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Updated Microsoft.Extensions.AI.Abstractions from 10.8.3 to 10.10.0.

Release notes

Sourced from Microsoft.Extensions.AI.Abstractions's releases.

10.10.0

This month's release focuses on AI package reliability: closing gaps in evaluation scoring, hardening OpenAI image-option handling, and removing the deprecated OpenAI Assistants API support.

Experimental API Changes

Removed Experimental APIs

  • OpenAI Assistants experimental APIs removed (was experimental under OPENAI001) #​7724

What's Changed

AI

  • Remove OpenAI Assistants API support #​7724 by @​jozkee (co-authored by @​Copilot)
  • Update OpenAI package version to 2.13.0 #​7726 by @​jozkee
  • OpenAI: Avoid null implicit conversions for image options #​7727 by @​jozkee (co-authored by @​Copilot)

AI Evaluation

  • Fail closed when a quality metric has no valid score #​7735 by @​thaildhe172591
  • Validate path segments in Azure storage result store and response cache #​7718 by @​Lroca88

Repository Infrastructure Updates

  • Add TfxInstaller for publishing #​7695 by @​peterwaltonwork
  • Bump PowerShell from 7.6.4 to 7.6.5 #​7702
  • [Infrastructure] Update vulnerable npm dependencies #​7705 by @​wtgodbe
  • Add Node installation for TfxInstaller #​7703 by @​peterwaltonwork
  • Publish VSIX using publish task instead of output #​7711 by @​peterwaltonwork
  • Bump dotnet-coverage from 18.9.0 to 18.10.0 #​7708
  • Do not validate extension during publish step #​7725 by @​peterwaltonwork
  • Add skill for upgrading OpenAI #​7728 by @​jozkee
  • Fix source indexer stage #​7694 by @​jjonescz

Acknowledgements

  • @​Lroca88 made their first contribution in #​7718
  • @​thaildhe172591 made their first contribution in #​7735
  • @​ANcpLua submitted issue #​7665 (resolved by #​7735)
  • @​jeffhandley @​peterwald @​shyamnamboodiripad reviewed pull requests

Full Changelog: dotnet/extensions@v10.9.0...v10.10.0

10.9.0

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)

... (truncated)

10.8.4

This servicing update refreshes the .NET AI project templates ahead of the July 30, 2026 retirement of GitHub Models — removing the GitHub Models provider option and updating template dependencies.

As a result, both the AI Chat Web (aichatweb) and AI Agent Web API (aiagent-webapi) templates now require the AI service provider to be chosen explicitly via --provider; there is no longer a default. One of the following must be selected:

  • --provider azureopenai — Azure OpenAI
  • --provider ollama — Ollama (for local development)
  • --provider openai — OpenAI Platform

Packages in this release

Package Version
Microsoft.Extensions.AI.Templates 10.8.4-preview.3.26379.3
Microsoft.Agents.AI.ProjectTemplates 1.13.0-preview.1.26379.3

What's Changed

Project templates

  • Removed the GitHub Models provider from the AI Chat Web and AI Agent Web API templates, ahead of GitHub Models being fully retired on July 30, 2026. The --provider option is now required with no default (#​7667).
  • Updated AI template dependencies — bumped Aspire.Hosting.AppHost to 13.4.6 and CommunityToolkit.VectorData.SqliteVec to 1.0.0-preview.4 (aligned System.Linq.AsyncEnumerable to 10.0.9), replacing earlier workaround package pins (#​7639).

Full Changelog

Commits viewable in compare view.

Updated Microsoft.Extensions.AI.OpenAI from 10.8.3 to 10.10.0.

Release notes

Sourced from Microsoft.Extensions.AI.OpenAI's releases.

10.10.0

This month's release focuses on AI package reliability: closing gaps in evaluation scoring, hardening OpenAI image-option handling, and removing the deprecated OpenAI Assistants API support.

