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
|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
|Pluggable components concept
|Multi-App Run for Kubernetes
|Configure multiple Dapr applications from a single configuration file and run from a single command on Kubernetes
dapr run -k -f
|Author workflows as code to automate and orchestrate tasks within your application, like messaging, state management, and failure handling
|Encrypt or decrypt data without having to manage secrets keys
|Service invocation for non-Dapr endpoints
|Allow the invocation of non-Dapr endpoints by Dapr using the Service invocation API. Read “How-To: Invoke Non-Dapr Endpoints using HTTP” for more information.
|Service invocation API
|Actor State TTL
|Allow actors to save records to state stores with Time To Live (TTL) set to automatically clean up old data. In its current implementation, actor state with TTL may not be reflected correctly by clients, read Actor State Transactions for more information.
|Actor State Transactions
|Allows state operations for inserts and updates to be published to a configured pub/sub topic using a single transaction across the state store and the pub/sub
|Transactional Outbox Feature
|Component Hot Reloading
|Allows for Dapr-loaded components to be “hot reloaded”. A component spec is reloaded when it is created/updated/deleted in Kubernetes or on file when running in self-hosted mode. Ignores changes to actor state stores and workflow backends.
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