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>
    <year>2005</year>
    <year>2006</year>
    <holder role="mailto:doc@FreeBSD.org">The &os; Documentation Project</holder>
  </copyright>

  <legalnotice 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>
</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; was created.  Information regarding 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;.
    Information regarding
    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;,
    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>A temporary file vulnerability in &man.texindex.1;, which
      could allow a local attacker to overwrite files in the context
      of a user running the &man.texindex.1; utility, has been fixed.
      For more details see security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:01.texindex.asc">FreeBSD-SA-06:01.texindex</ulink>. &merged;</para>

    <para>A temporary file vulnerability in the &man.ee.1; text
      editor, which could allow a local attacker to overwrite files in
      the context of a user running &man.ee.1;, has been fixed.  For
      more details see security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:02.ee.asc">FreeBSD-SA-06:02.ee</ulink>. &merged;</para>

    <para>Several vulnerabilities in the &man.cpio.1; utility have
      been corrected.  For more
      details see security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:03.cpio.asc">FreeBSD-SA-06:03.cpio</ulink>. &merged;</para>

    <para>An error in &man.ipfw.4; IP fragment handling, which could
      cause a crash, has been fixed.  For more
      details see security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:04.ipfw.asc">FreeBSD-SA-06:04.ipfw</ulink>. &merged;</para>

    <para>A potential buffer overflow in the IEEE 802.11 scanning code
      has been corrected.  For more
      details see security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:05.80211.asc">FreeBSD-SA-06:05.80211</ulink>. &merged;</para>

    <para>Two instances in which portions of kernel memory could be
      disclosed to users have been fixed.  For more details see
      security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:06.kmem.asc">FreeBSD-SA-06:06.kmem</ulink>. &merged;</para>

    <para>A logic bug in the IP fragment handling in &man.pf.4;, which
      could cause a crash under certain circumstances, has been fixed.
      For more details see security advisory <ulink
      url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:07.pf.asc">FreeBSD-SA-06:07.pf</ulink>. &merged;</para>

    <para arch="i386,amd64">An information disclosure issue found in the
      &os; kernel running on 7th- and 8th-generation AMD processors
      has been fixed.  For more details see security advisory <ulink
       url="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:14.fpu.asc">FreeBSD-SA-06:14.fpu</ulink>. &merged;</para>

  </sect2>

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

    <para>&man.acpi.4; now has basic support for the HPET time counter.</para>

    <para>The &man.acpi.ibm.4; driver now supports setting the fan control
      mode to manual or automatic, and adjusting the fan speed if the
      fan control mode is manual.  To enable manual control of the fan speed,
      the sysctl variable <varname>dev.acpi_ibm.<replaceable>0</replaceable>.fan</varname>
      needs to be set to zero (manual).  This should only be used with
      extreme precaution, as disabling automatic fan control might
      overheat the hardware and lead to permanent damage.</para>

    <para>The &man.ddb.4; debugger now provides the <literal>show lock</literal>
      command.  If the argument has a valid lock class,
      this displays various information about the lock and calls a
      new function pointer in lock_class (lc_ddb_show) to dump class-specific
      information about the lock as well (such as the owner of a mutex or
      xlock'ed sx lock).  &merged;</para>

    <para>The &man.ddb.4; debugger now provides the <literal>show sleepq</literal>
      command.  This takes a wait channel as an argument and looks
      for a sleep queue associated with that wait channel.</para>

    <para><filename>DEFAULTS</filename> kernel configuration files
      for each platform have been added.  &merged;</para>

    <para>A bug in file descriptor handling such that simple
      <literal>close(0); dup(fd)</literal> sequence does not return
      descriptor <literal>0</literal> in some cases, has been fixed.</para>

    <para>The &man.firmware.9; subsystem has been added.  This allows
      to load binary data into the kernel via a specially crafted module.
      &merged;</para>

    <para>The &man.gdb.1; remote debugging interface now supports
      copying console messages to a remote debugger instance.
      To enable this, set <literal>debug.gdbcons="1"</literal>
      in <filename>loader.conf</filename>, enter <literal>boot -d;
	gdb; step</literal> from the loader prompt,
      then attach &man.gdb.1; from a remote machine.
      The sysctl variable <varname>debug.gdbcons</varname> can be
      used to turn on/off this functionality.</para>

    <para>&man.hwpmc.4; and &man.pmcstat.8; now support profiling
      of dynamically loaded kernel modules and
      <function>dlopen()</function>'ed shared objects.
      &man.pmcstat.8; can now log over a network socket
      to a remote host.</para>

    <para>The &man.random.4; entropy device driver is now MPSAFE.
      &merged;</para>

    <para>The <literal>SIGCHLD</literal> signal queuing has been
      added.  For each child process whose status has been changed,
      a SIGCHLD instance is queued.  If the signal is still pending,
      and the process changed status several times, the signal information
      is updated to reflect the latest process status.
      There is a loader tunable <varname>kern.sigqueue.queue_sigchild</varname>
      which can control the behavior, setting it to zero disables the
      <literal>SIGCHLD</literal> queuing feature.</para>

    <para arch="amd64,i386">Instead of dumping the whole physical
      memory, the kernel now defaults to dump only pages that are
      actively mapped into kvm.  A new sysctl variable
      <varname>debug.minidump</varname>
      can be used to turn off this behavior when set to zero.</para>

    <para>A new sysctl variable <varname>kern.malloc_stats</varname>
      has been added.  This allows to export kernel malloc
      statistics via a binary structure stream.</para>

    <para>A new sysctl variable <varname>kern.elf[32|64].can_exec_dyn</varname>
      has been added.  This allows to execute a <literal>ET_DYN</literal> binary
      (shared object) when the variable is set to <literal>1</literal>.
      This is set to <literal>0</literal> by default and useful for some
      Linux scripts which expect to be able to execute
      <filename>/lib/ld-linux.so.2</filename>.</para>

    <para>A new sysctl variable <varname>kern.elf[32|64].can_exec_dyn</varname>
      has been removed.  Instead the <varname>brandinfo</varname>
      structure has been extended to be able to provide the 
      <literal>BI_CAN_EXEC_DYN</literal> flag for all brands that usually
      allow executing ELF dynamic binaries.</para>

    <para>A new sysctl variable <varname>kern.forcesigexit</varname>
      has been added.  This forces a process
      to sigexit if a trap signal is being held by the current thread or
      ignored by the current process and is enabled by default.</para>

    <para>RedZone, a buffer corruption protection for kernel &man.malloc.9;
      facility has been implemented.  This detects both of buffer underflows and
      buffer overflows bugs at runtime on &man.free.9; and &man.realloc.9;,
      and prints backtraces from where memory was allocated and from where
      it was freed.  For more details, see the &man.redzone.9; manual page.</para>

