Hey, can't wait to try this out. I have a very new computer, i7, GTX660, 16GB RAM. However when running Tekkit on Far Render Distance after a little bit of time, the game will usually crash, and I am informed by Windows that Java has stopped running, this doesn't seem happen on Normal Render Distance. With the changes made in this update it may stop this from happening. Although it seems a little strange given that my computer should have no issues handling Tekkit on Far Render Distance. I am allocating usually between 12 to 14 GB of RAM in the launcher in case anyone is wondering that.
Anyway, I'll let you guys know if this update fixes this issue.