It is kind of old fashioned to back-up the boards manually. It would be a nice feature with automatic back-up, so if anything goes wrong, you could go back to a earlier version in the program. Or is this already a feature?
Open
Cloud backup
+1Hi
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You can create a backup & export, just follow this guide
https://help.miro.com/hc/en-us/articles/360017572774-Board-Backup
https://help.miro.com/hc/en-us/articles/360017572754-Board-Export
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