FHIR Server Update: Improvements to Search Options and Data Export Functionality

Details

This summary is based on the release notes for the FHIR server, specifically referencing build 20190807-1. Key changes include adding sort parameters to search options (via pull request #586) and modifications related to continuation token encoding. Technically, significant improvements were made to the data export functionality: a fix was implemented for the Meta property not being set during bulk export, and logic was added to allow export jobs to be canceled. Furthermore, several package libraries (e.g., `Hl7.Fhir.Serialization`, `Hl7.FhirPath`, `Hl7.Fhir.R4`, `Hl7.Fhir.STU3`) were updated, alongside updates to dependent NuGet packages (e.g., `Microsoft.Azure.KeyVault`, `NSubstitute`). These changes enhance the robustness and functionality of FHIR-based data exchange systems. The addition of sorting capabilities for search results and the ability to cancel large data exports are crucial for clinical research and electronic health record data extraction/analysis, directly contributing to improved reliability in standard data linkage infrastructure within Japanese healthcare IT.