Experimental API Changes

Removed Experimental APIs

  • OpenAI Assistants experimental APIs removed (was experimental under OPENAI001) #​7724

What's Changed

AI

  • Remove OpenAI Assistants API support #​7724 by @​jozkee (co-authored by @​Copilot)
  • Update OpenAI package version to 2.13.0 #​7726 by @​jozkee
  • OpenAI: Avoid null implicit conversions for image options #​7727 by @​jozkee (co-authored by @​Copilot)

AI Evaluation

  • Fail closed when a quality metric has no valid score #​7735 by @​thaildhe172591
  • Validate path segments in Azure storage result store and response cache #​7718 by @​Lroca88

Repository Infrastructure Updates

  • Add TfxInstaller for publishing #​7695 by @​peterwaltonwork
  • Bump PowerShell from 7.6.4 to 7.6.5 #​7702
  • [Infrastructure] Update vulnerable npm dependencies #​7705 by @​wtgodbe
  • Add Node installation for TfxInstaller #​7703 by @​peterwaltonwork
  • Publish VSIX using publish task instead of output #​7711 by @​peterwaltonwork
  • Bump dotnet-coverage from 18.9.0 to 18.10.0 #​7708
  • Do not validate extension during publish step #​7725 by @​peterwaltonwork
  • Add skill for upgrading OpenAI #​7728 by @​jozkee
  • Fix source indexer stage #​7694 by @​jjonescz

Acknowledgements

  • @​Lroca88 made their first contribution in #​7718
  • @​thaildhe172591 made their first contribution in #​7735
  • @​ANcpLua submitted issue #​7665 (resolved by #​7735)
  • @​jeffhandley @​peterwald @​shyamnamboodiripad reviewed pull requests

Full Changelog: dotnet/extensions@v10.9.0...v10.10.0

10.9.0

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)

... (truncated)

10.8.4

This servicing update refreshes the .NET AI project templates ahead of the July 30, 2026 retirement of GitHub Models — removing the GitHub Models provider option and updating template dependencies.

As a result, both the AI Chat Web (aichatweb) and AI Agent Web API (aiagent-webapi) templates now require the AI service provider to be chosen explicitly via --provider; there is no longer a default. One of the following must be selected:

  • --provider azureopenai — Azure OpenAI
  • --provider ollama — Ollama (for local development)
  • --provider openai — OpenAI Platform

Packages in this release

Package Version
Microsoft.Extensions.AI.Templates 10.8.4-preview.3.26379.3
Microsoft.Agents.AI.ProjectTemplates 1.13.0-preview.1.26379.3

What's Changed

Project templates

  • Removed the GitHub Models provider from the AI Chat Web and AI Agent Web API templates, ahead of GitHub Models being fully retired on July 30, 2026. The --provider option is now required with no default (#​7667).
  • Updated AI template dependencies — bumped Aspire.Hosting.AppHost to 13.4.6 and CommunityToolkit.VectorData.SqliteVec to 1.0.0-preview.4 (aligned System.Linq.AsyncEnumerable to 10.0.9), replacing earlier workaround package pins (#​7639).

Full Changelog

Commits viewable in compare view.

Updated Microsoft.Extensions.DependencyInjection.Abstractions from 10.0.10 to 10.0.12.

Release notes

Sourced from Microsoft.Extensions.DependencyInjection.Abstractions's releases.

No release notes found for this version range.

Commits viewable in compare view.

Updated Microsoft.Extensions.Http.Resilience from 10.8.0 to 10.10.0.

Release notes

Sourced from Microsoft.Extensions.Http.Resilience's releases.

10.10.0

This month's release focuses on AI package reliability: closing gaps in evaluation scoring, hardening OpenAI image-option handling, and removing the deprecated OpenAI Assistants API support.

Experimental API Changes

Removed Experimental APIs

  • OpenAI Assistants experimental APIs removed (was experimental under OPENAI001) #​7724

What's Changed

AI

  • Remove OpenAI Assistants API support #​7724 by @​jozkee (co-authored by @​Copilot)
  • Update OpenAI package version to 2.13.0 #​7726 by @​jozkee
  • OpenAI: Avoid null implicit conversions for image options #​7727 by @​jozkee (co-authored by @​Copilot)

AI Evaluation

  • Fail closed when a quality metric has no valid score #​7735 by @​thaildhe172591
  • Validate path segments in Azure storage result store and response cache #​7718 by @​Lroca88