    <para>A new sysctl variable <varname>security.mac.biba.interfaces_equal</varname>
      which makes all network interfaces be created with the label
      <literal>biba/equal(equal-equal)</literal>, has been added.
      This is useful where programs such as &man.dhclient.8; and &man.ppp.8;.
      which initialize network interfaces do not have any labeling support.
      This variable is set as <literal>0</literal>(disabled) by default.
      &merged;</para>

    <para>A new sysctl variable <varname>vm.zone_stats</varname>
      has been added.  This allows to export &man.uma.9; allocator
      statistics via a binary structure stream.</para>

    <para>The sysctl variable <varname>hw.pci.do_powerstate</varname>
      has been changed from a boolean to a range.
      <literal>0</literal> means no power management,
      <literal>1</literal> means conservative power management which
      any device class that has caused problems is added to the watch list,
      <literal>2</literal> means aggressive power management where
      any device class that is not fundamental to the system is added to the list,
      and <literal>3</literal> means power them all down unconditionally.
      The default is <literal>1</literal>.</para>

    <para arch="ia64">The <filename>GENERIC</filename> kernel now enables
      SMP support by default.</para>

    <para>Sample kernel configuration files
      <filename>src/sys/<replaceable>arch</replaceable>/conf/MAC</filename>
      for the Mandatory Access Control framework have been added.</para>

    <para><varname>POSIX_TIMERS</varname> support has been updated to 200112L.</para>

    <para>An experimental support for POSIX message queue has been
      implemented.</para>

    <para>The support for Xbox, whose architecture is nearly identical
      has been added.  For details of the latest development,
      see <ulink url="http://xbox-bsd.nl"></ulink>.</para>

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

      <para>A new option <option>-S</option>,
	which allows setting the <filename>boot2</filename>
	serial console speed in the <filename>/boot.config</filename>
	file or on the <prompt>boot:</prompt> prompt line,
	has been added.</para>

      <para arch="i386,amd64">A new loader tunable
	<varname>comconsole_speed</varname> to change
	the serial console speed has been added.
	If the previous stage boot loader requested a serial console
	then the default speed is determined from the current serial port
	speed, and otherwise it is set to 9600 or the value of
	the kernel option <literal>BOOT_COMCONSOLE_SPEED</literal>
	at compile time.  &merged;</para>

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

    </sect3>

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

      <para>The &man.acpi.thermal.4; driver now supports
	passive cooling. &merged;</para>

      <para>The &man.cardbus.4; driver now supports
	<filename>/dev/cardbus<replaceable>%d</replaceable>.cis</filename>.</para>

      <para arch="i386,pc98">The &man.ce.4; driver,
	which supports Cronyx Tau-PCI/32 adapters, has been added.
	&merged;</para>

      <para>Support for the PadLock Security Co-processor in VIA C3
	processors has been added to the &man.crypto.9; subsystem.
	&merged;</para>

      <para>A bug which prevents the &man.ichsmb.4; kernel module
	from unloading has been fixed.</para>

      <para arch="i386,amd64">&man.ipmi.4;, an OpenIPMI compatible driver,
	has been added.
	OpenIPMI (Intelligent Platform Management Interface) is an open
	standard designed to enable remote monitoring and control of server,
	networking and telecommunication platforms.</para>

      <para>The &man.kbdmux.4; driver has been integrated into &man.syscons.4; and
	the <devicename>kbd</devicename> device driver.
	By default &man.syscons.4; will look for the &man.kbdmux.4;
	keyboard first, and then, if not found, look for any keyboard.
	Switching to &man.kbdmux.4; can be done at boot time by loading
	the <literal>kbdmux</literal> kernel module via &man.loader.8;,
	or at runtime via &man.kldload.8; and releasing the active
	keyboard.  &merged;</para>

      <para arch="amd64,i386">The &man.kbdmux.4; driver has been included in the
	<filename>GENERIC</filename> kernel by default.
	Also, the <quote>Boot FreeBSD with USB keyboard</quote>
	menu item in the boot loader menu has been removed
	since this fixes USB keyboard probing problems.
	&merged;</para>

      <para arch="ia64">The loader tunable <varname>debug.mpsafevfs</varname>
	is set to <literal>1</literal> by default.</para>

      <para>The &man.sab.4; driver has been removed (it has been
        superceded by the &man.scc.4; driver).</para>

      <para>The &man.scc.4; driver has been added.
	This provides generic support for serial communications
	controllers and delegates the control over each channel
	and mode to a subordinate driver such as &man.uart.4;.</para>

      <para arch="amd64">The smbios(4) driver support for amd64 has been
	added.</para>

      <para>The tnt4882(4) driver which supports National Instruments
	PCI-GPIB card has been added.</para>

      <para arch="alpha,amd64,i386,ia64,sparc64">The &man.uart.4; driver has been included in the
	<filename>GENERIC</filename> kernel by default.
	When both &man.sio.4; and &man.uart.4; can handle a serial port,
	&man.sio.4; will claim it.</para>

      <para>The &man.uart.4; driver now supports LOM (Lights Out Management)
	and RSC (Remote System Control) devices as console.</para>

      <para arch="i386">A new loader tunable
	<varname>hw.apic.enable_extint</varname> has been added.
	This tunable can be used not to mask the ExtINT pin on the first
	I/O APIC.  At least one chipset for Intel Pentium III seems
	to need this even though all of the pins in the 8259A's are masked.
	The default is still to mask the ExtINT pin.</para>

      <para arch="i386">Support has been improved for
	so-called <quote>legacy-free</quote> hardware, in particular,
	i386 systems without AT-style keyboard controllers such as the
	Macbook Pro.</para>

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

	<para>The &man.agp.4; driver now supports ATI IGP chipsets.
	  &merged;</para>

	<para>The &man.sound.4; driver now supports
	  wider range sampling rate, multiple precisions choice,
	  and 24/32 bit PCM format conversion.  &merged;</para>

	<para>The &man.snd.als4000.4; driver is now MPSAFE.  &merged;</para>

	<para>The &man.snd.atiixp.4; driver has been added.
	  This supports ATI IXP 200/300/400 series audio controllers.  &merged;</para>

	<para>The &man.snd.atiixp.4; driver now supports
	  suspend and resume features.</para>

	<para>The &man.snd.cmi.4; driver is now MPSAFE.</para>

	<para>The &man.snd.es137x.4; driver is now MPSAFE.  &merged;</para>

	<para>The &man.snd.ich.4; driver is now MPSAFE.  &merged;</para>

	<para>The &man.snd.solo.4; driver is now MPSAFE.  &merged;</para>

	<para>The &man.snd.via8233.4; driver is now MPSAFE.  &merged;</para>

	<para>The &man.snd.via82c686.4; driver is now MPSAFE.  &merged;</para>

	<para arch="amd64">The &man.speaker.4; driver now supports &os;/amd64.  &merged;</para>

