Download from the Maven repository.

Changelog for TomP2P 4.1.0-preview

* Removed Guava, switched back to Java collections
* Removed BerkeleyDB, switched to JDBM, rewrote storage
* Added build-pattern to create peers
* Switched from Java5 to Java6
* Many, many bugs fixed
* Added new examples
* Further preparation for MapReduce

Please note that there are still open issues with storing more than 8MB on disk and two failed replication testcases. The reason for this release is that I need this version for the P2P lecture I'm giving at UZH.