MH3 works for me too, but that's not the question.
For people that have Usb Loader GX rev 874, cIOS249rev19[base 57] and an HD with WBFS partition, there's any reason to upgrade to new versions? Any new features or modifications for us?
cIOSrev19 have a safe install, that only install the modified IOS on unused blocks (like 249 and 250).
The original IOS 37 was not modified, so you don't need to revert to the previous NAND backup.
btw i feel this a good time to remind you guys that sea of thieves was made by rare, who also made DKC1-3 and DK64, alongside banjo kazooie and conker's bad fur day