Repository Infrastructure Updates

  • Add TfxInstaller for publishing #​7695 by @​peterwaltonwork
  • Bump PowerShell from 7.6.4 to 7.6.5 #​7702
  • [Infrastructure] Update vulnerable npm dependencies #​7705 by @​wtgodbe
  • Add Node installation for TfxInstaller #​7703 by @​peterwaltonwork
  • Publish VSIX using publish task instead of output #​7711 by @​peterwaltonwork
  • Bump dotnet-coverage from 18.9.0 to 18.10.0 #​7708
  • Do not validate extension during publish step #​7725 by @​peterwaltonwork
  • Add skill for upgrading OpenAI #​7728 by @​jozkee
  • Fix source indexer stage #​7694 by @​jjonescz

Acknowledgements

  • @​Lroca88 made their first contribution in #​7718
  • @​thaildhe172591 made their first contribution in #​7735
  • @​ANcpLua submitted issue #​7665 (resolved by #​7735)
  • @​jeffhandley @​peterwald @​shyamnamboodiripad reviewed pull requests

Full Changelog: dotnet/extensions@v10.9.0...v10.10.0

10.9.0

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)

... (truncated)

10.8.4

This servicing update refreshes the .NET AI project templates ahead of the July 30, 2026 retirement of GitHub Models — removing the GitHub Models provider option and updating template dependencies.

As a result, both the AI Chat Web (aichatweb) and AI Agent Web API (aiagent-webapi) templates now require the AI service provider to be chosen explicitly via --provider; there is no longer a default. One of the following must be selected:

  • --provider azureopenai — Azure OpenAI
  • --provider ollama — Ollama (for local development)
  • --provider openai — OpenAI Platform

Packages in this release

Package Version
Microsoft.Extensions.AI.Templates 10.8.4-preview.3.26379.3
Microsoft.Agents.AI.ProjectTemplates 1.13.0-preview.1.26379.3

What's Changed

Project templates

  • Removed the GitHub Models provider from the AI Chat Web and AI Agent Web API templates, ahead of GitHub Models being fully retired on July 30, 2026. The --provider option is now required with no default (#​7667).
  • Updated AI template dependencies — bumped Aspire.Hosting.AppHost to 13.4.6 and CommunityToolkit.VectorData.SqliteVec to 1.0.0-preview.4 (aligned System.Linq.AsyncEnumerable to 10.0.9), replacing earlier workaround package pins (#​7639).

Full Changelog

10.8.3

Packages in this release

Package Version
Microsoft.Extensions.AI 10.8.3
Microsoft.Extensions.AI.Abstractions 10.8.3
Microsoft.Extensions.AI.OpenAI 10.8.3

Experimental API Changes

Experimental API behavior updates

  • Updated serialization behavior for experimental ToolApprovalRequestContent.RequiresConfirmation so it no longer leaks into consumer source-generated AIContent JSON metadata unless approval APIs are intentionally used (#​7659).

What's Changed

AI abstractions and serialization

  • Fixed MEAI001 leakage from RequiresConfirmation in source-generated AIContent contexts by using an internal JSON-included backing member while keeping the public experimental member ignored for source-generation metadata (#​7659).

Test Improvements

  • Added stabilization regression coverage to verify consumer source-generated List<AIContent> contexts compile and round-trip without requiring MEAI001 suppression (#​7659).

Full Changelog

10.8.2

This servicing release updates Microsoft.Extensions.VectorData.ConformanceTests to 10.8.2 and includes targeted test framework migration fixes.

Packages in this release

Package Version Note
Microsoft.Extensions.VectorData.Abstractions 10.8.2 Published August 7, 2026
Microsoft.Extensions.VectorData.ConformanceTests 10.8.2

Update: August 7, 2026
The Microsoft.Extensions.VectorData.Abstractions package was initially excluded from this release by mistake. Because Microsoft.Extensions.VectorData.ConformanceTests has a dependency on Microsoft.Extensions.VectorData.Abstractions, that led to failures when updating to Microsoft.Extensions.VectorData.ConformanceTests 10.8.2.

Microsoft.Extensions.VectorData.Abstractions was published August 7, 2026 to resolve that issue.

