People trading some known bugs for a whole heap of new ones, ones likely to change all the time? Doesn't sound like the smartest operations move.

Given they've gone and written stuff to automatically restart the processes under certain conditions anyway, might as well just catch the memory leak and restart, rather than gamble with "not for production use" software in production environments.

The build we're using was considered pretty safe and was performing better for us than 3.7.x - of course we aren't grabbing the new nightly constantly and plan to move to a "stable" branch soon :)