org.hl7.fhir.core/RELEASE_NOTES.md

Validator Changes

• Fix for errors in FHIRPath evaluation (see https://chat.fhir.org/#narrow/stream/179266-fhirpath/topic/String.20functions)

Other code changes

• R4B BackboneType fixes
• Add R4B to R5 interconversion code
• Improvements to Rendering Documents
• Add uuid to primitive types list