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Revision 1.47, Fri Oct 13 14:50:39 2023 UTC (7 months, 2 weeks ago) by schwarze
Branch: MAIN
Changes since 1.46: +14 -0 lines

new entries for ktrace1(2), imsg, modf(3), oBER and pcap
after looking through /usr/src/lib/

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<title>OpenBSD 7.4</title>
<meta name="description" content="OpenBSD 7.4">
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<h2 id=OpenBSD>
<a href="index.html">
<i>Open</i><b>BSD</b></a>
7.4
</h2>

<table>
<tr>
<td>
<a href="images/XXX.png">
<img width="227" height="303" src="images/XXX-s.gif" alt="XXX"></a>
<td>
Released Oct XXX, 2023. (55th OpenBSD release)<br>
Copyright 1997-2023, Theo de Raadt.<br>
<br>
Artwork by Jessica Scott.
<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 <code class=reldir>pub/OpenBSD/7.4/</code> directory on
    one of the mirror sites.
<li>Have a look at <a href="errata74.html">the 7.4 errata page</a> for a list
    of bugs and workarounds.
<li>See a <a href="plus74.html">detailed log of changes</a> between the
    7.3 and 7.4 releases.
<p>
<li><a href="https://man.openbsd.org/signify.1">signify(1)</a>
    pubkeys for this release:<p>

<table class=signify>
<tr><td>
openbsd-74-base.pub:
<td>
<a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/openbsd-74-base.pub">
RWRoyQmAD08ajTqgzK3UcWaVlwaJMckH9/CshU8Md5pN1GoIrcBdTF+c</a>
<tr><td>
openbsd-74-fw.pub:
<td>
RWTRA9KXRuZKunpXYK0ed5OxbE0K7rYWpDnTu+M8wZdqzRroFqed0U6I
<tr><td>
openbsd-74-pkg.pub:
<td>
RWR/h7gubZ9M/O46RNy3PzLTPevOCK24LGCPca41IHMwSH4YuVA+jnWO
<tr><td>
openbsd-74-syspatch.pub:
<td>
RWQqty2voy8V8afR9/v2RzuNr7r4y9cKwljABN7Tytd7JcPdBjnXg0Ue
</table>
</ul>
<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 <code>ports.tar.gz</code>.
</table>

<hr>

<section id=new>
<h3>What's New</h3>
<p>
This is a partial list of new features and systems included in OpenBSD 7.4.
For a comprehensive list, see the <a href="plus74.html">changelog</a> leading
to 7.4.

<ul>

<li>New/extended platforms:
  <ul>
  <li>On arm64, implement branch target protection using the branch
	target identification feature introduced in Armv8.5.  This provides
	"head-CFI" to complement the "tail-CFI" provided by retguard, and is
	supported on Apple M2.
  </ul>

<li>Various kernel improvements:
  <ul>
  <li>On amd64, identify IBT capability in
      <a href="https://man.openbsd.org/amd64/cpu.4">cpu(4)</a> dmesg lines.
  <li>On arm64, show BTI and SBSS features in
      <a href="https://man.openbsd.org/dmesg.8">dmesg(8)</a>.
  <li>New <a href="https://man.openbsd.org/kqueue1">kqueue1(2)</a>
      system call supporting the <code>O_CLOEXEC</code> flag.
  <li>Map device tree read/write to unbreak root on
      <a href="https://man.openbsd.org/softraid.4">softraid(4)</a>.
  <li>Correctly recognize <a href="https://man.openbsd.org/umass.4">umass(4)</a>.
      floppy disk devices as floppy disks.
  <li>In <a href="https://man.openbsd.org/wscons.4">wscons(4)</a>,
	catch up with box drawing characters which have
	been standardized in unicode after the original wscons code was
	written and chose placeholder values.
  </ul>

<li>SMP Improvements
  <ul>
  <li>Protect struct clockintr(9)_queue with a mutex so that arbitrary CPUs
	can manipulate clock interrupts established on arbitrary CPU queues.
  <li>Pushed kernel lock into nd6_resolve().
  <li>Removed kernel locks from the ARP input path.
  <li>Pulled MP-safe arprequest() out of kernel lock.
  <li>Unlock more parts of
	<a href="https://man.openbsd.org/ioctl.2">ioctl(2)</a>
	code in the network stack.
  </ul>

<li>Direct Rendering Manager and graphics drivers
  <ul>
  <li>Updated <a href="https://man.openbsd.org/drm.4">drm(4)</a>
      to Linux 6.1.55
  <li>Don't change end marker in sg_set_page().  Caused bad memory accesses
      when using page flipping on Alder Lake and Raptor Lake.
  </ul>

<li>VMM/VMD improvements
  <ul>
  <li>Allowed <a href="https://man.openbsd.org/vmm.4">vmm(4)</a> guests to 
	enable and use supervisor IBT.
  <li>Suppressed AMD hardware p-state visibility to
	<a href="https://man.openbsd.org/vmm.4">vmm(4)</a> guests. 
  <li>Avoid use of uninitialised memory in
      <a href="https://man.openbsd.org/vmd.8">vmd(8)</a>.
  <li>Migrate vmd_vm.vm_ttyname to char array allowing a vmd_vm
        object to be transmitted over an ipc channel.
  <li>Cleaned up file descriptor closing in
	 <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> vmm process.
  <li>Fixed vm send/receive, restoring device virtqueue addresses on
	receive.
  <li>Introduced <a href="https://man.openbsd.org/execvp.3">execvp(3)</a>
	after fork for child vm processes.
  <li>No longer generate an error in
      <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> if
      <a href="https://man.openbsd.org/vm.conf.5">vm.conf(5)</a> is absent.
  <li>Split <a href="https://man.openbsd.org/vmm.4">vmm(4)</a> into MI/MD
	parts.
  <li>Introduced multi-process model for 
	<a href="https://man.openbsd.org/vmd.8">vmd(8)</a> virtio block and
	network devices.
  <li>Allowed vm owners to override boot kernel when using
	<a href="https://man.openbsd.org/vmctl.8">vmctl(8)</a> to start a
	vm.
  <li>Changed staggered start of vms to number of online CPUs.
  <li>Fixed a segfault on vm creation.
  <li>Switched to anonymous shared memory mappings for
	<a href="https://man.openbsd.org/vmd.8">vmd(8)</a> vm processes,
	introducing a new <a href="https://man.openbsd.org/vmm.4">vmm(4)</a>
	<a href="https://man.openbsd.org/ioctl.2">ioctl(2)</a>.
  <li>Relaxed absolute path requirements for 
	<a href="https://man.openbsd.org/vmd.8">vmd(8)</a> configtest mode (-n).
  <li>Adjusted shutdown logic by vm id to function similarly as by name.
  <li>Moved validation of local network prefixes for the internal
	<a href="https://man.openbsd.org/vmd.8">vmd(8)</a> DHCP service into
	the config parser.
  <li>Fixed QCOW2 base images when used with the
	<a href="https://man.openbsd.org/vmd.8">vmd(8)</a> multi-process device
	model.
  <li>Fixed setting verbose logging in child processes.
  <li>Fixed a race condition related to the emulated i8259 interrupt controller
	by ignoring interrupt masks on assert.
  <li>Inlined pending interrupts in the 
	<a href="https://man.openbsd.org/vmm.4">vmm(4)</a>
	<a href="https://man.openbsd.org/ioctl.2">ioctl(2)</a> for running the
	vcpu, reducing vm latency.
  <li>Added zero-copy, vectored io to the
	<a href="https://man.openbsd.org/vmd.8">vmd(8)</a> virtio block device.
  <li>Changed to logging <a href="https://man.openbsd.org/vmd.8">vmd(8)</a>
	vm ids in the vcpu run loop on error and not the ids used by
	<a href="https://man.openbsd.org/vmm.4">vmm(4)</a>.
  <li>Fixed a vm pause deadlock.
  <li>Changed <a href="https://man.openbsd.org/vmd.8">vmd(8)</a> logging format
	to disambiguate vm and device process by names and indices.
  <li>Fixed dynamically toggling verbose logging mode with
	<a href="https://man.openbsd.org/vmctl.8">vmctl(8)</a>.
  </ul>

