[ Thanks to Falko
Timme for this link. ]
“1 Preliminary Note
I’m using a Debian Lenny (stable) system here. I will explain
apt-pinning on the basis of the package phpmyadmin which is
available in three different versions in the stable, testing, and
unstable repositories (at the time of this writing) – see
http://packages.debian.org/search?keywords=phpmyadmin&searchon=names&suite=all§ion=all:lenny (stable): version 4:2.11.8.1-5
squeeze (testing): version 4:3.1.2-2
sid (unstable): version 4:3.1.3-1″