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<h2>
<a href="index.html">
<i><font color="#0000ff">Open</font></i><font color="#000084">BSD</font></a>
<font color="#e00000">6.3</font>
</h2>

<a href="images/XXX.gif">
<img align="left" width="227" height="343" hspace="24" src="images/XXX.gif"></a>
Released Apr 15, 2018<br>
Copyright 1997-2018, Theo de Raadt.<br>
<br>
<br>
6.3 Song: XXX.

<br>
<ul>
<li>See the information on <a href="ftp.html">the FTP page</a> for
    a list of mirror machines.
<li>Go to the <font color="#e00000">pub/OpenBSD/6.3/</font> directory on
    one of the mirror sites.
<li>Have a look at <a href="errata63.html">the 6.3 errata page</a> for a list
    of bugs and workarounds.
<li>See a <a href="plus63.html">detailed log of changes</a> between the
    6.2 and 6.3 releases.
<p>
<li><a href="https://man.openbsd.org/signify.1">signify(1)</a>
    pubkeys for this release:<br>
<pre>
base: RWRxzbLwAd76ZZxHU7wuIFUOVGwl6SjNNzanKWTql8w+hui7WLE/72mW
fw:   RWT3tdmiAc+DH/CJOxPFT10kUM90/UcLTgSEUEKzhKm9QEhy+UD4CWPy
pkg:  RWT58k1AWz/zZO9DHcPHXiHhDNP6hdwGjxNkyMoc/sh4O5NI8Zz1R1lD
</pre>
<p>
All applicable copyrights and credits are in the src.tar.gz,
sys.tar.gz, xenocara.tar.gz, ports.tar.gz files, or in the
files fetched via ports.tar.gz.
</ul>
<br clear=all>

<hr>

<h3 id="new"><font color="#0000e0">What's New</font></h3>

This is a partial list of new features and systems included in OpenBSD 6.3.
For a comprehensive list, see the <a href="plus63.html">changelog</a> leading
to 6.3.

<ul>

<li>Improved hardware support, including:
    <ul>
    <li>SMP support on OpenBSD/arm64 platforms.
    <li>VFP and NEON support on OpenBSD/armv7 platforms.
    <li>New <a href="https://man.openbsd.org/acrtc.4">acrtc(4)</a> driver
       for X-Powers AC100 audio codec and Real Time Clock.
    <li>New <a href="https://man.openbsd.org/axppmic.4">axppmic(4)</a> driver
       for X-Powers AXP Power Management ICs.
    <li>New <a href="https://man.openbsd.org/bcmrng.4">bcmrng(4)</a> driver
       for Broadcom BCM2835/BCM2836/BCM2837 random number generator.
    <li>New <a href="https://man.openbsd.org/bcmtemp.4">bcmtemp(4)</a> driver
       for Broadcom BCM2835/BCM2836/BCM2837 temperature monitor.
    <li>New <a href="https://man.openbsd.org/bgw.4">bgw(4)</a> driver
       for Bosch motion sensor.
    <li>New <a href="https://man.openbsd.org/bwfm.4">bwfm(4)</a> driver
       for Broadcom and Cypress FullMAC 802.11 devices.
    <li>New <a href="https://man.openbsd.org/efi.4">efi(4)</a> driver
       for EFI runtime services.
    <li>New <a href="https://man.openbsd.org/imxanatop.4">imxanatop(4)</a> driver
       for i.MX6 integrated regulator.
    <li>New <a href="https://man.openbsd.org/rkpcie.4">rkpcie(4)</a> driver
       for Rockchip RK3399 Host/PCIe bridge.
    <li>New <a href="https://man.openbsd.org/sxirsb.4">sxirsb(4)</a> driver
       for Allwinner Reduced Serial Bus controller.
    <li>New <a href="https://man.openbsd.org/sxitemp.4">sxitemp(4)</a> driver
       for Allwinner temperature monitor.
    <li>New <a href="https://man.openbsd.org/sxits.4">sxits(4)</a> driver
       for temperature sensor on Allwinner A10/A20 touchpad controller.
    <li>New <a href="https://man.openbsd.org/sxitwi.4">sxitwi(4)</a> driver
       for two-wire bus found on several Allwinner SoCs.
    <li>New <a href="https://man.openbsd.org/sypwr.4">sypwr(4)</a> driver
       for the Silergy SY8106A regulator.
    <li>Support for Rockchip RK3328 SoCs has been added to the 
        <a href="https://man.openbsd.org/dwge.4">dwge(4)</a>,
        <a href="https://man.openbsd.org/rkgrf.4">rkgrf(4)</a>,
	<a href="https://man.openbsd.org/rkclock.4">rkclock(4)</a> and
	<a href="https://man.openbsd.org/rkpinctrl.4">rkpinctrl(4)</a>
	drivers.
    <li>Support for Rockchip RK3228/3328 SoCs has been added to the 
        <a href="https://man.openbsd.org/rktemp.4">rktemp(4)</a>
	driver.
    <li>Support for Allwinner A10/A20, A23/A33, A80 and R40/V40
        SoCs has been added to the
	<a href="https://man.openbsd.org/sxiccmu.4">sxiccmu(4)</a> driver.
    <li>Support for Allwinner A33, GR8 and R40/V40 SoCs has been
        added to the
	<a href="https://man.openbsd.org/sxipio.4">sxipio(4)</a> driver.
    <li>Support for SAS3.5 MegaRAIDs has been added to the
        <a href="https://man.openbsd.org/mfii.4">mfii(4)</a> driver.
    <li>Support for Intel Cannon Lake and Ice Lake integrated Ethernet
        has been added to the
        <a href="https://man.openbsd.org/em.4">em(4)</a> driver.
    <li><a href="https://man.openbsd.org/cnmac.4">cnmac(4)</a> ports are now
        assigned to different CPU cores for distributed interrupt processing.
    <li>The <a href="https://man.openbsd.org/pms.4">pms(4)</a> driver now
        detects and handles reset announcements.
    <li>On amd64 Intel CPU microcode is loaded on boot and installed/updated by
        <a href="https://man.openbsd.org/fw_update.1">fw_update(1)</a>.
    <li>Support the sun4v hypervisor interrupt cookie API, adding support
        for SPARC T7-1/2/4 machines.
    <li>Hibernate support has been added for SD/MMC storage attached to
        <a href="https://man.openbsd.org/sdhc.4">sdhc(4)</a> controllers.
    </ul>