	<para>The &man.uaudio.4; driver now supports 24/32 bit audio
	  formats and conversion.</para>
      </sect4>

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

	<para>The &man.ath.4; driver has been updated to
	  version 0.9.16.16.  &merged;</para>

	<para arch="i386,amd64">The &man.bce.4; driver, which supports Broadcom
	  NetXtreme II (BCM5706/BCM5708) PCI/PCIe Gigabit Ethernet controllers,
	  has been added.  For more details, see &man.bce.4;. &merged;</para>

	<para>A bug which prevents the &man.bfe.4; driver from working
	  on a system with over 1GB RAM has been fixed.  &merged;</para>

	<para>The &man.bge.4; driver's Jumbo frame support is now MPSAFE.</para>

	<para>The &man.bge.4; driver now supports big-endian
	  architectures such as sparc64.</para>

	<para>The &man.bge.4; driver now supports &man.polling.4; mode.
	  &merged;</para>

	<para>The &man.dc.4; driver is now MPSAFE. &merged;</para>

	<para>The &man.de.4; driver has been converted to the &man.bus.dma.9;
	  API and is now MPSAFE.</para>

	<para>The &man.ed.4; driver is now MPSAFE.</para>

	<para>The &man.el.4; driver has been removed.</para>

	<para>The &man.em.4; driver now supports big-endian
	  architectures such as sparc64.  &merged;</para>

	<para>The &man.em.4; driver has been updated to
	  version 3.2.18 from Intel, and now supports
	  82571 and 82572 based adapters.</para>

	<para>The &man.em.4; driver now includes
	  initial support for suspend and resume features.</para>

	<para>The &man.em.4; driver has been improved on
	  its performance by using a fast interrupt handler and taskqueue
	  instead of ithread handler.  This change can be disabled
	  by defining <literal>NO_EM_FASTINTR</literal> kernel option
	  for debugging purpose.</para>

	<para>The &man.iwi.4; driver now supports big-endian
	  architectures such as sparc64.</para>

	<para>The &man.le.4; driver, which supports AMD Am7900 LANCE
	  and Am79C9xx PCnet NICs and is based on NetBSD's implementation,
	  has been added.  While the &man.lnc.4; driver also supports these
	  NICs, this driver has several advantages over it such as
	  MPSAFE, ALTQ, VLAN_MTU, ifmedia, and 32-bit DMA for PCI
	  variants.  &merged;</para>

	<para>The &man.lge.4; driver is now MPSAFE. &merged;</para>

	<para>The &man.my.4; driver is now MPSAFE. &merged;</para>

	<para arch="i386,amd64">The &man.myri10ge.4; driver,
	  which supports Myricom Myri10GE 10 Gigabit Ethernet
	  adapters, has been added.  For more details, see
	  &man.myri10ge.4;.</para>

	<para>The &man.nve.4; driver has been updated to version 1.0-0310
	  (23-Nov-2005).</para>

	<para>The &man.pcn.4; driver is now MPSAFE. &merged;</para>

	<para>The &man.re.4; driver now supports D-Link DGE-528(T)
	  Gigabit Ethernet card.</para>

	<para>The &man.sf.4; driver is now MPSAFE. &merged;</para>

	<para>The &man.sk.4; driver is now MPSAFE.</para>

	<para>The &man.ste.4; driver is now MPSAFE.</para>

	<para>The &man.ti.4; driver now supports big-endian
	  architectures such as sparc64.</para>

	<para>The &man.ufoma.4; driver for
	  FOMA (third generation mobile phone system by NTT DoCoMo, Inc.
	  in Japan) has been added.
	  This should support other third generation mobile phones
	  since the driver is based on USB Implementation Guideline
	  from MCPC (Mobile Computing Promotion Consortium) in Japan.</para>

	<para>The vgapci(4) driver has been added.  This is a stub
	  device driver for VGA PCI devices and serves as a bus
	  so that other drivers such as drm(4),
	  &man.acpi.video.4;, and &man.agp.4; can attach to
	  it thus allowing multiple drivers for the same device.</para>

      </sect4>
    </sect3>

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

      <para>The &man.arp.8; retransmission algorithm has been
	rewritten as that ARP requests are retransmitted without
	suppression, while there is demand for such ARP entry.
	Due to this change, a sysctl variable
	<varname>net.link.ether.inet.host_down_time</varname>
	has been removed.  &merged;</para>

      <para>The &man.arp.8; now supports a sysctl variable
	<varname>net.link.ether.inet.log_arp_permanent_modify</varname>
	to suppress logging of attempts to modify
	permanent ARP entries.  &merged;</para>

      <para>The &man.arp.8; utility now allows <option>-i</option>
	option with <option>-d</option> and <option>-a</option> options
	to allow all entries for a given interface to be removed.</para>

      <para arch="amd64,i386,pc98">An experimental BPF Just-In-Time compiler
	has been implemented.  To enable this,
	<literal>options BPF_JITTER</literal> kernel option is needed,
	and a sysctl variable <varname>net.bpf.jitter.enable</varname>
	can be used to disable this feature.</para>

      <para>The &man.gre.4; driver, which is for GRE encapsulation
	found in RFC 1701 and RFC 1702 now supports IPv6 over GRE.</para>

      <para>The &man.if.bridge.4; bridge driver now supports
	creating span ports, which transmit a copy of every frame
	received by the bridge.  This feature can be enabled
	by using &man.ifconfig.8;.  &merged;</para>

      <para>The &man.if.bridge.4; bridge driver now supports
	RFC 3378 EtherIP.  This change makes it possible to
	add &man.gif.4; interfaces to bridges, which will then
	send and receive IP protocol 97 packets.
	Packets are Ethernet frames with an EtherIP header prepended.
        &merged;</para>

      <para>The path MTU discovery for multicast packets in the &os;
	&man.ip6.4; stack has been disabled by default because
	notifying path MTU by a lot of routers in multicast
	can be a kind of distributed Denial-of-Service attack to a router.
	This feature can be re-enabled by using a new sysctl variable
	<varname>net.inet6.ip6.mcast_pmtu</varname>.  &merged;</para>

      <para>The &man.ipfw.4; IP packet filter now supports IPv6.
	The &man.ip6fw.8; packet filter is deprecated and will be removed
	in the future releases.  &merged;</para>

      <para>The &man.ipfw.4; now supports substitution of the action
	argument with the value obtained from table lookup,
	which allows some optimization of rulesets.
	This is now applicable only to <literal>pipe</literal>,
	<literal>queue</literal>,
	<literal>divert</literal>,
	<literal>tee</literal>,
	<literal>netgraph</literal>,
	and <literal>ngtee</literal> rules.  &merged;
	For example, the following rules will throw different
	packets to different pipes:</para>

