The links to all Blender News resources on the blender.org page above is show a 404.
etc.
Not Found
The requested URL was not found on this server.
https://lists.blender.org/pipermail/bf-committers/2021-March/050941.html
https://lists.blender.org/pipermail/bf-committers/2021-March/050946.html
It’s known and being restored slowly.
Use https://web.archive.org if there’s a snapshot.