Activate 1.2 is available at maven central.
The main feature of this version is the Polyglot Persistence. For example, an entity from a relational database can have a property that is an entity from a non-relational database. Transactions are distributed using the two-phase commit protocol.
Another important feature is the optimistic offline locking. Now it is possible to use Activate as a Distribute STM without the need to use the Coordinator central service.
Release notes (with links to the documentation):