[release] Core stable release 1.20.0 updates by otelbot-dotnet[bot] · Pull Request #7950 · open-telemetry/opentelemetry-dotnet

otelbot-dotnet · 2026-10-15T13:55:59Z

Note: This PR was opened automatically by the post-release workflow.

Merge once packages are available on NuGet and the build passes.

Changes

Sets OTelLatestStableVer in Directory.Packages.props to 1.20.0.

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.29%. Comparing base (d5b2f8a) to head (4d226d4).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7950      +/-   ##
==========================================
- Coverage   92.36%   92.29%   -0.07%     
==========================================
  Files         363      363              
  Lines       21035    21035              
==========================================
- Hits        19428    19415      -13     
- Misses       1607     1620      +13

Flag	Coverage Δ
unittests-PowerShellScripts	`87.43% <ø> (ø)`
unittests-Project-Experimental	`92.42% <ø> (ø)`
unittests-Project-Stable	`92.42% <ø> (-0.06%)`	⬇️
unittests-Solution	`92.41% <ø> (+0.05%)`	⬆️
unittests-UnstableCoreLibraries-Experimental	`45.25% <ø> (-0.03%)`	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.
see 4 files with indirect coverage changes

….0 (#1530) Updated [OpenTelemetry.Exporter.OpenTelemetryProtocol](https://github.com/open-telemetry/opentelemetry-dotnet) from 1.19.1 to 1.20.0. <details> <summary>Release notes</summary> _Sourced from [OpenTelemetry.Exporter.OpenTelemetryProtocol's releases](https://github.com/open-telemetry/opentelemetry-dotnet/releases)._ ## 1.20.0 For highlights and announcements pertaining to this release see: [Release Notes > 1.20.0](https://github.com/open-telemetry/opentelemetry-dotnet/blob/main/RELEASENOTES.md#1200). The following changes are from the previous release [1.19.1](https://github.com/open-telemetry/opentelemetry-dotnet/releases/tag/core-1.19.1). * NuGet: [OpenTelemetry v1.20.0](https://www.nuget.org/packages/OpenTelemetry/1.20.0) * Fixed `SuppressInstrumentationScope` reference counts leaking between inherited asynchronous execution contexts. ([#7803](open-telemetry/opentelemetry-dotnet#7803)) * Self-diagnostic features are explicitly disabled on browser-based platforms (e.g. Blazor) and are now non-functional. Previously, attempting to enable self-diagnostics on such platforms would result in an exception at runtime. ([#7799](open-telemetry/opentelemetry-dotnet#7799)) * Added `TracerProviderBuilder.ConfigureSampler` which receives the resolved `Sampler` whether set programmatically, via `OTEL_TRACES_SAMPLER`, or by default, and returns a replacement. Intended for library authors who need to influence sampling without overriding a sampler the application has configured. ([#7780](open-telemetry/opentelemetry-dotnet#7780)) * Fixed `ResourceBuilder.CreateDefault` ignoring `OTEL_RESOURCE_ATTRIBUTES` and `OTEL_SERVICE_NAME` environment variables when the host `IConfiguration` does not contain those settings. ([#7855](open-telemetry/opentelemetry-dotnet#7855)) * Added improved self-diagnostics logging to improve the support experience. The new `SelfDiagnosticsOptions` class configures a rolling file sink and a console sink through the standard options pipeline. Sinks are off by default. ([#7588](open-telemetry/opentelemetry-dotnet#7588)) * Fixed a race that could incorrectly route a concurrent metric measurement to the overflow point when its tag set was published as the cardinality limit was reached. ([#7804](open-telemetry/opentelemetry-dotnet#7804)) * Added `OpenTelemetryLoggerOptions.Version` and `OpenTelemetryLoggerOptions.SchemaUrl` options to set an instrumentation library version and schema URL applied to logs emitted via the `Microsoft.Extensions.Logging` `ILogger` integration. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * Fixed `LogRecord.CategoryName` resetting the current `Logger`'s `Version` to `null` when set to a new value. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * Bounded the internal cache of `Logger` scopes keyed by instrumentation to avoid unbounded growth. