That means that if you opened a ROM from ux0:data/mGBA/GBA ROMs. The following is what’s been updated/added in mGBA 0.6.0:
What’s been updated/changed in mGBA 0.6.0? The emulator has a decent GUI, zip file support, frameskip support, a framerate counter and various other features for you to enjoy all of which make it a worthwhile emulator to have on your PSVita. The folks over at mGBA are also developing medusa which is a Nintendo DS emulator which is currently in alpha 2 stage and is available for Windows and Macintosh systems. There are various systems that support mGBA and these are: MGBA is an emulator that’s available on multiple systems which emulates the GBA and the GB and GBC since version 0.5.