Do you know if there is a firm date set for R4 being released? Or a timeframe? I have not been able to find any dates when searching online.
The short version is that we inted to publish Release 4 at about the end of this year. We still don’t have a precise date yet – it’s subject to going ballot and feedback, and we have processes that we have to follow and how long they take depends on the feedback we get.
You can see the full details of the schedule on the FHIR Wiki