Pre 0004: - Certain errors in your application to do with using other code which does not exist can cause an 'Unknown error' issue. This is now fixed, by moving back to B::Hooks::EndOfScope, but this (used to) cause issues with the following modules: - Catalyst-Plugin-Session-State-Cookie - Catalyst-Plugin-Session-Store-FastMmap - Catalyst-Plugin-Session-PerUser - Catalyst-Plugin-Session-Store-File - Catalyst-Authentication-Credential-HTTP - Catalyst-Plugin-SmartURI according to comments in r8991. Retest these before shipping anything.. - Document method modifiers called on things before setup not working in your app class. Known Bugs: - Bug ->go or ->visit causes actions which have Args or CaptureArgs caled twice when called via ->go or ->visit. Test app: http://github.com/bobtfish/catalyst-app-bug-go_chain/tree/master Compatibility warnings to add: - $self->config should warn as config should only ever be called as a class method. Proposed functionality / feature additions: - Log setup needs to be less lame, so Catalyst::Plugin::Log::* can die in a fire. Having $c->log_class would be a good start. kane volunteered to do some of this. Simple example: Catalyst::Plugin::Log::Colorful should just be a subclass of Catalyst::Log, no ::Plugin:: needed. See also: Catalyst::Plugin::Log::Dispatch and http://github.com/willert/catalyst-plugin-log4perl-simple/tree