Your links go to 404 errors.
If updating, might want to make sure an update does not turn off emergency broadcasting.
Dang... worked before I posted. Looks like a FR 404. ... try these:
https://macdailynews.com/2021/04/26/apple-releases-ios-14-5-and-ipados-14-5/
https://macdailynews.com/2021/04/26/apple-releases-macos-big-sur-11-3/