v2.5.0-beta2 (2.5.0-44811)

• Remove calculation of sampling-score based on Context.User.Id Issue #625
• New sdk-driven "heartbeat" functionality added which sends health status at pre-configured intervals. See extending heartbeat properties doc for more information
• Fixes a bug in ServerTelemetryChannel which caused application to crash on non-windows platforms.
  [Details on fix and workaround #654] (#654)
  Original issue (microsoft/ApplicationInsights-aspnetcore#551)
• Fixed a bug with the AdaptiveSamplingTelemetryProcessor that would cause starvation over time. Issue #756 (dotnet-server)
• Updated solution to build on Mac!