<li>Various new userland features:
  <ul>
  <li>New ISO C11 header <code>&lt;uchar.h&gt;</code> declaring the
      types <code>char32_t</code> and <code>char16_t</code> and the
      functions <a href="https://man.openbsd.org/c32rtomb.3">c32rtomb(3)</a>,
      <a href="https://man.openbsd.org/mbrtoc32.3">mbrtoc32(3)</a>,
      <a href="https://man.openbsd.org/c16rtomb.3">c16rtomb(3)</a>, and
      <a href="https://man.openbsd.org/mbrtoc16.3">mbrtoc16(3)</a>.
  <li><a href="https://man.openbsd.org/malloc.3">malloc(3)</a> gains built-in leak detection.
  <li>Add many new functions to the
      <a href="https://man.openbsd.org/imsg_init.3">imsg_init(3)</a> API.
  <li>Support <code>${.VARIABLES}</code> in
      <a href="https://man.openbsd.org/make.1">make(1)</a>,
      listing the names of all global variables that have been set.
  <li>New <a href="https://man.openbsd.org/kdump.1">kdump(1)</a>
      <code>-u</code> option to select
      <a href="https://man.openbsd.org/utrace.2">utrace(2)</a>
      tracepoints by label.
  <li>In <a href="https://man.openbsd.org/openrsync.1">openrsync(1)</a>,
      support the options <code>--size-only</code> and
      <code>--ignore-times</code>
  <li>Update zoneinfo to tzdata2023c.
  <li>Accept the <a href="https://man.openbsd.org/ucom.4">ucom(4)</a> fixed
      name format as a valid format for the
      <a href="https://man.openbsd.org/cu.1">cu(1)</a> -l option.
  </ul>

<li>Various bugfixes and tweaks in userland:
  <ul>
  <li>In <a href="https://man.openbsd.org/pax.1">pax(1)</a> and
      <a href="https://man.openbsd.org/tar.1">tar(1)</a>,
      speed up archive creation when many files are skipped.
  <li>Better diagnostics from
      <a href="https://man.openbsd.org/make.1">make(1)</a>
      when a makefile exists but cannot be opened.
  <li>Prevent a buffer underflow in
      <a href="https://man.openbsd.org/patch.1">patch(1)</a>
      that could occur with lines longer than 32kB.
  <li>Prevent a segmentation fault in
      <a href="https://man.openbsd.org/patch.1">patch(1)</a>
      that occurred when a patch specified a file name so long that
      <a href="https://man.openbsd.org/basename.3">basename(3)</a> failed.
  <li>Prevent a read buffer overrun in
      <a href="https://man.openbsd.org/patch.1">patch(1)</a>
      that could occur when a patch specified a file name ending in a slash.
  <li>Let <a href="https://man.openbsd.org/stat.1">stat(1)</a>
      correctly print mtimes after 2038.
  <li>Refactoring and documenting of
      <a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a> code,
      to make it easier to maintain.
  <li><a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a>
       no longer adds extra blanks at the end of lines, eliminating
       spurious line wrapping.
  <li>In <a href="https://man.openbsd.org/clang.1">clang(1)</a>,
      allow out-of-class defaulting of comparison operators,
	by ways of backporting an upstream commit.
  <li>Improve the code of
      <a href="https://man.openbsd.org/aucat.1">aucat(1)</a>
      and fix spelling mistakes.
  <li>Improve the code quality of find(1).
  <li>Many changes in <a href="https://man.openbsd.org/mg.1">mg(1)</a>:
    <ul>
    <li>New command
        <a href="https://man.openbsd.org/mg.1#set-tab-width">set-tab-width</a>
        to change the tabulator width on a per-buffer basis.
    <li>Let the <code>space-to-tabstop</code> command move to the right
        position even if the line contains tabs, control characters,
        or non-ASCII bytes.
    <li>Improve the readability of the code.
    <li>Fall back to <code>/bin/sh</code> if <code>$SHELL</code> is undefined.
    <li>Fix parsing of tag files with duplicate entries.
	Instead of erroring out ignore duplicates. Fixes using
	<code>/var/db/libc.tags</code> again.
    <li>Change the <a href="https://man.openbsd.org/mg.1#visit-tags-table"
        >visit-tags-table</a> command to immediately
	load the tag file, and drop the lazy mechanics.
    <li>Do not leak memory in
        <a href="https://man.openbsd.org/mg.1#pop-tag-mark">pop-tag-mark</a>
        if it fails to switch buffers.
    <li>Fix a read buffer overrun caused by <code>-u</code> arguments
        longer than 1023 bytes.
    <li>Fix a write buffer overrun on the stack caused by
        <a href="https://man.openbsd.org/mg.1#blink-and-insert"
        >blink-and-insert</a> matching a very long line
        that is not currently visible in the window.
    <li>Skip checking permissions of conffile with access(2).
    <li>Added a missing void.
    </ul>
  <li>On aarch64 architectures improve how BTI control flow integrity
	enforcement is implemented in the executable entry point and enable
	support for BTI control flow integrity checks in libc assembly
	functions.
  <li>In <a href="https://man.openbsd.org/ld.so.1">ld.so(1)</a> treat
	symlinks in $ORIGIN determination the same way as other OS linkers do.
  <li>Fix a segfault when the
      <a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a>
	    simple editor encounters an incomplete partition line.
  <li>Fix <a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a>
      handling of templates with partitions after a "N-* 100" entry.
  <li>Enable <a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a>
      regress tests to work on sparc64.
  <li>Fix <a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a>
      initialization of CHS/LBA fields in an MBR, allowing machines with
      a BIOS that uses CHS to boot from disks >8G.
  <li>Retire <a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a>
      -E expert mode.
  <li>When displaying GPT partition attributes
      <a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a> prefixes
      Microsoft partition attribute names with 'MS'.
  <li>In the absence of the 'disktype' command line parameter
      <a href="https://man.openbsd.org/disklabel.8">disklabel(8)</a>
      always uses the current media type provided by the kernel.
  <li>Ensure <a href="https://man.openbsd.org/fdisk.8">fdisk(8)</a> handles
      the case where a GPT partition name is not a valid C string.
  <li>In <a href="https://man.openbsd.org/ld.so.1">ld.so(1)</a>,
	avoid an overflow in the ELF SYSV ABI hash function.
  <li>Make sure <a href="https://man.openbsd.org/modf.3">modf(3)</a> and
	<a href="https://man.openbsd.org/modff.3">modff(3)</a>
	return correct values for infinities.
  <li>Do not fail in
	<a href="https://man.openbsd.org/ober_scanf_elements.3"
	>ober_scanf_elements(3)</a> when encountering empty sequences.
  </ul>

