconsole</quote> has
      been added to <filename>/etc/ttys</filename>.  This allows the
      system to provide a login prompt via serial console if the
      device is an active kernel console, otherwise it is equivalent
      to <literal>off</literal>.</para>

    <sect3 xml:id="rc-scripts">
      <title><filename>/etc/rc.d</filename> Scripts</title>

      <para>&nbsp;</para>

    </sect3>
  </sect2>

  <sect2 xml:id="contrib">
    <title>Contributed Software</title>

    <para revision="264377"><application>OpenSSH</application> has
      been updated to version 6.6p1.</para>

    <para revision="266692"><application>Sendmail</application>
      has been updated to 8.14.9.</para>

    <para revision="267258"><application>OpenSSL</application> has
      been updated to version 1.0.1h.</para>
  </sect2>

  <sect2 xml:id="ports">
    <title>Ports/Packages Collection Infrastructure</title>

    <para>&nbsp;</para>

  </sect2>

  <sect2 xml:id="releng">
    <title>Release Engineering and Integration</title>

    <para>&nbsp;</para>

  </sect2>

  <sect2 xml:id="doc">
    <title>Documentation</title>

    <para>&nbsp;</para>

  </sect2>
</sect1>

<sect1 xml:id="upgrade">
  <title>Upgrading from Previous Releases of &os;</title>

  <para arch="amd64,i386">Binary upgrades between RELEASE versions
    (and snapshots of the various security branches) are supported
    using the &man.freebsd-update.8; utility.  The binary upgrade
    procedure will update unmodified userland utilities, as well as
    unmodified GENERIC or SMP kernels distributed as a part of an
    official &os; release.  The &man.freebsd-update.8; utility
    requires that the host being upgraded have Internet
    connectivity.</para>

  <para>Source-based upgrades (those based on recompiling the &os;
    base system from source code) from previous versions are
    supported, according to the instructions in
    <filename>/usr/src/UPDATING</filename>.</para>

  <important>
    <para>Upgrading &os; should only be attempted after
      backing up <emphasis>all</emphasis> data and configuration
      files.</para>
  </important>
</sect1>
</article>