we have used a hotfix process over the years that provides individualized fixes for customers. With the upcoming release of Pega Infinity 8.1, we are launching a new industry-standard “patch release” process that will allow us to deliver and maintain higher quality releases.
The patch release approach will bundle all bug and security fixes over a given period into a cumulative patch release that will be available to all customers. Patches will undergo rigorous testing to ensure we manage dependencies between fixes and improve quality with each patch release.
This new process will provide value to your business through improved overall quality and better dependency management. Going forward, fixes prepared for any given customer will be made available to every customer, ensuring you have access to the highest quality software that includes fixes to issues reported by other customers. This improved approach also eliminates any issues with hotfix compatibly that many customers have experienced over the years.
Please go through below link to have better understanding of the new process.