# Feature Maturity

Argo CD features may be marked with a certain [status](https://github.com/argoproj/argoproj/blob/main/community/feature-status.md)
to indicate their stability and maturity. These are the statuses of non-stable features in Argo CD:

> [!CAUTION]
> **Using Alpha/Beta features risks**
>
> Alpha and Beta features do not guarantee backward compatibility and are subject to breaking changes in the future releases.
> It is highly suggested for Argo users not to rely on these features in production environments, especially if you do not have
> control over the Argo CD upgrades.
> 
> Furthermore, removal of Alpha features may modify your resources to an unpredictable state after Argo CD is upgraded.
> You should make sure to document which features are in use and review the [release notes](./upgrading/overview.md) before upgrading.

## Overview

| Feature                                   | Introduced | Status |
|-------------------------------------------|------------|--------|
| [AppSet Progressive Syncs][2]             | v2.6.0     | Beta   |
| [Proxy Extensions][3]                     | v2.7.0     | Beta   |
| [Skip Application Reconcile][4]           | v2.7.0     | Alpha  |
| [Cluster Sharding: round-robin][6]        | v2.8.0     | Alpha  |
| [Dynamic Cluster Distribution][7]         | v2.9.0     | Alpha  |
| [Cluster Sharding: consistent-hashing][9] | v2.12.0    | Alpha  |
| [Service Account Impersonation][10]       | v2.13.0    | Beta   |
| [Source Hydrator][11]                     | v2.14.0    | Beta   |
| [ApplicationSet Web UI][12]               | v3.5.0     | Alpha  |

## Unstable Configurations

### Application CRD

| Feature                         | Property                                                                                | Status |
| ------------------------------- | --------------------------------------------------------------------------------------- | ------ |
| [Skip Application Reconcile][4] | `metadata.annotations[argocd.argoproj.io/skip-reconcile]`                               | Alpha  |
| [Source Hydrator][11]           | `spec.sourceHydrator.*`                                                                 | Beta   |

### AppProject CRD

| Feature                             | Property                            | Status |
| ----------------------------------- | ----------------------------------- | ------ |
| [Service Account Impersonation][10] | `spec.destinationServiceAccounts.*` | Beta   |

### ApplicationSet CRD

| Feature                       | Property                     | Status |
| ----------------------------- | ---------------------------- |--------|
| [AppSet Progressive Syncs][2] | `spec.strategy.*`            | Beta   |
| [AppSet Progressive Syncs][2] | `status.applicationStatus.*` | Beta   |

### Configuration

| Feature                                   | Resource                                      | Property / Variable                                         | Status |
| ----------------------------------------- | --------------------------------------------- | ----------------------------------------------------------- | ------ |
| [AppSet Progressive Syncs][2]             | `ConfigMap/argocd-cmd-params-cm`              | `applicationsetcontroller.enable.progressive.syncs`         | Beta   |
| [AppSet Progressive Syncs][2]             | `Deployment/argocd-applicationset-controller` | `ARGOCD_APPLICATIONSET_CONTROLLER_ENABLE_PROGRESSIVE_SYNCS` | Beta   |
| [Proxy Extensions][3]                     | `ConfigMap/argocd-cmd-params-cm`              | `server.enable.proxy.extension`                             | Beta   |
| [Proxy Extensions][3]                     | `Deployment/argocd-server`                    | `ARGOCD_SERVER_ENABLE_PROXY_EXTENSION`                      | Beta   |
| [Proxy Extensions][3]                     | `ConfigMap/argocd-cm`                         | `extension.config`                                          | Beta   |
| [Dynamic Cluster Distribution][7]         | `Deployment/argocd-application-controller`    | `ARGOCD_ENABLE_DYNAMIC_CLUSTER_DISTRIBUTION`                | Alpha  |
| [Dynamic Cluster Distribution][7]         | `Deployment/argocd-application-controller`    | `ARGOCD_CONTROLLER_HEARTBEAT_TIME`                          | Alpha  |
| [Cluster Sharding: round-robin][6]        | `ConfigMap/argocd-cmd-params-cm`              | `controller.sharding.algorithm: round-robin`                | Alpha  |
| [Cluster Sharding: round-robin][6]        | `StatefulSet/argocd-application-controller`   | `ARGOCD_CONTROLLER_SHARDING_ALGORITHM=round-robin`          | Alpha  |
| [Cluster Sharding: consistent-hashing][9] | `ConfigMap/argocd-cmd-params-cm`              | `controller.sharding.algorithm: consistent-hashing`         | Alpha  |
| [Cluster Sharding: consistent-hashing][9] | `StatefulSet/argocd-application-controller`   | `ARGOCD_CONTROLLER_SHARDING_ALGORITHM=consistent-hashing`   | Alpha  |
| [Service Account Impersonation][10]       | `ConfigMap/argocd-cm`                         | `application.sync.impersonation.enabled`                    | Beta   |
| [Source Hydrator][11]                     | `ConfigMap/argocd-cmd-params-cm`              | `hydrator.enabled`                                          | Beta   |
| [Source Hydrator][11]                     | `Deployment/argocd-application-controller`    | `ARGOCD_HYDRATOR_ENABLED`                                   | Beta   |
| [Source Hydrator][11]                     | `Deployment/argocd-server`                    | `ARGOCD_HYDRATOR_ENABLED`                                   | Beta   |

[2]: applicationset/Progressive-Syncs.md
[3]: ../developer-guide/extensions/proxy-extensions.md
[4]: ../user-guide/skip_reconcile.md
[6]: ./high_availability.md#argocd-application-controller
[7]: dynamic-cluster-distribution.md
[8]: ../user-guide/diff-strategies.md#server-side-diff
[9]: ./high_availability.md#argocd-application-controller
[10]: app-sync-using-impersonation.md
[11]: ../user-guide/source-hydrator.md
[12]: ../user-guide/application-set-ui.md
