Is this possibly the latest Java community buzz? SpringSource Announces Enterprise Maintenance Policy.
Mats Henricson asks What is SpringSource doing with its license? and while the SpringSource Enterprise Maintenance Policy FAQ states that there is no license change, the SpringSource Enterprise Maintenance Policy sure is a change. They summarize it quite consise themselves:
After a new major version of Spring is released, community maintenance updates will be issued for three months to address initial stability issues. Subsequent maintenance releases will be available to SpringSource Enterprise customers. Bug fixes will be folded into the open source development trunk and will be made available in the next major community release of the software.