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Starting with V3.0 of this plugin/extension, upgrades will be managed via the PluginInstallation process and every attempt willl be made to maintain compatibility to the greatest extent possible.
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Finally, you should review the new documentation in the areas that address the settings you previously added and compare those sections to the original documentation to understand the differences. This consists in most cases of class name or bean name differences, or in the case of custom XML within the Attribute Resolver and Attribute Filter configurations, changes to the xsi:type values used for various features and to the XML namespace boilerplate at the top of those files.
When complete, you will have copied back changed versions of some files used before, adjusted settings in other files, and should be close to a system working hopefully close to identically as before. You should have no references to "geant" or "csc.fi" XML namespaces, classes, or types in your configuration at that stage, and should remove any that remain.
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These files are no longer supplied or assumed, and if you have unrelated definitions or settings in them, you will probably need to move them:
conf/global-oidc.xml
conf/oidc-relying-party.xml
conf/services-oidc.xml
conf/authn/authn-comparison-oidc.xml
If you previously were instructed to, and did, set the idp.service.attribute.registry.namingRegistry property in services.properties, you should remove it entirely.
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