      <programlisting>pipe 1000 config bw 1000Kbyte/s
pipe 4000 config bw 4000Kbyte/s
table 1 add x.x.x.x 1000
table 1 add x.x.x.y 4000
pipe tablearg ip from table(1) to any</programlisting>

      <para>The &man.natm.4;, Native Mode ATM protocol layer is now MPSAFE.</para>

      <para>The &man.ng.bpf.4; Netgraph node now supports BPF Just-In-Time compiler.
	Also, the sysctl has been changed from <varname>net.bpf.jitter.enable</varname>
	to <varname>net.bpf_jitter.enable</varname> and this controls
	both &man.bpf.4; and &man.ng.bpf.4; now.</para>

      <para>The &man.ng.iface.4; Netgraph node now supports &man.altq.4;.
	&merged;</para>

      <para>A bug has been fixed in which NFS over TCP would not reconnect
	when the server sent a FIN.  This problem had occurred
	with Solaris NFS servers.  &merged;</para>

      <para>The sysctl variable <varname>net.inet.ip.portrange.reservedhigh</varname>
	and <varname>net.inet.ip.portrange.reservedlow</varname>
	can be used with IPv6 now.</para>

      <para>A new sysctl variable <varname>net.inet.icmp.reply_from_interface</varname>
	has been added.  This allows the &man.icmp.4;
	reply to non-local packets generated with
	the IP address the packet came through in.
	This is useful for routers to show in &man.traceroute.8;
	the actual path a packet has taken instead of
	the possibly different return path.</para>

      <para>A new sysctl variable <varname>net.inet.icmp.quotelen</varname>
	has been added.  This allows to change length of
	the quotation of the original packet in an ICMP reply.
	The minimum of 8 bytes is internally enforced.
	The maximum quotation is the remaining space in the
	reply mbuf.  This option is added in response to the
	issues raised in I-D
	<filename>draft-gont-icmp-payload-00.txt</filename>.</para>

      <para>The &man.icmp.4; now always quotes the entire TCP header
	when responding and allocate an mbuf cluster if needed.
	This change fixes the TCP issues raised in I-D
	<filename>draft-gont-icmp-payload-00.txt</filename>.</para>

      <para>A new socket option <literal>IP_MINTTL</literal> has been added.
	This may be used to set the minimum acceptable
	TTL a packet must have when received on a socket.
	All packets with a lower TTL are silently dropped,
	and this works on already connected/connecting and
	listening sockets for RAW, UDP, and TCP.  This option
	is only really useful when set to 255 preventing packets
	from outside the directly connected networks reaching
	local listeners on sockets.  Also, this option allows
	userland implementation of <quote>The Generalized TTL
	  Security Mechanism (GTSM)</quote> found in RFC 3682.</para>

      <para>The stealth forwarding now supports IPv6 as well as IPv4.
	This behavior can be controlled by using a new sysctl variable
	<varname>net.inet6.ip6.stealth</varname>.</para>

      <para>A bug that <literal>IPV6_V6ONLY</literal> socket option
	does not work for UDP has been fixed.</para>

      <para>The TCP bandwidth-delay product limiting feature has
	been disabled when the RTT is below a certain threshold.
	This optimization does not make sense on a LAN as it has
	trouble figuring out the maximal bandwidth due to the coarse
	tick granularity.  A new sysctl variable
	<varname>net.inet.tcp.inflight.rttthresh</varname> specifies
	the threshold in milliseconds below which this feature
	will disengage.  It defaults to 10ms.  &merged;</para>
    </sect3>

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

      <para>The &man.aac.4; driver now supports the Adaptec 2610SA SATA-RAID
	controller in some Hewlett-Packard machines.</para>

      <para>The &man.amr.4; driver has been improved on its performance
	and now supports full 64-bit DMA.  While this feature is
	enabled by default, this can be forced off by setting the
	<varname>hw.amr.force_sg32</varname> loader tunable for
	debugging purpose.
	&merged;</para>

      <para>The &man.amr.4; driver now supports &man.ioctl.2; requests
	necessary for Linux LSI MegaRaid tools on &os;'s Linux emulation
	environment.
	&merged;</para>

      <para>The &man.ata.4; driver now supports a workaround
	for some controllers whose DMA does not work properly
	in 48bit mode.  For the suspicious controllers
	the PIO mode will be used for access to over 137GB areas.
	&merged;</para>

      <para>The &man.ata.4; driver now supports the ITE IT8211F IDE controller,
	and Promise PDC40718 and PDC40719 chip found in Promise
	Fasttrak TX4300.
	&merged;</para>

      <para>The &man.ata.4; driver now supports DMA for kernel crash dump
	and crash dumping to &man.ataraid.4; device.
	&merged;</para>

      <para>The &man.ata.4; driver now supports USB mass storage class
	devices.  To enable it, a line <literal>device atausb</literal>
	in the kernel configuration file or loading the
	<filename>atausb</filename> kernel module is needed.
	Note that this conflicts &man.umass.4; and cannot coexist with
	each other.</para>

      <para>The &man.ataraid.4; driver now supports
	JMicron ATA RAID metadata.  &merged;</para>

      <para>The <literal>GEOM_LABEL</literal> class now supports
	Ext2FS, NTFS, and ReiserFS.  &merged;</para>

      <para>The <literal>GEOM_MIRROR</literal> class now supports
	kernel crash dump to the GEOM providers.
	&merged;</para>

      <para>The <literal>GEOM_MIRROR</literal> and <literal>GEOM_RAID3</literal>
	classes now support sysctl variables
	<varname>kern.geom.mirror.disconnect_on_failure</varname>
	and
	<varname>kern.geom.graid3.disconnect_on_failure</varname>
	to control whether failed components will be disconnected or not.
	The default value is <literal>1</literal> to preserve the current
	behavior, and if it is set to <literal>0</literal> such components
	are not disconnected and the kernel will try to still use them
	(only first error will be logged).
	This is helpful for the case of multiple broken components (in
	different places), so actually all data is available.
	The broken components will be visible in <command>gmirror list</command>
	or <command>graid3 list</command> output with flag
	<literal>BROKEN</literal>.
	&merged;</para>

      <para>The <literal>GEOM_MIRROR</literal> and <literal>GEOM_RAID3</literal>
	classes now use parallel I/O request for synchronization
	to improve the performance.  New sysctl variables
	<varname>kern.geom.mirror.sync_requests</varname> and
	<varname>kern.geom.raid3.sync_requests</varname>
	define how many parallel I/O requests should be used.
	Also, sysctl variables
	<varname>kern.geom.mirror.reqs_per_sync</varname>,
	<varname>kern.geom.mirror.syncs_per_sec</varname>,
	<varname>kern.geom.raid3.reqs_per_sync</varname>, and
	<varname>kern.geom.raid3.syncs_per_sec</varname>
	are deprecated and have been removed.
	&merged;</para>

