[pve-devel] Magic auto upgrade?

[Stefan Priebe - Profihost AG]

Hello list,

i've a local PVE Image which i use to install my PVE machines. I boot
this one every night do an
apt-get update && apt-get dist-upgrade

This one has now upgraded from Debian Squeeze to Wheezy? But why? I
wanted to stay a while still at squeeze.

My other Debian images nor my productive PVE systems have done this
step. Has Proxmox a magic auto update feature?

Any chance to roll back? I've Backups but they're already all at Debian 7.0.

Greets,
Stefan