What's Changed

AI

  • Move Microsoft.Extensions.VectorData.ConformanceTests to xUnit 3 #​7636 by @​adamsitnik (co-authored by @​Copilot)

Acknowledgements

  • @​roji reviewed pull requests

Full Changelog: dotnet/extensions@v10.8.1...v10.8.2

10.8.1

This servicing release updates the Microsoft.Extensions.AI, Microsoft.Extensions.AI.Abstractions, and Microsoft.Extensions.AI.OpenAI packages to 10.8.1 with two targeted fixes: correct tool-call/tool-result ordering when resuming approval-gated functions with service-managed chat history, and preservation of the OpenAI Responses reasoning item id for stateless (store=false) encrypted reasoning.

Packages in this release

Package Version
Microsoft.Extensions.AI 10.8.1
Microsoft.Extensions.AI.Abstractions 10.8.1
Microsoft.Extensions.AI.OpenAI 10.8.1

What's Changed

AI

  • Fix FICC tool_calls/tool ordering with approvals and service-managed chat history #​7617 by @​westey-m
  • Roundtrip OpenAI Responses reasoning item id for stateless (store=false) encrypted reasoning #​7629 by @​rogerbarreto (co-authored by @​tarekgh)

Acknowledgements

  • @​jozkee reviewed pull requests

Full Changelog: dotnet/extensions@v10.8.0...v10.8.1

Commits viewable in compare view.

Updated Microsoft.Extensions.ServiceDiscovery from 10.8.0 to 10.10.0.

Release notes

Sourced from Microsoft.Extensions.ServiceDiscovery's releases.

10.10.0

This month's release focuses on AI package reliability: closing gaps in evaluation scoring, hardening OpenAI image-option handling, and removing the deprecated OpenAI Assistants API support.

Experimental API Changes

Removed Experimental APIs

  • OpenAI Assistants experimental APIs removed (was experimental under OPENAI001) #​7724

What's Changed

AI

  • Remove OpenAI Assistants API support #​7724 by @​jozkee (co-authored by @​Copilot)
  • Update OpenAI package version to 2.13.0 #​7726 by @​jozkee
  • OpenAI: Avoid null implicit conversions for image options #​7727 by @​jozkee (co-authored by @​Copilot)

AI Evaluation

  • Fail closed when a quality metric has no valid score #​7735 by @​thaildhe172591
  • Validate path segments in Azure storage result store and response cache #​7718 by @​Lroca88

Repository Infrastructure Updates

  • Add TfxInstaller for publishing #​7695 by @​peterwaltonwork
  • Bump PowerShell from 7.6.4 to 7.6.5 #​7702
  • [Infrastructure] Update vulnerable npm dependencies #​7705 by @​wtgodbe
  • Add Node installation for TfxInstaller #​7703 by @​peterwaltonwork
  • Publish VSIX using publish task instead of output #​7711 by @​peterwaltonwork
  • Bump dotnet-coverage from 18.9.0 to 18.10.0 #​7708
  • Do not validate extension during publish step #​7725 by @​peterwaltonwork
  • Add skill for upgrading OpenAI #​7728 by @​jozkee
  • Fix source indexer stage #​7694 by @​jjonescz

Acknowledgements

  • @​Lroca88 made their first contribution in #​7718
  • @​thaildhe172591 made their first contribution in #​7735
  • @​ANcpLua submitted issue #​7665 (resolved by #​7735)
  • @​jeffhandley @​peterwald @​shyamnamboodiripad reviewed pull requests

Full Changelog: dotnet/extensions@v10.9.0...v10.10.0

10.9.0

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)

... (truncated)

10.8.4

This servicing update refreshes the .NET AI project templates ahead of the July 30, 2026 retirement of GitHub Models — removing the GitHub Models provider option and updating template dependencies.

