Posted by Juergen Hoeller on the Spring site:
We're pleased to announce that Spring 2.0 M3 has been released.

Spring 2.0 M3 is the third milestone of the next generation of Spring: introducing a reworked validation framework, refined CommonJ support, JSP form tags, etc.

It also contains fixes for various issues discovered since M2. See the changelog for details.

Original note on the Spring site:
http://www.springframework.org/node/241