azure-functions-host
https://github.com/azure/azure-functions-host
C#
The host/runtime that powers Azure Functions
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- Issues
- Host reports 403 AuthorizationPermissionMismatch on Blobs with correct RBAC, indexes no functions, and reports nothing to App Insights
- Improve extension system key creation logic
- Expose `PrimaryHostCoordinator` lease timeout and renewal interval as optional host configuration
- In the Azure Functions Flex Consumption plan, how can we get the current/instant instance count for a Function App?
- Host-emitted Microsoft.AspNetCore server spans intermittently missing faas.* attributes under concurrent load (isolated worker, OpenTelemetry mode)
- perf(health): use cheaper storage connectivity API
- feat(health): scope storage check to script host
- Increase in normal-shutdown gRPC SocketException telemetry associated with host 4.1053 rollout on Y1 Consumption
- Stale startup context cache can cause extension system keys to be regenerated and overwritten
- Disallow 32-bin Windows Node App for Node 24
- Docs
- C# not yet supported