Re: Debian stretch is no longer supported

Re: To PostgreSQL in Debian
> With the end of LTS support for Debian stretch, we are no longer
> supporting stretch on apt.postgresql.org.
> 
> https://wiki.debian.org/LTS/
> 
> stretch-pgdg has been copied to apt-archive.postgresql.org and will be
> removed from apt.postgresql.org at the end of October 2022.

The files have been removed now.

If you still need stretch, the files are on apt-archive now:

deb https://apt-archive.postgresql.org/pub/repos/apt stretch-pgdg main

No new packages will be added to that repository.

Christoph