<li>Improved hardware support and driver bugfixes, including:
  <ul>
  <li>New <a href="https://man.openbsd.org/sysctl.2">sysctl(2)</a>
      nodes for battery management, <code>hw.battery.charge*</code>.
  <li>Define fixed names for
      <a href="https://man.openbsd.org/ucom.4">ucom(4)</a> USB serial
      ports, display them in attach messages and via the new
      <code>hw.ucomnames</code>
      <a href="https://man.openbsd.org/sysctl.2#HW_UCOMNAMES~2">sysctl(2)</a>.
  <li>Add support for the RK3568 32k RTC and other clocks in
      <a href="https://man.openbsd.org/rkclock.4">rkclock(4)</a>.
  <li>In <a href="https://man.openbsd.org/dwpcie.4">dwpcie(4)</a>,
      attach Baikal-M PCIe.
  <li>In openfirmware, implement regulator notifiers which get called
	when the voltage/current for a regulator is changed or when the
	regulator gets initialized when it attaches for the first time. The
	latter makes it possible to register a notifier for a regulator that
	hasn't attached yet.
  <li>Add <a href="https://man.openbsd.org/rkiovd.4">rkiovd(4)</a>,
      a driver for the I/O voltage domains on Rockchip SoCs.
  <li>Add support for TEMPerGold 3.4 temperature sensor to
      <a href="https://man.openbsd.org/ugold.4">ugold(4)</a>.
  <li>Ignore duplicate ACPI lid transitions as they can happen on Dell
	Precision 5510 systems.
  <li>Make RK3568 PCIe controllers run at the maximum possible speed
	by using dwpcie_link_config() when initializing.
  <li>In the Universal Flash Storage Host Controller Interface
      (<a href="https://man.openbsd.org/ufshci.4">ufshci(4)</a>),
      enable Force Unit Access (FUA) for write commands.
  <li>Make SATA (<a href="https://man.openbsd.org/ahci.4">ahci(4)</a>)
	work on a Banana Pi BPI-R2 Pro.
  <li>In <a href="https://man.openbsd.org/umcs.4">umcs(4)</a>, set
	parity bits correctly.
  <li>Enabled the caps lock LED on modern Apple laptop keyboards.
  <li>Add support for Rockchip "cryptov2-rng" random number generator in
	<a href="https://man.openbsd.org/rkrng.4">rkrng(4)</a>.
  <li>Fixed cpuperf on the Apple M2 Pro/Max.
  <li>Add support for the PCIe controller found on Apple M2 Pro/Max SoCs.
  <li>Add support for enabling both the USB2 and USB3 PHYs in
      <a href="https://man.openbsd.org/xhci.4">xhci(4)</a> with device tree.
  <li>Add <a href="https://man.openbsd.org/rkusbphy.4">rkusbphy(4)</a>,
      a driver for the usb2phy on Rockchip SoCs.
  </ul>

<li>New or improved network hardware support:
  <ul>
  <li>Fix <a href="https://man.openbsd.org/dwqe.4">dwqe(4)</a>
      on several boards that use
      <a href="https://man.openbsd.org/rgephy.4">rgephy(4)</a> by configuring
	the RGMII interface before taking the PHY out of reset.
  <li>Improve <a href="https://man.openbsd.org/dwqe.4">dwqe(4)</a> and
	determine PHY mode and pass the appropriate flags down to the PHY when
	we attach it.
  <li>Report in <a href="https://man.openbsd.org/dmesg.8">dmesg(8)</a> on
      which gmac the <a href="https://man.openbsd.org/dwqe.4">dwqe(4)</a>
      driver is attaching to.
  <li>Document that Intel i226 adapters are supported by
      <a href="https://man.openbsd.org/igc.4">igc(4)</a>.
  <li>Add <a href="https://man.openbsd.org/ngbe.4">ngbe(4)</a>,
      a driver for WangXun WX1860 PCI Express 10/100/1Gb Ethernet devices.
      Also support it on amd64 install media.
  <li>Add support for the RTL8211F-VD PHY in
      <a href="https://man.openbsd.org/rgephy.4">rgephy(4)</a>.
  <li>In openfirmware, add glue for network interfaces to be found by
	fdt/ofw node or phandle in order to support "switch chips" like the
	marvell link street.
  <li>Add support for RTL8153D devices to
      <a href="https://man.openbsd.org/ure.4">ure(4)</a>.
  </ul>

<li>Added or improved wireless network drivers:
  <ul>
  <li>Improve how Quectel LTE&5G devices attach to
      <a href="https://man.openbsd.org/umb.4">umb(4)</a>.
  </ul>

<li>IEEE 802.11 wireless stack improvements and bugfixes:
  <ul>
  <li> Add support for RTL8188FTV devices to the
      <a href="https://man.openbsd.org/urtwn.4">urtwn(4)</a> driver.
  <li>Attach Intel wireless devices with PCI product ID 0x51f1 to
      <a href="https://man.openbsd.org/iwx.4">iwx(4)</a>.
  <li>Fix a bug where <a href="https://man.openbsd.org/iwm.4">iwm(4)</a> and
      <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> background
      scan tasks were added to the wrong task queue.
  <li>Fix a firmware error that occurred when an
      <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> interface
      was brought down.
  <li>Fix <a href="https://man.openbsd.org/iwx.4">iwx(4)</a> firmware errors
      triggered during background scans.
  <li>Fix a crash in the <a href="https://man.openbsd.org/iwm.4">iwm(4)</a>
      driver when userland attempts to inject frames via bpf in monitor mode.
  </ul>

<li>Installer, upgrade and bootloader improvements:
  <ul>
  <li>In the arm64 ramdisk, simplify apple firmware copying to make it
	easier to add new firmware.
  <li>On armv7 and arm64, silence informational messages from
      <a href="https://man.openbsd.org/dd.1">dd(1)</a>
	when zeroing a disk's first 1MB. Use character not block devices with
	dd(1) like on other architectures.
  <li>Refactor the code of md_installboot() on armv7 and arm64 to be
	more in line with other architectures.
  <li>Improve the dialogue of the installer without affecting
      <a href="https://man.openbsd.org/autoinstall.8">autoinstall(8)</a>
       files.
  <li>Enable <a href="https://man.openbsd.org/ufshci.4">ufshci(4)</a>
      on arm64 install media.
  <li>On arm64 pine64 boards, stop writing pine64 firmware to disk.
  <li>Make root on
      <a href="https://man.openbsd.org/softraid.4">softraid(4)</a>
      installations boot out of the box on Raspberry Pis (arm64).
  <li>Support installations with root on
      <a href="https://man.openbsd.org/softraid.4">softraid(4)</a>
      on arm64, tested on Pinebook Pro, Raspberry Pi 4b, and SolidRun CEX7.
  <li>When installing on encrypted
	<a href="https://man.openbsd.org/softraid.4">softraid(4)</a>, determine
	the disk for placing the root device automatically and make it default
	as it is the only legit choice.
  <li>Add arm64 to the list of architectures with support for guided disk
      encryption.
  <li>Retain existing EFI System partitions on systems with APFSISC
      partitions (arm64 Apple M1/M2) during installation with root on
      <a href="https://man.openbsd.org/softraid.4">softraid(4)</a>.
  <li>When media has neither a GPT nor an MBR
      <a href="https://man.openbsd.org/installboot.8">installboot(8)</a>,
      assume OpenBSD occupies the entire disk starting at sector 0.
  <li>Attempt to not overflow the ramdisk when extracting firmware on
	Apple arm64 systems.
  </ul>

