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<title>OpenBSD-current changes</title>
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<p>
<h2><font color=#e00000>Changes made between OpenBSD 2.9 and OpenBSD-current</font><hr></h2>

<p>
This is a partial list of the major machine independent changes
(i.e., these are the changes people ask about most often).  Port
specific changes have also been made, and are sometimes mentioned
in the pages for the specific <a href="plat.html">platforms</a>.

<p>
Changes to the <a href="ports.html">ports</a> collection are documented
<a href="portsplus/index.html">here</a>.

<p>
Note: <font color=#e00000>Problems for which patches exist are marked in red</font>.

<p>
<h3>
<a href="plus20.html">For changes leading up to OpenBSD 2.0, click here</a>.<br>
<a href="plus21.html">For changes leading up to OpenBSD 2.1, click here</a>.<br>
<a href="plus22.html">For changes leading up to OpenBSD 2.2, click here</a>.<br>
<a href="plus23.html">For changes leading up to OpenBSD 2.3, click here</a>.<br>
<a href="plus24.html">For changes leading up to OpenBSD 2.4, click here</a>.<br>
<a href="plus25.html">For changes leading up to OpenBSD 2.5, click here</a>.<br>
<a href="plus26.html">For changes leading up to OpenBSD 2.6, click here</a>.<br>
<a href="plus27.html">For changes leading up to OpenBSD 2.7, click here</a>.<br>
<a href="plus28.html">For changes leading up to OpenBSD 2.8, click here</a>.<br>
<a href="plus29.html">For changes leading up to OpenBSD 2.9, click here</a>.<br>
<br>
</h3>

