- Better error reporting should allow for better debugging
- Proper support for multiple charmaps, for those who use different encodings
- A new color profile for rgbgfx, closer to the GBC
- A lot of new bug fixes
- Hopefully nothing was broken, but the bug fixes might
I would recommend updating if you're using charmaps, as a feature has been deprecated and warning added for it; it's not planned to be kept in the next release.
By the way, the plan for the next release is to be 1.0.0, with a lot of changes, including potentially breaking ones. Changelog seems already promising!
If anything major is reported before it, a "0.3.10" will be released, so please report any bugs you encounter.
Issues and feature requests welcome at https://github.com/rednex/rgbds/issues