Hi,
Just a quick note that it appears the F-Droid release of Riot.IM may be critically behind. The App Store version is at 0.9.x while the F-Droid release is at Version 0.8.28a (F-3bc5baad3). My instance of Is starting to complain that I am missing critical security patches and should be at a minimum of 0.8.88.
If you are using #riot-android you should update to version 0.8.28a as this is a critical security update.
If you are a user of the matrix.org homeserver and have received an alert message stating that you should update to a version 0.8.99 from google play you can safely ignore that. This message was only targeted at google play users but accidentally sent to some f-droid users as well.