I'm pleased to announce the first release of Grails since the acquisition of G2One by SpringSource. Grails 1.0.4 includes a number of improvements as well as upgrades to key libraries that underpin Grails and can be downloaded from the Grails download page. More specifically Grails 1.0.4 ships with the latest Spring 2.5.6 release that came out a week or so ago.

Beyond the improvements there are a couple of interesting new features in this release. The first is the addition of a feature that better supports mapping of Hibernate user type definitions in GORM. You can now map custom user types…