To upgrade your License Server:
1. Shut down the Apache Tomcat copy that runs your License Server using an appropriate Tomcat shutdown script.
2. Clear Tomcat's work directory.
3. Remove the unpacked version of licenseServer.war from Tomcat's webapps directory (the whole "webapps\licenseServer" directory should be deleted. Deleting only the content of the directory is not enough).
4. Copy a new version of licenseServer.war into Tomcat's webapps directory.
5. Start tomcat. All required database upgrade procedures will be performed automatically.
6. Check License Server console.