      <para>A new GEOM class <literal>GEOM_ZERO</literal> has been added.
	It creates very huge provider (41PB) <filename>/dev/gzero</filename>
	and mainly for performance testing.
	On <literal>BIO_READ</literal> request it zero-fills
	<varname>bio_data</varname> and on <literal>BIO_WRITE</literal>
	it does nothing.
	&merged;</para>

      <para>The GEOM class kernel module <filename>g_md.ko</filename>
	has been renamed to <filename>geom_md.ko</filename>
	for consistency.</para>

      <para arch="amd64,i386">The &man.hptmv.4; driver has been updated and now supports
	amd64 as well as PAE.</para>

      <para>The &man.mfi.4; driver, which supports
	the LSI MegaRAID SAS controller family, has been added.
	&merged;</para>

      <para>The &man.mpt.4; driver has been updated to support
	various new features such as RAID volume and RAID member
	state/settings reporting, periodic volume re-synchronization
	status reporting, and sysctl variables for volume
	re-synchronization rate, volume member write cache status,
	and volume transaction queue depth.</para>

      <para>The &man.mpt.4; driver now supports SAS HBA (partially),
	64-bit PCI, and large data transfer.</para>

      <para>The &man.twa.4; driver has been updated to the 9.3.0.1
	release on the 3ware Web site.  &merged;</para>

      <para>A new GEOM-based disk encryption facility, GEOM_ELI, has been
	added.  It uses the &man.crypto.9; framework for hardware acceleration
	and supports different cryptographic algorithms.  See &man.geli.8; for
	more information. &merged;</para>

      <para>The &man.geli.8; now supports loading keyfiles before root
	file system is mounted.  &merged;
	For example, the following entries
	can be used in <filename>/boot/loader.conf</filename> to enable
	it:</para>

      <programlisting>geli_da0_keyfile0_load="YES"
geli_da0_keyfile0_type="da0:geli_keyfile0"
geli_da0_keyfile0_name="/boot/keys/da0.key0"
geli_da0_keyfile1_load="YES"
geli_da0_keyfile1_type="da0:geli_keyfile1"
geli_da0_keyfile1_name="/boot/keys/da0.key1"
geli_da0_keyfile2_load="YES"
geli_da0_keyfile2_type="da0:geli_keyfile2"
geli_da0_keyfile2_name="/boot/keys/da0.key2"

geli_da1s3a_keyfile0_load="YES"
geli_da1s3a_keyfile0_type="da1s3a:geli_keyfile0"
geli_da1s3a_keyfile0_name="/boot/keys/da1s3a.key"</programlisting>

      <para>The &man.umass.4; driver now supports
	<literal>PLAY_MSF</literal>,
	<literal>PLAY_TRACK</literal>,
	<literal>PLAY_TRACK_REL</literal>,
	<literal>PAUSE</literal>,
	<literal>PLAY_12</literal> commands so that
	the &man.cdcontrol.1; utility can handle USB CD drive.</para>
    </sect3>

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

      <para>A part of the FreeBSD NFS subsystem (the interface with
	the protocol stack and callouts) is now MPSAFE.</para>

      <para>An initial support of SGI's XFS filesystem has been
	added.</para>
    </sect3>

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

      <para><application>Intel ACPI-CA</application>
	has been updated to 20051021.</para>

      <para><application>DRM</application> has
	been updated to a snapshot from DRI CVS as of 20051202.  &merged;</para>

      <para>TrustedBSD <application>OpenBSM</application> distribution,
	version 1.0 alpha 5, an implementation of the documented Sun Basic
	Security Module (BSM) Audit API and file format, as well as local
	extensions to support the Mac OS X and FreeBSD operating systems
	has been added.  This also includes command line tools for audit
	trail reduction and conversion to text, as well as documentation
	of the commands, file format, and APIs.
	For this functionality, the <literal>AUDIT</literal> kernel option,
	<filename>/var/audit</filename> directory, and
	<literal>audit</literal> group have been added.</para>
    </sect3>
  </sect2>

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

    <para>Padding of <varname>ai_addrlen</varname>
      in <varname>struct addrinfo</varname> has been removed,
      which was originally for the ABI compatibility.
      For example, this change break the ABI compatibility of
      &man.getaddrinfo.3; function on 64-bit architecture including
      &os;/alpha, &os;/amd64, &os;/ia64, and &os;/sparc64.</para>

    <para>OpenBSM userland tools including &man.audit.8;,
      &man.auditd.8;,
      &man.auditreduce.1;,
      &man.praudit.1; have been added.</para>

    <para>The &man.bsdiff.1; and &man.bspatch.1; utilities
      have been added.  These are tools for constructing and
      applying binary patches.</para>

    <para>The &man.bsnmpd.1; utility now supports the Host Resources
      MIB described in RFC 2790.  &merged;</para>

    <para>The &man.cmp.1; utility now supports an <option>-h</option>
      flag to compare the symbolic link itself rather than the
      file that the link points to.</para>

    <para>The &man.config.8; utility now supports the <literal>nocpu</literal>
      directive, which cancels the effect of a
      previous <literal>cpu</literal> directive.  &merged;</para>

    <para>The &man.config.8; utility now reads <filename>DEFAULTS</filename>
      kernel configuration file if it exists in the current directory
      before the specified configuration file.  &merged;</para>

    <para>The &man.csh.1; utility now supports NLS catalog.
      Note that this requires installing
      the <filename role="package">shells/tcsh_nls</filename> port.
      &merged;</para>

    <para>The csup(1) utility has been imported.
      This is an implementation of CVSup-compatible client written
      in C language.  Note that it currently supports checkout mode
      only.</para>

    <para>The &man.devd.8; utility now supports a <option>-f</option> option
      to specify a configuration file.  &merged;</para>

    <para>The &man.ftpd.8; utility now creates a PID file
      <filename>/var/run/ftpd.pid</filename> even when
      no <option>-p</option> option is specified.  &merged;</para>

    <para>The &man.gbde.8; utility now supports
      <option>-k</option> and <option>-K</option> options
      to specify a key file in addition to a passphrase.</para>

    <para>The &man.getfacl.1; utility now supports
      a <option>-q</option> flag to suppress the per-file header
      comment listing the file name, owner, and group.
      &merged;</para>

    <para>The &man.gpt.8; utility now supports setting GPT partition labels.</para>

    <para>The &man.gvinum.8; utility now supports commands
      to rename objects and to move a subdisk from
      one drive to another.  &merged;</para>

    <para>The &man.gvinum.8; utility now supports
      <command>resetconfig</command> sub-command.</para>