<p>
<li><a href="https://man.openbsd.org/amd64/vmm.4">vmm(4)</a>/
    <a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> improvements:
    <ul>
    <li>Add CD-ROM/DVD ISO support to <a
        href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> via <a
	href="https://man.openbsd.org/vioscsi.4">vioscsi(4)</a>.
    <li><a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> no longer
	creates an underlying bridge interface for virtual switches defined in
	<a href="https://man.openbsd.org/amd64/vm.conf.5">vm.conf(5)</a>.
    <li><a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> receives
	switch information (rdomain, etc) from underlying switch interface in
	conjunction of settings in <a
	href="https://man.openbsd.org/amd64/vm.conf.5">vm.conf(5)</a>.
    <li>Time Stamp Counter (TSC) support in guest VMs.
    <li>Support ukvm/Solo5 unikernels in
        <a href="https://man.openbsd.org/amd64/vmm.4">vmm(4)</a>.
    <li>Handle valid (but uncommon) instruction encodings better.
    <li>Better PAE paging support for 32-bit Linux guest VMs.
    <li><a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> now allows up
        to four network interfaces in each VM.
    <li>Add paused migration and snapshotting support to <a
        href="https://man.openbsd.org/amd64/vmm.4">vmm(4)</a> for AMD SVM/RVI
        hosts.
    <li>BREAK commands sent over a
     <a href="https://man.openbsd.org/pty.4">pty(4)</a> are now understood by
     <a href="https://man.openbsd.org/vmd.8">vmd(8)</a>.
    <li>Many fixes to <a href="https://man.openbsd.org/amd64/vmctl.8">vmctl(8)</a>
        and <a href="https://man.openbsd.org/amd64/vmd.8">vmd(8)</a> error handling.
    </ul>
<p>

<li>IEEE 802.11 wireless stack improvements:
    <ul>
    <li>The <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and
	<a href="https://man.openbsd.org/iwn.4">iwn(4)</a> drivers will
	automatically roam between access points which share an ESSID.
        Forcing a particular AP's MAC address with ifconfig's <b>bssid</b>
        command disables roaming.
    <li>Automatically clear configured WEP/WPA keys when a new network ESSID
	is configured.
    <li>Removed the ability for userland to read configured WEP/WPA keys back
	from the kernel.
    <li>The <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> driver can now
	connect to networks with a hidden SSID.
    <li>USB devices supported by the
	<a href="https://man.openbsd.org/athn.4">athn(4)</a> driver
        now use an open source firmware, and hostap mode now works with
	these devices.
    </ul>
<p>

<li>Generic network stack improvements:
    <ul>
    <li>The network stack no longer runs with the KERNEL_LOCK() when IPsec is
        enabled.
    <li>Processing of incoming TCP/UDP packets is now done without
        KERNEL_LOCK().
    <li>The socket splicing task runs without KERNEL_LOCK().
    <li>Cleanup and removal of code in sys/netinet6 since autoconfiguration
        runs in userland now.
    <li><a href="https://man.openbsd.org/bridge.4">bridge(4)</a> members can
        now be prevented to talk to each others with the new <b>protected</b>
        option.
    <li>The pf divert-packet feature has been simplified.
	The IP_DIVERTFL socket option has been removed from <a
	href="https://man.openbsd.org/divert.4">divert(4)</a>.
    <li>Various corner cases of pf divert-to and divert-reply are
	more consistent now.
    <li>Enforce in <a href="https://man.openbsd.org/pf.4">pf(4)</a>
	that all neighbor discovery packets have 255 in their IPv6
	header hop limit field.
    </ul>
<p>

