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```.pulumi/history/dev/dev-1626238159454148000.checkpoint.json```

Yes, you should be able to. However, I _think_ you might need to adjust its format to match the structure that the `pulumi stack import` command expects. If you get an import error, you’d have to update its structure to match <https://github.com/pulumi/pulumi/blob/042e0061d4e32824c22c18b72e764a482ecfa3ac/sdk/go/common/apitype/core.go#L160> and the `Deployment` property’s struct is <https://github.com/pulumi/pulumi/blob/042e0061d4e32824c22c18b72e764a482ecfa3ac/sdk/go/common/apitype/core.go#L108>.

I am also curious if you are able to reproduce the issue that put you in this situation? If you are, it would be awesome if you could open an issue for it.

Screen Shot 2021-07-15 at 10.57.18 AM.png

Thanks for the response.  I also see a .bak file that is created.  Is one generated after every update to the stack?  I am guessing I could have restored from this as well?

If the failure case happens again I will be sure to post here.

You could check the `.bak` file and see if you can use that as the previous version to revert to as well.