<hr>

<p>
<h3><font color=#0000e0>We are working on OpenBSD-current.</font></h3><p>
<ul>
<li><font color=#e00000><strong>RELIABILITY FIX: use correct <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=db&sektion=3">db(3)</a> pointers in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pwd_mkdb&sektion=8">pwd_mkdb(8)</a>, and don't star out empty passwords</strong></font><br>
    <a href=errata.html#pwd_mkdb>A source code patch is available</a>.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li>...
<li><font color=#e00000><strong>RELIABILITY FIX: compute length correctly on certificates in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=isakmpd&sektion=8">isakmpd(8)</a>.</strong></font><br>
    <a href=errata.html#isakmpd>A source code patch is available</a>.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li>...
<li><font color=#e00000><strong>SECURITY FIX: verify location when using <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fts&sektion=3">fts(3)</a> to pop up directories.</strong></font><br>
    <a href=errata.html#fts>A source code patch is available</a>.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li>...
<li><font color=#e00000><strong>SECURITY FIX: Update to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sendmail&sektion=8">sendmail(8)</a> 8.11.4 which addresses signal race conditions.</strong></font><br>
    <a href=errata.html#sendmail>A source code patch is available</a>.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li>...
<li>More <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=select&sektion=2">select(2)</a> fixes in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&sektion=1">ssh(1)</a>.
<li>Fix X11 client bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&sektion=1">ssh(1)</a>.
<li>PMAP_NEW support on the vax and hp300.
<li>Create COMPAT_23 and COMPAT_25 options.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vr&sektion=4">vr(4)</a>, handle suspend mode better on the VT6102.
<li>Do not check return values for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=malloc&sektion=9">malloc(9)</a> calls with M_WAIT or M_WAITOK.
<li>New option: SMALL_KERNEL, subtly changes some kernel semantics to change the kernel size significantly.  Use *only* for boot floppies.
<li>Change ip_sum semantics in ip_output().
<li>Compress <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ac97&sektion=4">ac97(4)</a> vendor tables.
<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ac97&sektion=4">ac97(4)</a> now knows about rev 2.2.
<li>Squish compatopts to a more sensible set, killing COMPAT_09, COMPAT_10, COMPAT_11.
<li>Shrink the alpha boot blocks a bit.
<li>We no longer support ECOFF kernel loading in the alpha boot block.
<li>Teach <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ac97&sektion=4">ac97(4)</a> about more CODEC models.
<li>At boot time, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=swapon&sektion=8">swapon(8)</a> before <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fsck&sektion=8">fsck(8)</a> is run.
<li>Fix <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fts&sektion=3">fts(3)</a> to handle very long paths.
<li>Repair various signal handler bugs in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pppd&sektion=8">pppd(8)</a>.
<li>Handle memory allocation failures in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fsck_ffs&sektion=8">fsck_ffs(8)</a> and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fsck_ext2fs&sektion=8">fsck_ext2fs(8)</a> better.
<li>Fix a recently introduced bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=supfilsrv&sektion=8">supfilsrv(8)</a>.
<li>Correct acceptance of ARP packets coming in on non-IP <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bridge&sektion=4">bridge(4)</a> interfaces.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=txp&sektion=4">txp(4)</a> now works on the alpha.
<li>More fixes to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=make&sektion=1">make(1)</a>.
<li>Check a <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=calloc&sektion=3">calloc(3)</a> in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=fsck_ffs&sektion=8">fsck_ffs(8)</a>.
<li>Add a temporary DTYPE_CRYPTO until device cloning support shows up.
<li>Fixes to fdescfs.
<li>busdma changes to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=txp&sektion=4">txp(4)</a>, preparing for the alpha.
<li>Split <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wi&sektion=4">wi(4)</a> into bus dependent and independent parts.
<li>On hp300, splhigh() in cpu_exit().
<li>Misc cleanup of the shared m68k codebase.
<li>More <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bus_dmamap_sync&sektion=9">bus_dmamap_sync(9)</a> in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=hifn&sektion=4">hifn(4)</a>.
<li>Initial non-working alpha <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ld.so&sektion=1">ld.so(1)</a> support.
<li>Support newer versions of the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=lmc&sektion=4">lmc(4)</a> cards.
<li>Kill a debug message in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ubsec&sektion=4">ubsec(4)</a>.
<li>Add swiss german keyboard layout to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wscons&sektion=4">wscons(4)</a>.
<li>Smoke out the OLD_PIPE code.
<li>krb4-1.0.8
<li>Bug fix to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=make&sektion=1">make(1)</a>.
<li>Speed up top-level tree Makefiles by doing exec for subshells in new directories.
<li>Artfull fiddling of the kernel pipe stat code.
<li>No need for setgid kmem on <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=iostat&sektion=8">iostat(8)</a> anymore.
