What's Changed

• Bump version to 10.2.0 for next development cycle by @Copilot in #7105
• Add unit parameter to metric source generator by @mariamgerges in #7099
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #7111
• Fix expected conversation length in SummarizingChatReducer integration tests by @MackinnonBuck in #7119
• Fix build status badge in README.md by @akoeplinger in #7118
• Update AI changelogs for 10.1.0 by @stephentoub in #7123
• Merging internal changes into release/10.1 branch by @joperezr in #7127
• Bump glob from 11.0.1 to 11.1.0 in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript by @dependabot[bot] in #7052
• Fix markdown parser crash on inline HTML elements by @Copilot in #7131
• Fix IndexOutOfRangeException when parsing markdown tables without trailing pipes by @Copilot in #7133
• Merging changes from release/10.1 into main by @joperezr in #7128
• Remove nuget.exe by @ericstj in #7138
• Augment UsageDetails with cached / reasoning token counts by @stephentoub in #7122
• Expose ctors for setting AdditionalProperties on Hosted tools by @stephentoub in #7120
• Update to OpenAI 2.8.0 by @stephentoub in #7136
• Add DocumentTokenChunker by @KrystofS in #7093
• Skip tests by default in internal rolling builds by @Copilot in #7151
• Fix FunctionApprovalResponseContent to message mapping by @PederHP in #7152
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #7155
• Add support for custom headers in HostedMcpServerTool by @echapmanFromBunnings in #7053
• AmbientMetadata.Build - release to GA by @evgenyfedorov2 in #7161
• Overhaul project template builds and testing by @jeffhandley in #7113
• Update Microsoft.Agents.AI.ProjectTemplates to latest Agent Framework by @jeffhandley in #7167
• Introduce local vs. remote mcpserver template option by @jeffhandley in #7168
• Fix rolling build pipeline by @jeffhandley in #7171
• Add Reason property to FunctionApprovalResponseContent for custom rejection messages by @Copilot in #7140
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #7180
• Fix ToChatResponse to use first appropriate CreatedAt instead of last by @Copilot in #7193
• Add support for InputImageUrl via reflection in OpenAIResponsesChatClient by @Copilot in #7195

New Contributors

• @mariamgerges made their first contribution in #7099
• @akoeplinger made their first contribution in #7118
• @PederHP made their first contribution in #7152
• @echapmanFromBunnings made their first contribution in #7053

