Don't forget to update our synapse instance. Version 1.2.1 is a critical security update which can lead to downgrade attacks on rooms, spoofed read recipients, people being pushed out of rooms, and more.

https://github.com/matrix-org/synapse/releases/tag/v1.2.1

In order to keep rooms and your servers safe, please upgrade.

#Matrix #synapse #security #infosec