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

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE article PUBLIC "-//FreeBSD//DTD DocBook XML V5.0-Based Extension//EN"
	  "http://www.FreeBSD.org/XML/share/xml/freebsd50.dtd" [
<!ENTITY % release PUBLIC "-//FreeBSD//ENTITIES Release Specification//EN"
	 "http://www.FreeBSD.org/release/XML/share/xml/release.ent">
 %release;
<!ENTITY % sponsor PUBLIC "-//FreeBSD//ENTITIES Sponsor Specification//EN"
	 "http://www.FreeBSD.org/release/XML/share/xml/sponsor.ent">
 %sponsor;
<!ENTITY % vendor PUBLIC "-//FreeBSD//ENTITIES Vendor Specification//EN"
	 "http://www.FreeBSD.org/release/XML/share/xml/vendor.ent">
 %vendor;
<!ENTITY security PUBLIC "-//FreeBSD//ENTITIES Security Advisory List//EN"
	 "http://www.FreeBSD.org/release/XML/share/xml/security.xml">
<!ENTITY errata PUBLIC "-//FreeBSD//ENTITIES Errata List//EN"
	 "http://www.FreeBSD.org/release/XML/share/xml/errata.xml">
]>
<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>2017</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="313206">The &man.inetd.8; utility is now built
	without <literal>libwrap</literal> support when
	<literal>WITHOUT_TCP_WRAPPERS</literal> is set in
	&man.src.conf.5;.</para>

      <para revision="316046">The &man.libthr.3; library and related
	files are now evaluated and removed by the
	<literal>delete-old-libs</literal> target when upgrading the
	system if <literal>WITHOUT_LIBTHR</literal> is
	set in &man.src.conf.5;.</para>

      <para revision="319243">The
	<literal>WITH_RPCBIND_WARMSTART_SUPPORT</literal>
	&man.src.conf.5; knob has been added, which when enabled
	allows building &man.rpcbind.8; with
	<literal>warmstart</literal> support.</para>
    </sect2>

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

      <para revision="298427">The &man.truss.1; utility has been
	updated to include the <literal>-H</literal> flag, which logs
	the thread ID of a thread invoking a system call.</para>

      <para revision="308915">The &man.zfsbootcfg.8; utility has been
	added, providing one-time &man.boot.config.5;-style options
	for &man.zfsboot.8;.</para>

      <para revision="316348">The &man.pw.8; utility has been updated
	to properly respect &man.pw.conf.5;, if present.</para>

      <para revision="319390">The &man.cxgbetool.8; utility has been
	added, providing command-line access to features and debugging
	facilities of &man.cxgbe.4; devices.</para>

      <para revision="320646">The &man.rcp.1;, &man.rlogin.1;,
	&man.rsh.1;, &man.rlogind.8;, and &man.rshd.8; utilities have
	been marked as deprecated, and planned for removal in
	&os;&nbsp;12.0-RELEASE.</para>

      <para revision="320772">The &man.syslogd.8; utility has been
	updated to restart logging a subprocess that had restarted
	unexpectedly.</para>

      <para revision="320824">The &man.gdb.1; and &man.kgdb.1;
	utilities have been marked as deprecated, and planned for
	removal from the base system in the future.  A newer version
	is available in the <filename
	  role="package">devel/gdb</filename> port.</para>

      <para revision="321242">The &man.cron.8; utility has been
	updated to add support for including files within <filename
	  class="directory">/etc/cron.d</filename> and <filename
	  class="directory">/usr/local/etc/cron.d</filename> by
	default.</para>

      <para revision="321234">The &man.syslogd.8; utility has been
	updated to add the <literal>include</literal> keyword which
	allows specifying a directory containing configuration files
	to be included in addition to &man.syslog.conf.5;.  The
	default &man.syslog.conf.5; has been updated to include
	<filename class="directory">/etc/syslog.d</filename> and
	<filename class="directory">/usr/local/etc/syslog.d</filename>
	by default.</para>

