Is it just me or do #Debian really not make it all that easy to find and download ISOs for older but still supported versions? You seem to end up in a maze of twisty web pages none of which actually point to download links (or lead to the current “stable” instead) and I only found what I needed via a web search. 🙃

(I do need oldstable because current stable has “too new” versions of some supporting packages for the current version of the specific software that I need to install.)