SSEC v2.6 was just released (finally :)) and you can get more details here: http://www.ossec.net/main/ossec-v2-6-released
We are very happy to announce the availability of OSSEC version 2.6.
This has been a long release cycle, but it is here now with some good new features and very stable (thanks to our beta users). Our manual for the new version is also live at http://www.ossec.net/doc/.
-OSSEC Team