    <para>An implementation of Generic Security Service API (GSS-API)
      version 2 and its C binding described in RFC2743 and RFC2744
      has been added.  This is a new extensible GSS-API layer which
      can support GSS-API plugins, similar the the Solaris
      implementation, and the Kerberos 5 GSS mechanism has
      been rewritten as a plugin library for the new implementation.</para>

    <para>The &man.ifconfig.8; utility now supports
      a <option>-k</option> flag to allow printing
      potentially sensitive keying material to standard output.
      This sensitive information will not be printed by default.</para>

    <para>The &man.ifconfig.8; utility now supports a <option>-tunnel</option>
      parameter, which is just an alias for <option>deletetunnel</option>,
      yet is more convenient and easier to type.</para>

    <para>The <option>-vlandev</option> parameter to &man.ifconfig.8;
      no longer requires a network interface as its argument.  The
      argument still is supported for backward compatibility, but now
      it is deprecated and its use is discouraged.</para>

    <para>The &man.jail.8; utility pports a <option>-J
	<replaceable>jid_file</replaceable></option> option to
      write out a JidFile, similar to a PidFile, containing
      the jailid, path, hostname, IP and the command used to start
      the jail.  &merged;</para>

    <para>The &man.kdump.1; utility now supports a <option>-H</option>
      flag, which causes kdump to print an additional field holding
      the threadid.  &merged;</para>

    <para>The &man.kdump.1; program now supports a <option>-s</option>
      flag to suppress the display of I/O data.  &merged;</para>

    <para>The &man.kenv.1; utility now supports a <option>-q</option>
      flag to suppress warnings.</para>

    <para>The &man.kgdb.1; now supports a <option>-w</option>
      option to open kmem-based targets in read-write mode.
      This allows one to use kgdb on <filename>/dev/mem</filename>
      and be able to patch memory on a live system.</para>

    <para>The &man.libarchive.3; library now supports
      POSIX.1e-style Extended Attribute.</para>

    <para>The <application>libc</application> library now includes
      initial implementation of symbol maps and symbol version
      definitions.</para>

    <para>The <application>libedit</application> library has been
      updated from the NetBSD source tree as of August 2005.</para>

    <para>The <application>libm</application> library now includes
      initial implementation of symbol maps and symbol version
      definitions.</para>

    <para>The &man.libmemstat.3; library has been added.
      This is for use by debugging and monitoring applications
      in tracking kernel memory statistics.  It provides an
      abstracted interface to &man.uma.9; and &man.malloc.9;
      statistics, wrapped around the binary stream sysctl variables
      for the allocators. &merged;</para>

    <para>The &man.ln.1; utility now supports
      an <option>-F</option> flag which allows to delete existing
      empty directories, when creating symbolic links.
      &merged;</para>

    <para>The &man.locate.1; utility now supports
      a <option>-0</option> flag to make this utility
      interoperable with &man.xargs.1;'s <option>-0</option> flag.
      &merged;</para>

    <para>The &man.ls.1; utility now supports
      an <option>-I</option> flag to disable the automatic
      <option>-A</option> flag for the superuser.  &merged;</para>

    <para>The &man.ls.1; utility now supports
      an <option>-U</option> flag to use the file creation
      time for sorting.</para>

    <para>The &man.mdconfig.8; utility now supports XML
      output of the device listing.  Currently
      <command>list</command> and <command>query</command>
      sub-command support this feature.</para>

    <para>The &man.mdconfig.8; utility's <option>-u</option> option
      now supports specifying multiple devices separated
      by comma character.</para>

    <para>The &man.mdmfs.8; utility now supports a <option>-P</option> flag
      to allow skipping &man.newfs.8; process
      when using a vnode-backed disk.</para>

    <para>The &man.mdmfs.8; utility now supports a <option>-E</option> flag
      to allow to specify location of the &man.mdconfig.8;
      utility instead of using the default one
      (<filename>/sbin/mdconfig</filename>).</para>

    <para>A new function &man.memmem.3; has been implemented in
      <filename>libc</filename>.  This is the binary equivalent to
      &man.strstr.3; and found in <filename>glibc</filename>.</para>

    <para>The &man.mergemaster.8; utility now supports
      an <option>-A</option> option to explicitly specify
      an architecture to pass through to the underlying makefiles.
      &merged;</para>

    <para>The &man.mount.8; <literal>nodev</literal> option has
      been removed.</para>

    <para>The &man.mount.8; now supports &man.mqueuefs.5;.</para>

    <para>The &man.moused.8; daemon now supports an <option>-H</option> flag
      to enable horizontal virtual scrolling similar to a
      <option>-V</option> flag for vertical virtual scrolling.
      &merged;</para>

    <para>The &man.netstat.1; utility now supports an
      <option>-h</option> flag for interface stats mode,
      which prints all interface statistics in human readable form.</para>

    <para>The &man.netstat.1; utility now supports
      printing &man.ipsec.4; protocol statistics if the
      kernel was compiled with <literal>FAST_IPSEC</literal>
      rather than the KAME IPSEC stack.
      Note that the output of <command>netstat -s -p ipsec</command>
      differs depending on which stack is compiled into
      the kernel since they each keep different statistics.  &merged;</para>

    <para>The &man.periodic.8; daily script now supports
      display of the status of &man.gmirror.8;, &man.graid3.8;,
      &man.gstripe.8;, and &man.gconcat.8; devices.
      Note that these are disabled by default.  &merged;</para>

    <para>A new function, &man.pidfile.3;, which provides reliable
      pidfiles handling, has been implemented in
      <filename>libutil</filename>.  &merged;</para>

    <para>The &man.ping.8; utility now supports <quote>a sweeping
	ping</quote> in which &man.icmp.4; payload of
      packets being sent is increased with given step.
      This is useful for testing problematic channels, MTU issues
      or traffic policing functions in networks.</para>

    <para>The &man.pkill.1; utility now supports a
      <option>-F</option> option which allows to
      restrict matches to a process whose PID is stored in the
      pidfile file.  When another new option <option>-L</option>
      is also specified, the pidfile file must be locked with the
      &man.flock.2; syscall or created with &man.pidfile.3;.</para>

    <para>The &man.pkill.1; utility now supports a
      <option>-I</option> flag which works like <option>-i</option>
      of &man.rm.1;.  When this flag is specified, &man.pkill.1;
      will ask for confirmation before sending a signal to
      each matching process.</para>

    <para>The &man.powerd.8; program now supports a
      <option>-P</option> option which allows to specify pidfile.</para>

    <para>The DNS resolver library in &os;'s <application>libc</application>
      has been updated to BIND9's one.</para>

    <para>The &man.rfcomm.sppd.1; now supports service name
      in addition to <option>-c</option> option with channel number.
      The supported names are: DUN (Dial-Up Networking), FAX (Fax),
      LAN (LAN Access Using PPP), and SP (Serial Port).  &merged;</para>

