infoannouncementSlack calls it: Announcement
Desktop notifications now pull text from blocks first
- Announced
- APIs
- platform
- Endpoints
message.text- Severity
- info, set by
reef/slack-rule-v1 - Source
- https://docs.slack.dev/changelog/2026/07/13/notification-changes
Slack desktop client notifications now pull text from blocks first, falling back to the top-level text field only if no text can be extracted from blocks. Mobile notifications continue to exclusively use message.text.
The text above is Slack's. reef added the severity, the dates it could read from the text, and the endpoints and scopes named in code.