Welcome. There is lots of news about Amiga to catch up on. Right now there are 3 competing successors to AmigaOS 3.9: AmigaOS 4.0 (Runs on AmigaOne series computers that are no longer available new), MorphOS (not really AmigaOS but will run some older Amiga code better than OS 4), and AROS (runs on PC hardware instead and isn't backward compatible to Amiga binaries at all).
