core-1.12.0

For highlights and announcements pertaining to this release see: Release Notes > 1.12.0.

The following changes are from the previous release 1.11.2.

• NuGet: OpenTelemetry v1.12.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.12.0

  • Added a new overload for TracerProvider.GetTracer which accepts an optional
    IEnumerable<KeyValuePair<string, object?>>? tags parameter, allowing
    additional attributes to be associated with the Tracer.
    (#6137)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.12.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.12.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.12.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.12.0

  • Breaking Change: .NET Framework and .NET Standard builds now default to
    exporting over OTLP/HTTP instead of OTLP/gRPC. This change could result in a
    failure to export telemetry unless appropriate measures are taken.
    Additionally, if you explicitly configure the exporter to use OTLP/gRPC it may
    result in a NotSupportedException without further configuration. Please
    carefully review issue
    (#6209)
    for additional information and workarounds.
    (#6229)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.12.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.12.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.12.0

  No notable changes.

  See CHANGELOG for details.

coreunstable-1.11.2-beta.1

The following changes are from the previous release 1.11.0-beta.1.

• NuGet: OpenTelemetry.Exporter.Prometheus.AspNetCore v1.11.2-beta.1

  • Updated OpenTelemetry core component version(s) to 1.11.2.
    (#6169)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Prometheus.HttpListener v1.11.2-beta.1

  • Updated OpenTelemetry core component version(s) to 1.11.2.
    (#6169)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Shims.OpenTracing v1.11.2-beta.1

  • Updated OpenTelemetry core component version(s) to 1.11.2.
    (#6169)

  See CHANGELOG for details.

core-1.11.2

For highlights and announcements pertaining to this release see: Release Notes > 1.11.2.

The following changes are from the previous release 1.11.1.

• NuGet: OpenTelemetry v1.11.2

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.11.2

  • Revert optimize performance of TraceContextPropagator.Extract introduced
    in #5749 to resolve #6158.
    (#6161)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.11.2

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.11.2

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.11.2

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.11.2

  • Fixed a bug in .NET Framework gRPC export client where the default success
    export response was incorrectly marked as false, now changed to true, ensuring
    exports are correctly marked as successful.
    (#6099)

  • Fixed an issues causing trace exports to fail when
    Activity.StatusDescription exceeds 127 bytes.
    (#6119)

  • Fixed incorrect log serialization of attributes with null values, causing
    some backends to reject logs.
    (#6149)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.11.2

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.11.2

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.11.2

  No notable changes.

  See CHANGELOG for details.

core-1.11.1

For highlights and announcements pertaining to this release see: Release Notes > 1.11.1.

The following changes are from the previous release 1.11.0.

• NuGet: OpenTelemetry v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.11.1

  • Fixed an issue where the OTLP gRPC exporter did not export logs, metrics, or
    traces in .NET Framework projects.
    (#6067)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.11.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.11.1

  No notable changes.

  See CHANGELOG for details.

core-1.11.0

For highlights and announcements pertaining to this release see: Release Notes > 1.11.0.

The following changes are from the previous release 1.11.0-rc.1.

• NuGet: OpenTelemetry v1.11.0

  • Meter.Tags
    will now be considered when resolving the SDK metric to update when
    measurements are recorded. Meters with the same name and different tags will
    now lead to unique metrics.
    (#5982)

  • Fixed a bug in tracing where TraceState set by a custom Sampler is not
    applied when creating propagation-only spans.
    (#6058)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.11.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.11.0

  No notable changes.

  See CHANGELOG for details.

coreunstable-1.11.0-beta.1

The following changes are from the previous release 1.10.0-beta.1.

• NuGet: OpenTelemetry.Exporter.Prometheus.AspNetCore v1.11.0-beta.1

  • Updated OpenTelemetry core component version(s) to 1.11.0.
    (#6064)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Prometheus.HttpListener v1.11.0-beta.1

  • Updated OpenTelemetry core component version(s) to 1.11.0.
    (#6064)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Shims.OpenTracing v1.11.0-beta.1

  • Updated OpenTelemetry core component version(s) to 1.11.0.
    (#6064)

  See CHANGELOG for details.

core-1.11.0-rc.1

The following changes are from the previous release 1.10.0.

• NuGet: OpenTelemetry v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.11.0-rc.1

  • Removed the following package references:

    • Google.Protobuf
    • Grpc
    • Grpc.Net.Client

    These changes were made to streamline dependencies and reduce the footprint of
    the exporter.
    (#6005)

  • Switched from using the Google.Protobuf library for serialization to a
    custom manual implementation of protobuf serialization.
    (#6005)

  • Fixed an issue where a service.name was added to the resource if it was
    missing. The exporter now respects the resource data provided by the SDK
    without modifications.
    (#6015)

  • Removed the peer service resolver, which was based on earlier experimental
    semantic conventions that are not part of the stable specification. This
    change ensures that the exporter no longer modifies or assumes the value of
    peer service attributes, aligning it more closely with OpenTelemetry protocol
    specifications.
    (#6005)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.11.0-rc.1

  No notable changes.

  See CHANGELOG for details.

core-1.10.0

For highlights and announcements pertaining to this release see: Release Notes > 1.10.0.

