First of all i am a huge fan of Diet-Pi. I will NEVER use anything else for my raspberry

Now i elaborate my confusion:
I am still running wheezy image. Jessie is very new so i decided to wait for a while before upgrading.
I thought you need the iso to upgrade distribution not the dietpi-upgrade command.
I ran the dietpi-upgrade command as this is what i do once a week...
It now shows me v96 but raspcontrol is still there in software menu. so something is wrong...
if i am on wheezy it shouldn't be saying v96 cuz last wheezy version would be v94. if i am on jessie, raspcontrol shouldn't be there.
My Questions:
Am i now on wheezy or jessie?
shouldn't dietpi-upgrade stop working as soon as a new iso image is available?
Thank You