I have been using my K8200 for almost 3 years now and I am very satisfied with it.
I have recently updated the Repetier host software to 1.6.2 and that works fine, without any problems.
I was wondering if it would be usefull to also should update the Marlin firmware to a newer version, and -if so- what version should I use?
Can you help me?
All downloads for the K8200 can be found in this link.
http://www.k8200.eu/support/downloads/
Depending what features you have installed will determine which firmware to load.