You're viewing **Apigee Edge** documentation.  
[Go to the
**Apigee X** documentation](http://cloud.google.com/apigee/docs). info


> [!NOTE]
> **Note:** Apigee Extensions are available in the Edge UI to Google Cloud Apigee customers with an Enterprise [support](https://cloud.google.com/apigee/pricing) plan.

> [!NOTE]
> **Note:** Extensions marked as deprecated will no longer be available for selection by users. However, the currently deployed version(s) will remain unaffected.

<br />

## Version 2.0.2

This version upgrades internal dependencies. There are no user-facing changes.

## Version 2.0.1 (Deprecated)

This version upgrades internal dependencies. There are no user-facing changes.

## Version 2.0.0 (Deprecated)

This version upgrades internal dependencies. There are no user-facing changes.

## Version 1.5.3 (Deprecated)

This version upgrades internal dependencies. There are no user-facing changes.

## Version 1.5.2 (Deprecated)

This version upgrades internal dependencies. There are no user-facing changes.

## Version 1.5.1 (Deprecated)

This version fixes a bug in exception handling flow of Extensions. There are no
user-facing changes.

## Version 1.3.0 (Deprecated)

Adds support for custom attributes in message input.

## Version 1.2.1 (Deprecated)

Adds support for specifying JSON as message input. Previously, only strings were
supported.

## Version 1.2.0 (Deprecated)

Extension released.