I took a look at the readme, but I can't translate it. I did figure out that all the updates have the same data in that readme, so it probably just has some instructions.
From the filenames at the watts247 site, I can guess this:
6022 - Something about Fault 01 on ESC
6302 - Something about feed power
6305 - Something about Fault 08
6306 - Fixes for settings getting lost when running parallel
I am planning on putting 6306 on tonight, I've seen about a half dozen fault 08s in the last 2 months. Maybe that 6305 update helps with that.