Here is the stable 0.8.1 release and the mtn builds based on it

Release notes are published under the official www.i2p2.i2p.xyz page.

Remember: from the release 0.7 on you need Java 1.5 to run I2P, SUNs Java 1.6 IS REALLY preferred!
No more headless installer files - thanks to a update of the installer package the i2pinstall.exe can be run headless!
Use: java -jar i2pinstall-0.8.1.exe -console.

i2psource-0.8.1.tar.bz2 sourcecode
i2psource-0.8.1.tar.bz2.sig .sig file for the source
i2pinstall-0.8.1.exe installer
i2pupdate-0.8.1.zip update package

seedless killed is build.
Added SOCKSv5 outproxy support and user/password authorization for some clients
The zzz forum entry tells you more, as usual.

finally tired is build.