1.7.0-beta.2 Fixed: White block at bottom of conversation panel in iOS theme (#2144 and #2153) Fixed: Would attempt to rotate signed prekey every five seconds, forever, after app discovers it is unlinked (https://github.com/signalapp/Signal-Desktop/commit/1c6d91b59c2837ecd6ec3194fce508e7b85a6232) Dev: - Introduce IndexedDB index on `messages` store tracking `schemaVersion` (#2128) - Preparation for encrypted backups (https://github.com/signalapp/Signal-Desktop/commit/cea42bde7d3d36ae4794c7926bd96ce979f10082) - Updates to structure of exported data - messages.zip, flat list of attachments (https://github.com/signalapp/Signal-Desktop/commit/6d8f4b7b6e19db365eb395dbb33b1cf6f6154a8a)