morning all,

just upgraded after a couple of days to see that testing and ceres
dists, were removed from mirrors. eg:

Err:9 https://mirror_url/devuan/merged ceres Release
404 Not Found [IP: xxx.xxx.xxx.xxx 443]
Reading package lists... Done
E: The repository 'https://mirror_url/devuan/merged ceres 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.

https://pkgmaster.devuan.org/merged/dists/ & mirrors only seem to contain :

ascii/                                             26-May-2019 19:27

ascii-backports/                                   26-May-2019 19:27

ascii-proposed-updates/                            26-May-2019 19:27

ascii-security/                                    26-May-2019 19:27

ascii-updates/                                     26-May-2019 19:27

beowulf/                                           26-May-2019 19:27

beowulf-proposed-updates/                          26-May-2019 19:27

beowulf-security/                                  26-May-2019 19:27

beowulf-updates/                                   26-May-2019 19:27

jessie/                                            26-May-2019 19:27

unstable/                                          26-May-2019 19:27

oddly, https://pkgmaster.devuan.org/devuan/dists/ has all dists listed.

switching repos to use beowulf and unstable, and apt upgrade works.
maybe, something changed recently?

d.