BGP Production router Upgrade 7.5 to 7.6

Anybody tried to upgrade a production router from RouterOS 7.5. 7.6?
We have a simple BGP config where the router does nothing else but BGP peering / traffic forwarding. Currently running on 7.5.
We are receiving a default route from one peer plus about 130k routes from a second peer.

Not exctly from 7.5 but:
http://forum.mikrotik.com/t/v7-6-stable-is-released/161553/1

Thx for the response, i will take the discussion further there.