Full Changelog: v10.1...v10.2.0

What's Changed

• [MEDI] start producing NuGet packages by @adamsitnik in #7016
• Deprecate AddServiceLogEnricher method with its overloads, introduce replacements by @evgenyfedorov2 in #6529
• Update version numbers in AI changelogs by @stephentoub in #7008
• HttpDependencyMetadataResolver class for the custom downstream dependency metadata resolution by @rainsxng in #6880
• [MEDI] Don't stop document processing on enricher error by @adamsitnik in #7005
• [MEDI] add PackageTags by @adamsitnik in #7022
• Add a new Microsoft.Agents.AI.Templates package with an aiagent-webapi project template by @jeffhandley in #7014
• Add MarkItDownMcpReader for MCP server support by @Copilot in #7025
• Image generation tool by @ericstj in #6749
• Make MEAI packages use 10.0 runtime packages by @ericstj in #7028
• When using latest .NET packages, force System.Numerics.Tensors to 10.0 (for MEAI) by @jeffhandley in #7031
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #7032
• Use DataContent from Microsoft.Extensions.AI for data URI generation by @Copilot in #7027
• Add AmbientMetadata.Build component by @evgenyfedorov2 in #6623
• Introduce SectionChunker by @KrystofS in #7015
• Use Microsoft.Extensions.DataIngestion in AI Chat Web template by @MackinnonBuck in #7023
• Add Agent Framework DevUI into the aiagent-webapi template by @jeffhandley in #7026
• Adjust cgroupv2 drive format check for .NET 10 and higher by @KeterSCP in #6877
• Replace custom IAsyncEnumerable extensions with System.Linq.AsyncEnumerable by @Copilot in #7039
• Add Image Detail support for Image DataContent to OpenAIResponsesChatClient. by @rogerbarreto in #7042
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #7043
• Update to OpenAI 2.7.0 by @stephentoub in #7044
• Merge changes from internal by @joperezr in #7038
• Merge rel10 by @joperezr in #7047
• Disable AzDO dependabot by @mmitche in #7045
• Bump version to 10.1.0 for next development cycle by @Copilot in #7018
• Update AI Chat Web template to Aspire 13.0.0 by @Copilot in #7036
• Fix flaky SetupSequence tests by @amadeuszl in #7051
• Update AI changelogs by @stephentoub in #7037
• Update project template dependencies by @jeffhandley in #7064
• Reset Microsoft.Agents.AI.ProjectTemplates versioning by @jeffhandley in #7034
• Fix operator precedence bug in ValidateSchemaDocument causing rejection of valid boolean schemas by @Copilot in #7066
• Use JsonElement.Parse for JsonElement conversions in AI libraries by @Copilot in #7067
• .NET: Change type of ContinuationToken properties by @SergeyMenshykh in #7050
• Fix OpenAIEmbeddingGenerator to handle missing usage data by @stephentoub in #7074
• Add AIJsonSchemaCreateOptions.ParameterDescriptions by @stephentoub in #7068
• Improve FunctionInvokingChatClient's awareness of agents by @stephentoub in #7030
• Add Kubernetes based Resource Monitoring by @amadeuszl in #6748
• Ensure all ResponseItems are yielded in AIContent by @crickman in #7063
• Add CHANGELOG.md files for Microsoft.Extensions.DataIngestion* projects by @Copilot in #7072
• Assign authors only on PR creation by @sebastienros in #7083
• Update to .NET 10 GA release by @Copilot in #7078
• Fix package references from M.E.AI packages by @stephentoub in #7076
• Workaround OpenAI bug with streaming error events by @stephentoub in #7085
• Update AI changelogs for 10.0.1 release by @stephentoub in #7086
• Add metering for baseline resource quotas by @amadeuszl in #7080
• Update Microsoft.VisualStudio.Threading.Analyzers to latest by @stephentoub in #7091
• Update SonarAnalyzer.CSharp to latest by @stephentoub in #7092
• Remove Microsoft.Extensions.AI.AzureAIInference by @stephentoub in #7096
• DisableParallelization for environment variables based tests by @amadeuszl in #7100
• Remove AzureAIInference remnants after #7096 by @Copilot in #7102
• Update resource management configuration by @sebastienros in #7084

New Contributors

• @KeterSCP made their first contribution in #6877
• @crickman made their first contribution in #7063