The following changes are from the previous release 1.10.0-rc.1.

• NuGet: OpenTelemetry v1.10.0

  • Promoted the MetricPoint reclaim feature for Delta aggregation temporality
    from experimental to stable.
    (#5956)

    Previous Behavior:
    The SDK maintained a fixed set of MetricPoints which were assigned on a
    first-come basis based on the tags. MetricPoint reclaim was an experimental
    feature users could opt-into setting the environment variable
    OTEL_DOTNET_EXPERIMENTAL_METRICS_RECLAIM_UNUSED_METRIC_POINTS=true.

    New Behavior:
    MetricPoint reclaim is now enabled by default when Delta aggregation
    temporality is used without the need to set an environment variable. Unused
    MetricPoints will automatically be reclaimed and reused for future
    measurements. There is NO ability to revert to the old behavior.

  • Updated the Microsoft.Extensions.Logging.Configuration and
    Microsoft.Extensions.Diagnostics.Abstractions package versions to
    9.0.0.
    (#5967)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.10.0

  • Updated System.Diagnostics.DiagnosticSource package version to
    9.0.0.
    (#5967)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.10.0

  • Updated Microsoft.Extensions.DependencyInjection.Abstractions package
    version to 9.0.0.
    (#5967)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.10.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.10.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.10.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.10.0

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.10.0

  • Updated Microsoft.Extensions.Hosting.Abstractions package
    version to 9.0.0.
    (#5967)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.10.0

  No notable changes.

  See CHANGELOG for details.

coreunstable-1.10.0-beta.1

The following changes are from the previous release 1.9.0-beta.2.

• NuGet: OpenTelemetry.Exporter.Prometheus.AspNetCore v1.10.0-beta.1

  • Added meter-level tags to Prometheus exporter
    (#5837)

  • Updated OpenTelemetry core component version(s) to 1.10.0.
    (#5970)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Prometheus.HttpListener v1.10.0-beta.1

  • Added meter-level tags to Prometheus exporter
    (#5837)

  • Updated OpenTelemetry core component version(s) to 1.10.0.
    (#5970)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Shims.OpenTracing v1.10.0-beta.1

  • Fixed an issue causing all tag values added via the ISpanBuilder API to be
    converted to strings on the ISpan started from the builder.
    (#5797)

  • Updated OpenTelemetry core component version(s) to 1.10.0.
    (#5970)

  See CHANGELOG for details.

core-1.10.0-rc.1

The following changes are from the previous release 1.10.0-beta.1.

• NuGet: OpenTelemetry v1.10.0-rc.1

  • The experimental APIs previously covered by OTEL1003
    (MetricStreamConfiguration.CardinalityLimit) are now part of the public API
    and supported in stable builds.
    (#5926)

  • Promoted overflow attribute from experimental to stable and removed the
    OTEL_DOTNET_EXPERIMENTAL_METRICS_EMIT_OVERFLOW_ATTRIBUTE environment variable.

    Previous Behavior:
    By default, when the cardinality limit was reached, measurements were dropped,
    and an internal log was emitted the first time this occurred. Users could
    opt-in to experimental overflow attribute feature with
    OTEL_DOTNET_EXPERIMENTAL_METRICS_EMIT_OVERFLOW_ATTRIBUTE=true.
    With this setting, the SDK would use an overflow attribute
    (otel.metric.overflow = true) to aggregate measurements instead of dropping
    measurements. No internal log was emitted in this case.

    New Behavior:
    The SDK now always uses the overflow attribute (otel.metric.overflow = true)
    to aggregate measurements when the cardinality limit is reached. The previous
    approach of dropping measurements has been removed. No internal logs are
    emitted when the limit is hit.

    The default cardinality limit remains 2000 per metric. To set the cardinality
    limit for an individual metric, use the changing cardinality limit for a
    Metric.

    There is NO ability to revert to old behavior.
    (#5909)

  • Exposed a public constructor on Batch<T> which accepts a single instance
    of T to be contained in the batch.
    (#5642)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api v1.10.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.10.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Console v1.10.0-rc.1

  • Added direct reference to System.Text.Json for the net8.0 target with
    minimum version of 8.0.5 in response to
    CVE-2024-30105 &
    CVE-2024-43485.
    (#5874,
    #5891)

  • Added support for Instrumentation Scope Attributes (i.e
    ActivitySource.Tags)
    when writing traces to the console.
    (#5935)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.InMemory v1.10.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.OpenTelemetryProtocol v1.10.0-rc.1

  • Added support for exporting instrumentation scope attributes from
    ActivitySource.Tags.
    (#5897)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Exporter.Zipkin v1.10.0-rc.1

  • Added direct reference to System.Text.Json for the net8.0 target with
    minimum version of 8.0.5 in response to
    CVE-2024-30105 &
    CVE-2024-43485.
    (#5874,
    #5891)

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Hosting v1.10.0-rc.1

  No notable changes.

  See CHANGELOG for details.

• NuGet: OpenTelemetry.Extensions.Propagators v1.10.0-rc.1

  No notable changes.

  See CHANGELOG for details.