The markdown parsing is broken/disabled for release notes. Sorry about that, I'm chasing the source of a crash that's been bringing this website down for the last couple of days.
[CAHGELOG](https://github.com/studyplus/Studyplus-iOS-SDK/blob/main/CHANGELOG.md#400-release-notes-2021-04-01)
### Refactors
- Add _Nonnull or _Nullable
- Implemented usage of instancetype
- Add error handling for access token