Service pack updates will not overwrite paid licensing. Your paid licensing will continue to work and you will not be required to re-enter your purchased registration codes.
Service pack updates do not include any changes that might "break" previously developed and/or deployed code.
Verify Latest Development Components
To verify you are using the latest version of an Accusoft Development Component or Components, please refer to the currently released product build numbers.
If you require further assistance or have questions or comments, please see the topic on Getting Support for more detailed information.