1. Back up custom tasks: If you have custom tasks that were built by modifying ThingWorx Navigate out-of-the-box extensions, make backups, so you can redeploy them after the upgrade. This prevents overwriting of these custom tasks during the upgrade process. For more information, see ThingWorx Extension Development Guide.

2. Stop the Integration Runtime of your current version of ThingWorx Navigate.

3. On your Windchill version, install the Enablement patch compatible with the ThingWorx Navigate maintenance release version you want to upgrade to. For more information, see “Install PTC Windchill Patches” in section 2. Import the PTC Windchill Extension.

4. Update ThingWorx: Follow the upgrade instructions in the section “Maintenance Release/Service Pack Upgrade Process” in the Upgrading to ThingWorx 8.1 guide.

5. Define allowable file download types in the <installation directory>\ThingworxPlatform\platform-settings.json file. Refer to Set File Download Types for details.

6. From the PTC Software Download page, download the following extensions. Refer to Downloading ThingWorx Navigate and the required components for detailed download instructions.

7. In ThingWorx Composer, import these extensions. See the note below describing files not to import. You can skip importing extensions you already installed and ignore warning messages that may appear. The following occurs after installing these extensions:

8. Clear Tomcat cache and restart Apache Tomcat for ThingWorx Navigate.

9. Start Integration runtime. Check the Platform Support Matrix for ThingWorx Navigate for the version of Integration Runtime to use.

10. Redeploy your custom tasks: If you have custom tasks built by modifying ThingWorx Navigate out-of-the-box extensions, reimport those custom tasks you backed up earlier.

11. This step applies only to systems that meet both these conditions: