Changelog for version 21 

The ‘Schemas.exe’ self extracting executable (version 21) will ensure that the following XML Schemas, Action converter assembly and Globob.stg file will be applied to the Noah 4 desktop installation if required:
Noah XML Schemas:
Tinnitus-270-500.xsd
JournalDataStandard-256-500.xsd
RealEarMeasurement-3-4-500.xsd
HearingInstrumentFitting-131-132-500.xsd
NotificationAction-303-500.xsd
Admittance-15-16-501.xsd
Audiogram-1-500.xsd
Audiogram-1-502.xsd
AudiogramMetadata-269-500.xsd
CochlearImplantSoundProcessorSelection-264-265-500.xsd
HearingInstrumentSelection-129-130-500.xsd
HearingInstrumentTest-5-6-500.xsd
Impedance-15-16-500.xsd
RemoteControlSelection-133-500.xsd
ScanMetaDataStandard-263-500.xsd

WSI XML Schemas:
NoahDataExchangeV1-1.xsd
NoahDataExchangeV2-1.xsd
NoahDataExchangeV3-1.xsd
NoahDataExchangeV4-1.xsd
NoahDataExchangeV5-1.xsd
PatientExportV1-1.xsd
PatientExportV2-1.xsd
PatientExportV3-1.xsd
PatientExportV4-1.xsd
PatientExportV5-1.xsd

Action Converter assmebly:
NoahActionConverters.dll [version 4.15.0.6139]

System database:
GlobOb.stg [version 143]