DataDog/dd-trace-dotnet v1.18.3

1.18.3

on GitHub

New

• Add DD_TRACE_HEADER_TAGS environment variable to map incoming HTTP headers keys to tags (#790, #801)
  • Example: DD_TRACE_HEADER_TAGS=CASE-insensitive-Header:my-tag-name,User-ID:userId
  • The AspNet, AspNetWebApi2, AspNetCore, and Wcf integrations will apply the specified header values to tags on the root span
• Add DD_TRACE_STARTUP_LOGS to configure the tracer to write diagnostic logs at tracer startup (#799)

Fixes

• Fix incorrect null-check for ServiceVersion when sending metrics (#798)

Build / Test

• Add a catch block for ObjectDisposedException in test class MockTracerAgent (#805)

Known Issues and Workarounds

• Application fails to start with System.IO.FileNotFoundException System.Net.Http 4.0.0.0 (#876)
  • This issue has been fixed in .NET Tracer 1.19.2

Changes since 1.18.2