Full Changelog: v10.0.0...v10.1

What's Changed

• Give FunctionInvokingChatClient span a more OTELy name by @verdie-g in #6911
• Update repository branding from 9.10 to 10.0 by @Copilot in #6907
• Clean up local function names in AIFunctionFactory by @Copilot in #6909
• Update OpenTelemetryChatClient to output data on all tools by @stephentoub in #6906
• Update ToChatResponse{Async} to also factor in AuthorName by @stephentoub in #6910
• add support for background responses by @SergeyMenshykh in #6854
• Fix METGEN004 error message: print return type in ErrorInvalidMethodReturnType by @eduherminio in #6905
• Fix OpenTelemetryChatClient failing on unknown content types by @stephentoub in #6915
• Add support for Connector ID and other follow ups by @jozkee in #6881
• Update AI lib changelogs by @stephentoub in #6920
• Merge internal changes by @joperezr in #6921
• Add Workstream, Stage, and PackageValidationBaselineVersion metadata to ServiceDiscovery libraries by @Copilot in #6919
• Add back Uri ctor to HostedMcpServerTool by @jozkee in #6926
• Set DisableNETStandardCompatErrors in ServiceDiscovery libraries by @eerhardt in #6927
• Update Package validation baseline version to 9.10.0 by @Copilot in #6922
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #6802
• Extend service discovery to support Consul-based DNS lookups: by @bart-vmware in #6914
• Update AsOpenAIResponseItems to roundtrip User AIContent ResponseItems by @stephentoub in #6931
• Special-case AIContent returned from AIFunctionFactory.Create AIFunctions to not be serialized by @stephentoub in #6935
• Preserve function content in SummarizingChatReducer by @MackinnonBuck in #6908
• Tool reduction by @MackinnonBuck in #6781
• Fix coalescing of TextReasoningContent with ProtectedData by @stephentoub in #6936
• Doc updates by @gewarren in #6930
• Support DisplayNameAttribute for name resolution in AI libraries by @Copilot in #6942
• Fix EquivalenceEvaluator MaxOutputTokens to meet Azure OpenAI minimum requirement by @Copilot in #6948
• Support DefaultValueAttribute in AIFunctionFactory parameter handling by @Copilot in #6947
• Bump vite from 6.3.6 to 6.4.1 in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript by @dependabot[bot] in #6938
• Introduce Microsoft.Extensions.DataIngestion.Abstractions by @adamsitnik in #6949
• Update to latest schema version (accepted by MCP registry) by @joelverhagen in #6956
• Introduce IngestionChunkWriter build on top of MEVD by @adamsitnik in #6951
• Update AI Chat Web dependencies by @MackinnonBuck in #6955
• Add AITool -> OpenAI.Responses.ResponseTool conversion utility by @rogerbarreto in #6958
• Update AI changelogs for 9.10.1 by @stephentoub in #6950
• Add Name property to OtelMessage to store ChatMessage.AuthorName per OpenTelemetry semantic conventions by @Copilot in #6953
• Fix serialization of UserInputRequest/ResponseContent by @stephentoub in #6962
• Expose building blocks for external service discovery implementations by @bart-vmware in #6946
• Bump validator from 13.15.0 to 13.15.20 in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript by @dependabot[bot] in #6974
• Add eng/sdl-tsa-vars.config for TSA integration by @Copilot in #6980
• Add CodeInterpreterToolCall/ResultContent content types by @stephentoub in #6964
• Update to 1.38 of the otel genai standard convention by @stephentoub in #6981
• Introduce set of built-in Enrichers by @adamsitnik in #6957
• Allow ChatOptions.ConversationId to be an OpenAI conversation ID with Responses by @stephentoub in #6960
• Fix warning breaking official build, enable warningAsError in all pipelines by @ericstj in #6988
• Introduce HeaderChunker by @adamsitnik in #6979
• Introduce Markdown readers by @adamsitnik in #6969
• Add usage telemetry for aieval dotnet tool by @shyamnamboodiripad in #6773
• Update to OpenAI 2.6.0 by @stephentoub in #6996
• Don't specify MaxOutputTokens for EquivalenceEvaluator by @shyamnamboodiripad in #7006
• Fix Assert.Throws to validate parameter names by @stephentoub in #7007
• [MEDI] Remove collection key type workaround by @adamsitnik in #7010
• Enable binskim to extract packages by @ericstj in #6989
• Added net10.0 targeting to all packages and flowed RC2 dependency versions. by @joperezr in #6995
• [MEDI] Pipeline by @adamsitnik in #6993
• Add Semantic Similarity chunker by @KrystofS in #6994

New Contributors

• @SergeyMenshykh made their first contribution in #6854
• @bart-vmware made their first contribution in #6914

