Hello,
Kamailio SIP Server v3.1.5 stable release is out.
This is a maintenance release of latest stable branch, 3.1, that includes fixes since release of v3.1.4. There is no change to database schema or configuration language structure. Deployments running previous v3.1.x versions are strongly recommended to be upgraded to v3.1.5.
For more details about version 3.1.5, visit:
http://www.kamailio.org/w/2011/09/kamailio-v3-1-5-released/
Cheers, Daniel