org.hl7.fhir.core/RELEASE_NOTES.md

Major change:

• New R5 release - rebuild R5 implementation, update a lot of related code

Validator Changes

• Load separate R5 extensions package
• Load FML directly, and validate mapping as much as possible

Other code changes

• Fix bugs in Java R5 code generator
• Add more control at the code level over how to handle unknown profiles when generating snapshots
• Rework ConceptMap for major R5 changes
• Fix bug in CommaGeneratedStringBuilder (calling toString() multiple times duplicated content)
• handle case [reference].where(resolve() is X) when analysing types+elements in FHIRPath statements