Signal notification delivery broken

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Signal notification delivery brokenNotification Sender

Empezado: 1 Abr, 13:30 UTC

Duración: 17 horas, 46 minutos

We are currently investigating an issue with the delivery of Signal notifications.

Resuelto: 2 Abr, 07:16 UTC

The problem has been fixed, Signal notifications are being delivered again.

What happened:

On April 1, 13:30 UTC, our signal account became unregistered. This was caused by a new Signal protocol feature – SPQR (Sparse Post-Quantum Ratchet) – becoming mandatory and our Signal client software not supporting it.

The fix:

Updated to the latest signal-cli version (0.14.1), registered a new account with the same old number, and re-added the linked devices.

For more background information, here is an issue on the signal-cli issue tracker discussing the account de-registrations on April 1.