Power App error: the app you trying to open was saved with newer version of powerapps and cannot be opened..

1. Create a new app with new  version, after publish to SharePoint, customized it again take the URL from, while editing like below:

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https://us.create.powerapps.com/studio/?action=sp-edit-formdata&app-id=e77ea2fa-0bdd-477b-9b08-815a772c20ad&correlation-id=50e36e54-80f3-43fb-a680-2c7239d0926e&redirect-reason=WebAuth.NewInstanceRedirect&environment-name=Default-709c2643-b1a9-4415-ad0f-521cfa6ba3f5&environment-update-cadence=Frequent

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2. Now open your App from from form settings option:

Modify form in PowerApps:

Copy the URL while editing,  and the version like blow in URL highlighted

https://us.create.powerapps.com/v3.21054.31.188965150/studio/?action=sp-edit-formdata&app-id=2609a1de-5a2b-4087-b256-0cafc9b1e6d0&correlation-id=72ff7fe3-f7df-46ff-8825-f3766ca22a62&redirect-reason=WebAuth.NewInstanceRedirect&environment-name=Default-709c2643-b1a9-4415-ad0f-521cfa6ba3f5&environment-update-cadence=Frequent

and now open you app. it will work.