It's time for another release of HAPI FHIR!

This release brings some good stuff, including:

• A new feature called Partitioning has been added to the JPA server. This can be used to implement multitenancy, as well as other partitioned/segregated/sharded use cases.

• The IValidationSupport interface has been completely redesigned for better flexibility, extensibility and to enable future use cases. Any existing implementations of this interface will need to be adjusted.

• Many improvements to performance have been implemented

• FHIR R5 draft definitions have been updated to the latest FHIR 4.2.0 (Preview 2) definitions

• The Gson JSON parser has been replaced with Jackson for better flexibility and performance

As always, see the changelog for a full list of changes.

Thanks to everyone who contributed to this release!