There was version 3.2 released. It contains some bugfixes and performance improvements.
First have a look at this minor API change, if this is relevant to you:
http://docs.castleproject.org/Windsor.Whats-New-In-Windsor-32.ashx#Revamped_property_filtering_API_breaking_change__4