Anthropic has officially announced the discontinuation of the Legacy Workbench at platform.claude.com/workbench. The shutdown date is August 17, 2026.
Users still working with the old version need to secure their data in time. However, there's a catch: saved prompts, variables, and evals are not supported in the updated Workbench (platform.claude.com/playground). Anthropic recommends exporting all important data via a banner or Organizational Settings before the legacy version goes offline.
What you need to do
- Shutdown date: August 17, 2026
- Not supported: Saved prompts, variables, and evals are not supported in the new version
- Export available: Data can be downloaded via banner or Organizational Settings
- New Workbench: Users should switch to the updated version
For German enterprises using Claude's Workbench for prompt development or testing, this represents concrete action items: anyone currently storing prompts or evaluations in the legacy version should document these and potentially migrate them to another system before the deadline.
Sources
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