Blacklisting lets you stop issued licenses from working in future versions of your application, normally to allow users to move licenses from one host to another. Blacklisting applies to a specific feature in the license file, based on the unique KEY value of the feature.
You can use blacklisting for local, network and borrow licenses. Blacklisting of a network license must be done on a license server machine.
When a blacklisted license is checked out and is then checked back in, the feature will thereafter be unavailable for checkout. For local licenses, the checkout attempt will result in the message "Feature is blacklisted." For blacklisted network licenses, checkout attempts will be treated as if the feature does not exist, resulting in the message "Feature not found."
When replacing a blacklisted license file with a newly generated license file (re-hosting), the feature will be available for checkout again.
To blacklist and re-host a license:
...