Let’s say one day your Dynamo crashes but it’s the end of the day and you can’t be bothered to open Dynamo again…
The next morning you’ve forgotten your script had crashed and you open it as normal, and the backup gets overwritten loosing an hour’s work…
Is there any way of salvaging that work?
If you’d not been a total moose and remembered to open the backup in the morning you’d have that hour.
Asking for a friend 
Check the dates of the files in the backup directory as a first step. Unlikely, but there might be a backup of the backup at some point.
Sadly I have never found a backup of a backup…
Erm, I mean my friend has never found one… 
Where does the friend save the graphs? Is it on OneDrive or file server?
If it’s on OneDrive i think it would be possible to go back to older version if right click and ”open online” and then right click in Sharepoint and version history.
Hope it will work.
On a windows machine in a drive.
No backups there.
And obviously the automatic Dynamo backup (which I love) gets overwritten if you open the file from the original location again.
I really, really should start using Github properly but I find it scary.
You would have to have saved and pushed to get it onto the repository though…
Are you suggesting I’m too lazy? 
So basically what I’m getting from this thread is…
Always open the backup as soon as it crashes because there are no extra backups/ rollbacks.
At the moment, yes.
‘The first launch after a crash asking if you want to open the backup’ sounds like a great wishlist item though.