An upgrade is when we release a significantly changed version of the Scaled Agile Framework. We would provide an upgrade path which would potentially require you to take a new exam to earn the new version of the SAFe certifications and Digital Badge.
Updates happen when we make some changes to the existing version of the framework. For example, we are currently using version 4 of SAFe and SAFe 4.5 and 4.6 have been updates to version 4. Updates do not require you to retest or retake a class as you already have the most up to date certification available, SAFe 4 certification.
Note: Framework updates and upgrades are designed to be backwards compatible.