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@zacharycmontoya zacharycmontoya released this 09 Jul 20:22
· 3886 commits to master since this release
v1.18.2
1764b03
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Learn about vigilant mode.

New

  • Add support for Datadog Synthetics distributed tracing HTTP header (#781)
  • Add diagnostic logs at tracer startup for cross-language tracer consistency (#769, #776)

Fixes

  • Improve logic in outbound HTTP automatic instrumentation to generate exactly one automatic instrumentation span (#780)
  • Ensure IIS applications run the automatic instrumentation startup hook only once at application start (#775, #778)

Performance Overhead

  • Reduce heap allocations in the following methods:
    • MethodBuilder, used throughout all integrations (#760)
    • ObjectExtensions, used throughout all integrations (#759)
    • SpanExtensions.AddTagsFromDbCommand, used in the AdoNet integration (#774)
    • UriHelpers.GetRelativeUrl, used in the AspNet, AspNetWebApi2, AspNetMvc, and AspNetCore integrations (#783)
    • AspNetCoreDiagnosticObserver, used in the AspNetCore integration (#779)
    • StringExtensions.ToBoolean (#789)
  • Improve performance in Span.Finish (#763)

Build / Test

  • Increase timeouts in smoke tests and read their output asynchronously (#788, #768)
  • Improve reliability of RateLimiter unit tests (#787)

Known Issues and Workarounds

  • Application fails to start with System.IO.FileNotFoundException System.Net.Http 4.0.0.0 (#876)

Changes since 1.18.0

Assets 9