      <para revision="321263">The &man.newsyslog.8; utility has been
	updated to support logging to &man.syslogd.8; in a format
	compliant with RFC5424.  For more details, see the description
	for the <literal>T</literal> flag in
	&man.newsyslog.conf.5;.</para>
    </sect2>

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

      <para revision="309512"><application>Subversion</application>
	has been updated to version 1.9.5.</para>

      <para revision="309848">&man.file.1; has been updated to version
	5.29.</para>

      <para revision="310490">The &man.amd.8; utility has been updated
	to version 6.2.</para>

      <para revision="312516">&man.xz.1; has been updated to version
	5.2.3.</para>

      <para revision="313796">&man.zlib.3; has been updated to version
	1.2.11.</para>

      <para revision="316069">&man.ntpd.8; has been updated to version
	4.2.8p10.</para>

      <para revision="316350">Timezone data files have been updated to
	version 2017b.</para>

      <para revision="316958">&man.tcsh.1; has been updated to version
	6.20.00.</para>

      <para revision="321304">&man.libarchive.3; has been updated to
	version 3.3.2.</para>

      <para revision="321964"><application>bmake</application> has
	been updated to version 20170720.</para>

      <para revision="322244"><filename>pci_vendors</filename> has
	been updated to version 2017.07.27.</para>
    </sect2>

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

      <para revision="321202" contrib="sponsor" sponsor="&ff;">The
	default <acronym>EFI</acronym> partition created by
	&man.bsdinstall.8; has been increased from 800KB to
	200MB.</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="316040">The &man.kvm.close.3; function has been
	updated to return the accumulated error from previous
	&man.close.2; calls.</para>

      <para revision="320312">The &man.syslog.3; function has been
	updated to be more resilent to thread cancellation occurring
	in supported deferred mode, eliminating possible lockups in
	multi-threaded applications that often create and cancel
	threads using the function, such as <filename
	  role="package">net/mpd5</filename>.</para>

      <para revision="321074">The &man.stdio.3; function has been
	updated to be deferred cancel-safe, eliminating possible
	lockups in multi-threaded applications using functions such
	as &man.funopen.3;, &man.fropen.3;, and &man.fwopen.3;.</para>
    </sect2>

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

      <para revision="309258">The type <literal>max_align_t</literal>
	is now defined for C11 compliance.</para>
    </sect2>

    <sect2 xml:id="userland-debug">
      <title>Userland Debugging</title>

      <para revision="304017">&man.ptrace.2; now supports events for
	thread creation and destruction, permitting more reliable
	debugging of threaded processes.</para>

      <para revision="304499">&man.ptrace.2; now supports events for
	&man.vfork.2;, permitting reliable debugging across
	&man.vfork.2; invocations.</para>

      <para revision="306786">Process core dumps now include the
	process ID (<acronym>PID</acronym>) and command line
	arguments.</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-misc">
      <title>Miscellaneous Kernel Changes</title>

      <para revision="321198">The &man.vt.4; driver has been updated,
	increasing the maximum framebuffer size.</para>
    </sect2>

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

      <para revision="317434">The &man.ipf.4; packet filter has been
	updated to prevent <literal>keep state</literal> from
	incorrectly implying <literal>keep frags</literal>, matching
	the behavior documented in &man.ipf.5;.</para>

      <para revision="322793">The &man.geom.4;
	<literal>JOURNAL</literal> class has been updated to fix
	<literal>flush_queue</literal> handling.</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="321024">The
	<literal>kern.features.linux</literal> and
	<literal>kern.features.linux64</literal> flags have been
	added to the <literal>kern.features</literal> &man.sysctl.8;,
	which when set to <literal>1</literal>, indicate the kernel
	is configured with compatibility for 32-bit and/or 64-bit
	linux binaries, respectively.</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 revision="306533" contrib="sponsor"
	sponsor="&chelsio;">&man.devctl.8; now supports a &quot;clear
	driver&quot; command as a complement to &quot;set
	driver&quot;.</para>
    </sect2>

