Claude Platform release notes — September 18, 2026
1 month agoOriginal notes
- For cache diagnostics, a response to a request that sends the
cache-diagnosis-2026-04-07beta header now always includes thediagnosticsfield. The field isnullwhen the request did not include thediagnosticsobject. Previously the field was omitted in that case. - The Compliance API local session endpoints now also return transcripts of Claude in Chrome sessions (
product_surfacevalueclaude_in_chrome), in beta for Claude Enterprise organizations, with your existing Compliance Access Key and theread:compliance_user_datascope. See Sessions on users' machines.