As a result, both the AI Chat Web (aichatweb) and AI Agent Web API (aiagent-webapi) templates now require the AI service provider to be chosen explicitly via --provider; there is no longer a default. One of the following must be selected:

  • --provider azureopenai — Azure OpenAI
  • --provider ollama — Ollama (for local development)
  • --provider openai — OpenAI Platform

Packages in this release

Package Version
Microsoft.Extensions.AI.Templates 10.8.4-preview.3.26379.3
Microsoft.Agents.AI.ProjectTemplates 1.13.0-preview.1.26379.3

What's Changed

Project templates

  • Removed the GitHub Models provider from the AI Chat Web and AI Agent Web API templates, ahead of GitHub Models being fully retired on July 30, 2026. The --provider option is now required with no default (#​7667).
  • Updated AI template dependencies — bumped Aspire.Hosting.AppHost to 13.4.6 and CommunityToolkit.VectorData.SqliteVec to 1.0.0-preview.4 (aligned System.Linq.AsyncEnumerable to 10.0.9), replacing earlier workaround package pins (#​7639).

Full Changelog

10.8.3

Packages in this release

Package Version
Microsoft.Extensions.AI 10.8.3
Microsoft.Extensions.AI.Abstractions 10.8.3
Microsoft.Extensions.AI.OpenAI 10.8.3

Experimental API Changes

Experimental API behavior updates

  • Updated serialization behavior for experimental ToolApprovalRequestContent.RequiresConfirmation so it no longer leaks into consumer source-generated AIContent JSON metadata unless approval APIs are intentionally used (#​7659).

What's Changed

AI abstractions and serialization

  • Fixed MEAI001 leakage from RequiresConfirmation in source-generated AIContent contexts by using an internal JSON-included backing member while keeping the public experimental member ignored for source-generation metadata (#​7659).

Test Improvements

  • Added stabilization regression coverage to verify consumer source-generated List<AIContent> contexts compile and round-trip without requiring MEAI001 suppression (#​7659).

Full Changelog

10.8.2

This servicing release updates Microsoft.Extensions.VectorData.ConformanceTests to 10.8.2 and includes targeted test framework migration fixes.

Packages in this release

Package Version Note
Microsoft.Extensions.VectorData.Abstractions 10.8.2 Published August 7, 2026
Microsoft.Extensions.VectorData.ConformanceTests 10.8.2

Update: August 7, 2026
The Microsoft.Extensions.VectorData.Abstractions package was initially excluded from this release by mistake. Because Microsoft.Extensions.VectorData.ConformanceTests has a dependency on Microsoft.Extensions.VectorData.Abstractions, that led to failures when updating to Microsoft.Extensions.VectorData.ConformanceTests 10.8.2.

Microsoft.Extensions.VectorData.Abstractions was published August 7, 2026 to resolve that issue.

What's Changed

AI

  • Move Microsoft.Extensions.VectorData.ConformanceTests to xUnit 3 #​7636 by @​adamsitnik (co-authored by @​Copilot)

Acknowledgements

  • @​roji reviewed pull requests

Full Changelog: dotnet/extensions@v10.8.1...v10.8.2

10.8.1

This servicing release updates the Microsoft.Extensions.AI, Microsoft.Extensions.AI.Abstractions, and Microsoft.Extensions.AI.OpenAI packages to 10.8.1 with two targeted fixes: correct tool-call/tool-result ordering when resuming approval-gated functions with service-managed chat history, and preservation of the OpenAI Responses reasoning item id for stateless (store=false) encrypted reasoning.

Packages in this release

Package Version
Microsoft.Extensions.AI 10.8.1
Microsoft.Extensions.AI.Abstractions 10.8.1
Microsoft.Extensions.AI.OpenAI 10.8.1

What's Changed

AI

  • Fix FICC tool_calls/tool ordering with approvals and service-managed chat history #​7617 by @​westey-m
  • Roundtrip OpenAI Responses reasoning item id for stateless (store=false) encrypted reasoning #​7629 by @​rogerbarreto (co-authored by @​tarekgh)

Acknowledgements

  • @​jozkee reviewed pull requests

Full Changelog: dotnet/extensions@v10.8.0...v10.8.1

Commits viewable in compare view.

Updated Microsoft.NET.Test.Sdk from 18.8.1 to 18.10.1.

Release notes

Sourced from Microsoft.NET.Test.Sdk's releases.

