The 0.9 series adds many more additional scripts and script types.
Playlist scripts parse and return the contents of the media playlists (media URLs).
Scan scripts are used to scan an URL for embedded media URLs.
YouTube closed-captions (CCs) and transcriptions (TTSes) are now supported.
This group of scripts allow the applications to request the subtitle data in a more widely supported format, e.g. SubRip.