<li>Installer improvements:
    <ul>
    <li>...
    </ul>
<p>

<li>Routing daemons and other userland network improvements:
    <ul>
    <li><a href="https://man.openbsd.org/bgpctl.8">bgpctl(8)</a> has a new
        <b>ssv</b> option which outputs rib entries as a single semicolon-separated
        like for selection before output.
    <li><a href="https://man.openbsd.org/slaacd.8">slaacd(8)</a> generates
        random but stable IPv6 stateless autoconfiguration addresses according
        to RFC 7217.
        These are enabled per default in accordance with RFC 8064.
    <li><a href="https://man.openbsd.org/slaacd.8">slaacd(8)</a> can generate
        RFC 7217 (random but stable) and RFC 4941 (privacy) style stateless
        autoconfiguration addresses on non-/64 prefixes.
    <li><a href="https://man.openbsd.org/ospfd.8">ospfd(8)</a> can now set the
        metric for a route depending on the status of an interface.
    <li><a href="https://man.openbsd.org/ifconfig.8">ifconfig(8)</a> has a new
        <b>staticarp</b> option to make interfaces reply to ARP requests only.
    <li><a href="https://man.openbsd.org/ipsecctl.8">ipsecctl(8)</a> can now
        collapse flow outputs having the same source or destination.
    <li>The <tt>-n</tt> option in the
        <a href="https://man.openbsd.org/netstart.8">netstart(8)</a> no longer
        messes with the default route.
        It is now documented as well.
    </ul>
<p>

<li>Security improvements:
    <ul>
    <li>Use even more trap-sleds on various architectures.
    <li>More use of .rodata for constant variables in assembly source.
    <li>Stop using x86 "repz ret" in dusty corners of the tree.
    <li>Introduce "execpromises" in
        <a href="https://man.openbsd.org/pledge.2">pledge(2)</a>.
    <li>Prepare for the introduction of <b>MAP_STACK</b> to 
        <a href="https://man.openbsd.org/mmap.2">mmap(2)</a> after 6.3.
    <li>Push a small piece of KARL-linked kernel text into the random
        number generator as entropy at startup.
    <li>Put a small random gap at the top of thread stacks, so that attackers
        have yet another calculation to perform for their ROP work.
    <li>Mitigation for Meltdown vulnerability for Intel brand amd64 CPUs.
    <li>OpenBSD/arm64 now uses kernel page table isolation to mitigate
        Spectre variant 3 (Meltdown) attacks.
    <li>OpenBSD/armv7 and OpenBSD/arm64 now flush the Branch Target
        Cache (BTB) on processors that do speculative execution to
        mitigate Spectre variant 2 attacks.
    </ul>
<p>

<li><a href="https://man.openbsd.org/dhclient.8">dhclient(8)</a> improvements:
    <ul>
      <li>Parsing <a href="https://man.openbsd.org/dhclient.conf.5">
	dhclient.conf(5)</a> no longer leaks SSID strings, strings that are
	too long for the parsing buffer or repeated string options and commands.
      <li>Storing leases in <a href="https://man.openbsd.org/dhclient.conf.5">
	  dhclient.conf(5)</a> is no longer supported.
      <li>'DENY' is no longer valid in  <a href="https://man.openbsd.org/dhclient.conf.5">
	  dhclient.conf(5)</a>.
      <li><a href="https://man.openbsd.org/dhclient.conf.5">
	  dhclient.conf(5)</a> and
	<a href="https://man.openbsd.org/dhclient.leases.5">
	  dhclient.leases(5)</a>
	parsing error messages have been simplified and clarified, with
	improved behaviour in the presence of unexpected semicolons.
      <li>More care is taken to only use configuration information that was
	successfully parsed.
      <li>'-n' has been added, which causes
	<a href="https://man.openbsd.org/dhclient.8">
	  dhclient(8)</a> to exit after parsing
	<a href="https://man.openbsd.org/dhclient.conf.5">
	  dhclient.conf(5)</a>.
      <li>Default routes in options classless-static-routes (121) and
	classless-ms-static-routes (249) are now correctly represented in
	<a href="https://man.openbsd.org/dhclient.leases.5">
	  dhclient.leases(5)</a> files.
    <li>Overwrite the file specified with '-L' rather than appending to it.
    <li>Leases in <a href="https://man.openbsd.org/dhclient.leases.5">
	dhclient.leases(5)</a> now contain an 'epoch' attribute recording
      the time the lease was accepted, which is used to calculate correct
      renewal, rebinding and expiry times.
    <li>No longer nag about underscores in names violating RFC 952.
    <li>Unconditionally send host-name information when
      requesting a lease, eliminating the need for
	<a href="https://man.openbsd.org/dhclient.conf.5">
	  dhclient.conf(5)</a> in the default installation.
    <li>Be quiet by default. '-q' has been removed and '-v' added to
      enable verbose logging.
    <li>Decline duplicate offers for the requested address.
    <li>Unconditionally go into the background after link-timeout seconds.
    <li>Significantly reduce logging when being quiet, but make '-v' log
      all debug information without needing to compile a custom executable.
    <li>Ignore 'interface' statements in
	<a href="https://man.openbsd.org/dhclient.leases.5">
	  dhclient.leases(5)</a> and assume all leases in the file are
	for the interface being configured.
    <li>Display the source of the lease bound to the interface.
    <li>'ignore', 'request' and 'require' declarations in
	<a href="https://man.openbsd.org/dhclient.conf.5">
	  dhclient.conf(5)</a> now add the specified options to the relevant
	list rather than replacing the list.
    <li>Eliminate a startup race that could result in
      	<a href="https://man.openbsd.org/dhclient.8">
	  dhclient(8)</a> exiting without configuring the interface.
    </ul>
<p>

