en_US.ISO8859-1/relnotes/article.xml

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<!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN"
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<!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN" "release.ent">
 %release;
<!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN" "sponsor.ent">
 %sponsor;
<!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN" "vendor.ent">
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<!ENTITY security SYSTEM "../../share/xml/security.xml">
<!ENTITY errata SYSTEM "../../share/xml/errata.xml">
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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: stable/10/release/doc/en_US.ISO8859-1/relnotes/article.xml 285341 2015-07-09 22:44:28Z gjb $</pubdate>

    <!-- Last rev: 284813 -->

    <copyright>
      <year>2015</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>

    <para>This document 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>
  </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 <filename>GENERIC</filename> kernel 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>

  <sect1 xml:id="security-errata">
    <title>Security and Errata</title>

    <para>This section lists the various Security Advisories and
      Errata Notices since &release.prev;.</para>

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

      &security;
    </sect2>

    <sect2 xml:id="errata">
      <title>Errata Notices</title>

      &errata;
    </sect2>
  </sect1>

  <sect1 xml:id="userland">
    <title>Userland</title>

    <para>This section covers changes and additions to userland
      applications, contributed software, and system utilities.</para>

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

      <para revision="276991">The &man.termcap.5; file is installed
	as-is from sources, instead of reordering, creating
	<filename>/etc/termcap.db</filename> by default, providing
	a performance improvements to applications that use the
	&man.termcap.5; database, such as &man.vi.1; and
	&man.ncurses.3;.</para>
    </sect2>

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

      <para revision="275040">A new utility, &man.dpv.1;, has been
	added to the base system, providing a &man.dialog.1;-style
	progress view from one or more input streams.  A corresponding
	library, &man.dpv.3;, has also been added.</para>

      <para revision="275945">The &man.elfdump.1; utility has been
	updated to support capability mode provided by
	&man.capsicum.4;.</para>

      <para revision="277434" contrib="sponsor" sponsor="&ff;">The
	&man.fstyp.8; utility has been added, which is used to
	determine the filesystem on a specified device.</para>

      <para revision="281044">A regression in the &man.libarchive.3;
	library that would prevent a directory from being included in
	the archive when <literal>--one-file-system</literal> is used
	has been fixed.</para>

      <para revision="281161" contrib="sponsor"
	sponsor="&limelight;">A new flag, <literal>-R</literal>, has
	been added to the &man.netstat.8; utility, which is used to
	dump <acronym>RSS</acronym>/flow information.</para>

      <para revision="281936" contrib="sponsor" sponsor="&ff;">The
	&man.ar.1; utility has been updated to set
	<literal>ARCHIVE_EXTRACT_SECURE_SYMLINKS</literal> and
	<literal>ARCHIVE_EXTRACT_SECURE_NODOTDOT</literal> to disallow
	directory traversal when extracting an archive, similar to
	&man.tar.1;.</para>

      <para revision="282278">A race condition in &man.wc.1; that
	would cause final results to be sent to &man.stderr.4; when
	receiving the <literal>SIGINFO</literal> signal has been
	fixed.</para>

      <para revision="282870" contrib="sponsor"
	sponsor="&scaleengine;">The &man.freebsd-update.8; utility has
	been updated to prevent fetching updated binary patches when
	a previous upgrade has not been thoroughly completed.</para>

      <para revision="282974" contrib="sponsor" sponsor="&ff;">The
	&man.uefisign.8; utility has been added.</para>

      <para revision="283875" contrib="sponsor"
	sponsor="&multiplay;">The &man.chflags.1;, &man.chgrp.1;,
	&man.chmod.1;, and &man.chown.8; utilities now affect symbolic
	links when the <literal>-R</literal> flag is specified, as
	documented in &man.symlink.7;.</para>

      <para revision="285092">The &man.pw.8; utility has been updated
	with a new flag, <literal>-R</literal>, that sets the root
	directory within which the utility will operate.</para>
    </sect2>

