dialog box in App Store
I migrated my home account from a 2010 Mac mini running El Capitan to another 2012 Mac mini running Catalina. I wanted to reinstall the iWorks apps, Pages, Numbers and Keynotes... I received the following dialog box message:
We could not complete your purchase.
Pages can’t be installed on “Planck” because macOS version 11 or later is required.
I'd upgraded the 2010 Mac mini from Snow Leopard to El Capitan...
Mac mini, macOS 10.15