same compatibility with 5.3.2
Might have different compatibility with other system version, because there are different memory location loadiine can use, and sometime it's smaller, so some games with big RPX/RPL files "can" have issue. (we haven't tested, and we don't know the size limit yet, but it will be different based on possible free memory).
There's no new fixes, if that's what you expected.
just a GUI and new wiiu version added. fixes and compatibility will be done later, first we will release the GUI version, with the new libraries (which will allows more homebrew to be developed, granted devs are interested to make games or tools).