<li>Security improvements:
  <ul>
  <li>Change <a href="https://man.openbsd.org/malloc.3">malloc(3)</a>
      chunk sizes to be fine grained: chunk sizes are closer to the
      requested allocation size.
  <li>In <a href="https://man.openbsd.org/malloc.3">malloc(3)</a>,
      check all chunks in the delayed free list for write-after-free.
  <li>Restrict <a href="https://man.openbsd.org/patch.1">patch(1)</a>
      to the current directory including subdirectories, TMPDIR,
      and file names given on the command line using
      <a href="https://man.openbsd.org/unveil.2">unveil(2)</a>.
  <li>In <a href="https://man.openbsd.org/ksh.1">ksh(1)</a>, escape
      control characters when displaying file name completions,
      even when there are multiple matches.
  <li>In <a href="https://man.openbsd.org/pax.1">pax(1)</a>,
      <a href="https://man.openbsd.org/tar.1">tar(1)</a>, and
      <a href="https://man.openbsd.org/cpio.1">cpio(1)</a> terminal
      output, escape non-printable characters in messages that may
      include file names.
  </ul>

<li>Changes in the network stack:
  <ul>
  <li>In <a href="https://man.openbsd.org/pf.4">pf(4)</a>,
      when redirecting locally generated IP packets to
	userland with divert-packet rules, the packets may have no checksum
	due to hardware offloading.  Calculate the checksum in that case.
 <li>Sync the use of
     <a href="https://man.openbsd.org/getuptime.9">getuptime(9)</a>
     in the Neighbour Discovery (ND) code with ARP.
 <li>In the IPv6 forwarding code, call
     <a href="https://man.openbsd.org/getuptime.9">getuptime(9)</a>
     once for consistency with IPv4.
 <li>ARP has a queue of packets that should be sent after name
	resolution. Neighbor discovery (ND6) did only hold a single packet.
	Unified the code, added a queue to ND6 and made the code MP safe.
 <li>Implement a new <a href="https://man.openbsd.org/sysctl.2">sysctl(2)</a>
     <code>net.inet6.icmp6.nd6_queued</code> to show the number of packets
     waiting for an ND6 response, analogous to ARP.

 </ul>

<li>Routing daemons and other userland network improvements:
  <ul>
  <li>IPsec support was improved:
  <ul>
	<li>In <a href="https://man.openbsd.org/isakmpd.8">isakmpd(8)</a>,
	    avoid a double free in ec_init() when using the OpenSSL API.
	<li>In <a href="https://man.openbsd.org/iked.8">iked(8)</a>,
	    do not treat the return value of
	    <a href="https://man.openbsd.org/i2d_ECDSA_SIG.3"
	    >i2d_ECDSA_SIG(3)</a> as a length as it can be negative.
	<li>Prepare <a href="https://man.openbsd.org/isakmpd.8">isakmpd(8)</a>
	    for a libcrypto library that is lacking binary field support.
	<li>In <a href="https://man.openbsd.org/isakmpd.8">isakmpd(8)</a>,
	    avoid a potential crash by adding a missing NULL check.

  </ul>
  <li>In <a href="https://man.openbsd.org/bgpd.8">bgpd(8)</a>,
  <ul>
	<li>Add first version of flowspec support. Right now only announcement
	    of flowspec rules is possible.
	<li>Update ASPA support to follow draft-ietf-sidrops-aspa-verification-16
	    and draft-ietf-sidrops-aspa-profile-16 by making the ASPA lookup
	    tables AFI-agnostic.
	<li>Rework UPDATE message generation to use the new ibuf API instead
	    of the hand-rolled solution before.
	<li>Fix <code>ext-community * *</code> matching which also affects
	    filters removing all ext-communities.
	<li>Improve and extend the bgpctl parser to handle commands like
	    <code>bgpctl show rib 192.0.2.0/24 detail</code>.
	    Also add various flowspec specific commands.
	<li>Introduce a semaphore to protect intermittent RTR session data
	    from being published to the RDE.
	<li>Limit the socket buffer size to 64k for all sessions.
	    Limiting the buffer size to a reasonable size ensures that not
	    too many updates end up queued in the TCP stack.
	<li>Adjusted example <code>GRACEFUL_SHUTDOWN</code> filter rule in
	    the example config to only match on ebgp sessions.
  </ul>
  <li><a href="https://man.openbsd.org/rpki-client.8">rpki-client(8)</a> saw some changes:
  <ul>
	<li>A 30%-50% performance improvement was achieved through libcrypto's
	    partial chains certificate validation feature. Already validated
	    non-inheriting CA certificates are now marked as trusted roots. This
	    way it can be ensured that a leaf's delegated resources are properly
	    covered, and at the same time most validation paths are
	    significantly shortened.
	<li>Support for gzip and deflate HTTP Content-Encoding compression was
	    added. This allows web servers to send RRDP XML in compressed form,
	    saving around 50% of bandwidth.
	<li>ASPA support was updated to draft-ietf-sidrops-aspa-profile-16.
	    As part of supporting AFI-agnostic ASPAs, the JSON syntax for
	    Validated ASPA Payloads changed in both filemode and normal output.
	<li>In filemode (-f option) the applicable manifests are now shown as
	    part of the signature path.
	<li>A new -P option was added to manually specify a moment in time
	    to use when parsing the validity window of certificates. Useful
	    for regression testing. Default is invocation time of rpki-client.
	<li>The -A option will now also exclude ASPA data from the JSON output.
	<li>The synchronisation protocol used to sync the repository is now
	    included in the OpenMetrics output.
	<li>Improved accounting by tracking objects both by repo and tal.
	<li>Check whether products listed on a manifest were issued by the same
	    authority as the manifest itself.
	<li>File modification timestamps of objects retrieved via RRDP are now
	    deterministically set to prepare the on-disk cache for seamless
	    failovers from RRDP to RSYNC.
	<li>Improved detection of RRDP session desynchronization: a check was
	    added to compare whether the delta hashes associated to previously
	    seen serials are different in newly fetched notification files.
	<li>Improved handling of RRDP deltas in which objects are published,
	    withdrawn, and published again.
	<li>Disallow X.509 v2 issuer and subject unique identifiers in certs.
	    RPKI CAs will never issue certificates with V2 unique identifiers.
	<li>A check to disallow duplicate X.509 certificate extensions was
	    added.
	<li>A check to disallow empty sets of IP Addresses or AS numbers in RFC
	    3779 extensions was added.
	<li>A warning is printed when the CMS signing-time attribute in a Signed
	    Object is missing.
	<li>Warnings about unrecoverable message digest mismatches now include
	    the manifestNumber to aid debugging the cause.
	<li>A check was added to disallow multiple RRDP publish elements for the
	    same file in RRDP snapshots. If this error condition is encountered,
	    the RRDP transfer is failed and the RP falls back to rsync.
	<li>A compliance check for the proper X.509 Certificate version and CRL
	    version was added.
	<li>A compliance check was added to ensure CMS Signed Objects contain
	    SignedData, in accordance to RFC 6488 section 3 checklist item 1a.
	<li>Compliance checks were added for the version, KeyUsage, and
	    ExtendedKeyUsage of EE certificates in Manifest, TAK, and GBR Signed
	    Objects.
	<li>A CMS signing-time value being after the X.509 notAfter timestamp
	    was downgraded from an error to a warning.
	<li>A bug was fixed in the handling of CA certificates which inherit IP
	    resources.
	<li>A compliance check was added to ensure the X.509 Subject only
	    contains commonName and optionally serialNumber.
	<li>A compliance check was added to ensure the CMS SignedData and
	    SignerInfo versions to be 3.
	<li>Fisher-Yates shuffle the order in which Manifest entries are
	    processed. Previously, work items were enqueued in the order the CA
	    intended them to appear on a Manifest. However, there is no obvious
	    benefit to third parties deciding the order in which things are
	    processed.
  </ul>

