Migration SAP GUI Installation server 7.30 to 7.40

Hi,

I am looking for some one who has expiernece in the mirgation of a SAP GUI installation server from 7.30 to 7.40.

How did you do it, didi you setup an extra new server or did you update the packages?
What is about the new configuration file which replaced the saploon.ini etc.
How do you handle e central configuration file with 7.40?

How do you deploy the new version?

Thanks in advance sharing your expierence and know how with me.

Regards

Roland