Important Update - 4/27/2023 : The original instructions indicated that a cf restage will move apps to cflinuxfs4. It does not, you have to cf push -s STACK_NAME your application.

Important Update - 5/16/2023 : The deprecation dates for cflinuxfs3 have been pushed out from the original date of 5/10/2023 to the dates now seen in the document.