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

      <para revision="282746" contrib="sponsor" sponsor="&ff;">The
	&man.resolvconf.8; utility has been updated to version
	3.7.0.</para>

      <para revision="284460">The &man.acpi.4; subsystem has been
	updated to version 20150515.</para>

      <para revision="284778">The &man.file.1; utility has been
	updated to version 5.23.</para>

      <para revision="285206">The &man.unbound.8; utility has been
	updated to version 1.5.3.</para>

      <para revision="285305">The <application>sendmail</application>
	utility has been updated to version 8.15.2.</para>

      <para revision="285330"><application>OpenSSL</application> has
	been updated to version 1.0.1p.</para>
    </sect2>

    <sect2 xml:id="userland-installer">
      <title>Installation and Configuration Tools</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="userland-rc">
      <title><filename class="directory">/etc/rc.d</filename>
	Scripts</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="userland-periodic">
      <title><filename class="directory">/etc/periodic</filename>
	Scripts</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="userland-libraries">
      <title>Runtime Libraries and API</title>

      <para revision="275040">A new file configuration library,
	&man.figpar.3;, has been added to the base system.</para>

      <para revision="280392">The &man.setmode.3; function has been
	updated to consistently set <literal>errno</literal> on
	failure.</para>
    </sect2>

    <sect2 xml:id="userland-abi">
      <title>ABI Compatibility</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>

  <sect1 xml:id="kernel">
    <title>Kernel</title>

    <para>This section covers changes to kernel configurations, system
      tuning, and system control parameters that are not otherwise
      categorized.</para>

    <sect2 xml:id="kernel-bugfix">
      <title>Kernel Bug Fixes</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="kernel-config">
      <title>Kernel Configuration</title>

      <para revision="284522" contrib="sponsor"
	sponsor="&limelight;">A new kernel configuration option,
	<literal>EM_MULTIQUEUE</literal>, has been added which enables
	multi-queue support in the &man.em.4; driver.</para>

      <note>
	<para>Multi-queue support in the &man.em.4; driver is not
	  officially supported by &intel;.</para>
      </note>
    </sect2>

    <sect2 xml:id="kernel-sysctl">
      <title>System Tuning and Controls</title>

      <para revision="276986">Throttling via <acronym>ACPI</acronym>
	and <acronym>P4TCC</acronym> via &man.device.hints.5; have
	been turned off by default.</para>

      <para revision="278982" contrib="sponsor" sponsor="&ff;">The
	&man.hwpmc.4; default and maximum callchain depths have been
	increased.  The default has been increased from 16 to 32, and
	the maximum increased from 32 to 128.</para>

      <para revision="281255" contrib="sponsor"
	sponsor="&ix;, &ff;">The &man.devfs.5; device filesystem has
	been changed to update timestamps for read/write operations
	using seconds precision.  A new &man.sysctl.8;,
	<literal>vfs.devfs.dotimes</literal> has been added, which
	when set to a non-zero value, enables default precision
	timestamps for these operations.</para>

      <para revision="280632">The <literal>kern.osrelease</literal>
	and <literal>kern.osreldate</literal> are now configurable
	&man.jail.8; parameters.</para>

      <para revision="284665" contrib="sponsor" sponsor="&ff;">A new
	&man.sysctl.8;, <literal>kern.racct.enable</literal>, has been
	added, which when set to a non-zero value allows using
	&man.rctl.8; with the <literal>GENERIC</literal> kernel.
	A new kernel configuration option,
	<literal>RACCT_DISABLED</literal> has also been added.</para>

      <para revision="284665" contrib="sponsor" sponsor="&ff;">The
	<literal>GENERIC</literal> kernel configuration now includes
	<literal>RACCT</literal> and <literal>RCTL</literal> by
	default.</para>

