We have just released rsyslog 6.1.5, the new v6-devel.
This is both a stability and a performance enhancement release. Most importantly, imtcp was enhanced to support a small number of worker threads for imtcp processing. This will increase overall processing performance for high-end environments. Stability has improved by including a number of important patches, some of which fix abort conditions.
Please see the ChangeLog for more details.
As always, feedback is appreciated.