Update changelog.md

Author: JamesNK

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## VNext
 
+- [Fix PropertyFetcher error when used with multiple types](https://github.com/microsoft/ApplicationInsights-dotnet/issues/2194)
+
 ## Version 2.17.0
 - [Fix: telemetry parent id when using W3C activity format in TelemetryDiagnosticSourceListener](https://github.com/microsoft/ApplicationInsights-dotnet/issues/2142)
 - [Add ingestion response duration for transmission to data delivery status - TransmissionStatusEventArgs](https://github.com/microsoft/ApplicationInsights-dotnet/pull/2157)