<li>Add more <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sysctl&sektion=3">sysctl(3)</a> support in the kernel.
<li>Make the alpha floppies fit again...
<li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=hifn&sektion=4">hifn(4)</a> use <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bus_dma&sektion=9">bus_dma(9)</a>.  Now works on the alpha.
<li>Initial cut at userland hardware <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=crypto&sektion=4">crypto(4)</a> support.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ubsec&sektion=4">ubsec(4)</a>, initial support for the Broadcom 5820.
<li>Honour ddb.console on sun3.
<li>On the pmax, fix a curproc misuse.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pcibios&sektion=4">pcibios(4)</a>, deal with buggy BIOSs which incorrectly leave the router as 000:00:0.
<li>hp300 cleanup in progress...
<li>Solve a problem of Lilliputan proportions in powerpc <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=isinf&sektion=3">isinf(3)</a>.
<li>Mickey goes mad and does a <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=strlcpy&sektion=3">strlcpy(3)</a> whack on src/bin.
<li>Unify rdsetroot and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=rd&sektion=4">rd(4)</a> support between almost all architectures.
<li>Man page cleanups galore.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=hifn&sektion=4">hifn(4)</a> attempt to support the Hi/Fn 7951.
<li>Do stdout/stderr flushing in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sshd&sektion=8">sshd(8)</a> using non-blocking mode.
<li>Fix kerberosIV versioning link problem.
<li>Cleanup MAP_COPY flags in the tree.
<li>Use genassym.cf on alpha.
<li>Unify the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=rd&sektion=4">rd(4)</a> support.
<li>Update <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sysctl&sektion=8">sysctl(8)</a> and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vmstat&sektion=8">vmstat(8)</a> to use the new interfaces.
<li>Make more data available via the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sysctl&sektion=3">sysctl(3)</a> interface.
<li>Handle fastroute in the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bridge&sektion=4">bridge(4)</a>.
<li>hp300 man page cleanup.
<li>Fix a resource leak in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=twe&sektion=4">twe(4)</a>.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li>Use <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=madvise&sektion=2">madvise(2)</a> option with MADV_FREE for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=malloc&sektion=3">malloc(3)</a> 'h' flag.
<li>Support MADV_DONTNEED and MADV_FREE in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=madvise&sektion=2">madvise(2)</a>.
<li>Switch sparc to UVM and PMAP_NEW.
<li>Support HP425e.
<li>Refill <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=txp&sektion=4">txp(4)</a> receive ring only when empty -- performance enhancement.
<li>Fix SSH2 <b>-R</b> support in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&sektion=1">ssh(1)</a>.
<li>More pmap/uvm interface changes.
<li>Correct signal handling in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ping6&sektion=8">ping6(8)</a>.
<li>Implement screen blanker in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wscons&sektion=4">wscons(4)</a>.
<li>Attempt to support hifn7951 in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=hifn&sektion=4">hifn(4)</a>.
<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=realloc&sektion=3">realloc(3)</a> fixes to ipf(8).
<li>ipf 3.4.17
<li>Fix kernel extent code to be more careful about ranges.
<li>UVM support for mac68k.
<li>Change i386 in_cksum failure to a <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=printf&sektion=9">printf(9)</a>, instead of a <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=panic&sektion=9">panic(9)</a>.<br>
    <a href="stable.html"><font color=#00b000>[Applied to stable]</font></a>
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=txp&sektion=4">txp(4)</a>, add support for hardware <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vlan&sektion=4">vlan(4)</a>.
<li>Fix a bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=make&sektion=1">make(1)</a> exposed by the recent jumbo patch.
<li>Fix <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ti&sektion=4">ti(4)</a> to handle <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vlan&sektion=4">vlan(4)</a> properly.
<li>vsunlock fixes to UVM.
<li>Signal ignore bug fix to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&sektion=1">ssh(1)</a>.
<li>Kill i386 VM & pmap_old support.
<li>Fix process priority bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=atrun&sektion=8">atrun(8)</a>.
<li>Enable <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vlan&sektion=4">vlan(4)</a> by default in GENERIC kernels.
<li>Fix <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pread&sektion=3">pread(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=preadv&sektion=3">preadv(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pwrite&sektion=3">pwrite(3)</a>, and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pwritev&sektion=3">pwritev(3)</a> on big endian architectures.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sendmail&sektion=8">sendmail(8)</a>, use FAST_PID_RECYCLE.
<li>Remove excess (vaddr_t) casts.
<li>Get rid of CLSIZE and friends.
<li>Increase <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=strlcpy&sektion=3">strlcpy(3)</a> in parts of the tree.
<li>Some minor changes to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=isakmpd&sektion=8">isakmpd(8)</a>.
<li>Cleanup M_* malloc types in the kernel.
<li>UVM for the hp300.
