Choreographed releases. (Score 4, Insightful)

I've been fairly impressed with Firebird and hope the move to 1.5 will start the integration of Firebird concerns, bugs, and issues to the main trunk to be hashed out.

I think the Mozilla developers have been doing an excellent job lately, especially with respect to choreographing releases with future development needs. --- the switch-over to Firebird could have been disasterous or annoying, but it's been smooth.