      <note>
	<para>To enable <literal>RACCT</literal> and
	  <literal>RCTL</literal> on a system using the
	  <literal>GENERIC</literal> kernel configuration, add
	  <literal>kern.racct.enable=1</literal> to
	  &man.loader.conf.5;, and reboot the system.</para>
      </note>
    </sect2>
  </sect1>

  <sect1 xml:id="drivers">
    <title>Devices and Drivers</title>

    <para>This section covers changes and additions to devices and
      device drivers since &release.prev;.</para>

    <sect2 xml:id="drivers-device">
      <title>Device Drivers</title>

      <para revision="282199">The <literal>drm</literal> code has
	been updated to match &linux; version 3.8.13.</para>
    </sect2>

    <sect2 xml:id="drivers-storage">
      <title>Storage Drivers</title>

      <para revision="281957">The &man.hptnr.4; driver has been
	updated to version 1.1.1.</para>
    </sect2>

    <sect2 xml:id="drivers-network">
      <title>Network Drivers</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>

  <sect1 xml:id="hardware">
    <title>Hardware Support</title>

    <para>This section covers general hardware support for physical
      machines, hypervisors, and virtualization environments, as well
      as hardware changes and updates that do not otherwise fit in
      other sections of this document.</para>

    <sect2 xml:id="hardware-support">
      <title>Hardware Support</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="hardware-virtualization">
      <title>Virtualization Support</title>

      <para revision="280370">The &man.bhyve.8; hypervisor has been
	updated to support <literal>DSM TRIM</literal> commands for
	virtual <acronym>AHCI</acronym> disks.</para>

      <para revision="283280" contrib="sponsor" sponsor="&msostc;">The
	Hyper-V&trade; drivers have been updated with several
	enhancements:</para>

      <itemizedlist>
	<listitem>
	  <para>The &man.hv.vmbus.4; driver now has multi-channel
	    support.</para>
	</listitem>

	<listitem>
	  <para>The &man.hv.storvsc.4; driver now has scatter/gather
	    support, in addition to performance improvements.</para>
	</listitem>

	<listitem>
	  <para>The &man.hv.kvp.4; driver has received several bug
	    fixes.</para>
	</listitem>
      </itemizedlist>

      <para revision="285236" contrib="sponsor" sponsor="&msostc;">The
	&man.hv.netvsc.4; driver has been updated to support checksum
	offloading and <acronym>TSO</acronym>.</para>
    </sect2>

    <sect2 xml:id="hardware-arm">
      <title>ARM Support</title>

      <para revision="278608">The <literal>bcm2835_cpufreq</literal>
	driver has been added, which supports <acronym>CPU</acronym>
	frequency and voltage control on the Raspberry Pi
	<acronym>SOC</acronym>.</para>
    </sect2>
  </sect1>

  <sect1 xml:id="storage">
    <title>Storage</title>

    <para>This section covers changes and additions to file systems
      and other storage subsystems, both local and networked.</para>

    <sect2 xml:id="storage-general">
      <title>General Storage</title>

      <para revision="279002" contrib="sponsor" sponsor="&ix;">The
	&man.ctl.4; <acronym>LUN</acronym> mapping has been rewritten,
	replacing <acronym>iSCSI</acronym>-specific mapping mechanisms
	with a new mechanism that works for any port.</para>

      <para revision="279055" contrib="sponsor" sponsor="&ix;">The
	&man.ctld.8; utility has been updated to allow controlling
	non-<acronym>iSCSI</acronym> &man.ctl.4; ports.</para>

      <para revision="283223" contrib="sponsor" sponsor="&ff;">The
	&man.autofs.5; subsystem has been updated to include a new
	&man.auto.master.5; map, <literal>-media</literal>, which
	allows automatically mounting removable media, such as
	<acronym>CD</acronym> drives or <acronym>USB</acronym> flash
	drives.</para>

      <para revision="283242" contrib="sponsor" sponsor="&ff;">The
	&man.autofs.5; subsystem has been updated to include a new
	&man.auto.master.5; map, <literal>-noauto</literal>, which
	handles &man.fstab.5; entries set to
	<literal>noauto</literal>.</para>
    </sect2>

