Acceleo.org was created 4 years ago, and as the time goes, the Team has been more and more convinced that the MOF Model To Text OMG specification was the way to go for the project. We started to code a reference implementation for the standard within the Eclipse M2T project. We have managed to provide nice tooling, simple syntax and efficient code generation with all the pragmatism we had about Acceleo.org. There aren't a lot of differences between the old version of acceleo and the new one.
We are confident that the Acceleo community gain value from moving to a self hosted project to an Eclipse one, and that end users will follow the transfert from Acceleo.org to Eclipse.org as we will provide the same level of functionnalities and we will insure an interoperability between the old syntax and the new syntax (the standard one).
The Acceleo Team will continue to maintain the old syntax of Acceleo outside of eclipse (www.acceleo.org ) during some few years, but the new versions and the new features will take place on Eclipse.org. In the next release you'll have an automated tooling helping you to migrate your templates from a syntax to another.
For Acceleo lover, you will find in Eclipse Acceleo everything you have loved in the Acceleo.org version and more (the standard compliance with more documentation). This specification is really a good one: http://www.omg.org/spec/MOFM2T/1.0/
At the moment, those who need a perfect stability must continue to use the Acceleo.org version (2.6). As time goes on, Eclipse Acceleo is better and better and you can already have a try right now (0.8). That said, we still need some few month to get the same stability level between our current stable version and the new one. The next generation Acceleo will be ready for the next Eclipse simultaneous release (Helios).
