The update checker now emails the first admin user when a new version
is found on the configured channel. Notifications are deduplicated —
only sent once per new version, not on every cron tick.
- Added NotifyFunc callback in updatechecker module
- Wired to mailer in cron task registration
- Created mail_update.go with plain-text email including version,
channel, release URL, and docker pull command
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Jonathan Miller
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