    <sect2 xml:id="storage-net">
      <title>Networked Storage</title>

      <para revision="274939" contrib="sponsor" sponsor="&ix;">The
	&man.ctld.8; utility has been updated to include support for
	registering <acronym>iSCSI</acronym> targets and portals on
	<acronym>iSNS</acronym> servers.  This provides a mechanism
	which allows <acronym>iSCSI</acronym> initiators to find
	targets and portals without requiring active
	discovery.</para>
    </sect2>

    <sect2 xml:id="storage-zfs">
      <title>ZFS</title>

      <para revision="275490">A new tunable,
	<literal>vfs.zfs.spa_slop_shift</literal>, has been added,
	which controls how much space is reserved by default.</para>

      <para revision="277583">The <literal>arc_meta_limit</literal>
	statistics are now visible through the
	<literal>kstat</literal> &man.sysctl.8;.  As a result of this
	change, the <literal>vfs.zfs.arc_meta_used</literal>
	&man.sysctl.8; has been removed, and replaced with the
	<literal>kstat.zfs.misc.arcstats.arc_meta_used</literal>
	&man.sysctl.8;.</para>
    </sect2>

    <sect2 xml:id="storage-geom">
      <title>&man.geom.4;</title>

      <para revision="275891" contrib="sponsor" sponsor="&ix;">The
	&man.ctl.4; subsystem has been updated, increasing the ports
	limit from <literal>128</literal> to <literal>256</literal>,
	and <acronym>LUN</acronym> limit from <literal>256</literal>
	to <literal>1024</literal>.</para>
    </sect2>
  </sect1>

  <sect1 xml:id="boot">
    <title>Boot Loader Changes</title>

    <para>This section covers the boot loader, boot menu, and other
      boot-related changes.</para>

    <sect2 xml:id="boot-loader">
      <title>Boot Loader Changes</title>

      <para revision="281843">The boot loader has been updated to
	support entering the <acronym>GELI</acronym> passphrase before
	loading the kernel.  To enable this behavior, add
	<literal>geom_eli_passphrase_prompt="YES"</literal> to
	&man.loader.conf.5;.</para>

      <para revision="283262" contrib="sponsor" sponsor="&ff;">The
	memory test run at boot time on &os;/&arch.amd64; platforms
	has been disabled by default.</para>
    </sect2>

    <sect2 xml:id="boot-menu">
      <title>Boot Menu Changes</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>

  <sect1 xml:id="network">
    <title>Networking</title>

    <para>This section describes changes that affect networking in
      &os;.</para>

    <sect2 xml:id="network-protocols">
      <title>Network Procols</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>

  <sect1 xml:id="ports">
    <title>Ports Collection and Package Infrastructure</title>

    <para>This section covers changes to the &os;&nbsp;Ports
      Collection, package infrastructure, and package maintenance and
      installation tools.</para>

    <sect2 xml:id="ports-infrastructure">
      <title>Infrastructure Changes</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="ports-packages ">
      <title>Packaging Changes</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>

  <sect1 xml:id="doc">
    <title>Documentation</title>

    <para>This section covers changes to the &os;&nbsp;Documentation
      Project sources and toolchain.</para>

    <sect2 xml:id="doc-sources">
      <title>Documentation Source Changes</title>

      <para>&nbsp;</para>
    </sect2>

    <sect2 xml:id="doc-toolchain">
      <title>Documentation Toolchain Changes</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>

  <sect1 xml:id="releng">
    <title>Release Engineering and Integration</title>

    <para>This section convers changes that are specific to the
      &os;&nbsp;Release Engineering processes.</para>

    <sect2 xml:id="releng-changes">
      <title>Integration Changes</title>

      <para>&nbsp;</para>
    </sect2>
  </sect1>
</article>