ApplicationVersion is ignored in v3

[ArturDorochowicz]

• List of NuGet packages and version that you are using:
  • Microsoft.ApplicationInsights.AspNetCore 3.0.0
• Runtime version (e.g. net461, net48, netcoreapp2.1, netcoreapp3.1, etc. You can find this information from the *.csproj file):
  • net10.0
• Hosting environment (e.g. Azure Web App, App Service on Linux, Windows, Ubuntu, etc.):
  • Windows

Describe the bug

In v3, the value set on ApplicationInsightsServiceOptions.ApplicationVersion is ignored and not sent with telemetry.

To Reproduce

Just do services.AddApplicationInsightsTelemetry(). This should be typically sending "1.0.0" with the telemetry.

ApplicationInsights-dotnet/NETCORE/src/Shared/Extensions/ApplicationInsightsServiceOptions.cs

Line 48 in 3845c40

public string ApplicationVersion { get; set; } = Assembly.GetEntryAssembly()?.GetName().Version.ToString();

The version is not sent. This can be verified in the Azure Portal.

[rajkumar-rangaraj]

Thanks for reporting this! You're absolutely right - this needs to be fixed.