In Synaptic I changed the source deb.netrunner.com/dci/packages/netrunner from netrunner2001 to 2101 but had to delete calamares ds9-artwork ds9-common.
Now no error message on reloading updates but not sure if I am missing anything!
However I am now getting an error message when I try to update one package:
E: /var/cache/apt/archives/artwork-lnf-theme-netrunner-indigo_1.0+p20201123+git20210111.0301_all.deb: trying to overwrite ‘/usr/share/aurorae/themes/Indigo/.directory’, which is also in package aurorae-theme-indigo 1.0+p20191205+git20200216.2204
Any help appreciated (Note: this is an upgraded installation form NR2001 to NR2101)