path: root/release/doc/en_US.ISO8859-1/relnotes/article.xml

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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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<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>

    <!-- First rev: 285831 -->
    <!-- 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>&nbsp;</para>
    </sect2>

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

      <para revision="286064">The &man.jail.8; utility has been
	updated to include a new flag, <literal>-l</literal>, which
	ensures a clean environment in the target jail when used.
	Additionally, &man.jail.8; will run a shell within the target
	jail when run no commands are specified.</para>

      <para revision="287122">The &man.mkimg.1; utility has been
	updated to include support for <literal>NTFS</literal>
	filesystems in both <acronym>MBR</acronym> and
	<acronym>GPT</acronym> partitioning schemes.</para>

      <para revision="288202" contrib="sponsor" sponsor="&ff;">The
	&man.ar.1; utility now enables deterministic mode
	(<literal>-D</literal>) by default.  This behavior can be
	disabled by specifying the <literal>-U</literal> flag.</para>

      <para revision="287746">The &man.pciconf.8; utility has been
	updated to use the PCI ID database from the <filename
	  role="package">misc/pciids</filename> package, if present,
	falling back to the PCI ID database in the &os; base
	system.</para>

      <para revision="288710" contrib="sponsor" sponsor="&gandi;">A
	new utility, &man.sesutil.8;, has been added, which is used
	to manage &man.ses.4; devices.</para>

      <para revision="291774">The &man.cp.1; utility has been updated
	to include a new flag, <literal>-s</literal>, which creates
	a symbolic link to the specified source.</para>

      <para revision="292231">Support for the
	<literal>-manage-gids</literal> has been added to
	&man.nfsd.8;.  This option can be enabled at boot time by
	adding <literal>nfs_server_managegids="YES"</literal> to
	&man.rc.conf.5;.</para>

      <para revision="292462" contrib="sponsor"
	sponsor="&dellinc;">The resolver library has been updated to
	reload <filename>/etc/resolv.conf</filename> if the
	modification time has changed.</para>

      <para revision="293744" contrib="sponsor" sponsor="&ff;">The
	initial implementation of <quote>reroot</quote> support has
	been added to the &man.shutdown.8; utility, allowing the root
	filesystem to be mounted from a temporary source filesystem
	without requiring a full system reboot.</para>
    </sect2>

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

      <para revision="286082">The &man.libarchive.3; library has been
	updated to properly skip a sparse file entry in a &man.tar.1;
	file, which would previously produce errors.</para>

      <para revision="286751">Timezone data files have been updated to
	version 2015f.</para>

      <para revision="290152">The &man.file.1; utility has been
	updated to version 5.25.</para>

      <para revision="292588">The &man.xz.1; utility has been updated
	to version 5.2.2, which provides support for multi-threaded
	compression.</para>

      <para revision="293650">The &man.ntpd.8; utility has been
	updated to version 4.2.8p5.</para>

      <para revision="294286">The &man.less.1; utility has been
	updated to version v481.</para>

      <para revision="295367">The <application>OpenSSH</application>
	suite has been updated to version 7.1p2.</para>

      <para revision="295690">The
	<literal>unbound-control-setup</literal> script has been
	removed from the base system.</para>

      <para revision="295691">The &man.unbound.8; utility has been
	updated to enable the <literal>insecure-lan-zones</literal>
	option in preference of listing each <acronym>AS112</acronym>
	zone individually.</para>

      <para revision="296317">The <application>OpenSSL</application>
	suite has been updated to version 1.0.1s.</para>
    </sect2>

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

      <para revision="295264" contrib="sponsor"
	sponsor="&scaleengine;">The &man.bsdinstall.8; utility has
	been updated to support <acronym>ZFS</acronym> installation
	on <acronym>EFI</acronym>-based systems.</para>
    </sect2>

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

      <para revision="294680">The <literal>netwait</literal>
	&man.rc.8; script has been updated to wait for network
	interfaces that attach late in the boot process, such as some
	<acronym>USB</acronym> network cards.</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>&nbsp;</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 revision="288167" contrib="sponsor"
	sponsor="&multiplay;">The &man.kqueue.2; system call has been
	updated to handle write events to files larger than 2
	gigabytes.</para>
    </sect2>

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

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

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

      <para revision="287037">The &man.uart.4; driver has been
	updated to allow tuning pulses per second captured in the
	CTS line during runtime, whereas previously only the DCD line
	could be used without rebuilding the kernel.</para>
    </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>&nbsp;</para>
    </sect2>

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

      <para revision="288732" contrib="sponsor" sponsor="&ix;">The
	<acronym>CTL</acronym> High Availability implementation has
	been rewritten.</para>

      <para revision="288810">The &man.ctl.4; driver has been updated
	to support CD-ROM and removable devices.</para>
    </sect2>

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

      <para revision="295524" contrib="sponsor"
	sponsor="&limelight;, &intelcorp;">The &man.ixgbe.4; driver
	has been updated to version 3.1.13-k.</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 revision="293675">The &man.ismt.4; driver has been added,
	providing support for recent &intel; SMBus 2.0
	controllers.</para>
    </sect2>

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

      <para revision="287802">The &man.xen.4; driver has been updated
	to include support for <literal>blkif</literal> indirect
	segment I/O.</para>
    </sect2>

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

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

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

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

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

      <para revision="287665" contrib="sponsor"
	sponsor="&clusterhq;">The &man.zfs.8; <literal>l2arc</literal>
	code has been updated to take <literal>ashift</literal> into
	account when gathering buffers to be written to the
	<literal>l2arc</literal> device.</para>
    </sect2>

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

      <para>&nbsp;</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="294445">Initial terminal emulation support has
	been added to <filename>loader.efi</filename> for
	<acronym>UEFI</acronym>-based systems.</para>

      <para revision="294999" contrib="sponsor"
	sponsor="&multiplay;">Initial <acronym>ZFS</acronym> boot
	support has been added to the <acronym>EFI</acronym>
	implementation.</para>

      <para revision="295475" contrib="sponsor"
	sponsor="&scaleengine;">The <acronym>UEFI</acronym> loader has
	been updated to support multiple <acronym>ZFS</acronym> boot
	environments, such as those provided by <filename
	  role="package">sysutils/beadm</filename>.</para>
    </sect2>

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

      <para revision="294446">The <acronym>UEFI</acronym> boot menu
	has been updated to enable the <quote>Beastie</quote> menu,
	similiar to the traditional &man.sc.4; boot menu.</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 Protocols</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>