  <li>In <a href="https://man.openbsd.org/smtpd.8">smtpd(8)</a>,
  <ul>
	<li>Swapped link-auth filter arguments to avoid ambiguities with user
	    names containing a "|" character.
	<li>Bumped <a href="https://man.openbsd.org/smtpd-filters.7">smtpd-filters(7)</a>
	    protocol version.
	<li>Fixed potential truncation of filtered data lines.
	<li>Allowed arguments on NOOP.
  </ul>

  <li>In <a href="https://man.openbsd.org/snmpd.8">snmpd(8)</a>,
  <ul>
	<li>...
  </ul>

  <li>Let <a href="https://man.openbsd.org/pcap_fopen_offline.3"
      >pcap_fopen_offline(3)</a> correctly interpret some
      <code>LINKTYPE_*</code> values in pcap headers written
      on foreign operating systems.
  <li>Make <a href="https://man.openbsd.org/dig.1">dig(1)</a>
      use less deprecated LibreSSL API.
  <li>In <a href="https://man.openbsd.org/ypldap.8">ypldap(8)</a>,
      reduce memory usage when updating larger directories.
  <li>Remove stylistic differences between
      <a href="https://man.openbsd.org/arp.8">arp(8)</a> and
      <a href="https://man.openbsd.org/ndp.8">ndp(8)</a> delete()
	function.  This makes it easier to spot real changes in behavior.
  <li>Make <a href="https://man.openbsd.org/ndp.8">ndp(8)</a>
      not remove cloning routes when no neighbor entry is
	found with <code>ndp -d</code>.
  </ul>

<li><a href="https://man.openbsd.org/tmux.1">tmux(1)</a> improvements and bug fixes:
  <ul>
  <li>For passthrough, don't write to clients attached to different sessions.
  <li>Add a format to show if there are unseen changes while in a mode.
  </ul>

<li>LibreSSL version 3.8.2
  <ul>
  <li>Security fixes
    <ul>
    <li>Disabled TLSv1.0 and TLSv1.1 in libssl so that they may no longer
      be selected for use.
    <li>BN_is_prime{,_fasttest}_ex() refuse to check numbers larger than
      32 kbits for primality. This mitigates various DoS vectors.
    <li>Restricted the RFC 3779 code to IPv4 and IPv6. It was not written
      to be able to deal with anything else.
    </ul>
  <li>Portable changes
    <ul>
    <li>Extended the endian.h compat header with hto* and *toh macros.
    <li>Adapted more tests to the portable framework.
    <li>Internal tools are now statically linked.
    <li>Applications bundled as part of the LibreSSL package internally,
      nc(1) and openssl(1), now are linked statically if static libraries
      are built.
    <li>Internal compatibility function symbols are no longer exported from
      libcrypto. Instead, the libcompat library is linked to libcrypto,
      libssl, and libtls separately. This increases size a little, but
      ensures that the libraries are not exporting symbols to programs
      unintentionally.
    <li>Selective removal of CET implementation on platforms where it is
      not supported (macOS).
    <li>Integrated four more tests.
    <li>Added Windows ARM64 architecture to tested platforms.
    <li>Removed Solaris 10 support, fixed Solaris 11.
    <li>libtls no longer links statically to libcrypto / libssl unless
	    <code>--enable-libtls-only</code> is specified at configure time.
    <li>Improved Windows compatibility library, namely handling of files vs
      sockets, correcting an exception when operating on a closed socket.
    <li>CMake builds no longer hardcode <code>-O2</code> into the compiler flags,
      instead using flags from the CMake build type instead.
    <li>Set the CMake default build type to <code>Release</code>. This can be overridden
      during configuration.
    <li>Fixed broken ASM support with MinGW builds.
    </ul>
  <li>New features
    <ul>
    <li>Added support for truncated SHA-2 and for SHA-3.
    <li>The BPSW primality test performs additional Miller-Rabin rounds
      with random bases to reduce the likelihood of composites passing.
    <li>Allow testing of ciphers and digests using badly aligned buffers
      in openssl speed using -unalign.
    <li>Ed25519 certificates are now supported in openssl(1) ca and req.
      Prepared Ed25519 support in libssl.
    <li>Add branch target information (BTI) support to amd64 and arm64
      assembly.
    </ul>
  <li>Compatibility changes
    <ul>
    <li>Added a workaround for a poorly thought-out change in OpenSSL 3 that
      broke privilege separation support in libtls.
    <li>Moved libtls from ECDSA_METHOD to EC_KEY_METHOD.
    <li>Removed GF2m support: BIGNUM no longer supports binary extension
      field arithmetic and all binary elliptic builtin curves were removed.
    <li>Removed dangerous, "fast" NIST prime and elliptic curve implementations.
      In particular, EC_GFp_nist_method() is no longer available.
    <li>Removed most public symbols that were deprecated in OpenSSL 0.9.8.
    <li>Removed the public X9.31 API (RSA_X931_PADDING is still available).
    <li>Removed Cipher Text Stealing mode.
    <li>Removed ENGINE support, including ECDH_METHOD and ECDSA_METHOD.
    <li>Removed COMP, DSO, dynamic loading of conf modules and support for
      custom ex_data and error stacks.
    <li>Removed proxy certificate (RFC 3820) support.
    <li>Removed SXNET and NETSCAPE_CERT_SEQUENCE support including the
      openssl(1) nseq command.
    <li>ENGINE support was removed and OPENSSL_NO_ENGINE is set. In spite
      of this, some stub functions are provided to avoid patching some
      applications that do not honor OPENSSL_NO_ENGINE.
    <li>The POLICY_TREE and its related structures and API were removed.
    <li>In X509_VERIFY_PARAM_inherit() copy hostflags independently of the
      host list.
    <li>Made CRYPTO_get_ex_new_index() not return 0 to allow applications
      to use *_{get,set}_app_data() and *_{get,set}_ex_data() alongside
      each other.
    <li>X509_NAME_get_text_by_{NID,OBJ}() now only succeed if they contain
      valid UTF-8 without embedded NUL.
    <li>The explicitText user notice uses UTF8String instead of VisibleString
      to reduce the risk of emitting certificates with invalid DER-encoding.
    <li>Initial fixes for RSA-PSS support to make the TLSv1.3 stack more
      compliant with RFC 8446.
    <li>Fixed EVP_CIPHER_CTX_iv_length() to return what was set with
      EVP_CTRL_AEAD_SET_IVLEN or one of its aliases.
    </ul>
  <li>Internal improvements
    <ul>
    <li>Improved sieve of Eratosthenes script used for generating a table
      of small primes.
    <li>Removed incomplete and dangerous BN_RECURSION code.
    <li>Imported RFC 5280 policy checking code from BoringSSL and used it
      to replace the old exponential time code.
    <li>Converted more of libcrypto to use CBB/CBS.
    <li>Started cleaning up and rewriting SHA internals.
    <li>Reduced the dependency of hash implementations on many layers of
      macros. This results in significant speedups since modern compilers
      are now less confused.
    <li>Improved BIGNUM internals and performance.
    <li>Significantly simplified the BN_BLINDING internals used in RSA.
    <li>Made BN_num_bits() independent of bn->top.
    <li>Rewrote and simplified bn_sqr().
    <li>Significantly improved Montgomery multiplication performance.
    <li>Rewrote and improved BN_exp() and BN_copy().
    <li>Changed ASN1_item_sign_ctx() and ASN1_item_verify() to work with
      Ed25519 and fixed a few bugs in there.
    <li>Lots of cleanup for DH, DSA, EC, RSA internals.  Plugged numerous
      memory leaks, fixed logic errors and inconsistencies.
    <li>Cleaned up and simplified various ECDH and ECDSA internals.
    <li>Removed EC_GROUP precomp machinery.
    <li>Fixed various issues with EVP_PKEY_CTX_{new,dup}().
    <li>Rewrote OBJ_find_sigid_algs() and OBJ_find_sigid_by_algs().
    <li>Improved X.509 certificate version checks.
    <li>Ensure no X.509v3 extensions appear more than once in certificates.
    <li>Replaced ASN1_bn_print with a cleaner internal implementation.
    <li>Fix OPENSSL_cpuid_setup() invocations on arm/aarch64.
    <li>Improved checks for commonName in libtls.
    <li>Fixed error check for X509_get_ext_d2i() failure in libtls.
    <li>Removed code guarded by #ifdef ZLIB.
    <li>Plug a potential memory leak in ASN1_TIME_normalize().
    <li>Fixed a use of uninitialized in i2r_IPAddrBlocks().
    <li>Rewrote CMS_SignerInfo_{sign,verify}().
    </ul>
  <li>Bug fixes
    <ul>
    <li>Correctly handle negative input to various BIGNUM functions.
    <li>Ensure ERR_load_ERR_strings() does not set errno unexpectedly.
    <li>Fix error checking of i2d_ECDSA_SIG() in ossl_ecdsa_sign().
    <li>Fixed aliasing issue in BN_mod_inverse(). Disallowed aliasing of result
      and modulus in various BN_mod_* functions.
    <li>Fixed detection of extended operations (XOP) on AMD hardware.
    <li>Ensure Montgomery exponentiation is used for the initial RSA blinding.
    <li>Policy is always checked in X509 validation. Critical policy extensions
      are no longer silently ignored.
    <li>Fixed error handling in tls_check_common_name().
    <li>Add missing pointer invalidation in SSL_free().
    <li>Fixed X509err() and X509V3err() and their internal versions.
    <li>Ensure that OBJ_obj2txt() always returns a C string again.
    <li>Made EVP_PKEY_set1_hkdf_key() fail on a NULL key.
    <li>On socket errors in the poll loop, netcat could issue system calls
      on invalidated file descriptors.
    <li>Allow IP addresses to be specified in a URI.
    <li>Fixed a copy-paste error in ASN1_TIME_compare() that could lead
      to two UTCTimes or two GeneralizedTimes incorrectly being compared
      as equal.
    </ul>
  <li>Documentation improvements
    <ul>
    <li>Improved documentation of BIO_ctrl(3), BIO_set_info_callback(3),
      BIO_get_info_callback(3), BIO_method_type(3), and BIO_method_name(3).
    <li>Marked BIO_CB_return(), BIO_cb_pre(), and BIO_cb_post() as intentionally
      undocumented.
    <li>Made it very explicit that the verify callback should not be used.
    <li>Called out that the CRL lastUpdate is standardized as thisUpdate.
    <li>Documented the RFC 3779 API and its shortcomings.
    </ul>
  <li>Testing and Proactive Security
    <ul>
    <li>Significantly improved test coverage of BN_mod_sqrt() and GCD.
    <li>As always, new test coverage is added as bugs are fixed and subsystems
      are cleaned up.
    </ul>
  </ul>

