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On May 18, 2018, we released a new version of Apigee Edge for Private Cloud.

> [!NOTE]
> For more information, see the following resources:
>
> - *[Edge for Private Cloud 4.18.01 documentation](https://docs.apigee.com/private-cloud/v4.18.01)*
> - *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 Yum repos:

      ```
      sudo yum clean all
      ```
   2. Download the latest Edge 4.18.01 `bootstrap_4.18.01.sh` file to `/tmp/bootstrap_4.18.01.sh`:

      ```
      curl https://software.apigee.com/bootstrap_4.18.01.sh -o /tmp/bootstrap_4.18.01.sh
      ```
   3. Install the Edge 4.18.01 `apigee-service` utility and dependencies:

      ```
      sudo bash /tmp/bootstrap_4.18.01.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. Update all Message Processor nodes:

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

   Where <var translate="no">configFile</var> specifies the config file you used to install Edge.
3. Update all Edge UI nodes:

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

   Where <var translate="no">configFile</var> specifies the config file you used to install Edge.
4. Update all Qpid nodes:

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

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

## Bugs fixed

The following bugs are fixed in this release.

> [!NOTE]
> **Note:** The build number in the table specifies the earliest version of the component that contains the fix. Use that build number to determine if you already have the fix installed, or if you need to perform an update. The `apigee-service` utility displays the build number of the currently installed component:
>
> ```
> /opt/apigee/apigee-service/bin/apigee-service component version
> ```
>
> Where <var translate="no">component</var> is the name of the component without the build number extension.
> For example:
>
> ```
> /opt/apigee/apigee-service/bin/apigee-service apigee-setup version
> ```
>
> Or get the build number of all components:
>
> ```
> /opt/apigee/apigee-service/bin/apigee-all version
> ```

| Issue ID | Description | Build number |
|---|---|---|
| 79221633 | **Improve NIOManager thread pool management** | `edge-gateway-4.18.01-0.0.1607` |
| 74393594 | **Fix drilldown feature in custom reports** | `edge-ui-4.18.01-0.0.20043` |
| 72173268 | **Update qpid-cpp-server package to resolve `apigee-qpidd` upgrade issue** | `apigee-qpidd-4.18.01-0.0.855` |