    <para>The &man.rpcgen.1; utility now generates headers and stub files
      which can be used with ANSI C compilers by default.</para>

    <para>The &man.rtld.1; runtime linker now supports ELF symbol versioning
      using GNU semantics.  This implementation aims to be compatible
      with symbol versioning support as implemented by GNU libc and
      documented in <ulink url="http://people.redhat.com/~drepper/symbol-versioning"></ulink>
      and LSB 3.0.  Also, <function>dlvsym()</function>
      function has been added to
      allow lookups for a specific version of a given symbol.</para>

    <para>The &man.sh.1; utility now supports <literal>times</literal>
      built-in command.</para>

    <para>The &man.snapinfo.8; utility, which shows snapshot locations
      on UFS filesystems, has been added.  &merged;</para>

    <para>The &man.strtonum.3; library function has been implemented
      based on OpenBSD's implementation.  This is an improved version of
      &man.strtoll.3;.  &merged;</para>

    <para>The &man.sysctl.8; utility now supports a <option>-q</option>
      flag to suppress a limited set of warnings and errors.</para>

    <para>The &man.truss.1; utility now supports an <option>-s</option>
      flag for the same functionality as the strace utility
      (<filename role="package">devel/strace</filename>).</para>

    <para arch="ppc">The &man.truss.1; utility now supports &os;/ppc.</para>

    <para>The &man.usbd.8; utility has been removed.
      The &man.devd.8; utility and its configuration
      file now support functionality which is equivalent to it.</para>

    <para>The &man.xargs.1; utility now supports a <option>-r</option>
      flag which makes the command execution when the standard input
      does not contain any non-whitespace-characters.  &merged;</para>

    <para>The shared library version number of all libraries have
      been updated due to some possible ABI changes.  The libraries
      include: snmp_*, libdialog, libg2c, libobjc,
      libreadline, libregex, libstdc++, libkrb5, libalias, libarchive,
      libbegemot, libbluetooth, libbsnmp, libbz2, libc_r, libcrypt,
      libdevstat, libedit, libexpat, libfetch, libftpio, libgpib,
      libipsec, libkiconv, libmagic, libmp, libncp, libncurses,
      libnetgraph, libngatm, libopie, libpam, libpthread, libradius,
      libsdp, libsmb, libtacplus, libthr, libthread_db, libugidfw,
      libusbhid, libutil, libvgl, libwrap, libypclnt, libm, libcrypto,
      libssh, and libssl.</para>

    <para>The <function>wcsdup()</function> function has been
      implemented.  This function is popular in Microsoft and GNU
      systems.</para>

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

      <para>The <filename>auditd</filename> script for
	OpenBSM &man.auditd.8; has been added.</para>

      <para>The <filename>bluetooth</filename> script
	has been added.  This script will be called from
	&man.devd.8; in response to device attachment/detachment
	events and to stop/start particular device without unplugging
	it by hand.  The configuration parameters are in
	<filename>/etc/defaults/bluetooth.device.conf</filename>,
	and can be overridden by using
	<filename>/etc/bluetooth/<replaceable>$device</replaceable>.conf</filename>
	(where <replaceable>$device</replaceable> is <devicename>ubt0</devicename>,
	<devicename>btcc0</devicename>, and so on.)
	For more details, see &man.bluetooth.conf.5;.  &merged;</para>

      <para>The <filename>ftpd</filename> script for
	stand-alone &man.ftpd.8; has been added.</para>

      <para>The <filename>gbde_swap</filename> script has
	been removed in favor a new <filename>encswap</filename>
	script which also supports &man.geli.8; for swap
	encryption.</para>

      <para>The <filename>geli</filename> and <filename>geli2</filename>
	scripts has been added for &man.geli.8; device
	configuration on boot.</para>

      <para>The <filename>ike</filename> script for
	IPsec IKE daemon has been removed because no such daemon
	is included in the base system.</para>

      <para>The <filename>hcsecd</filename> and
	<filename>sdpd</filename> scripts have been added
	for &man.hcsecd.8; and &man.sdpd.8; daemons.
	These daemons can run even if no Bluetooth devices
	are attached to the system, but both daemons depend on
	Bluetooth socket layer and thus disabled by default.
	Bluetooth sockets layer must be either loaded
	as a module or compiled into kernel before the daemons can run.
	&merged;</para>

      <para>The <filename>hostapd</filename> script for
	&man.hostapd.8; has been added.  &merged;</para>

      <para>The <filename>netif</filename> script now supports
	<varname>ipv4_addrs_<replaceable>ifn</replaceable></varname>,
	which adds one or more IPv4 address from a ranged list in
	CIRD notation.  &merged;  For example:</para>

      <programlisting>ipv4_addrs_ed0="192.168.0.1/24 192.168.1.1-5/28"</programlisting>

      <para>The <filename>rcconf.sh</filename> in <filename>/etc/rc.d</filename>
	has been removed and a variable <varname>early_late_divider</varname>,
	which designates the script to separate the early and late stages
	of the boot process, has been added.</para>

      <para>The <filename>rc.initdiskless</filename> now uses &man.tar.1;
	instead of &man.pax.1; because the &man.pax.1; needs a writable
	temporary directory.</para>

      <para>The <filename>pccard</filename> script has been removed
	since OLDCARD is deprecated.</para>

      <para>The <filename>ppp-user</filename> script has been renamed to
	<filename>ppp</filename>.  &merged;</para>

      <para>The <varname>removable_interfaces</varname> variable
	has been removed.</para>

      <para>A new keyword <literal>NOAUTO</literal> in
	<varname>ifconfig_<replaceable>ifn</replaceable></varname>
	has been added. This prevents configuration of an interface
	at boot time or via <filename>/etc/pccard_ether</filename>,
	and allows <filename>/etc/rc.d/netif</filename>
	to be used to start and stop an interface
	on a purely manual basis.</para>
    </sect3>
  </sect2>

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

    <para><application>BIND</application> has been updated from 9.3.1
      to 9.3.2. &merged;</para>

    <para><application>BSNMPD</application> has been updated from
      1.11 to 1.12.</para>

    <para><application>GNU Readline library</application>
      has been updated from 5.0 to 5.1.</para>

    <para><application>GNU Troff</application>
      has been updated from version 1.19 to version 1.19.2.
      &merged;</para>

    <para><application>IPFilter</application> has been updated from
      4.1.8 to 4.1.10.</para>

    <para><application>OpenSSH</application> has been updated from
      4.2p1 to 4.3p1.</para>

    <para><application>hostapd</application>
      has been updated from version 0.3.9 to version 0.4.8.
      &merged;</para>

    <para><application>sendmail</application> has been updated from
      8.13.4 to 8.13.6. &merged;</para>

