dotnet/extensions v10.9.0

on GitHub

Version 10.9.0 is headlined by changes in these areas:

• AI: New experimental routing APIs center on the abstract RoutingChatClient base class, with SemanticRoutingChatClient as a concrete semantic-routing implementation. Separately, the abstract FailoverChatClient specialization and its concrete OrderedFailoverChatClient implementation add failover routing.
• AI Evaluation: The generated report gains redesigned Overview, Cases, History, and Comparison views.
• ASP.NET Core and HTTP diagnostics: The release adds HTTP request latency log enrichment and fixes configuration binding, response-body logging, request-path redaction, and resilience package version handling.
• Source-generated logging and service discovery: Fixes cover classification type qualification, thread-local state cleanup, and DNS query suffix handling.

Experimental API Changes

New Experimental APIs

• New experimental API: HTTP request latency log enrichment (EXTEXP0013) #7602
• New experimental API: Chat client routing and failover (MEAI001) #7662

What's Changed

AI (Microsoft.Extensions.AI, Microsoft.Extensions.AI.Abstractions, and Microsoft.Extensions.AI.OpenAI)

• Add extensible chat client routing #7662 by @joshuajyue (co-authored by @Copilot)
• Pass the request's options to the selected client #7685 by @joshuajyue (co-authored by @jozkee @Copilot)
• AI.Abstractions: fix ExcludeFromSchema dropped under concurrent AIFunction creation #7677 by @jozkee (co-authored by @Copilot)
• Cap OpenAI dependency version (b10f9c0) by @jeffhandley (co-authored by @Copilot)

Note: Microsoft.Extensions.AI.OpenAI constrains its dependency for OpenAI to 2.12.x, preventing OpenAI updates to 2.13.0+ due to an incompatibility. We expect to release Microsoft.Extensions.AI.OpenAI version 10.9.1 during the week of August 17 to address this issue.

HTTP Resilience and Diagnostics (Microsoft.Extensions.Http.Resilience and Microsoft.Extensions.Http.Diagnostics)

• Fix Grpc.Net.ClientFactory version range check - Fixes #7565 #7566 by @Ghost93
• Fix response body logging under debugger #7678 by @Rimobul
• Redact outgoing path when route is unknown #7687 by @Rimobul
• Fix HTTP client logging config binding #7691 by @Rimobul

ASP.NET Core Extensions (Microsoft.AspNetCore.Diagnostics.Middleware)

• Rename HttpLatencyTelemetry extensions class and drop redundant TFM guard #7645 by @EasyL0ver (co-authored by @Copilot)
• Add HTTP request latency log enricher (experimental) #7602 by @EasyL0ver (co-authored by @Copilot)

Logging Source Generator (Microsoft.Gen.Logging)

• [Microsoft.Gen.Logging] Clear thread-local state when logging throws #7682 by @Rimobul
• [Microsoft.Gen.Logging] Fully qualify classification types #7689 by @Rimobul

AI Evaluation (Microsoft.Extensions.AI.Evaluation.Reporting)

• [Microsoft.Extensions.AI.Evaluation.Reporting] Evaluation report redesign #7609 by @grafanaKibana

Project Templates (Microsoft.McpServer.ProjectTemplates)

• Remove MCP server project template #7680 by @jeffhandley (co-authored by @Copilot)

Note: The MCP server project template was migrated to the dotnet/aspnetcore repository, and it is now included in the .NET 10 and .NET 11 SDKs.

Service Discovery (Microsoft.Extensions.ServiceDiscovery.Dns)

• Fix DNS SRV provider ignoring query suffix #7688 by @Rimobul (co-authored by @Copilot)

Test Improvements

• Update Microsoft.Data.SqlClient test dependency (aaea3c8) by @jeffhandley (co-authored by @Copilot)

Repository Infrastructure Updates

• [main] Update dependencies from dotnet/arcade #7621
• Merge release/10.8 into main #7632 by @jeffhandley (co-authored by @jozkee @Copilot)
• Add agentic workflows that keep Microsoft.Extensions.AI aligned with OpenTelemetry GenAI semantic-conventions #7611 by @jeffhandley (co-authored by @Copilot)
• Bump brace-expansion, eslint and tfx-cli in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript #7648
• Add a release-manager agent for the dotnet/extensions release process #7643 by @jeffhandley (co-authored by @Copilot)
• Bump CommunityToolkit.VectorData package baselines to 1.0.0 / 1.0.0-preview #7651 by @adamsitnik (co-authored by @Copilot)
• Incorporate servicing release experience into release-manager playbooks #7656 by @jeffhandley (co-authored by @Copilot)
• Bump dotnet-reportgenerator-globaltool from 5.5.10 to 5.5.11 #7666
• Bump adm-zip and azure-pipelines-task-lib in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript/azure-devops-report/tasks/PublishAIEvaluationReport #7652
• Bump postcss from 8.5.15 to 8.5.23 in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript #7660
• Bump PowerShell from 7.6.3 to 7.6.4 #7650
• [main] Update dependencies from dotnet/arcade #7644
• [release-manager] Require package dependency closure for releases #7693 by @jeffhandley (co-authored by @Copilot)
• Optionally allow official builds to publish VSIX extension. #7692 by @peterwald
• [main] Update dependencies from dotnet/arcade #7690

Acknowledgements

• @EasyL0ver made their first contribution in #7602
• @Ghost93 made their first contribution in #7566
• @grafanaKibana made their first contribution in #7609
• @Rimobul made their first contribution in #7678
• @joshuajyue made their first contribution in #7662
• @Ghost93 submitted issue #7565 (resolved by #7566)
• @grafanaKibana submitted issue #7593 (resolved by #7609)
• @jredgard submitted issue #7675 (resolved by #7677)
• @viorelbuligadev submitted issue #7649 (resolved by #7678)
• @joshuajyue submitted issue #7647 (resolved by #7662)
• @jboelter submitted issue #7634 (resolved by #7682)
• @dmeeze submitted issue #7157 (resolved by #7689)
• @ssmelov submitted issue #7536 (resolved by #7687)
• @Marcus-Kanon submitted issue #7551 (resolved by #7691)
• @vermilion submitted issue #7175 (resolved by #7688)
• @evgenyfedorov2 @wtgodbe @shyamnamboodiripad @dariusclay @iliar-turdushev @mariamgerges @PranavSenthilnathan @rafal-mz @tannergooding @tarekgh reviewed pull requests

Full Changelog: v10.8.4...v10.9.0

Packages in this release

The Microsoft.Agents.AI.ProjectTemplates package is not included in this release.