- Provide `filename` metadata for all `deviantart` files ([#392](https://github.com/mikf/gallery-dl/issues/392), [#400](https://github.com/mikf/gallery-dl/issues/400))
- Implement a `ytdl.outtmpl` option to let youtube-dl handle filenames by itself ([#395](https://github.com/mikf/gallery-dl/issues/395))
- Support `seiga` mobile URLs ([#401](https://github.com/mikf/gallery-dl/issues/401))
### Fixes
- Extract more than the first 32 posts from `piczel` galleries ([#396](https://github.com/mikf/gallery-dl/issues/396))
- Fix filenames of archives created with `--zip` ([#397](https://github.com/mikf/gallery-dl/issues/397))
- Skip unavailable images and videos on `flickr` ([#398](https://github.com/mikf/gallery-dl/issues/398))
- Fix filesystem paths on Windows with Python 3.6 and lower ([#402](https://github.com/mikf/gallery-dl/issues/402))