Import animated images; Z scale; Usability improvements & more.
You should always save a backup of your project before moving to a new version. You should still be able to roll back your project though using this tuorial: construct.net/en/tutorials/open-project-saved-newer-2203 (remember to save a backup first). Or alternatively wait until the next update is rolled out if you are unable to use this one for whatever reason.
Regardless, you can opt out of notifications for Beta releases in the settings. This means you will only be prompted to update when a new stable release is out.
We've all done it once.