Signal notification delivery issue

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Signal notification delivery issueNotification Sender

Started: 5 Feb, 20:40 UTC

Duration: 16 hours, 31 minutes

Starting from February 5, 20:40 UTC, Healthchecks.io was not delivering Signal notifications. The notification delivery is working now, but we are still digging into the cause of the issue.

Resolved: 6 Feb, 13:11 UTC

Starting from yesterday, Signal server was rejecting messages sent by signal-cli 0.12.7. The fix is to upgrade to signal-cli 0.12.8.

More details: https://github.com/AsamK/signal-cli/issues/1439

Healthchecks.io is running signal-cli 0.12.8 now.