The Slony team has released a bug fix release for Slony 2.1.  Slony 
2.1.4 is the next release in the 2.1 series. This release includes the 
following changes from 2.1.3


- Bug #299 :: Fix race condition in MOVE SET where a third node could 
pull data from the old origin using SYNC/snapshot values from the new origin
- Make log_truncate() SECURITY DEFINER.
- Support for PostgreSQL 9.3
- Changes to the WIN32 makefiles


Slony 2.1.4 can be obtained from the slony website at

http://www.slony.info/downloads/2.1/source/slony1-2.1.4.tar.bz2
http://www.slony.info/downloads/2.1/source/slony1-2.1.4-docs.tar.bz2