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Update OpenTelemetry to 1.19.0 - #5909

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@dependencyupdates dependencyupdates Bot commented Sep 18, 2026

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This PR contains the following updates:

Package Change Age Adoption Passing Confidence
OpenTelemetry.Exporter.Console (source) 1.18.01.19.0 age adoption passing confidence
OpenTelemetry.Exporter.OpenTelemetryProtocol (source) 1.18.01.19.0 age adoption passing confidence
OpenTelemetry.Extensions.Hosting (source) 1.18.01.19.0 age adoption passing confidence
OpenTelemetry.Instrumentation.AspNetCore (source) 1.18.01.19.0 age adoption passing confidence
OpenTelemetry.Instrumentation.Http (source) 1.18.01.19.0 age adoption passing confidence
OpenTelemetry.Instrumentation.Runtime (source) 1.18.01.19.0 age adoption passing confidence

Release Notes

open-telemetry/opentelemetry-dotnet (OpenTelemetry.Exporter.Console)

v1.19.0

Release details: 1.19.0

  • Added Schema URL to internally created Resource instances.
  • Added AlwaysRecordSampler.
  • Added an AddOpenTelemetry extension method for IHostApplicationBuilder. It
    registers the OpenTelemetry SDK services and additionally seeds service.name
    from IHostEnvironment.ApplicationName and deployment.environment.name from
    IHostEnvironment.EnvironmentName as low-priority resource defaults. It also
    registers the host's live configuration into DI so that extensions receiving
    only IServiceCollection can contribute configuration sources during setup.
  • Extended key/value list attribute handling to cover additional dictionary
    shapes (IEnumerable<KeyValuePair<string, string?>> and IDictionary). These
    attributes will be serialized as JSON objects or kvlist, as appropriate.
  • If an exception is thrown when serializing an attribute, the attribute will now
    be dropped.
  • Disable HttpClientFactory integration on browser WebAssembly (e.g. Blazor)
    environments to avoid stalled export requests when async HTTP handlers are used.
  • Fixed CA certificate loading (e.g. using OTEL_EXPORTER_OTLP_CERTIFICATE) for
    PEM-encoded certificates that only contain a public key.
  • Fixed CircularBufferBuckets so the first delta histogram insertion after a
    reset does not result in an unnecessary scale reduction.
  • Fixed lazy logger provider builds after a failure from reusing partially
    initialized provider state.
  • Fixed parsing of an inbound tracestate header whose member value trimmed to
    an empty value that previously threw an IndexOutOfRangeException internally
    and could silently truncate the tracestate.
  • Prevented oversized metric metadata from being cached when it cannot fit within
    the configured request size.
  • Reduced allocations when formatting self-diagnostics events with up to three parameters.
  • Improved wildcard source/meter name matching to avoid excessive matching time
    at runtime.
  • Reduced allocations when creating log record attributes from an array.
  • Reduced allocations when setting baggage through the params overload.
  • Reduced allocations when constructing SpanAttributes from an array.

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@dependencyupdates dependencyupdates Bot added dependencies Pull requests that update a dependency file NuGet labels Sep 18, 2026
@dependencyupdates
dependencyupdates Bot force-pushed the renovate/open-telemetry branch from 0ab41a7 to 95e2015 Compare September 18, 2026 21:22
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