<PackageReference Include="System.Text.Json" Version="9.0.0-preview.6.24327.7" />

API Differences between 9.0.0-preview.6.24327.7 and 4.7.1

620 Additions 2 Removals

System.Text.Json

System.Text.Json.Nodes

System.Text.Json.Schema

System.Text.Json.Serialization

System.Text.Json.Serialization.Metadata