Full Changelog: v9.10.0...v10.0.0

What's Changed

• Branding updates for 9.10 by @Copilot in #6769
• Doc improvements by @gewarren in #6794
• Bump vite from 6.3.5 to 6.3.6 in /src/Libraries/Microsoft.Extensions.AI.Evaluation.Reporting/TypeScript by @dependabot[bot] in #6793
• Updated changelogs for AI libs by @stephentoub in #6787
• Update MCP server template by @jeffkl in #6772
• Add support for using ConversationID for AzureOpenAI and OpenAI by @ViveliDuCh in #6770
• Merging internal commits by @joperezr in #6801
• Merge changes from release/9.9 branch by @joperezr in #6803
• Support keyed HybridCache with keyed DistributedCaches and named options by @kelly-yinn in #6694
• Inventory as code by @wtgodbe in #6820
• Increase output token limit for EquivalenceEvaluator by @shyamnamboodiripad in #6835
• Fix KeyNotFoundException on HttpRequestLatencyListener.OnEventWritten for uknown event sources by @ssmelov in #6821
• Add project name normalization to match aspire's code generator logic by @ViveliDuCh in #6818
• Disable really noisy analyzers, part 1 by @stephentoub in #6837
• Fix KeyNotFoundException in HttpRequestLatencyListener.OnEventWritten by @pentp in #6823
• Update global.json to use .NET 9.0.0 stable instead of RC 1 by @Copilot in #6846
• Add measures and tags with mediator object to the HttpClientLatencyLogEnricher by @rainsxng in #6783
• Add comprehensive .github/copilot-instructions.md for dotnet/extensions repository by @Copilot in #6792
• Update to .NET 10 SDK by @eerhardt in #6863
• Update Microsoft.Extensions.AI changelog files with current NuGet versions by @Copilot in #6849
• Fix GenerateImagesAsync_SingleImageGeneration integration test by @stephentoub in #6843
• Re-enable IDE0032 by @stephentoub in #6866
• Add OpenTelemetrySpeechToTextClient and friends by @stephentoub in #6845
• Update ModelContextProtocol version in MCP template by @MackinnonBuck in #6870
• Scope Ollama resilience settings to Web/Program.cs and restore ServiceDefaults by @ViveliDuCh in #6850
• Update Aspire by @Varorbc in #6858
• Update MCP template for new registry specification by @Copilot in #6796
• Add support for HostApplicationBuilder in AmbientMetadata extension by @eduherminio in #6867
• Fix mcpserver test baselines by @jeffhandley in #6874
• Move Microsoft.Extensions.ServiceDiscovery to dotnet/extensions by @eerhardt in #6868
• Add copy constructors to option types (ChatOptions, etc.) by @stephentoub in #6882
• Fix ChatMessage.CreatedAt being always overwritten by the latest timestamp. by @Copilot in #6885
• Small doc fixes by @gewarren in #6887
• Update AI changelogs with some recent additions by @stephentoub in #6886
• Fix Assistants IChatClient handling of unrelated tool calls in history by @stephentoub in #6891
• Fix duplication between OpenAI Assistants pre-configured tools by @stephentoub in #6896
• Update MCP Server Template to adhere to 2025-09-29 server.json schema by @joelverhagen in #6888
• Remove Azure.AI.OpenAI dependency from templates and tests by @Copilot in #6873
• Remove UnsafeRelaxedJsonEscaping by @peterwald in #6899
• Fix bug to yield remaining buffered FCC by @westey-m in #6903
• Fix serialization of [Experimental] AIContent-derived types by @stephentoub in #6900

New Contributors

• @westey-m made their first contribution in #6745
• @jeffkl made their first contribution in #6772
• @ViveliDuCh made their first contribution in #6770
• @kelly-yinn made their first contribution in #6694
• @ssmelov made their first contribution in #6821
• @Varorbc made their first contribution in #6858

Full Changelog: v9.9.0...v9.10.0

Highlights

AI

• Abstractions for remote MCP servers; response/approval flow support via new experimental types
• Function approvals via new experimental types (e.g., ApprovalRequiredAIFunction, user input/approval request & response content).
• Reasoning text streaming for OpenAI Responses ChatClient streaming.
• AIFunction split into a base class to improve extensibility.
• IChatReducer moved to Microsoft.Extensions.AI.Abstractions.
• Updated to OpenAI 2.4.0 and genai standard convention 1.37.
• Coalescing logic now treats ChatMessage.Role changes as new messages.
• GetResponseAsync<T> now reads only the last message (bug fix).
• OpenTelemetry ChatClient/EmbeddingGenerator logs raw additional properties (no key mangling).
• Fixed empty annotated text chunk handling in streaming with OpenAI Assistants.

Telemetry & Diagnostics

• HTTP diagnostics log query string params with proper redaction (emitted on url.query).
• server.address telemetry emits host only (per OpenTelemetry semantic conventions).
• Heuristics added to detect well-known model hosts.
• Resource monitoring can consider Environment.CpuUsage.