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

      <para revision="319436">The &man.mpr.4; driver has been updated
	to support tri-mode
	(<acronym>SAS</acronym>/<acronym>SATA</acronym>/<acronym>PCIe</acronym>)
	Broadcom&reg; storage adapters.</para>

      <para revision="321067">The &man.arcmsr.4; driver has been
	updated to version 1.40.00.00, adding support for ARC-1884
	<acronym>SATA</acronym> controllers.</para>
    </sect2>

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

      <para revision="309447" contrib="sponsor"
	sponsor="&chelsio;">The &man.cxgbev.4; driver has been added,
	providing support for Virtual Function devices
	(<acronym>VFs</acronym>) on Chelsio T4 and T5 adapters.</para>

      <para revision="309560" contrib="sponsor"
	sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
	to provide support for Virtual Function devices
	(<acronym>VFs</acronym>) on Chelsio T6 adapters.</para>

      <para revision="309560" contrib="sponsor"
	sponsor="&chelsio;">The &man.cxgbe.4; driver now supports
	devices using T6-based adapters which support 10, 25, 40, and
	100 Gbps.</para>

      <para revision="312359">The &man.alc.4; driver has been updated
	to provide support for Atheros&reg; Killer&nbsp;E2400&trade;
	Gigabit ethernet cards.</para>

      <para revision="314019" contrib="sponsor" sponsor="&ms;">The
	&man.alc.4; driver has been updated to provide support for
	Atheros&reg; Killer&nbsp;E2500&trade; Gigabit ethernet
	cards.</para>

      <para revision="316485">The &man.qlnxe.4; driver has been added,
	providing support for Cavium&reg; Qlogic&trade; 45000 Series
	adapters.</para>

      <para revision="319270" contrib="sponsor"
	sponsor="&chelsio;">The &man.cxgbe.4; driver has been updated
	to firmware version 1.16.45.0 for T4, T5, and T6 cards.</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="306520" contrib="sponsor"
	sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
	&man.bhyve.4; resets functions via <acronym>FLR</acronym> when
	a virtual machine is started and stopped.</para>

      <para revision="306472" contrib="sponsor"
	sponsor="&chelsio;"><acronym>PCI</acronym> passthrough with
	&man.bhyve.4; supports more dynamic configurations permitting
	devices to be marked for passthrough or host use at
	runtime.</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 revision="318675">The <acronym>NFS</acronym> client now
	properly handles <literal>NFS4ERR_BAD_SESSION</literal> errors
	received from an <acronym>NFS</acronym> server.  Additionally,
	the kernel <acronym>RPC</acronym> client has been updated to
	prevent creating new <acronym>TCP</acronym> connections when
	<literal>ERESTART</literal> is received from
	&man.sosend.9;.</para>

      <para revision="321031">The <acronym>NFS</acronym> client has
	been updated to support <acronym>pNFS</acronym>
	<literal>commit</literal> through the
	<literal>DS</literal>.</para>
    </sect2>

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

      <para></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>&nbsp;</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-general">
      <title>General Networking Changes</title>

      <para revision="313558" contrib="sponsor"
	sponsor="&dellemc;">The network stack has been modified to fix
	incorrect or invalid <acronym>IP</acronym> addresses if
	multiple threads emit a <acronym>UDP</acronym>
	<literal>log_in_vain</literal> message concurrently.</para>

      <para revision="317375" contrib="sponsor"
	sponsor="&multiplay;">The <acronym>TCP</acronym> stack has
	been changed to use the estimated <acronym>RTT</acronym>
	instead of timestamps for receive buffer auto resizing.</para>
    </sect2>

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

      <para revision="301772">Dummynet AQM, an independent
	implementation of CoDel and FQ-CoDel for ipfw/dummynet has
	been imported to the base system.</para>

      <para revision="309340" contrib="sponsor"
	sponsor="&dellemc;">Support for <acronym>GARP</acronym>
	(gratuitous <acronym>ARP</acronym>) retransmit has been added.
	A new &man.sysctl.8;,
	<literal>net.link.ether.inet.garp_rexmit_count</literal>, has
	been added, which sets the maximum number of retransmissions
	when set to a non-zero value.</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>