Loadiine GX2 is the latest afaik.
GX2 does all that lovely wiiflow coverart menu stuff and loads a bit quicker.
It still takes a while to load from SD tho so you want a UHS 3 SD card too for the best loading times.
[video=youtube_share;_05GYcoS_1U]https://youtu.be/_05GYcoS_1U[/video]