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

<articleinfo>
  <title>&os;/&arch; &release.current; Release Notes</title>

  <corpauthor>The &os; Project</corpauthor>

  <pubdate>$FreeBSD$</pubdate>

  <copyright>
    <year>2000</year>
    <year>2001</year>
    <year>2002</year>
    <year>2003</year>
    <year>2004</year>
    <holder role="mailto:doc@FreeBSD.org">The &os; Documentation Project</holder>
  </copyright>

  <abstract>
    <para>The release notes for &os; &release.current; contain a summary
      of the changes made to the &os; base system since &release.branch; is created.
      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>
</articleinfo>

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

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

<![ %release.type.current [

  <para>The &release.type; distribution to which these release notes
    apply represents the latest point along the &release.branch; development
    branch since &release.branch; is created.  Some pre-built, binary
    &release.type; distributions along this branch
    can be found at <ulink url="&release.url;"></ulink>.</para>

]]>

<![ %release.type.snapshot [

  <para>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;.  Some
    pre-built, binary &release.type; distributions along this branch
    can be found at <ulink url="&release.url;"></ulink>.</para>

]]>

<![ %release.type.release [

  <para>This distribution of &os; &release.current; is a
    &release.type; distribution.  It can be found at <ulink
    url="&release.url;"></ulink> or any of its mirrors.  More
    information on obtaining this (or other) &release.type;
    distributions of &os; can be found in the <ulink
    url="&url.books.handbook;/mirrors.html"><quote>Obtaining
    &os;</quote> appendix</ulink> to the <ulink
    url="&url.books.handbook;/">&os;
    Handbook</ulink>.</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 id="new">
  <title>What's New</title>

  <para>This section describes
    the most user-visible new or changed features in &os;
    since &release.prev;.
    In general, changes described here are unique to the &release.branch;
    branch unless specifically marked as &merged; features.
  </para>

  <para>Typical release note items
    document recent security advisories issued after
    &release.prev.historic;,
    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 id="security">
    <title>Security Advisories</title>

    <para></para>
  </sect2>

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

    <para arch="i386">Support for 80386 processors (the
      <literal>I386_CPU</literal> kernel configuration option) has
      been removed.  Users running this class of CPU should use &os;
      5.<replaceable>X</replaceable> or earlier.</para>

    <para>The loader tunable <varname>debug.mpsafevm</varname> has been
      has been enabled by default.</para>

    <!-- Above this line, sort kernel changes by manpage/keyword-->

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

      <para arch="i386">A serial console-capable version of
	<filename>boot0</filename> has been added.  It can be written
	to a disk using &man.boot0cfg.8; and specifying
	<filename>/boot/boot0sio</filename> as the argument to the
	<option>-b</option> option.</para>

      <para arch="i386"><filename>cdboot</filename> now works around a
	BIOS problem observed on some systems when booting from USB
	CDROM drives.</para>

      <!-- Above this line, order boot loader changes by keyword-->

    </sect3>

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

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

	<para></para>
      </sect4>

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

	<para>The &man.sf.4; driver now has support for device polling
	  and &man.altq.4;. &merged;</para>

      </sect4>
    </sect3>

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

      <para>Ongoing work is reducing the use of the Giant lock by the
	network protocol stack and improving the locking
	strategies.</para>

      <para>A bug in TCP that sometimes caused RST packets to
	be ignored if the receive window was zero bytes has been
	fixed. &merged;</para>

      <para>Several bugs in the TCP SACK implementation have been
	fixed. &merged;</para>

      <para>RFC 1644 T/TCP support has been removed.</para>

    </sect3>

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

      <para></para>
    </sect3>

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

      <para>The autofs(9) file system and the userland library
	&man.libautofs.3; have been added.</para>
    </sect3>

    <sect3>
      <title>Contributed Software</title>

      <para></para>
    </sect3>
  </sect2>

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

    <para>The <literal>create</literal> command of the &man.gpt.8;
      utility now supports a <option>-f</option> command-line flag to
      force creation of a GPT even when there is an MBR record on a
      disk. &merged;</para>

    <para>The <literal>NO_NIS</literal> compile-time knob for userland
      has been added.  As its name implies, enabling this
      <filename>Makefile</filename> variable will cause NIS support to
      be excluded from various programs and will cause the NIS
      utilities to not be built. &merged;</para>

    <para arch="i386">The &man.mkuzip.8;, which is a non-GPL
      utility to compress file system images for use with
      <literal>GEOM_UZIP</literal> &man.geom.4; module,
      has been added.</para>

    <para>The &man.ncal.1; utility now supports a <option>-m</option>
      flag to generate a calendar for a specified month in the current
      year. &merged;</para>

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

      <para></para>
    </sect3>
  </sect2>

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

    <para><application>sendmail</application> has been updated from
      version 8.13.1 to version 8.13.3.</para>

    <para></para>
  </sect2>

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

    <para></para>
  </sect2>

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

    <para></para>
  </sect2>

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

    <para></para>

  </sect2>
</sect1>

<sect1 id="upgrade">
  <title>Upgrading from previous releases of &os;</title>

  <para></para>

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