Differences in Configuring the Scenarios in both SAP PI 7.1 and PI 7.3 Versions

Hi Experts,

I have PI 7.1 Training Server. I am practising some Scenarios on the server. I want to know whether there is major difference for the Scenario creation in PI 7.3. I have not worked on PI 7.3 till now. Kindly let me know the differences in configuring the Scenarios in both the Versions.

Regards,
GIRIDHAR