Version Control of UI Extensions
Whenever a UI extension is updated and saved, a new version of it is created. Until it is activated, it is labeled โBeing Preparedโ. So far, if an account designer or administrator wanted to return to a previous version of the UI extension, they could copy the HTML, JavaScript, or CSS, paste it into the correct field in โEditโ mode, and then save it again to create a new version that was the same as a previous version. This has now been made much easier.
Whenever there are multiple versions of a UI extension, the field at the top right of the UI extension which says โActiveโ has a number higher than 1. When selecting a previous version in โViewโ mode, a Restore versionโฆ button now becomes available.

After pressing the button, the UI extension opens in โEditโ mode with that version loaded. It still needs to be saved to become the current prepared version, or saved and activated to become the new active version.