Schema Registry concepts Learn about the basic concepts of Schema Registry. Schema entitiesLearn about the three types of schema entity types: Schema Group, Schema Metadata, Schema Version.Compatibility policiesLearn about the compatibility policies to be able to manage versioning of schemas in Schema Registry.Importance of logical types in AvroThe importance of logical types in Avro format for Schema Registry can be represented with an example using a decimal logical type.Parent topic: Schema Registry overview