New Contributors

• @ykumashev made their first contribution in #6696

Full Changelog: v9.8.0...v9.9.0

What's Changed

• Align EventId generation with M.E.Logging source-gen by @xakep139 in #6566
• Add resiliency mechanism to CPU and memory utilization checks by @amadeuszl in #6528
• Suppress flaky test until fixed by @joelverhagen in #6568
• Create a project template for an MCP server by @joelverhagen in #6547
• Use dnx instead of dotnet tool exec in MCP server template README by @joelverhagen in #6571
• Add reporting tests that show NLP results. by @peterwald in #6574
• Branding updates for 9.8.0 by @joperezr in #6573
• Fix ConfigureEvaluationTests.ps1 script when $ConfigRoot is not supplied by @peterwald in #6575
• Refactor Resource Monitoring by @evgenyfedorov2 in #6554
• Update McpServer template for 0.3.0-preview.2 by @stephentoub in #6578
• Add container.cpu.time metric by @evgenyfedorov2 in #5806
• Add netstandard2.0 compatibility to Microsoft.Extensions.Diagnostics.Testing and dependencies by @bdovaz in #6219
• Add netstandard2.0 compatibility to Microsoft.Extensions.Telemetry and dependencies by @bdovaz in #6218
• Simplify Http.Diagnostics by @pentp in #6174
• Add netstandard2.0 compatibility to Microsoft.Extensions.Http.Resilience and dependencies by @bdovaz in #6582
• Ingore null loggers returned by LogProviders in ELoggerFactory by @petrroll in #6585
• Merging changes from internal by @joperezr in #6588
• [Logging] Fixes LogProperties and LogPropertyIgnore attributes to work if an object being logged resides in a different assembly than the logging method by @iliar-turdushev in #6600
• Add memory usage metric by @evgenyfedorov2 in #6586
• Add schema version to server.json in MCP template by @joelverhagen in #6606
• Merge release/9.7 into main by @joperezr in #6589
• Update MCP server template readme to show both VS Code and Visual Studio notes by @Copilot in #6591
• Update Azure Open AI package referenced by eval integration tests by @shyamnamboodiripad in #6609
• Target .NET 8 for more stable runtime requirement by @joelverhagen in #6617
• Add support for new Azure AI Foundry project type for Safety evals by @shyamnamboodiripad in #6621
• M.E.AI.AzureAIInference - Azure.AI.Inference Package Bump by @rogerbarreto in #6624
• Add DataContent.Name property by @stephentoub in #6616
• Fix handling of multiple responses messages by @stephentoub in #6627
• Expose additional chat model conversion helpers by @stephentoub in #6629
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #6633
• [Http.Resilience] The DisableFor method should try to retrieve the request object from the resilience context by @iliar-turdushev in #6618
• Bump Package validation baseline version to 9.7.0 by @Copilot in #6650
• Fix internal package version detection for project templates by @MackinnonBuck in #6651
• Remove Microsoft.Extensions.AI.Ollama by @MackinnonBuck in #6655
• Fix M.E.AI package refs by @stephentoub in #6654
• Add [Description] to DataContent.Uri by @stephentoub in #6615
• Fix duplicate solution file when creating an AI Chat Web app from VS by @MackinnonBuck in #6653
• Add ChatMessage.CreatedAt by @stephentoub in #6657
• Add TextContent.Annotations by @stephentoub in #6619
• Add FunctionInvokingChatClient.AdditionalTools by @stephentoub in #6661
• Fix unintentional test env var change by @stephentoub in #6660
• Add more openai conversion helpers by @stephentoub in #6662
• Add OriginalRepoCommitHash to assemblies by @BrennanConroy in #6667
• Include a trivial items keyword if missing. by @eiriktsarpalis in #6669
• Add resolution of function parameter level data annotation attributes. by @eiriktsarpalis in #6671
• Fix issue with NetSourceIndexStage1 for dependency conflict versions by @joperezr in #6672
• Expose streaming conversion utility methods by @stephentoub in #6636
• Couple of fixes for MEAI.Evaluation by @shyamnamboodiripad in #6673
• Fix one more version conflict on the docs transport package by @joperezr in #6675
• Introduce metadata to identify built-in evaluation metrics by @shyamnamboodiripad in #6674
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #6679
• Emit {OriginalFormat} in HttpClient logger by @iliar-turdushev in #6682
• Update to OpenAI 2.3.0 by @stephentoub in #6684
• Remove AdjustTime from experimental by @amadeuszl in #6668
• Allow custom filtering logic for FakeLogger by @Demo30 in #5848
• Mark packages as stable and update to .NET Servicing versions by @joperezr in #6700
• [release/9.8] Backport several AI-related PRs by @stephentoub in #6703
• [release/9.8] Update Azure.AI.OpenAI by @github-actions[bot] in #6710
• [release/9.8] Add support for text-to-image by @ericstj in #6711
• [release/9.8] Use Azure hosting integrations in Aspire AI Chat Web template by @MackinnonBuck in #6712
• [release/9.8] Add middleware for reducing chat history by @github-actions[bot] in #6713