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * Fixed the `MeterProvider` and its `IServiceProvider` being kept alive after the host is disposed when using `Microsoft.Extensions.Diagnostics` versions prior to 9.0, which never dispose their `MetricsSubscriptionManager` (and its underlying `MeterListener`). ([#7924](open-telemetry/opentelemetry-dotnet#7924)) * Fixed a race condition between recording a measurement and collecting a histogram with delta temporality that could cause an empty data point (with a count of zero) to be exported in the next collection cycle. ([#7923](open-telemetry/opentelemetry-dotnet#7923)) * Improved metric collection performance after metric streams are removed by compacting metric storage during collection. ([#7945](open-telemetry/opentelemetry-dotnet#7945)) See [CHANGELOG](https://github.com/open-telemetry/opentelemetry-dotnet/blob/core-1.20.0/src/OpenTelemetry/CHANGELOG.md) for details. * NuGet: [OpenTelemetry.Api v1.20.0](https://www.nuget.org/packages/OpenTelemetry.Api/1.20.0) * Added `Logger.SchemaUrl` and a `LoggerProvider.GetLogger` overload accepting a schema URL parameter using the new `LoggerOptions` type. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * **Breaking change** (pre-release only versions): `LoggerProvider`'s protected `TryCreateLogger(string? name, out Logger? logger)` extensibility method has been replaced by `TryCreateLogger(LoggerOptions options, out Logger? logger)`. Custom `LoggerProvider` subclasses that override the previous overload must update to override the new one; the old overload is no longer called. ... (truncated) ## 1.20.0-rc.1 The following changes are from the previous release [1.19.1](https://github.com/open-telemetry/opentelemetry-dotnet/releases/tag/core-1.19.1). * NuGet: [OpenTelemetry v1.20.0-rc.1](https://www.nuget.org/packages/OpenTelemetry/1.20.0-rc.1) * Fixed `SuppressInstrumentationScope` reference counts leaking between inherited asynchronous execution contexts. ([#7803](open-telemetry/opentelemetry-dotnet#7803)) * Self-diagnostic features are explicitly disabled on browser-based platforms (e.g. Blazor) and are now non-functional. Previously, attempting to enable self-diagnostics on such platforms would result in an exception at runtime. ([#7799](open-telemetry/opentelemetry-dotnet#7799)) * Added `TracerProviderBuilder.ConfigureSampler` which receives the resolved `Sampler` whether set programmatically, via `OTEL_TRACES_SAMPLER`, or by default, and returns a replacement. Intended for library authors who need to influence sampling without overriding a sampler the application has configured. ([#7780](open-telemetry/opentelemetry-dotnet#7780)) * Fixed `ResourceBuilder.CreateDefault` ignoring `OTEL_RESOURCE_ATTRIBUTES` and `OTEL_SERVICE_NAME` environment variables when the host `IConfiguration` does not contain those settings. ([#7855](open-telemetry/opentelemetry-dotnet#7855)) * Added improved self-diagnostics logging to improve the support experience. The new `SelfDiagnosticsOptions` class configures a rolling file sink and a console sink through the standard options pipeline. Sinks are off by default. ([#7588](open-telemetry/opentelemetry-dotnet#7588)) * Fixed a race that could incorrectly route a concurrent metric measurement to the overflow point when its tag set was published as the cardinality limit was reached. ([#7804](open-telemetry/opentelemetry-dotnet#7804)) * Added `OpenTelemetryLoggerOptions.Version` and `OpenTelemetryLoggerOptions.SchemaUrl` options to set an instrumentation library version and schema URL applied to logs emitted via the `Microsoft.Extensions.Logging` `ILogger` integration. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * Fixed `LogRecord.CategoryName` resetting the current `Logger`'s `Version` to `null` when set to a new value. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * Bounded the internal cache of `Logger` scopes keyed by instrumentation to avoid unbounded growth. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * Fixed the `MeterProvider` and its `IServiceProvider` being kept alive after the host is disposed when using `Microsoft.Extensions.Diagnostics` versions prior to 9.0, which never dispose their `MetricsSubscriptionManager` (and its underlying `MeterListener`). ([#7924](open-telemetry/opentelemetry-dotnet#7924)) * Fixed a race condition between recording a measurement and collecting a histogram with delta temporality that could cause an empty data point (with a count of zero) to be exported in the next collection cycle. ([#7923](open-telemetry/opentelemetry-dotnet#7923)) * Improved metric collection performance after metric streams are removed by compacting metric storage during collection. ([#7945](open-telemetry/opentelemetry-dotnet#7945)) See [CHANGELOG](https://github.com/open-telemetry/opentelemetry-dotnet/blob/core-1.20.0-rc.1/src/OpenTelemetry/CHANGELOG.md) for details. * NuGet: [OpenTelemetry.Api v1.20.0-rc.1](https://www.nuget.org/packages/OpenTelemetry.Api/1.20.0-rc.1) * Added `Logger.SchemaUrl` and a `LoggerProvider.GetLogger` overload accepting a schema URL parameter using the new `LoggerOptions` type. