Scheduled upgrade metadata is validated The value of the notebook-upgrade-schedule metadata key is now validated when
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## Fix
Fixed
**Scheduled upgrade metadata is validated**
The value of the `notebook-upgrade-schedule` metadata key is now validated when you create or update an Agent Platform Workbench instance. The value must be a single-line [unix-cron format](https://man7.org/linux/man-pages/man5/crontab.5.html) schedule. For more information, see [Manage features through metadata](https://cloud.google.com/gemini-enterprise-agent-platform/notebooks/workbench/instances/manage-metadata#keys).