Exclude insecure devices: show a permanent banner in Element "classic" mobile apps to verify the device

[mxandreas]

If a device is not verified, show a permanent undismissable banner.

The designs can be found in here.

The "date" has been set to April 2026, thus the warning should read: "As of April 2026 unverified devices will not be able to send and receive messages."

The Learn more link should point to: https://docs.element.io/latest/element-support/device-verification/how-to-verify-devices

The Verify now should open the initial screen of the verification flow, e.g. it is a shortcut for:

• iOS: User settings > Security > tap on the current session listed in MY SESSIONS.
• Android: Settings > Security & Privacy > Show All Sessions > tap on the session listed in the Current Sessions.

[mxandreas]

@manuroe If you can confirm that EX team could tackle this, then please add it to their "list". @andybalaam - I think the earlier we put it out there, the better, I guess?

[manuroe]

We, the EX team, can manage it. I added it to our board for the next quarter.

[andybalaam]

I think the earlier we put it out there, the better, I guess?

Yes, we are ready for it to be shown now, and the sooner it is shown, the better.

[manuroe]

@bmarty will implement it first on EA.

We agreed we are flexible with the design to reuse the existing components.

[bmarty]

This is implemented on Element Classic Android in element-hq/element-android#9120. Please see there screenshot and video of the feature.

[mxandreas]

Looks good to me!