- Fix a bug that `GET` requests without data will report an error in API
- Fix a bug that `aggregate` requests will get an error when the inner function raises an error
- Fix a bug that the charts of a course cannot be the same because of the incorrect primary keys
- Fix a bug that global ranking scores cannot be calculated if there are no chart in the database #61
- The first try to fix#60 (I don't think it can be done so easily.)
- Add Course Mode
- Add support for downloading additional files
- Add support for `skill_fatalis` (Hikari booms your world.)
- Delete my hair X<
> WHERE IS MY TAIRITSU ?!
> Some other things are not supported now, such as... the feature which is one line above.
- Code refactoring
- Fix a bug that the other player will not become the host of the room at once, when the player disconnect in link play.
> Maybe add many unknown bugs. XD
> The song database `arcsong.db` will not used in the future. You can use a tool in `tool` folder to import old data.
- Code refactoring
- Update the song database
- Fix a bug of the friend system which arose in the last version
- Fix a bug of duplicate calculating finishing states when players finish playing the chart in Link Play.
