If left open, MongoChef (specifically, the javaw.exe) will begin to consume but not release memory, eventually using over 1GB of memory in just a couple of days. The user must close and reopen the app to release the memory. Obviously, this is less than ideal.

This has been an issue since v3 at least. I'm on v4.3.0, and it is still not fixed, and in looking at the change log for v4.4, it does not look like it was addresses there, either.