<li>Assorted improvements:
    <ul>
    <li>Code reorganization and other improvements to
        <a href="https://man.openbsd.org/malloc.3">malloc(3)</a>
	and friends to make them more efficient.
    <li>When performing suspend or hibernate operations, ensure all filesystems
        are properly synchronized and marked clean, or if they cannot be
        put into perfectly clean state on disk (due to open+unlinked files)
        then mark them dirty, so that a failed resume/unhibernate is guaranteed
	to perform <a href="https://man.openbsd.org/fsck.8">fsck(8)</a>.
    <li><a href="https://man.openbsd.org/acme-client.1">acme-client(1)</a>
        autodetects the agreement URL and follows 30x HTTP redirects.
    <li>Added __cxa_thread_atexit() to support modern C++ tool chains.
    <li>Added EVFILT_DEVICE support to
	<a href="https://man.openbsd.org/kqueue.2">kqueue(2)</a> for
	monitoring changes to
	<a href="https://man.openbsd.org/drm.4">drm(4)</a> devices.
    <li><a href="https://man.openbsd.org/ldexp.3">ldexp(3)</a> now handles
      the sign of denormal numbers correctly on mips64.
    <li><a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a> now ensures the
      validity of MBR partition offsets entered while editing.
    <li><a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a> now ensures that
      default values lie within the valid range.
    <li><a href="https://man.openbsd.org/less.1">less(1)</a> now splits only
      the environment variable LESS on '$'.
    <li><a href="https://man.openbsd.org/less.1">less(1)</a> no longer creates
      a spurious file when encountering '$' in the initial command.
    <li><a href="https://man.openbsd.org/softraid.4">softraid(4)</a> now validates
      the number of chunks when assembling a volume, ensuring the on-disk
      and in-memory metadata are in sync.
    <li><a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> now
      always offers to edit an FFS partition's fragment size before offering to
      edit the blocksize.
    <li><a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> now
      allows editing the cylinders/group (cpg) attribute whenever the partition
      blocksize can be edited.
    <li><a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> now
      detects ^D and invalid input during (R)esize commands.
    <li><a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> now
      detects underflows and overflows when -/+ operators are used.
    <li><a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> now
      avoids an off-by-one when calculating the number of cylinders in a free
      chunk.
    <li><a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a> now
      validates the requested partition size against the size of the largest free
      chunk instead of the total free space.
    <li>Support for dumping USB transfers via
        <a href="https://man.openbsd.org/bpf.4">bpf(4)</a>.
    <li><a href="https://man.openbsd.org/tcpdump.8">tcpdump(8)</a> can now
        understand dumps of USB transfers in the
        <a href="http://desowin.org/usbpcap/captureformat.html">USBPcap</a>
        format.
    <li>The default prompts of <a href="https://man.openbsd.org/csh.1">csh(1)</a>,
        <a href="https://man.openbsd.org/ksh.1">ksh(1)</a> and
        <a href="https://man.openbsd.org/sh.1">sh(1)</a> now include the hostname.
    <li>Memory allocation in
        <a href="https://man.openbsd.org/ksh.1">ksh(1)</a> was switched from
        <a href="https://man.openbsd.org/calloc.3">calloc(3)</a> back to
        <a href="https://man.openbsd.org/malloc.3">malloc(3)</a>,
        making it easier to recognize uninitialized memory.
        As a result, a history-related bug in emacs editing mode was discovered
        and fixed.
    <li>The <a href="https://man.openbsd.org/printf.3">printf(3)</a> format
        string is no longer validated when looking for <tt>%</tt> formats.
        Based on a commit by android and following most other operating systems.
    <li>Improved error checking in
        <a href="https://man.openbsd.org/vfwprintf.3">vfwprintf(3)</a>.
    <li>Many base programs have been audited and fixed for stale file descriptors,
        including
        <a href="https://man.openbsd.org/cron.8">cron(8)</a>,
        <a href="https://man.openbsd.org/ftp.1">ftp(1)</a>,
        <a href="https://man.openbsd.org/mandoc.1">mandoc(1)</a>,
        <a href="https://man.openbsd.org/openssl.1">openssl(1)</a>,
        <a href="https://man.openbsd.org/ssh.1">ssh(1)</a> and
        <a href="https://man.openbsd.org/sshd.8">sshd(8)</a>.
    <li>Various bug fixes and improvements in
        <a href="https://man.openbsd.org/jot.1">jot(1)</a>:
        <ul>
          <li>Arbitrary length limits for the arguments for the
              <tt>-b</tt>, <tt>-s</tt>, <tt>-w</tt> options were removed.
          <li>The <tt>%F</tt> format specifier is now supported and a bug
              in the <tt>%D</tt> format was fixed.
          <li>Better code coverage in regression tests.
          <li>Several buffer overruns were fixed.
        </ul>
    <li>The <a href="https://man.openbsd.org/patch.1">patch(1)</a> utility now
        copes better with git diffs that create or delete files.
    <li>The elfrdsetroot utility used to build ramdisks is now pledged.
    <li><a href="https://man.openbsd.org/pkg_add.1">pkg_add(1)</a>
	now has improved support for HTTP(S) redirectors such as
	<i>cdn.openbsd.org</i>.
    <li><a href="https://man.openbsd.org/syslogd.8">syslogd(8)</a>
	logs if there were warnings during startup.
    <li><a href="https://man.openbsd.org/syslogd.8">syslogd(8)</a>
	stopped logging to files in a full filesystem.  Now it
	writes a warning and continues after space has been made
	available.
    <li><a href="https://man.openbsd.org/vmt.4">vmt(4)</a> now allows cloning and
      taking disk-only snapshots of running guests.
    </ul>
<p>

