Update: Added bitless's hack.
My 5850@918 on 2.1 went from 369 to 378, so a 2.4% increase.
Just installed the one with June 27th .jar file on the machines out in the 'server oven'.
Great stuff! Pretty much got +10 MegaHootzels per card.
Mostly running #! Linux AMD64, drivers v11.2 / 11.3, OpenCL 2.1, BOINC running 100% on all CPU cores/threads:
1x5850@775/875 went from 304 to 314
2x5830x@875/900 went from 533 to 553
1x5830@875/900 went from 266 to 276
6970@885/800 + 6870@995/910 went from 670 to 694. driver v11.6, OpenCL 2.4.