Update of XRechnung to the current version 2.2

Only for the german market: The version standard v2.2 for the creation of a digital invoice ("XRechnung") valid from 01 August 2022 has been integrated in PROAD, so that all "XRechnung" invoices created from this date correspond to the then valid version. Until 31 July 2022, an "XRechnung" will still be created according to the version standard valid until then. In order to be able to create a valid "XRechnung" from 01 August 2022, a previous update of PROAD is absolutely necessary.

The summer release of the German invoice standard "XRechnung" is due on 1.8.2022 - with PROAD you are on the safe side and can create invoices on time with the new version.