<li>OpenSMTPD 6.0.4
    <ul>
    <li>...
    </ul>
<p>

<li>OpenSSH 7.7
    <ul>
    <li>Security:
      <ul>
      <li>...
      </ul>
    <li>New/changed features:
      <ul>
      <li>...
      </ul>
    <li>The following significant bugs have been fixed in this release:
      <ul>
      <li>...
      </ul>
    </ul>
<p>

<li>LibreSSL 2.7.2
   <ul>
   <li> Fixed a bug in int_x509_param_set_hosts, calling strlen() if name
   length provided is 0 to match the OpenSSL behaviour. Issue noticed
   by Christian Heimes &lt;christian@python.org&gt;.
   <li> Added support for many OpenSSL 1.0.2 and 1.1 APIs, based on
   observations of real-world usage in applications. These are
   implemented in parallel with existing OpenSSL 1.0.1 APIs - visibility
   changes have not been made to existing structs, allowing code written
   for older OpenSSL APIs to continue working.
   <li> Extensive corrections, improvements, and additions to the
   API documentation, including new public APIs from OpenSSL that had
   no pre-existing documentation.
   <li> Added support for automatic library initialization in libcrypto,
   libssl, and libtls. Support for pthread_once or a compatible
   equivalent is now required of the target operating system. As a
   side-effect, minimum Windows support is Vista or higher.
   <li> Converted more packet handling methods to CBB, which improves
   resiliency when generating TLS messages.
   <li> Completed TLS extension handling rewrite, improving consistency of
   checks for malformed and duplicate extensions.
   <li>Rewrote ASN1_TYPE_{get,set}_octetstring() using templated ASN.1.
   This removes the last remaining use of the old M_ASN1_* macros
   (asn1_mac.h) from API that needs to continue to exist.
   <li> Added support for client-side session resumption in libtls.
   A libtls client can specify a session file descriptor (a regular
   file with appropriate ownership and permissions) and libtls will
   manage reading and writing of session data across TLS handshakes.
   <li> Improved support for strict alignment on ARMv7 architectures,
   conditionally enabling assembly in those cases.
   <li> Fixed a memory leak in libtls when reusing a tls_config.
   <li> Merged more DTLS support into the regular TLS code path, removing
   duplicated code.
   </ul>
<p>