18.10.1

What's Changed

Full Changelog: microsoft/vstest@v18.10.0...v18.10.1

18.10.0

What's Changed

Full Changelog: microsoft/vstest@v18.9.0...v18.10.0

18.9.0

What's Changed

New Contributors

Full Changelog: microsoft/vstest@v18.8.0...v18.9.0

Commits viewable in compare view.

Updated NSubstitute from 6.0.0 to 6.2.0.

Release notes

Sourced from NSubstitute's releases.

6.2.0

NSubstitute v6.2.0

This release improves generic call matching (#​989, #​974, #​990). Thanks to @​zvirja and @​JMolenkamp for fixes this.
We've also switched to using trusted nuget publishing linked to GitHub Releases. (#​987, @​zvirja)

What's Changed

Full Changelog: nsubstitute/NSubstitute@v6.1.0...v6.2.0

6.1.0

NSubstitute v6.1.0

This release reverts nullability support introduced in 6.0. This change caused a number of problems for callers (#​973, #​976), and trying to resolve these (#​976) revealed the need for more fundamental changes to NSubstitute to effectively support this. As a result, nullability is again disabled for public API. Huge thanks to @​jdb0123, @​Romfos, and @​Moha-sami for their PRs addressing this, and thanks for all those who raised issues. We also humbly award @​zvirja with one unlimited "I told you so" pass to use as he sees fit.

What's Changed

New Contributors

Full Changelog: nsubstitute/NSubstitute@v6.0.0...v6.1.0

Commits viewable in compare view.

Updated OpenTelemetry.Exporter.OpenTelemetryProtocol from 1.17.0 to 1.19.1.

Release notes

Sourced from OpenTelemetry.Exporter.OpenTelemetryProtocol's releases.

1.19.1

For highlights and announcements pertaining to this release see: Release Notes > 1.19.1.

The following changes are from the previous release 1.19.0.

1.19.1-rc.1

The following changes are from the previous release 1.19.0.

1.19.1-beta.1

The following changes are from the previous release 1.19.0-beta.1.

1.19.0

For highlights and announcements pertaining to this release see: Release Notes > 1.19.0.

The following changes are from the previous release 1.18.0.

  • NuGet: OpenTelemetry v1.19.0

    • Added Schema URL to internally created Resource instances.
      (#​7726)

    • Reduced allocations when formatting self-diagnostics events with up to three parameters.
      (#​7730)

    • Added AlwaysRecordSampler.
      (#​7695)

    • Fixed CircularBufferBuckets so the first delta histogram insertion after a reset does not result in an unnecessary scale reduction.
      (#​7749)

    • Improved wildcard source/meter name matching to avoid excessive matching time at runtime.
      (#​7760)

    • Fixed lazy logger provider builds after a failure from reusing partially initialized provider state.
      (#​7761)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Api v1.19.0

    • Reduced allocations when creating log record attributes from an array.
      (#​7699)

    • Reduced allocations when setting baggage through the params overload.
      (#​7697)

    • Reduced allocations when constructing SpanAttributes from an array.
      (#​7698)

    • 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.
      (#​7756)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.19.0

    No notable changes.

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Exporter.Console v1.19.0

... (truncated)

1.19.0-rc.1

The following changes are from the previous release 1.18.0.

  • NuGet: OpenTelemetry v1.19.0-rc.1

    • Added Schema URL to internally created Resource instances.
      (#​7726)

    • Reduced allocations when formatting self-diagnostics events with up to three parameters.
      (#​7730)

    • Added AlwaysRecordSampler.
      (#​7695)

    • Fixed CircularBufferBuckets so the first delta histogram insertion after a reset does not result in an unnecessary scale reduction.
      (#​7749)

    • Improved wildcard source/meter name matching to avoid excessive matching time at runtime.
      (#​7760)

    • Fixed lazy logger provider builds after a failure from reusing partially initialized provider state.
      (#​7761)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Api v1.19.0-rc.1

    • Reduced allocations when creating log record attributes from an array.
      (#​7699)

    • Reduced allocations when setting baggage through the params overload.
      (#​7697)

    • Reduced allocations when constructing SpanAttributes from an array.
      (#​7698)

    • 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.
      (#​7756)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.19.0-rc.1

    No notable changes.