<li>OpenSSH 9.5 and OpenSSH 9.4
  <ul>
  <li>Potentially incompatible changes
    <ul>
    <li><a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>:
        generate Ed25519 keys by default. Ed25519 public keys
        are very convenient due to their small size. Ed25519 keys are
        specified in RFC 8709 and OpenSSH has supported them since version 6.5
        (January 2014).
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        the Subsystem directive now accurately preserves quoting of
        subsystem commands and arguments. This may change behaviour for exotic
        configurations, but the most common subsystem configuration
        (sftp-server) is unlikely to be affected.
    <li><a href="https://man.openbsd.org/ssh-agent.1">ssh-agent(1)</a>:
        PKCS#11 modules must now be specified by their full
        paths. Previously dlopen(3) could search for them in system
        library directories.
    </ul>
  <li>New features
    <ul>
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        add keystroke timing obfuscation to the client. This attempts
        to hide inter-keystroke timings by sending interactive traffic at
        fixed intervals (default: every 20ms) when there is only a small
        amount of data being sent. It also sends fake "chaff" keystrokes for
        a random interval after the last real keystroke. These are
        controlled by a new ssh_config ObscureKeystrokeTiming keyword.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,
        <a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        Introduce a transport-level ping facility. This adds
        a pair of SSH transport protocol messages SSH2_MSG_PING/PONG to
        implement a ping capability. These messages use numbers in the "local
        extensions" number space and are advertised using a "ping@openssh.com"
        ext-info message with a string version number of "0".
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        allow override of Subsystem directives in sshd Match blocks.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        allow forwarding Unix Domain sockets via ssh -W.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        add support for configuration tags to ssh(1).
        This adds a ssh_config(5) "Tag" directive and corresponding
        "Match tag" predicate that may be used to select blocks of
        configuration similar to the pf.conf(5) keywords of the same
        name.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
         add a "match localnetwork" predicate. This allows matching
         on the addresses of available network interfaces and may be used to
         vary the effective client configuration based on network location.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,
        <a href="https://man.openbsd.org/sshd.8">sshd(8)</a>,
        <a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>:
        infrastructure support for KRL
        extensions.  This defines wire formats for optional KRL extensions
        and implements parsing of the new submessages. No actual extensions
        are supported at this point.
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        AuthorizedPrincipalsCommand and AuthorizedKeysCommand now
        accept two additional %-expansion sequences: %D which expands to
        the routing domain of the connected session and %C which expands
        to the addresses and port numbers for the source and destination
        of the connection.
    <li><a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>:
        increase the default work factor (rounds) for the
        bcrypt KDF used to derive symmetric encryption keys for passphrase
        protected key files by 50%.
    </ul>
  <li>Bugfixes
    <ul>
    <li><a href="https://man.openbsd.org/scp.1">scp(1)</a>:
        fix scp in SFTP mode recursive upload and download of
        directories that contain symlinks to other directories. In scp mode,
        the links would be followed, but in SFTP mode they were not.
    <li><a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>:
        handle cr+lf (instead of just cr) line endings in
        sshsig signature files.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        interactive mode for ControlPersist sessions if they
        originally requested a tty.
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        make PerSourceMaxStartups first-match-wins
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        limit artificial login delay to a reasonable maximum (5s)
        and don't delay at all for the "none" authentication mechanism.
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        Log errors in kex_exchange_identification() with level
        verbose instead of error to reduce preauth log spam. All of those
        get logged with a more generic error message by sshpkt_fatal().
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        correct math for ClientAliveInterval that caused the probes
        to be sent less frequently than configured.
    <li><a href="https://man.openbsd.org/ssh-agent.1">ssh-agent(1)</a>:
        improve isolation between loaded PKCS#11 modules
        by running separate ssh-pkcs11-helpers for each loaded provider.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        make -f (fork after authentication) work correctly with
        multiplexed connections, including ControlPersist.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        make ConnectTimeout apply to multiplexing sockets and not
        just to network connections.
    <li><a href="https://man.openbsd.org/ssh-agent.1">ssh-agent(1)</a>,
        <a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        improve defences against invalid PKCS#11
        modules being loaded by checking that the requested module
        contains the required symbol before loading it.
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>:
        fix AuthorizedPrincipalsCommand when AuthorizedKeysCommand
        appears before it in sshd_config. Since OpenSSH 8.7 the
        AuthorizedPrincipalsCommand directive was incorrectly ignored in
        this situation.
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>,
        <a href="https://man.openbsd.org/ssh.1">ssh(1)</a>,
        <a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>:
        remove vestigial support for KRL
        signatures When the KRL format was originally defined, it included
        support for signing of KRL objects. However, the code to sign KRLs
        and verify KRL signatures was never completed in OpenSSH. This
        release removes the partially-implemented code to verify KRLs.
        All OpenSSH tools now ignore KRL_SECTION_SIGNATURE sections in
        KRL files.
     <li>All: fix a number of memory leaks and unreachable/harmless integer
        overflows.
    <li><a href="https://man.openbsd.org/ssh-agent.1">ssh-agent(1)</a>,
        <a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        don't truncate strings logged from PKCS#11 modules
    <li><a href="https://man.openbsd.org/sshd.8">sshd(8)</a>,
        <a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        better validate CASignatureAlgorithms in
        ssh_config and sshd_config. Previously this directive would accept
        certificate algorithm names, but these were unusable in practice as
        OpenSSH does not support CA chains.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        make <code>ssh -Q CASignatureAlgorithms</code> only list signature
        algorithms that are valid for CA signing. Previous behaviour was
        to list all signing algorithms, including certificate algorithms.
    <li><a href="https://man.openbsd.org/ssh-keyscan.1">ssh-keyscan(1)</a>:
        gracefully handle systems where rlimits or the
        maximum number of open files is larger than INT_MAX
    <li><a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen(1)</a>:
        fix "no comment" not showing on when running
        <code>ssh-keygen -l</code> on multiple keys where one has a comment
        and other following keys do not.
    <li><a href="https://man.openbsd.org/scp.1">scp(1)</a>,
        <a href="https://man.openbsd.org/sftp.1">sftp(1)</a>:
        adjust ftruncate() logic to handle servers that
        reorder requests. Previously, if the server reordered requests then
        the resultant file would be erroneously truncated.
    <li><a href="https://man.openbsd.org/ssh.1">ssh(1)</a>:
        don't incorrectly disable hostname canonicalization when
        CanonicalizeHostname=yes and ProxyJump was explicitly set to
        "none".
    <li><a href="https://man.openbsd.org/scp.1">scp(1)</a>:
        when copying local to remote, check that the source file
        exists before opening an SFTP connection to the server.
    </ul>
  </ul>