<li>mandoc 1.14.3
    <ul>
    <li>...
    </ul>
<p>

<li>Ports and packages:
    <dl>
    <dt>Many pre-built packages for each architecture:
    </dl>
    <!-- number of FTP packages minus SHA256, SHA256.sig, index.txt -->
    <table border=0 cellspacing=0 cellpadding=2 width="95%">
    <tr>
    <td valign="top" width="25%">
    <ul>
      <li>aarch64:    XXXX
      <li>amd64:      XXXX
      <li>arm:        XXXX
    </ul></td><td valign=top width="25%"><ul>
      <li>hppa:       XXXX
      <li>i386:       XXXX
      <li>mips64:     XXXX
    </ul></td><td valign=top width="25%"><ul>
      <li>mips64el:   XXXX
      <li>powerpc:    XXXX
      <li>sparc64:    XXXX
    </ul></td></tr></table>
    <p>

    <dl>
    <dt>Some highlights:
    </dl>
    <table border=0 cellspacing=0 cellpadding=2 width="95%">
    <tr>
    <td valign="top" width="50%"><ul>
	<li>AFL 2.52b
	<li>CMake 3.10.2
	<li>Chromium 65.0.3325.181
	<li>Emacs 21.4 and 25.3
	<li>GCC 4.9.4
	<li>GHC 8.2.2
	<li>Gimp 2.8.22
	<li>GNOME 3.26.2
	<li>Go 1.10
	<li>Groff 1.22.3
	<li>JDK 8u144
	<li>KDE 3.5.10 and 4.14.3 (plus KDE4 core updates)
	<li>LLVM/Clang 5.0.1
	<li>LibreOffice 6.0.2.1
	<li>Lua 5.1.5, 5.2.4 and 5.3.4
	<li>MariaDB 10.0.34
	<li>Mozilla Firefox 52.7.3esr and 59.0.2
	<li>Mozilla Thunderbird 52.7.0
    </ul></td><td valign=top width="50%"><ul>
	<li>Mutt 1.9.4 and NeoMutt 20180223
	<li>Node.js 8.9.4
	<li>Ocaml 4.03.0
	<li>OpenLDAP 2.3.43 and 2.4.45
	<li>PHP 5.6.34 and 7.0.28
	<li>Postfix 3.3.0 and 3.4-20180203
	<li>PostgreSQL 10.3
	<li>Python 2.7.14 and 3.6.4
	<li>R 3.4.4
	<li>Ruby 2.3.6, 2.4.3 and 2.5.0
	<li>Rust 1.24.0
	<li>Sendmail 8.16.0.21
	<li>SQLite3 3.22.0
	<li>Sudo 1.8.22
	<li>Tcl/Tk 8.5.19 and 8.6.8
	<li>TeX Live 2017
	<li>Vim 8.0.1589
	<li>Xfce 4.12
    </ul></td></tr></table>
<p>

<li>As usual, steady improvements in manual pages and other documentation.
<p>

<li>The system includes the following major components from outside suppliers:
    <ul>
    <li>Xenocara (based on X.Org 7.7 with xserver 1.19.6 + patches,
      freetype 2.8.1, fontconfig 2.12.4, Mesa 13.0.6, xterm 330,
      xkeyboard-config 2.20 and more)
    <li>LLVM/Clang 5.0.1 (+ patches)
    <li>GCC 4.2.1 (+ patches) and 3.3.6 (+ patches)
    <li>Perl 5.24.3 (+ patches)
    <li>NSD 4.1.20
    <li>Unbound 1.6.8
    <li>Ncurses 5.7
    <li>Binutils 2.17 (+ patches)
    <li>Gdb 6.3 (+ patches)
    <li>Awk Aug 10, 2011 version
    <li>Expat 2.2.5
    </ul>
</ul>

<hr>

<h3 id="install"><font color="#0000e0">How to install</font></h3>

Please refer to the following files on the mirror site for
extensive details on how to install OpenBSD 6.3 on your machine:

<ul>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/alpha/INSTALL.alpha">
	.../OpenBSD/6.3/alpha/INSTALL.alpha</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/amd64/INSTALL.amd64">
	.../OpenBSD/6.3/amd64/INSTALL.amd64</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/arm64/INSTALL.arm64">
	.../OpenBSD/6.3/arm64/INSTALL.arm64</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/armv7/INSTALL.armv7">
	.../OpenBSD/6.3/armv7/INSTALL.armv7</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/hppa/INSTALL.hppa">
	.../OpenBSD/6.3/hppa/INSTALL.hppa</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/i386/INSTALL.i386">
	.../OpenBSD/6.3/i386/INSTALL.i386</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/landisk/INSTALL.landisk">
	.../OpenBSD/6.3/landisk/INSTALL.landisk</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/loongson/INSTALL.loongson">
	.../OpenBSD/6.3/loongson/INSTALL.loongson</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/luna88k/INSTALL.luna88k">
	.../OpenBSD/6.3/luna88k/INSTALL.luna88k</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/macppc/INSTALL.macppc">
	.../OpenBSD/6.3/macppc/INSTALL.macppc</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/octeon/INSTALL.octeon">
	.../OpenBSD/6.3/octeon/INSTALL.octeon</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/sgi/INSTALL.sgi">
	.../OpenBSD/6.3/sgi/INSTALL.sgi</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/6.3/sparc64/INSTALL.sparc64">
	.../OpenBSD/6.3/sparc64/INSTALL.sparc64</a>
</ul>

