Today trhe Buster version has gone from 10.2 to 10.3
If you want to run "apug" to update system and you have errors refering to that you need to first run:
"sudo apt-get --allow-releaseinfo-change update"
after which everything will be fine.
3 Likes
Thanks for the tip
I found a waste of time to put this manually everytime buster includes a new release, in fact a totally useless step without a coherent reason to do so, and also, its an annoyance for the users and can lead to broken upgrades by the automated system 
So I added a conf file for the next build which should not ask anymore for that, this conf has not been tested and apt is always very delicate at its configurations files, so could be good if anybody with a system that includes Debian Buster 10.2 or less can test if this works
To know the version:
cat /etc/debian_version
The conf file is basically this code:
❯❯❯ cat /etc/apt/apt.conf.d/20allow_update_releaseinfo
Acquire::AllowReleaseInfoChange "true";
❯❯❯
So, if anybody has 10.2 , can add this conf file and see if "apug" upgrades without problems without requiring the extra command suggested by @triantares ?
Confirmed!
Works on a 10.1 32 bit Elive 
2 Likes