<li>Ports and packages:
  <p>Many pre-built packages for each architecture:
  <!-- number of FTP packages minus SHA256, SHA256.sig, index.txt -->
  <ul style="column-count: 3">
    <li>aarch64:    11508
    <li>amd64:      11845
    <li>arm:        
    <li>i386:       10603
    <li>mips64:     
    <li>powerpc:    
    <li>powerpc64:  
    <li>riscv64:    
    <li>sparc64:    
  </ul>

  <p>Some highlights:
  <ul style="column-count: 3"><!-- XXX all need to be checked/updated 2023-03-04 -->
    <li>Asterisk 16.30.1, 18.19.0 and 20.4.0
    <li>Audacity 3.3.3
    <li>CMake 3.27.5
    <li>Chromium 117.0.5838.149
    <li>Emacs 29.1
    <li>FFmpeg 4.4.4
    <li>GCC 8.4.0 and 11.2.0
    <li>GHC 9.2.7
    <li>GNOME 44
    <li>Go 1.21.1
    <li>JDK 8u382, 11.0.20 and 17.0.8
    <li>KDE Applications 23.08.0
    <li>KDE Frameworks 5.98.0
    <li>Krita 5.1.5
    <li>LLVM/Clang 13.0.0 and 16.0.6
    <li>LibreOffice 7.6.2.1
    <li>Lua 5.1.5, 5.2.4, 5.3.6 and 5.4.6
    <li>MariaDB 10.9.6
    <li>Mono 6.12.0.199
    <li>Mozilla Firefox 118.0.1 and ESR 115.3.1
    <li>Mozilla Thunderbird 115.3.1
    <li>Mutt 2.2.12 and NeoMutt 20230517
    <li>Node.js 18.18.0
    <li>OCaml 4.12.1
    <li>OpenLDAP 2.6.6
    <li>PHP 7.4.33, 8.0.30, 8.1.24 and 8.2.11
    <li>Postfix 3.7.3
    <li>PostgreSQL 15.4
    <li>Python 2.7.18, 3.9.18, 3.10.13 and 3.11.5
    <li>Qt 5.15.10 and 6.5.2
    <li>R 4.2.3
    <li>Ruby 3.0.6, 3.1.4 and 3.2.2
    <li>Rust 1.72.1
    <li>SQLite 3.42.0
    <li>Shotcut 23.07.29
    <li>Sudo 1.9.14.2
    <li>Suricata 6.0.12
    <li>Tcl/Tk 8.5.19 and 8.6.13
    <li>TeX Live 2022
    <li>Vim 9.0.1897 and Neovim 0.9.1
    <li>Xfce 4.18
  </ul>
  <p>

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

<li>The system includes the following major components from outside suppliers:
  <ul><!-- XXX all need to be checked/updated 2023-03-04 -->
    <li>Xenocara (based on X.Org 7.7 with xserver 21.1.8 + patches,
        freetype 2.13.0, fontconfig 2.14.2, Mesa 22.3.7, xterm 378,
        xkeyboard-config 2.20, fonttosfnt 1.2.2 and more)
    <li>LLVM/Clang 13.0.0 (+ patches)
    <li>GCC 4.2.1 (+ patches) and 3.3.6 (+ patches)
    <li>Perl 5.36.1 (+ patches)
    <li>NSD 4.7.0
    <li>Unbound 1.18.0
    <li>Ncurses 5.7
    <li>Binutils 2.17 (+ patches)
    <li>Gdb 6.3 (+ patches)
    <li>Awk September 12, 2023
    <li>Expat 2.5.0
  </ul>

</ul>
</section>

<hr>

<section id=install>
<h3>How to install</h3>
<p>
Please refer to the following files on the mirror site for
extensive details on how to install OpenBSD 7.4 on your machine:

