» Clirr public API change reporter

A recent blog entry by Vincent Massol drew my attention to the Clirr project.
Seems to be a very, very interesting tool to those whom develop a framework (like me) that's used by other applications and where you definately have to pay attention to public APIs. Vincent's blog entry also points to this: Cactus' Public APIs/SPIs definition.
I'll definately give Clirr a shot :-)