Greetings

Following the official directions:

https://www.devuan.org/os/documentation/install-guides/chimaera/upgrade-to-chimaera

I get :

# apt update
Ign:1 http://deb.devuan.org/merged chimera InRelease
Ign:2 http://deb.devuan.org/merged chimera-security InRelease
Ign:3 http://deb.devuan.org/merged chimera-updates InRelease
Ign:4 http://deb.devuan.org/merged chimera-backports InRelease
Err:5 http://deb.devuan.org/merged chimera Release
404 Not Found [IP: 131.188.12.211 80]
Err:6 http://deb.devuan.org/merged chimera-security Release
404 Not Found [IP: 131.188.12.211 80]
Err:7 http://deb.devuan.org/merged chimera-updates Release
404 Not Found [IP: 131.188.12.211 80]
Err:8 http://deb.devuan.org/merged chimera-backports Release
404 Not Found [IP: 131.188.12.211 80]
Reading package lists... Done
E: The repository 'http://deb.devuan.org/merged chimera Release' does
not have a Release file.
N: Updating from such a repository can't be done securely, and is
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user
configuration details.
E: The repository 'http://deb.devuan.org/merged chimera-security
Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user
configuration details.
E: The repository 'http://deb.devuan.org/merged chimera-updates
Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user
configuration details.
E: The repository 'http://deb.devuan.org/merged chimera-backports
Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is
therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user
configuration details.


Hmmmmmm - - - not only does that response me that I was unsuccessful
in upgrading but 2> it means I really don't know what to do next.

Please - - - what do I do to succeed at apt dist-upgrade? (from
beowulf to chimera)

TIA