The Final release criteria say this (and have done for years):

"The final branded release notes must be present on release-blocking images and the appropriately versioned generic release notes must be available in the release repository."

However, this frequently gets missed until the very end of the release cycle. We are two days out from Fedora 25 Go/No-Go and there has been no fedora-release-notes package build for Fedora 25 in the entire cycle; the package still contains the Fedora 24 release notes.

I am currently running around like a headless chicken trying to get this fixed, as I wind up doing every release, but this is stupid. There should be a process in place which reliably ensures that for every release, the release notes are built in good time - say just before the Final freeze, or just after it with a freeze exception request submitted. There is absolutely no need for this to be an end-of-process emergency every damn release. The schedule is not a secret, everyone should be well aware of when stuff needs to be ready by.