- Fix version sorting in 1G1R when parent is missing or unwanted
- Treat the first elligible clone as parent in 1G1R when parent is missing
- Greatly improve completion calculation in sort-roms
- Add support for the Atari 7800 header definition
- Embed some no-intro header definitions and use them as fallback
- Add initial support for arcade systems
- Add a new rebuild-roms subcommand for arcade ROM sets
- Add support for RVZ via dolphin-tool