Latest beta uses less ram?

Ok, this is going to sound really dumb and i know i'm not providing much information here, but i've noticed my rclone mount uses significantly less ram when using the latest beta vs the latest release.
Is this a thing?
I swear i've tested this by going back and forth.

Which versions? I'm not aware that we fixed anything in particular, but libraries got updated and the go compiler so all of those things might make a difference.