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Exporter.Console v1.19.0-rc.1

    • 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.
      (#​7679)
      ... (truncated)

1.19.0-beta.1

The following changes are from the previous release 1.18.0-beta.1.

  • NuGet: OpenTelemetry.Exporter.Prometheus.AspNetCore v1.19.0-beta.1

    • Breaking Change The PrometheusTranslationStrategy enum was renamed to PrometheusAspNetCoreTranslationStrategy.
      (#​7751)

    • Fixed OpenMetrics _created series being emitted for metric points with a default start time.
      (#​7754)

    • Prometheus text/OpenMetrics escaping of label values, label names and help text is now more efficient.
      (#​7758)

    • 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.
      (#​7757)

    • Updated OpenTelemetry core component version(s) to 1.19.0.
      (#​7785)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Exporter.Prometheus.HttpListener v1.19.0-beta.1

    • Breaking Change The PrometheusTranslationStrategy enum was renamed to PrometheusHttpListenerTranslationStrategy.
      (#​7751)

    • Fixed OpenMetrics _created series being emitted for metric points with a default start time.
      (#​7754)

    • Prometheus text/OpenMetrics escaping of label values, label names and help text is now more efficient.
      (#​7758)

    • Added PrometheusHttpListenerOptions.ScrapeResponseTimeoutMilliseconds (default 60000) which bounds how long a scrape request waits for its response. X-Prometheus-Scrape-Timeout-Seconds request header values may only shorten this limit. The limit bounds the request's wait only: a metrics collection already running when it is reached is not cancelled and continues running in the background.
      (#​7757)

    • Updated OpenTelemetry core component version(s) to 1.19.0.
      (#​7785)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Shims.OpenTracing v1.19.0-beta.1

    • Updated OpenTelemetry core component version(s) to 1.19.0.
      (#​7785)

    See CHANGELOG for details.

1.18.0

For highlights and announcements pertaining to this release see: Release Notes > 1.18.0.

The following changes are from the previous release 1.17.0.

  • NuGet: OpenTelemetry v1.18.0

    • Fixed self-diagnostics log lines being silently dropped when an event message or parameter contained enough 3-byte UTF-8 characters to overflow the internal buffer estimate. Such content is now truncated.
      (#​7543)

    • Fixed activity creation throwing when multiple tracer providers return a sampler attribute with the same key.
      (#​7558)

    • Added the otel.sdk.processor.log.processed SDK self-observability metric.
      (#​7486)

    • Added the otel.sdk.processor.span.processed SDK self-observability metric.
      (#​7598)

    • BatchActivityExportProcessor and SimpleActivityExportProcessor no longer forward spans to the exporter once Shutdown has been called, and BatchActivityExportProcessor.Shutdown now waits for in-flight OnEnd calls to finish enqueueing before flushing.
      (#​7598)

    • Fix logger, meter and tracer providers leaking background threads if an exception is thrown by their constructor after resource creation.
      (#​7615)

    • CircularBufferBuckets.Copy optimized to use bulk array copies.
      (#​7670)

    • Restored configured MaxScale after delta exponential histogram collection.
      (#​7671)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Api v1.18.0

    • Avoid formatting exceptions and creating exception attributes when RecordException is called on a span that is not recorded.
      (#​7669)

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Api.ProviderBuilderExtensions v1.18.0

    No notable changes.

    See CHANGELOG for details.

  • NuGet: OpenTelemetry.Exporter.Console v1.18.0

    • Added support for serializing attribute values that are key/value lists (IEnumerable<KeyValuePair<string, object?>>). These attributes will be serialized as JSON objects.
      (#​7015)

... (truncated)

1.18.0-rc.1

The following changes are from the previous release 1.17.0.

  • NuGet: OpenTelemetry v1.18.0-rc.1

    • Fixed self-diagnostics log lines being silently dropped when an event message or parameter contained enough 3-byte UTF-8 characters to overflow the internal buffer estimate. Such content is now truncated.
      (#​7543)

    • Fixed activity creation throwing when multiple tracer providers return a sampler attribute with the same key.
      (#​7558)

    • Added the otel.sdk.processor.log.processed SDK self-observability metric.
      (#​7486)

    • Added the otel.sdk.processor.span.processed SDK self-observability metric.
      (#​7598)

    • BatchActivityExportProcessor and SimpleActivityExportProcessor no longer forward spans to the exporter once Shutdown has been called, and BatchActivityExportProcessor.Shutdown now waits for in-flight OnEnd calls to finish enqueueing before flushing.
      (#​7598)

    • Fix logger, meter and tracer providers leaking background threads if an exception is thrown by their constructor after resource creation.
      ([#​7615](https://github...

