I'm happy to announce that all the transaction improvements scheduled for 5.1 are now in master:

- optimistic  transactions [1]

- single lock owner [2]

- lock reordering (to be released in next BETA) [3]

On top of this some very significant performance improvements were made for pessimistic locking, I'll detail them in a blog.

I'm really keen to see how this affect performance, especially for OGM :-)

The next few weeks I plan to benchmark and profile the code - I'll be back with some more information on this!

[1] https://issues.jboss.org/browse/ISPN-1131

[2] https://issues.jboss.org/browse/ISPN-1137

[3] https://issues.jboss.org/browse/ISPN-1132

Thanks everyone for the input on this!

Cheers,

Mircea