<li>Numerous cleanups to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sup&sektion=1">sup(1)</a>.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=systat&sektion=8">systat(8)</a>, handle <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=kvm_nlist&sektion=3">kvm_nlist(3)</a> failing.
<li>Fix a channel race in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sshd&sektion=8">sshd(8)</a>.
<li>Document that <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=nc&sektion=1">nc(1)</a> no longer has a -e option.
<li>Fix localhost handling bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=httpd&sektion=8">httpd(8)</a>.
<li>Jumbo patch to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=make&sektion=1">make(1)</a> that has been brewing for a while.
<li>Various improvements to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=mg&sektion=1">mg(1)</a>.
<li>Big USB code update.
<li>Fix a signed vs unsigned error in the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=gm&sektion=4">gm(4)</a> Ethernet driver.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wump&sektion=6">wump(6)</a>, improve our cave topology algorithm. Don't ask.
<li>Force -h to override the BLOCKSIZE environment in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=du&sektion=1">du(1)</a>.
<li>Substantial updates to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sup&sektion=1">sup(1)</a>.
<li>Fix a register save/restore bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=clcs&sektion=4">clcs(4)</a> so that suspend/resume works better.
<li>Allow the right CTRL+ALT keys to work as the left ones do in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wskbd&sektion=4">wskbd(4)</a>.
<li>Continue to hack our new <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=txp&sektion=4">txp(4)</a> driver into shape.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ifconfig&sektion=8">ifconfig(8)</a>, implement support for removing tunnel outer IP address pair.
<li>Revert a buggy optimization in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=tsort&sektion=1">tsort(1)</a>.
<li>Use <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pread&sektion=2">pread(2)</a> in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=nlist&sektion=3">nlist(3)</a> instead of abusing <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=lseek&sektion=2">lseek(2)</a> with <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=read&sektion=2">read(2)</a>.
<li>Remove cruft leftover from the old PCVT console driver.
<li>Fix filename tab-completion in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=mg&sektion=1">mg(1)</a>.
<li>Convert some more drivers to the new <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=timeout&sektion=9">timeout(9)</a> interface.
<li>Whack dtom() in the kernel. Fo'get about it.
<li>Avoid a NULL pointer dereference in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=faithd&sektion=8">faithd(8)</a>.
<li>Various reset and delay fixes in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wdc&sektion=4">wdc(4)</a> to help certain ATAPI devices.
<li>Deal with suspend/resume more cleanly in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pccbb&sektion=4">pccbb(4)</a>.
<li>Better hints handling and memory allocation in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=tsort&sektion=1">tsort(1)</a>.
<li>Correct an error condition in /etc/ksh.kshrc.
<li>Add a koi8-r keyboard layout for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=wskbd&sektion=4">wskbd(4)</a>.
<li>Allow interoperability between OpenSSH and older ssh-2.0.x variants with weaker key generation.
<li>Instrument improved locking and rework SCSI a bit in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ami&sektion=4">ami(4)</a>.
<li>Cleanups to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ancontrol&sektion=8">ancontrol(8)</a>.
<li>Add a -b option to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&sektion=1">ssh(1)</a>, similar to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=telnet&sektion=1">telnet(1)</a>'s equivalent.
<li>Fix a memory handling bug in <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=telnet&sektion=1">telnet(1)</a>.
<li>Use <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pool&sektion=9">pool(9)</a> interface for the VFS cache.
<li>Improve OpenSSH interoperability with ssh.com-2.0.x clients.
<li>In the mvme88k port, replace resource maps with extents.
<li>Numerous fixes and updates to <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sup&sektion=1">sup(1)</a>.
</ul>
<p>

This list mentions mostly platform-independent changes.  For a list of changes
made in a particular platform, please check the page for that platform.  If you
find them not listed there, the changes are either (1) not being documented or
(2) are documented here.<br><br>

<hr>
<p>
<h3>
<a href="plus20.html">For changes leading up to OpenBSD 2.0, click here</a>.<br>
<a href="plus21.html">For changes leading up to OpenBSD 2.1, click here</a>.<br>
<a href="plus22.html">For changes leading up to OpenBSD 2.2, click here</a>.<br>
<a href="plus23.html">For changes leading up to OpenBSD 2.3, click here</a>.<br>
<a href="plus24.html">For changes leading up to OpenBSD 2.4, click here</a>.<br>
<a href="plus25.html">For changes leading up to OpenBSD 2.5, click here</a>.<br>
<a href="plus26.html">For changes leading up to OpenBSD 2.6, click here</a>.<br>
<a href="plus27.html">For changes leading up to OpenBSD 2.7, click here</a>.<br>
<a href="plus28.html">For changes leading up to OpenBSD 2.8, click here</a>.<br>
<a href="plus29.html">For changes leading up to OpenBSD 2.9, click here</a>.<br>
<br>
</h3>

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