LCU Does Not Clean Up Outdated Versions

Posting for a friend.

I found that, after LCU updates, if you go back into the league_client folder, there are multiple copies of certain folders like 0.0.43/[X] vs 0.0.41/[X]. When installing fresh, LoL is about 5.6GB, but because it doesn't properly clean up, it grows and grows (once it's even hit 10+). I installed fresh around 0.0.38/0.0.39 maybe (it was 5.6GB) then, now it's about 6.8GB+).

My folder is currently 11 GB.