    <para>The timezone database has been updated from the
      <application>tzdata2005l</application> release to the
      <application>tzdata2005r</application> release. &merged;</para>

    <para><application>WPA Supplicant</application>
      has been updated from version 0.3.9 to version 0.4.8.
      &merged;</para>

    <para><application>zlib</application>
      has been updated from version 1.2.2 to version 1.2.3.</para>
  </sect2>

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

    <para>The &man.pkg.add.1; now supports an <option>-F</option>
      flag to disable checking whether the same package is already
      installed or not.</para>

    <para>The &man.pkg.add.1; program now supports an <option>-P</option>
      flag, which is the same as the <option>-p</option> flag
      except that the given prefix is also used recursively for the
      dependency packages if any.  &merged;</para>

    <para>The &man.pkg.add.1; and &man.pkg.create.1; utilities now support
      a <option>-K</option> flag to save packages to the current directory
      (or <varname>PKGDIR</varname> if defined) by default.
      &merged;</para>

    <para>The &man.pkg.create.1; program now supports an <option>-x</option>
      flag to support basic regular expressions for package name,
      an <option>-E</option> flag for extended regular
      expressions, and a <option>-G</option> for exact matching.  &merged;</para>

    <para>The &man.pkg.version.1; utility now supports an <option>-o</option>
      flag to show the origin recorded on package generation
      instead of the package name, and an <option>-O</option> flag
      to list packages whose registered origin is origin only.
      &merged;</para>

    <para>The &man.portsnap.8; utility (<filename>sysutils/portsnap</filename>)
      has been added into the &os; base system.  This is a secure,
      easy to use, fast, lightweight, and generally good way for
      users to keep their ports trees up to date.  &merged;</para>

    <para>A incorrect handling of <varname>HTTP_PROXY_AUTH</varname>
      in the &man.portsnap.8; utility has been fixed.  &merged;</para>

    <para>The startup scripts from the <varname>local_startup</varname>
      directory now evaluated by using &man.rcorder.8; with scripts
      in the base system.  &merged;</para>

    <para>The suffix of startup scripts from the Ports Collection
      has been removed.  This means <filename>foo.sh</filename>
      is renamed to <filename>foo</filename>, and now
      scripts whose name is something like
      <filename>foo.ORG</filename> will also be invoked.
      You are recommended to reinstall packages which install
      such scripts and remove extra files in the
      <varname>local_startup</varname> directory.  &merged;</para>

    <para>New <filename>rc.conf</filename> variables,
      <varname>ldconfig_local_dirs</varname> and
      <varname>ldconfig_local32_dirs</varname> have been added.
      These hold lists of local &man.ldconfig.8; directories.
      &merged;</para>

    <para>The <command>@cwd</command> command in
      <filename>pkg-plist</filename> now allows
      no directory argument.  If no
      directory argument is given, it will set current
      working directory to the first prefix given by the
      <command>@cwd</command> command.  &merged;</para>
  </sect2>

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

    <para>The default partition sizing algorithm of the
      &man.sysinstall.8; utility has been changed.</para>

    <itemizedlist>
      <listitem>
	<para>On systems where the disk capacity is larger than (3 * RAMsize + 10GB),
	  the default sizes will now be as follows:</para>

	<informaltable frame="none" pgwide="0">
	  <tgroup cols="2">
	    <colspec colwidth="1*">
	    <colspec colwidth="2*">
	    <thead>
	      <row>
		<entry>Partition</entry>
		<entry>Size</entry>
	      </row>
	    </thead>

	    <tbody>
	      <row><entry>swap</entry><entry>RAMsize * 2</entry></row>
	      <row><entry><filename>/</filename></entry><entry>512 MB</entry></row>
	      <row><entry><filename>/tmp</filename></entry><entry>512 MB</entry></row>
	      <row><entry><filename>/var</filename></entry><entry>1024 MB + RAMsize</entry></row>
	      <row><entry><filename>/usr</filename></entry><entry>the rest (8GB or more)</entry></row>
	    </tbody>
	  </tgroup>
	</informaltable>
      </listitem>

      <listitem>
	<para>On systems where the disk capacity is larger than
	  (RAMsize / 8 + 2 GB), the default sizes will be
	  in the following ranges, with space allocated
	  proportionally:</para>

	<informaltable frame="none" pgwide="0">
	  <tgroup cols="2">
	    <colspec colwidth="1*">
	    <colspec colwidth="2*">
	    <thead>
	      <row>
		<entry>Partition</entry>
		<entry>Size</entry>
	      </row>
	    </thead>

	    <tbody>
	      <row><entry>swap</entry><entry>from RAMsize / 8 to RAMsize * 2</entry></row>
	      <row><entry><filename>/</filename></entry><entry>from 256MB to 512MB</entry></row>
	      <row><entry><filename>/tmp</filename></entry><entry>from 128MB to 512MB</entry></row>
	      <row><entry><filename>/var</filename></entry><entry>from 128MB to 1024MB</entry></row>
	      <row><entry><filename>/usr</filename></entry><entry>from 1536MB to 8192MB</entry></row>
	    </tbody>
	  </tgroup>
	</informaltable>
      </listitem>

      <listitem>
	<para>On systems with even less disk space, the existing behavior is not
	  changed.</para>
      </listitem>
    </itemizedlist>

    <para>A bug that <filename>CHECKSUM.MD5</filename> includes
      an incorrect checksum of the file itself has been fixed.</para>

    <para>A new &man.make.1; target <command>make showconfig</command>
      has been added in <filename>src/Makefile</filename>
      to show build configuration of the &os; source tree.</para>

    <para>The <filename>src.conf</filename> file, which
      contains settings that will apply to every build involving
      the &os; source tree, has been added.
      For details, see &man.build.7; and &man.src.conf.5;.</para>

    <para>The supported version of
      the <application>GNOME</application> desktop environment
      (<filename role="package">x11/gnome2</filename>) has been
      updated from 2.10.2 to 2.12.3. &merged;</para>

    <para>The supported version of
      the <application>KDE</application> desktop environment
      (<filename role="package">x11/kde3</filename>) has been
      updated from 3.4.2 to 3.5.1. &merged;</para>

    <para>The supported version of
      the <application>Perl</application> interpreter
      (<filename role="package">lang/perl5.8</filename>) has been updated
      from 5.8.7 to 5.8.8. &merged;</para>

    <para>The supported version of
      the <application>&xorg;</application> windowing system
      (<filename role="package">x11/xorg</filename>) has been updated
      from 6.8.2 to 6.9.0. &merged;</para>
  </sect2>

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

    <para>Documentation of existing functionality has been improved by
      the addition of the following manual pages:
      &man.acpi.sony.4;, &man.snd.mss.4;, &man.snd.t4dwave.4;.</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>