<ul>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/alpha/INSTALL.alpha">
	.../OpenBSD/7.4/alpha/INSTALL.alpha</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/amd64/INSTALL.amd64">
	.../OpenBSD/7.4/amd64/INSTALL.amd64</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/arm64/INSTALL.arm64">
	.../OpenBSD/7.4/arm64/INSTALL.arm64</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/armv7/INSTALL.armv7">
	.../OpenBSD/7.4/armv7/INSTALL.armv7</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/hppa/INSTALL.hppa">
	.../OpenBSD/7.4/hppa/INSTALL.hppa</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/i386/INSTALL.i386">
	.../OpenBSD/7.4/i386/INSTALL.i386</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/landisk/INSTALL.landisk">
	.../OpenBSD/7.4/landisk/INSTALL.landisk</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/loongson/INSTALL.loongson">
	.../OpenBSD/7.4/loongson/INSTALL.loongson</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/luna88k/INSTALL.luna88k">
	.../OpenBSD/7.4/luna88k/INSTALL.luna88k</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/macppc/INSTALL.macppc">
	.../OpenBSD/7.4/macppc/INSTALL.macppc</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/octeon/INSTALL.octeon">
	.../OpenBSD/7.4/octeon/INSTALL.octeon</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/powerpc64/INSTALL.powerpc64">
	.../OpenBSD/7.4/powerpc64/INSTALL.powerpc64</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/riscv64/INSTALL.riscv64">
	.../OpenBSD/7.4/riscv64/INSTALL.riscv64</a>
<li><a href="https://ftp.openbsd.org/pub/OpenBSD/7.4/sparc64/INSTALL.sparc64">
	.../OpenBSD/7.4/sparc64/INSTALL.sparc64</a>
</ul>
</section>

<hr>

<section id=quickinstall>
<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>OpenBSD/alpha:</h3>

<p>
If your machine can boot from CD, you can write <i>install74.iso</i> or
<i>cd74.iso</i> to a CD and boot from it.
Refer to INSTALL.alpha for more details.

<h3>OpenBSD/amd64:</h3>

<p>
If your machine can boot from CD, you can write <i>install74.iso</i> or
<i>cd74.iso</i> to a CD and boot from it.
You may need to adjust your BIOS options first.

<p>
If your machine can boot from USB, you can write <i>install74.img</i> or
<i>miniroot74.img</i> to a USB stick and boot from it.

<p>
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>
If you are planning to dual boot OpenBSD with another OS, you will need to
read INSTALL.amd64.

<h3>OpenBSD/arm64:</h3>

<p>
Write <i>install74.img</i> or <i>miniroot74.img</i> to a disk and boot from it
after connecting to the serial console.  Refer to INSTALL.arm64 for more
details.

<h3>OpenBSD/armv7:</h3>

<p>
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.

<h3>OpenBSD/hppa:</h3>

<p>
Boot over the network by following the instructions in INSTALL.hppa or the
<a href="hppa.html#install">hppa platform page</a>.

<h3>OpenBSD/i386:</h3>

<p>
If your machine can boot from CD, you can write <i>install74.iso</i> or
<i>cd74.iso</i> to a CD and boot from it.
You may need to adjust your BIOS options first.

<p>
If your machine can boot from USB, you can write <i>install74.img</i> or
<i>miniroot74.img</i> to a USB stick and boot from it.

<p>
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>
If you are planning on dual booting OpenBSD with another OS, you will need to
read INSTALL.i386.

<h3>OpenBSD/landisk:</h3>

<p>
Write <i>miniroot74.img</i> to the start of the CF
or disk, and boot normally.

<h3>OpenBSD/loongson:</h3>

<p>
Write <i>miniroot74.img</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.

<h3>OpenBSD/luna88k:</h3>

<p>
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.

<h3>OpenBSD/macppc:</h3>

<p>
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>
Alternatively, at the Open Firmware prompt, enter <i>boot cd:,ofwboot
/7.4/macppc/bsd.rd</i>

<h3>OpenBSD/octeon:</h3>

<p>
After connecting a serial port, boot bsd.rd over the network via DHCP/tftp.
Refer to the instructions in INSTALL.octeon for more details.

<h3>OpenBSD/powerpc64:</h3>

<p>
To install, write <i>install74.img</i> or <i>miniroot74.img</i> to a
USB stick, plug it into the machine and choose the <i>OpenBSD
install</i> menu item in Petitboot.
Refer to the instructions in INSTALL.powerpc64 for more details.

<h3>OpenBSD/riscv64:</h3>

<p>
To install, write <i>install74.img</i> or <i>miniroot74.img</i> to a
USB stick, and boot with that drive plugged in.
Make sure you also have the microSD card plugged in that shipped with the
HiFive Unmatched board.
Refer to the instructions in INSTALL.riscv64 for more details.

<h3>OpenBSD/sparc64:</h3>

<p>
Burn the image from a mirror site to a CDROM, boot from it, and type
<i>boot cdrom</i>.

<p>
If this doesn't work, or if you don't have a CDROM drive, you can write
<i>floppy74.img</i> or <i>floppyB74.img</i>
(depending on your machine) to a floppy and boot it with <i>boot
floppy</i>. Refer to INSTALL.sparc64 for details.

<p>
Make sure you use a properly formatted floppy with NO BAD BLOCKS or your install
will most likely fail.

<p>
You can also write <i>miniroot74.img</i> to the swap partition on
the disk and boot with <i>boot disk:b</i>.

<p>
If nothing works, you can boot over the network as described in INSTALL.sparc64.
</section>

<hr>

<section id=upgrade>
<h3>How to upgrade</h3>
<p>
If you already have an OpenBSD 7.3 system, and do not want to reinstall,
upgrade instructions and advice can be found in the
<a href="faq/upgrade74.html">Upgrade Guide</a>.
</section>

<hr>

<section id=sourcecode>
<h3>Notes about the source code</h3>
<p>
<code>src.tar.gz</code> contains a source archive starting at <code>/usr/src</code>.
This file contains everything you need except for the kernel sources,
which are in a separate archive.
To extract:
<blockquote><pre>
# <kbd>mkdir -p /usr/src</kbd>
# <kbd>cd /usr/src</kbd>
# <kbd>tar xvfz /tmp/src.tar.gz</kbd>
</pre></blockquote>
<p>
<code>sys.tar.gz</code> contains a source archive starting at <code>/usr/src/sys</code>.
This file contains all the kernel sources you need to rebuild kernels.
To extract:
<blockquote><pre>
# <kbd>mkdir -p /usr/src/sys</kbd>
# <kbd>cd /usr/src</kbd>
# <kbd>tar xvfz /tmp/sys.tar.gz</kbd>
</pre></blockquote>
<p>
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.
</section>

<hr>

<section id=ports>
<h3>Ports Tree</h3>
<p>
A ports tree archive is also provided.  To extract:
<blockquote><pre>
# <kbd>cd /usr</kbd>
# <kbd>tar xvfz /tmp/ports.tar.gz</kbd>
</pre></blockquote>
<p>
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>
# <kbd>cd /usr/ports</kbd>
# <kbd>cvs -d anoncvs@server.openbsd.org:/cvs update -Pd -rOPENBSD_7_4</kbd>
</pre></blockquote>
<p>
[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 7.4 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.
</section>
</body>
</html>