Matrix Server not supported - Update to Matrix v1.1

[SebiWolze]

Steps to reproduce

1. Where are you starting? What can you see?
   After the Element Update to Version 1.11.40.0 we are getting the following Error:
   
   Thats german for "Server not supported, Upgrade to Matrix v1.1
   Element shows everything as offline.

_matrix/client/versions
{"versions":["r0.0.1","r0.1.0","r0.2.0","r0.3.0","r0.4.0","r0.5.0","r0.6.0"],"unstable_features":{"org.matrix.label_based_filtering":true,"org.matrix.e2e_cross_signing":true,"org.matrix.msc2432":true,"uk.half-shot.msc2666":true,"io.element.e2ee_forced.public":false,"io.element.e2ee_forced.private":false,"io.element.e2ee_forced.trusted_private":false,"org.matrix.msc3026.busy_presence":false}}

_matrix/federation/v1/version
{"server":{"name":"Synapse","version":"1.31.0"}}

Outcome

What did you expect?

Working connection to Matrix Synapase Server

What happened instead?

Error Message, "Version not supported, please upgrade to V1.1

Operating system

Windows 10

Application version

1.11.40

How did you install the app?

AutoUpdate of the freshly installed Client from Element.io

Homeserver

{"server":{"name":"Synapse","version":"1.31.0"}}

Will you send logs?

Yes

[t3chguy]

Indeed. Synapse 1.31 from over 2 years ago does not support Matrix v1.1
Please update or find a different client

https://matrix.org/blog/2021/04/06/synapse-1-31-0-released/

[GreenReaper]

For others using Synapse, the necessary version appears to be 1.54+ from August 2022 which was the first to advertise API v1.1 (and v1.2). Obviously, a more recent version would be advisable, and may be available in an updates/backports package repo. But you may face trouble upgrading to 1.79+ if you haven't run with 1.60+ first. Debian's own sid (unstable) and bullseye-backports repos have 1.78.