If v1.11 is working fine for you, no need to try the v1.2 betas. The v1.2 series has been about re-desgning the memory allocation system which is dry, unglamorous work but necessary if we're going to increase the amount of content and world sizes in the future along with deal with OOM during save games on busy games.
This build won't be the "magic bullet" but it should be better than j for those who have experience OOM.
