The External notifications page now marks deprecated notifiers with a Deprecated label. Its tooltip says what to set up instead. The label appears on:
- Slack notifiers set up before the current Slack app. Select Migrate on the notifier's row to move it to the new Slack app.
- PagerDuty notifiers. Set up a PagerDuty V2 API notifier instead.
- MS Teams notifiers. Set up an MS Teams (Workflows) notifier instead.
The deprecated PagerDuty and MS Teams notifiers can stop working at any time, so replace them soon. The Add new notifier list no longer offers them, so you can't set up a new one by mistake.
Read the Slack migration docs for what changes when you migrate a Slack notifier.
Notifier URLs must now be public. AppSignal only sends notifications to addresses on the public internet. It rejects webhook and other notifier URLs that point to localhost, a private network range, or another internal address. If an existing notifier points to one, AppSignal stops sending to it, and its log shows "Request blocked: URL does not resolve to a public address". Point the notifier at a public URL to start receiving notifications again.
More App updates
All App updates →- Oct 28, 2026Jump from a trace to its host metrics and deploy
- Oct 26, 2026Resize the trace timeline and open traces from browser errors
- Oct 26, 2026Link GitHub issues to incidents
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