Description has been truncated

Bumps Microsoft.Extensions.AI.Abstractions from 10.8.3 to 10.10.0
Bumps Microsoft.Extensions.AI.OpenAI from 10.8.3 to 10.10.0
Bumps Microsoft.Extensions.DependencyInjection.Abstractions from 10.0.10 to 10.0.12
Bumps Microsoft.Extensions.Http.Resilience from 10.8.0 to 10.10.0
Bumps Microsoft.Extensions.ServiceDiscovery from 10.8.0 to 10.10.0
Bumps Microsoft.NET.Test.Sdk from 18.8.1 to 18.10.1
Bumps NSubstitute from 6.0.0 to 6.2.0
Bumps OpenTelemetry.Exporter.OpenTelemetryProtocol from 1.17.0 to 1.19.1
Bumps OpenTelemetry.Extensions.Hosting from 1.17.0 to 1.19.1
Bumps OpenTelemetry.Instrumentation.AspNetCore from 1.17.0 to 1.19.0
Bumps OpenTelemetry.Instrumentation.Http from 1.17.0 to 1.19.0
Bumps OpenTelemetry.Instrumentation.Runtime from 1.17.0 to 1.19.0
Bumps PdfPig from 0.1.15 to 0.1.16
Bumps TngTech.ArchUnitNET.xUnitV3 from 0.13.3 to 0.13.4
Bumps WireMock.Net from 2.13.0 to 2.18.0
Bumps WolverineFx from 6.24.2 to 6.39.1
Bumps WolverineFx.FluentValidation from 6.24.2 to 6.39.1
Bumps WolverineFx.RuntimeCompilation from 6.24.2 to 6.39.1
Bumps xunit.runner.visualstudio from 3.1.5 to 4.0.0
Bumps xunit.v3 from 3.2.2 to 4.0.1

---
updated-dependencies:
- dependency-name: Microsoft.Extensions.AI.Abstractions
  dependency-version: 10.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: Microsoft.Extensions.AI.OpenAI
  dependency-version: 10.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: Microsoft.Extensions.DependencyInjection.Abstractions
  dependency-version: 10.0.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nuget-weekly
- dependency-name: Microsoft.Extensions.Http.Resilience
  dependency-version: 10.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: Microsoft.Extensions.ServiceDiscovery
  dependency-version: 10.10.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: Microsoft.NET.Test.Sdk
  dependency-version: 18.10.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: NSubstitute
  dependency-version: 6.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: OpenTelemetry.Exporter.OpenTelemetryProtocol
  dependency-version: 1.19.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: OpenTelemetry.Extensions.Hosting
  dependency-version: 1.19.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: OpenTelemetry.Instrumentation.AspNetCore
  dependency-version: 1.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: OpenTelemetry.Instrumentation.Http
  dependency-version: 1.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: OpenTelemetry.Instrumentation.Runtime
  dependency-version: 1.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: PdfPig
  dependency-version: 0.1.16
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nuget-weekly
- dependency-name: TngTech.ArchUnitNET.xUnitV3
  dependency-version: 0.13.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nuget-weekly
- dependency-name: WireMock.Net
  dependency-version: 2.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: WolverineFx
  dependency-version: 6.39.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: WolverineFx.FluentValidation
  dependency-version: 6.39.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: WolverineFx.RuntimeCompilation
  dependency-version: 6.39.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: nuget-weekly
- dependency-name: xunit.runner.visualstudio
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: nuget-weekly
- dependency-name: xunit.v3
  dependency-version: 4.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: nuget-weekly
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot added .NET Pull requests that update .NET code dependencies Pull requests that update a dependency file labels Sep 24, 2026
@github-actions
github-actions Bot enabled auto-merge (squash) September 24, 2026 00:16

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