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On March 13, 2020, we released a new version of Apigee Edge for Private Cloud.

> [!NOTE]
> For more information, see the following resources:
>
> - *[Edge for Private Cloud 4.19.06
>   documentation](https://docs.apigee.com/private-cloud/v4.19.06)*
> - *Questions or issues?* Contact [Apigee Edge Support](https://docs.apigee.com/api-platform/troubleshoot/support)
> - *Release notifications* : See [Get Apigee Edge release notifications](https://docs.apigee.com/release/get-release-notifications)

## Update procedure

To update your installation, perform the following procedure on the Edge nodes:

1. On all Edge nodes:

   1. Clean the Yum repos:

      ```
      sudo yum clean all
      ```
   2. Download the latest Edge 4.19.06 `bootstrap_4.19.06.sh` file to `/tmp/bootstrap_4.19.06.sh`:

      ```
      curl https://software.apigee.com/bootstrap_4.19.06.sh -o /tmp/bootstrap_4.19.06.sh
      ```
   3. Install the Edge 4.19.06 `apigee-service` utility and dependencies:

      ```
      sudo bash /tmp/bootstrap_4.19.06.sh apigeeuser=uName apigeepassword=pWord
      ```

      Where <var translate="no">uName:pWord</var> are the username and password you received from Apigee.
      If you omit <var translate="no">pWord</var>, you will be prompted to enter it.
   4. Update the `apigee-setup` utility:

      ```
      sudo /opt/apigee/apigee-service/bin/apigee-service apigee-setup update
      ```
   5. Use the `source` command to execute the `apigee-service.sh` script:

      ```
      source /etc/profile.d/apigee-service.sh
      ```
2. Run the `update.sh` script on all Message Processor, Router, Management Server, Qpid Server, and Postgres Server nodes. On each node, execute the following command:

   ```
   /opt/apigee/apigee-setup/bin/update.sh -c edge -f configFile
   ```

   Where <var translate="no">configFile</var> specifies the configuration file that you used to install
   Edge.

## Supported software

No changes.

## Deprecations and retirements

No changes.

## Bugs fixed

The following table lists the bugs fixed in this release:

| Issue ID | Description |
|---|---|
| 150901070 | **Caching events were not being processed correctly** Updated the caching services on Message Processors to handle policy caching differently when performing under high TPS. |