system
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igor thanks a lot 
The status bar setting was indeed to blame and I unchecked “Program version”.
What I was saying is that the status bar was always monitoring “Program version”, and until today Avast did not consider not using the very latest version, a security risc, ergo my conclusion that the behaviour was changed on purpose.
No matter, it’s fixed now, I have no problem with monitoring the Program version myself, I’ve been doing that anyway, program updates was and is set to manual.
Thanks 