Impact of EHP-1 installation on SAP PI 7.1 system

Hello Experts,

In our System Integration Landscape, we are using the SAP PI 7.1 and many interfaces are runging successfully by using the SOAP, JDBC, Mail, File, XI Adapters.

we are planning to install the EHP-1 in the SAP PI 7.1 Development system.

Question:- Is there any Impact of installing EHP-1 on the existing interfaces development?

Please suggest.

Thanks & Regards

Jagesh