Preview features

Preview features in Dapr are considered experimental when they are first released.

Runtime preview features require explicit opt-in in order to be used. The runtime opt-in is specified in a preview setting feature in Dapr’s application configuration. See How-To: Enable preview features for more information.

For CLI there is no explicit opt-in, just the version that this was first made available.

Current preview features

Feature	Description	Setting	Documentation	Version introduced
--image-registry flag in Dapr CLI	In self hosted mode you can set this flag to specify any private registry to pull the container images required to install Dapr	N/A	CLI init command reference	v1.7
Resiliency	Allows configuring of fine-grained policies for retries, timeouts and circuitbreaking.	Resiliency	Configure Resiliency Policies	v1.7
App Middleware	Allow middleware components to be executed when making service-to-service calls	N/A	App Middleware	v1.9
App health checks	Allows configuring app health checks	AppHealthCheck	App health checks	v1.9
Pluggable components	Allows creating self-hosted gRPC-based components written in any language that supports gRPC. The following component APIs are supported: State stores, Pub/sub, Bindings	N/A	Pluggable components concept	v1.9