I don’t even see this. Searching the Release Notes & Firmware page, I don’t find any firmware with that sequence (“0897”) of digits. The last version I see on that page for Video Doorbell v2 is 4.51.2.0578, and I haven’t seen announcements of any Beta firmware versions for Video Doorbell v2 released since then.
The app isn’t even offering me version 4.51.2.0578 yet. The update that’s being offered to me is 4.51.2.0379, and I still don’t know if it’s necessary for me to do a stepwise update to that version in order to see the latest one available, but I’m hesitant to try because I don’t want to be stuck on version 4.51.2.0379 and have broken notifications.