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) * **Breaking change** (pre-release only versions): `LoggerProvider`'s protected `TryCreateLogger(string? name, out Logger? logger)` extensibility method has been replaced by `TryCreateLogger(LoggerOptions options, out Logger? logger)`. Custom `LoggerProvider` subclasses that override the previous overload must update to override the new one; the old overload is no longer called. ([#7727](open-telemetry/opentelemetry-dotnet#7727)) ... (truncated) ## 1.20.0-beta.1 The following changes are from the previous release [1.19.1-beta.1](https://github.com/open-telemetry/opentelemetry-dotnet/releases/tag/coreunstable-1.19.1-beta.1). * NuGet: [OpenTelemetry.Exporter.Prometheus.AspNetCore v1.20.0-beta.1](https://www.nuget.org/packages/OpenTelemetry.Exporter.Prometheus.AspNetCore/1.20.0-beta.1) * A scrape request whose connection is aborted, or whose `X-Prometheus-Scrape-Timeout-Seconds` deadline elapses, now stops waiting for an in-progress metrics collection instead of continuing to wait for it to finish. The collection itself is not cancelled and continues running in the background. ([#7856](open-telemetry/opentelemetry-dotnet#7856)) * Updated OpenTelemetry core component version(s) to `1.20.0`. ([#7950](open-telemetry/opentelemetry-dotnet#7950)) See [CHANGELOG](https://github.com/open-telemetry/opentelemetry-dotnet/blob/coreunstable-1.20.0-beta.1/src/OpenTelemetry.Exporter.Prometheus.AspNetCore/CHANGELOG.md) for details. * NuGet: [OpenTelemetry.Exporter.Prometheus.HttpListener v1.20.0-beta.1](https://www.nuget.org/packages/OpenTelemetry.Exporter.Prometheus.HttpListener/1.20.0-beta.1) * Updated OpenTelemetry core component version(s) to `1.20.0`. ([#7950](open-telemetry/opentelemetry-dotnet#7950)) See [CHANGELOG](https://github.com/open-telemetry/opentelemetry-dotnet/blob/coreunstable-1.20.0-beta.1/src/OpenTelemetry.Exporter.Prometheus.HttpListener/CHANGELOG.md) for details. * NuGet: [OpenTelemetry.Shims.OpenTracing v1.20.0-beta.1](https://www.nuget.org/packages/OpenTelemetry.Shims.OpenTracing/1.20.0-beta.1) * Updated OpenTelemetry core component version(s) to `1.20.0`. ([#7950](open-telemetry/opentelemetry-dotnet#7950)) See [CHANGELOG](https://github.com/open-telemetry/opentelemetry-dotnet/blob/coreunstable-1.20.0-beta.1/src/OpenTelemetry.Shims.OpenTracing/CHANGELOG.md) for details. Commits viewable in [compare view](open-telemetry/opentelemetry-dotnet@core-1.19.1...core-1.20.0). </details> [![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=OpenTelemetry.Exporter.OpenTelemetryProtocol&package-manager=nuget&previous-version=1.19.1&new-version=1.20.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores) Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`. [//]: # (dependabot-automerge-start) [//]: # (dependabot-automerge-end) --- <details> <summary>Dependabot commands and options</summary> <br /> You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) </details> Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Update OTelLatestStableVer in Directory.Packages.props to 1.20.0.

39b5310

otelbot-dotnet Bot requested a review from a team as a code owner October 15, 2026 13:56

otelbot-dotnet Bot added the release Related to the release process label Oct 15, 2026

Update CHANGELOGs for projects using OTelLatestStableVer.

4d226d4

opentelemetry-pr-dashboard Bot mentioned this pull request Oct 15, 2026

Pull Request Dashboard #7539

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martincostello approved these changes Oct 15, 2026

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martincostello enabled auto-merge October 15, 2026 14:11

martincostello added this pull request to the merge queue Oct 15, 2026

Merged via the queue into main with commit 8951225 Oct 15, 2026
206 of 209 checks passed

martincostello deleted the otelbot/post-stable-core-1.20.0-update branch October 15, 2026 14:53

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[release] Core stable release 1.20.0 updates - #7950

[release] Core stable release 1.20.0 updates#7950
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