2.0.0-beta2 for R4 (released 20200922)

This is second preview of version 2.0.0.

Version 2.0.0 contains:

• Moved some base Model classes to the common project, like Resource and Fhir types. They are now Fhir version agnostic.
• Refactored to a complete new FhirClient based on HttpClient instead of HttpWebRequest and HttpWebResponse
• FhirPath code to Normative standard (http://hl7.org/fhirpath/N1/)
• Async
• And lots more

We tried to keep the backwards incompatible changes as minimum as possible. See here for an overview of those changes. This document can help you to upgrade.

See here the announcement of 2.0.0.

This is an beta2 version and is not production ready yet!