0.22.0

Improvements

• Updated minimum Jackson dependency to 2.9.8 for security vulnerability remediation #658
  • This should be transparent if you're using dd-java-agent, but might cause dependency conflicts if using dd-trace-ot.
• Support Kotlin coroutine context propagation (Thanks @markoferrer) #653
• Add config to partially flush spans from large traces #662
  • Add the following config to set the threshold for large traces:
    • System property: -Ddd.trace.partial.flush.min.spans=100
    • Environment Variable: DD_TRACE_PARTIAL_FLUSH_MIN_SPANS=100
• Customize trace event sample rate per service by setting a tag #640

Fixes

• Prevent jmx metric capture from prematurely initializing custom LogManagers until after it's been successfully initialized #657