- [hiperdex] add chapter and manga extractors ([#606](https://github.com/mikf/gallery-dl/issues/606))
- [oauth] implement option to write DeviantArt refresh-tokens to cache ([#616](https://github.com/mikf/gallery-dl/issues/616))
- [downloader:http] add more MIME types for `.bmp` and `.rar` files ([#621](https://github.com/mikf/gallery-dl/issues/621), [#628](https://github.com/mikf/gallery-dl/issues/628))