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cool stuff happening in 3.9-current already!

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<p>
<h2><font color="#e00000">Changes made between OpenBSD 3.9 and OpenBSD-current</font></h2>
<hr>

<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>
There is a separate <a href="portsplus/index.html">list of Changes to the ports collection</a>.

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

<p>
<h3>
For changes in other releases, click below:<br>
<a href="plus20.html">2.0</a>,
<a href="plus21.html">2.1</a>,
<a href="plus22.html">2.2</a>,
<a href="plus23.html">2.3</a>,
<a href="plus24.html">2.4</a>,
<a href="plus25.html">2.5</a>,
<a href="plus26.html">2.6</a>,
<a href="plus27.html">2.7</a>,
<a href="plus28.html">2.8</a>,
<a href="plus29.html">2.9</a>,
<a href="plus30.html">3.0</a>,
<a href="plus31.html">3.1</a>,
<a href="plus32.html">3.2</a>,
<a href="plus33.html">3.3</a>,
<a href="plus34.html">3.4</a>,
<a href="plus35.html">3.5</a>,
<a href="plus36.html">3.6</a>,
<a href="plus37.html">3.7</a>,
<a href="plus38.html">3.8</a>,
<a href="plus39.html">3.9</a>.
<br>
</h3>

<p>
<h3><font color="#0000e0">We are working on OpenBSD-current.</font></h3><p>
<p>

<ul>
<!-- 2006/03/15 -->
<li>Install <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=apm&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">apm(4)</a> utilities on amd64 so that the hw.setperf sysctl for CPU speed can be conveniently manipulated through them.
<li>Fix amd64's <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=exp&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">exp(3)</a> implementation which was broken in certain cases by switching to the C version.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pf&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">pf(4)</a>, implement Unicast Reverse Path Forwarding (uRPF) which optionally verifies that a packet is received on the interface that holds the route back to the packet's source address. This makes it an automatic ingress filter, but only when routing is fully symmetric.
<li>Fix <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pkg_add&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">pkg_add(1)</a> to work with stdin input (pkg_add -).
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">ssh(1)</a>, set TCP_NODELAY flag for all connections not just interactive ones - fixes poor network performance and protocol stalls under some network conditions.
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=mount&apropos=0&sektion=8&manpath=OpenBSD+Current&arch=i386&format=html">mount(8)</a>, add -s flag which skips a mount if the file system is already mounted, handy for MFS partitions.
<li>Change the install script question 'Do you expect to run the X Window System?' to have 'no' as a default answer, to prevent people accidentially hitting return on the prompt on machines that don't need it.
<li>Foil potential <a href="http://en.wikipedia.org/wiki/Timing_attack">timing attacks</a> in login by using <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=bcrypt&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">bcrypt(3)</a> on non-existent users as well, instead of DES.
<li>Update AMD PowerNow K8 support on i386 and add it to amd64.
<li>Fix the long delay probe for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=adb&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=macppc&format=html">adb(4)</a> on the Mac Mini.
<li>Make <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pkg_add&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">pkg_add(1)</a> work with scp (see PKG_PATH).
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ssh&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">ssh(1)</a>, implement diffie-hellman-group-exchange-sha256 key exchange method (which is now default when client/server support it).
<li>In <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ipsecctl&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">ipsecctl(8)</a>, add dynamic option ("ike dynamic esp") which uses the system hostname as source identifier instead of the IP address, for dynamic setups. See <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ipsec.conf&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">ipsec.conf(5)</a>.
<li>OpenCVS development continues with new energy.
<li>Move remaining bits of the network stack to use splnet instead of splimp, see <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=spl&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">spl(9)</a>.
<li>Initial 1-Wire <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=onewire&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">onewire(4)</a> bus support, including drivers for <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=gpioow&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">gpioow(4)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=owid&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">owid(4)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=owtemp&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html">owtemp(4)</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>
For changes in other releases, click below:<br>
<a href="plus20.html">2.0</a>,
<a href="plus21.html">2.1</a>,
<a href="plus22.html">2.2</a>,
<a href="plus23.html">2.3</a>,
<a href="plus24.html">2.4</a>,
<a href="plus25.html">2.5</a>,
<a href="plus26.html">2.6</a>,
<a href="plus27.html">2.7</a>,
<a href="plus28.html">2.8</a>,
<a href="plus29.html">2.9</a>,
<a href="plus30.html">3.0</a>,
<a href="plus31.html">3.1</a>,
<a href="plus32.html">3.2</a>,
<a href="plus33.html">3.3</a>,
<a href="plus34.html">3.4</a>,
<a href="plus35.html">3.5</a>,
<a href="plus36.html">3.6</a>,
<a href="plus37.html">3.7</a>.
<a href="plus38.html">3.8</a>,
<a href="plus39.html">3.9</a>.
<br>
</h3>

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