The new ‘Release Preview’ app allows you to see the upcoming content releases in a calendar format, preview web pages before a scheduled release, compare with existing content, and view release details that are added to a release with their specific titles, content types, and versions within your environment. It helps content editors get better control and visibility over future releases. This Full Page UI Location app, once installed, appears on the left navigation panel of your stack.
For more information, refer to the Release Preview App Installation Guide.