Release 8325: Automatic clearing of SOAP WSDL cache when changing PHP version

In this release we’ve added the automatic clearing of the SOAP WSDL cache when changing PHP versions. This prevents users from running into fatal PHP SOAP WSDL errors after running a PHP upgrade and makes sure that such system changes happen even more smoothly. These errors can be caused by the fact that the WSDL cache files may be incompatible between PHP versions.