<hr>

<p>
Quick installer information for people familiar with OpenBSD, and the use of
the "<a href="https://man.openbsd.org/disklabel.8">disklabel</a> -E" command.
If you are at all confused when installing OpenBSD, read the relevant
INSTALL.* file as listed above!

<h3><font color="#e00000">OpenBSD/alpha:</font></h3>

<ul style="list-style-type: none">
<li>
Write <i>floppy63.fs</i> or <i>floppyB63.fs</i> (depending on your machine)
to a diskette and enter <i>boot dva0</i>.
Refer to INSTALL.alpha for more details.
<p>
<li>
Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install
will most likely fail.
</ul>

<h3><font color="#e00000">OpenBSD/amd64:</font></h3>

<ul style="list-style-type: none">
<li>
If your machine can boot from CD, you can write <i>install63.iso</i> or
<i>cd63.iso</i> to a CD and boot from it.
You may need to adjust your BIOS options first.
<p>
<li>
If your machine can boot from USB, you can write <i>install63.fs</i> or
<i>miniroot63.fs</i> to a USB stick and boot from it.
<p>
<li>
If you can't boot from a CD, floppy disk, or USB,
you can install across the network using PXE as described in the included
INSTALL.amd64 document.
<p>
<li>
If you are planning to dual boot OpenBSD with another OS, you will need to
read INSTALL.amd64.
</ul>

<h3><font color="#e00000">OpenBSD/arm64:</font></h3>

<ul style="list-style-type: none">
<li>
Write <i>miniroot63.fs</i> to a disk and boot from it after connecting
to the serial console.  Refer to INSTALL.arm64 for more details.
<p>
</ul>

<h3><font color="#e00000">OpenBSD/armv7:</font></h3>

<ul style="list-style-type: none">
<li>
Write a system specific miniroot to an SD card and boot from it after connecting
to the serial console.  Refer to INSTALL.armv7 for more details.
<p>
</ul>

<h3><font color="#e00000">OpenBSD/hppa:</font></h3>

<ul style="list-style-type: none">
<li>
Boot over the network by following the instructions in INSTALL.hppa or the
<a href="hppa.html#install">hppa platform page</a>.
</ul>

<h3><font color="#e00000">OpenBSD/i386:</font></h3>

<ul style="list-style-type: none">
<li>
If your machine can boot from CD, you can write <i>install63.iso</i> or
<i>cd63.iso</i> to a CD and boot from it.
You may need to adjust your BIOS options first.
<p>
<li>
If your machine can boot from USB, you can write <i>install63.fs</i> or
<i>miniroot63.fs</i> to a USB stick and boot from it.
<p>
<li>
If you can't boot from a CD, floppy disk, or USB,
you can install across the network using PXE as described in
the included INSTALL.i386 document.
<p>
<li>
If you are planning on dual booting OpenBSD with another OS, you will need to
read INSTALL.i386.
</ul>

<h3><font color="#e00000">OpenBSD/landisk:</font></h3>

<ul style="list-style-type: none">
<li>
Write <i>miniroot63.fs</i> to the start of the CF
or disk, and boot normally.
</ul>

<h3><font color="#e00000">OpenBSD/loongson:</font></h3>

<ul style="list-style-type: none">
<li>
Write <i>miniroot63.fs</i> to a USB stick and boot bsd.rd from it
or boot bsd.rd via tftp.
Refer to the instructions in INSTALL.loongson for more details.
</ul>

<h3><font color="#e00000">OpenBSD/luna88k:</font></h3>

<ul style="list-style-type: none">
<li>
Copy `boot' and `bsd.rd' to a Mach or UniOS partition, and boot the bootloader
from the PROM, and then bsd.rd from the bootloader.
Refer to the instructions in INSTALL.luna88k for more details.
</ul>

<h3><font color="#e00000">OpenBSD/macppc:</font></h3>

<ul style="list-style-type: none">
<li>
Burn the image from a mirror site to a CDROM, and power on your machine
while holding down the <i>C</i> key until the display turns on and
shows <i>OpenBSD/macppc boot</i>.
<p>
<li>
Alternatively, at the Open Firmware prompt, enter <i>boot cd:,ofwboot
/6.3/macppc/bsd.rd</i>
</ul>

