[Koha] Getting Koha 19.11 web installer when installing Koha 20.11.19

[Michael Kuhn]

Hi

Today I was installing Koha 20.11.19 on a completely new virtual host 
using Debian 11.

  $ sudo cat /etc/apt/sources.list.d/koha.list
  deb http://debian.koha-community.org/koha 20.11 main
  $ sudo apt-get update
  $ sudo apt-cache show koha-common | grep Version
  Version: 20.11.19-1
  $ sudo apt-get install koha-common mariadb-server

In the output I see lines like:

  Get:16 http://debian.koha-community.org/koha 20.11/main amd64 
libcache-memcached-fast-safe-perl all 0.06-1~koha1 [7,410 B]
  Get:22 http://debian.koha-community.org/koha 20.11/main amd64 
libhttp-oai-3.27-perl all 3.27-1~koha+1 [92.7 kB]
  Get:16 http://debian.koha-community.org/koha 20.11/main amd64 
libcache-memcached-fast-safe-perl all 0.06-1~koha1 [7,410 B]
  Get:22 http://debian.koha-community.org/koha 20.11/main amd64 
libhttp-oai-3.27-perl all 3.27-1~koha+1 [92.7 kB]
  Get:36 http://debian.koha-community.org/koha 20.11/main amd64 
libmojolicious-perl all 9.90+really8.12-koha1 [794 kB]
  Get:75 http://debian.koha-community.org/koha 20.11/main amd64 
libjson-validator-perl all 5.99+really3.14-koha1 [54.2 kB]
  Get:85 http://debian.koha-community.org/koha 20.11/main amd64 
libmojolicious-plugin-openapi-perl all 5.99+really2.16-koha1 [57.1 kB]
  Get:88 http://debian.koha-community.org/koha 20.11/main amd64 
libpdf-fromhtml-perl all 0.31-1~koha1 [102 kB]
  Get:98 http://debian.koha-community.org/koha 20.11/main amd64 
libtemplate-plugin-htmltotext-perl all 0.03-1koha1 [6,134 B]
  Get:99 http://debian.koha-community.org/koha 20.11/main amd64 
koha-common all 20.11.19-1 [34.5 MB]
  Preparing to unpack .../523-koha-common_20.11.19-1_all.deb ...
  Unpacking koha-common (20.11.19-1) ...
  Setting up koha-common (20.11.19-1) ...

However after the installation when calling the web installer it 
annoyingly greets me saying "Welcome to the Koha 19.11 web installer"!

Can someone please explain what is going wrong here?

Best wishes: Michael
--
Geschäftsführer · Diplombibliothekar BBS, Informatiker eidg. Fachausweis
Admin Kuhn GmbH · Pappelstrasse 20 · 4123 Allschwil · Schweiz
T 0041 (0)61 261 55 61 · E mik at adminkuhn.ch · W www.adminkuhn.ch