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Merge pull request #1678 from halspang/preview_features 

Add a list of all current preview features
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Ori Zohar 2021-07-23 14:27:09 -07:00 committed by GitHub
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daprdocs/content/en/operations/configuration/preview-features.md
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@ -7,20 +7,19 @@ description: "How to specify and enable preview features"
--- ---
## Overview ## Overview
Some features in Dapr are considered experimental when they are first released. These features require explicit opt-in in order to be used. The opt-in is specified in Dapr's configuration. Preview features in Dapr are considered experimental when they are first released. These preview features require explicit opt-in in order to be used. The opt-in is specified in Dapr's configuration.
Currently, preview features are enabled on a per application basis when running on Kubernetes. A global scope may be introduced in the future should there be a use case for it. Preview features are enabled on a per application basis by setting configuration when running an application instance.
### Current preview features ### Preview features
Below is a list of existing preview features: The current list of preview features can be found [here]({{<ref support-preview-features>}}).
- [Actor Reentrancy]({{<ref actor-reentrancy.md>}})
## Configuration properties ## Configuration properties
The `features` section under the `Configuration` spec contains the following properties: The `features` section under the `Configuration` spec contains the following properties:
| Property | Type | Description | | Property | Type | Description |
|----------------|--------|-------------| |----------------|--------|-------------|
|name|string|The name of the preview feature that will be enabled/disabled |name|string|The name of the preview feature that is enabled/disabled
|enabled|bool|Boolean specifying if the feature is enabled or disabled |enabled|bool|Boolean specifying if the feature is enabled or disabled
## Enabling a preview feature ## Enabling a preview feature

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---
type: docs
title: "Preview features"
linkTitle: "Preview features"
weight: 4000
description: "List of current preview features"
---
Preview features in Dapr are considered experimental when they are first released. These preview features require explicit opt-in in order to be used. The opt-in is specified in Dapr's configuration. See [How-To: Enable preview features]({{<ref preview-features>}}) for information more information.
## Current preview features
| Description | Setting | Documentation |
|-------------|---------|---------------|
| Preview feature that enables Actors to be called multiple times in the same call chain allowing call backs between actors. | Actor.Reentrancy | [Actor reentrancy]({{<ref actor-reentrancy>}}) |
| Preview feature that allows Actor reminders to be partitioned across multiple keys in the underlying statestore in order to improve scale and performance. | Actor.TypeMetadata | [How-To: Partition Actor Reminders]({{< ref "howto-actors.md#partitioning-reminders" >}}) |
| Preview feature that enables you to call endpoints using service invocation on gRPC services through Dapr via gRPC proxying, without requiring the use of Dapr SDKs. | proxy.grpc | [How-To: Invoke services using gRPC]({{<ref howto-invoke-services-grpc>}}) |