<h3><font color="#e00000">OpenBSD/octeon:</font></h3>

<ul style="list-style-type: none">
<li>
After connecting a serial port, boot bsd.rd over the network via DHCP/tftp.
Refer to the instructions in INSTALL.octeon for more details.
</ul>

<h3><font color="#e00000">OpenBSD/sgi:</font></h3>

<ul style="list-style-type: none">
<li>
To install, burn cd63.iso on a CD-R, put it in the CD drive of your
machine and select <i>Install System Software</i> from the System Maintenance
menu. Indigo/Indy/Indigo2 (R4000) systems will not boot automatically from
CD-ROM, and need a proper invocation from the PROM prompt.
Refer to the instructions in INSTALL.sgi for more details.

<p>
<li>
If your machine doesn't have a CD drive, you can setup a DHCP/tftp network
server, and boot using "bootp()/bsd.rd.IP##" using the kernel matching your
system type. Refer to the instructions in INSTALL.sgi for more details.
</ul>

<h3><font color="#e00000">OpenBSD/sparc64:</font></h3>

<ul style="list-style-type: none">
<li>
Burn the image from a mirror site to a CDROM, boot from it, and type
<i>boot cdrom</i>.
<p>
<li>
If this doesn't work, or if you don't have a CDROM drive, you can write
<i>floppy63.fs</i> or <i>floppyB63.fs</i>
(depending on your machine) to a floppy and boot it with <i>boot
floppy</i>. Refer to INSTALL.sparc64 for details.
<p>
<li>
Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install
will most likely fail.
<p>
<li>
You can also write <i>miniroot63.fs</i> to the swap partition on
the disk and boot with <i>boot disk:b</i>.
<p>
<li>
If nothing works, you can boot over the network as described in INSTALL.sparc64.
</ul>

<hr>

<h3 id="upgrade"><font color="#0000e0">How to upgrade</font></h3>

If you already have an OpenBSD 6.2 system, and do not want to reinstall,
upgrade instructions and advice can be found in the
<a href="faq/upgrade63.html">Upgrade Guide</a>.
<p>

<hr>

<h3 id="sourcecode"><font color="#0000e0">Notes about the source code</font></h3>

<tt>src.tar.gz</tt> contains a source archive starting at <tt>/usr/src</tt>.
This file contains everything you need except for the kernel sources,
which are in a separate archive.
To extract:

<blockquote><pre>
# <b>mkdir -p /usr/src</b>
# <b>cd /usr/src</b>
# <b>tar xvfz /tmp/src.tar.gz</b>
</pre></blockquote>

<tt>sys.tar.gz</tt> contains a source archive starting at <tt>/usr/src/sys</tt>.
This file contains all the kernel sources you need to rebuild kernels.
To extract:

<blockquote><pre>
# <b>mkdir -p /usr/src/sys</b>
# <b>cd /usr/src</b>
# <b>tar xvfz /tmp/sys.tar.gz</b>
</pre></blockquote>

Both of these trees are a regular CVS checkout.  Using these trees it
is possible to get a head-start on using the anoncvs servers as
described <a href="anoncvs.html">here</a>.
Using these files
results in a much faster initial CVS update than you could expect from
a fresh checkout of the full OpenBSD source tree.
<p>

<hr>

<h3 id="ports"><font color="#0000e0">Ports Tree</font></h3>

A ports tree archive is also provided.  To extract:

<blockquote><pre>
# <b>cd /usr</b>
# <b>tar xvfz /tmp/ports.tar.gz</b>
</pre></blockquote>

Go read the <a href="faq/ports/index.html">ports</a> page
if you know nothing about ports
at this point.  This text is not a manual of how to use ports.
Rather, it is a set of notes meant to kickstart the user on the
OpenBSD ports system.
<p>
The <i>ports/</i> directory represents a CVS checkout of our ports.
As with our complete source tree, our ports tree is available via
<a href="anoncvs.html">AnonCVS</a>.
So, in order to keep up to date with the -stable branch, you must make
the <i>ports/</i> tree available on a read-write medium and update the tree
with a command like:

<blockquote><pre>
# <b>cd /usr/ports</b>
# <b>cvs -d anoncvs@server.openbsd.org:/cvs update -Pd -rOPENBSD_6_3</b>
</pre></blockquote>

[Of course, you must replace the server name here with a nearby anoncvs
server.]
<p>
Note that most ports are available as packages on our mirrors. Updated
ports for the 6.3 release will be made available if problems arise.
<p>
If you're interested in seeing a port added, would like to help out, or just
would like to know more, the mailing list
<a href="mail.html">ports@openbsd.org</a> is a good place to know.
<p>
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