Start development cycle 6.4.1

Author: mmsmits

src/firely-net-sdk.props

@@ -6,7 +6,7 @@
 
 	<!-- Solution-wide properties for NuGet packaging -->
 	<PropertyGroup>
-		<VersionPrefix>6.4.0</VersionPrefix>
+		<VersionPrefix>6.4.1</VersionPrefix>
 		<VersionSuffix></VersionSuffix>
 		<Authors>Firely (info@fire.ly) and contributors</Authors>
 		<Company>Firely (https://fire.ly)</Company>
@@ -37,7 +37,7 @@
 		<GenerateDocumentationFile>True</GenerateDocumentationFile>
 		<Configurations>Debug;Release;FullDebug</Configurations>
 		<EnablePackageValidation>true</EnablePackageValidation>
-		<PackageValidationBaselineVersion>6.3.0</PackageValidationBaselineVersion>
+		<PackageValidationBaselineVersion>6.4.0</PackageValidationBaselineVersion>
 		<!-- Error	CS4014	Because this call is not awaited, execution of the current method continues before the call is completed.
 		Consider applying the 'await' operator to the result of the call.	-->
 		<WarningsAsErrors>CS4014</WarningsAsErrors>