This is a bug fix release which addresses issues found in earlier versions of Clover-for-Grails.
1) It is possible to choose among three Clover's coverage recorder types:
More details: Coverage Recorders.
Example how to use SHARED recorder with Grails can be found here.
See also change log for Clover-for-Ant, Clover-for-Maven, Clover-for-Eclipse, Clover-for-IDEA.