For cache diagnostics, a response to a request that sends the cache-diagnosis-2026-04-07 beta header now
Tech · Releases · Fri, September 18, 2026
UnverifiedSource
For cache diagnostics, a response to a request that sends the cache-diagnosis-2026-04-07 beta header now always includes the diagnostics field. The field is null when the request did not include the diagnostics object. Previously the field
Every year
Also on Sep 18, 2026
| Date | Event | When |
|---|---|---|
| Fri, Sep 18, 2026 | iPhone 18 Pro release | 7 days ago |
| Fri, Sep 18, 2026 | 2026 Russian legislative election | 7 days ago |
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Source, method and history
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- anthropic
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- From the Releases API (releases.fru.dev), which reads each vendor's changelog.
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- anthropic
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- one-off
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- Changes
- 2026-09-25: added to 2026-09-18