Conversion from Gemini 2.2 to 2.3

A conversion xsl is provided for converting from Gemini 2.2 to 2.3.

This can be found in https://github.com/AstunTechnology/iso19139.gemini23/blob/3.8.x/src/main/plugin/iso19139.gemini23/convert/xml_gemini22gemini23.xsl but in reality it needs to be copied to your geonetwork\xsl\conversion\import folder.

Once copied to the above folder the conversion script will be available from the Import new records tool in GeoNetwork.

This script will make a couple of changes to your metadata to make it compliant:

1. Add or otherwise update the MetadataStandardName to UK GEMINI and the MetadataStandardVersion to 2.3
2. Change the encoding of the access constraints and use limitations elements to meet the new standard, either making a best guess at moving your existing constraints into the correct encoding, or adding the default "no limitations" constraints as appropriate
3. Add a default conformance report for datasets or services