matrix-sdk 0.9.0

What's Changed

Bug Fixes

• Use the inviter's server name and the server name from the room alias as
  fallback values for the via parameter when requesting the room summary from
  the homeserver. This ensures requests succeed even when the room being
  previewed is hosted on a federated server.
  (#4357)

• Do not use the encrypted original file's content type as the encrypted
  thumbnail's content type.
  (#ecf4434)

Features

• Enable persistent storage for the EventCache. This allows events received
  through the /sync endpoint or backpagination to be stored persistently,
  enabling client applications to restore a room's view, including events,
  without requiring server communication.
  (#4347)

• [BREAKING] Make all fields of Thumbnail required
  (#4324)

• Backups::exists_on_server, which always fetches up-to-date information from the
  server about whether a key storage backup exists, was renamed to
  fetch_exists_on_the_server, and a new implementation of exists_on_server
  which caches the most recent answer is now provided.