New Contributors

• @joelverhagen made their first contribution in #6568
• @bdovaz made their first contribution in #6219
• @petrroll made their first contribution in #6585

Full Changelog: v9.7.0...v9.8.0

Packages Released

• Microsoft.Extensions.AI.Templates 9.7.2-preview.3.25366.2

What's Changed

• Target .NET 8 for more stable runtime requirement by @joelverhagen in #6617

Full Changelog: v9.7.1...v9.7.2

Packages Released

• Microsoft.Extensions.AI 9.7.1
• Microsoft.Extensions.AI.Abstractions 9.7.1
• Microsoft.Extensions.AI.OpenAI 9.7.1-preview.1.25365.4
• Microsoft.Extensions.AI.AzureAIInference 9.7.1-preview.1.25365.4
• Microsoft.Extensions.AI.Templates 9.7.1-preview.3.25365.4

What's Changed

• Merging changes from internal by @joperezr in #6588
• Bump FunctionInvokingChatClient.MaximumIterationsPerRequest from 10 to 40 by @stephentoub in #6599
• Expose M.E.AI.OpenAI input message conversions by @stephentoub in #6601
• Add schema version to server.json in MCP template by @joelverhagen in #6606
• Update MCP server template readme to show both VS Code and Visual Studio notes by @jeffhandley in #6591
• Fix schema generation for Nullable function parameters. by @eiriktsarpalis in #6596
• Branding updates for 9.7.1 by @joperezr in #6611
• Add DelegatingAIFunction by @stephentoub in #6565
• Add FunctionInvokingChatClient.FunctionInvoker delegate by @stephentoub in #6564
• Enable specifying "strict" for OpenAI clients via ChatOptions by @stephentoub in #6552
• AIFunctionFactory: tolerate JSON string function parameters. by @eiriktsarpalis in #6572
• AIFunctionFactory: add test coverage for JSON comments. by @eiriktsarpalis in #6576
• Update M.E.AI.OpenAI for latest OpenAI release by @stephentoub in #6577
• Update OpenTelemetry semantic conventions version from 1.35 to 1.36 by @Copilot in #6579
• AIFunctionFactory: add a flag for disabling return schema generation. by @eiriktsarpalis in #6551
• Bump FunctionInvokingChatClient.MaximumIterationsPerRequest from 10 to 40 by @stephentoub in #6599
• Expose M.E.AI.OpenAI input message conversions by @stephentoub in #6601
• Fix schema generation for Nullable function parameters. by @eiriktsarpalis in #6596

Full Changelog: v9.7.0...v9.7.1

What's Changed

• Branding updates for 9.7 by @joperezr in #6495
• Fix name of genai input/output tokens tag by @stephentoub in #6494
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #6503
• Improve handling of RawRepresentation in OpenAI{Response}ChatClient by @stephentoub in #6500
• Bring back AsIChatClient for OpenAI AssistantClient by @stephentoub in #6501
• Add resiliency to Resource Monitoring in Linux by @amadeuszl in #6489
• Merging changes from the internal fork by @joperezr in #6508
• Workaround OpenAI assistant's RunCreationOption's tools override by @stephentoub in #6512
• Add ChatOptions.Instructions by @stephentoub in #6505
• Introduce evaluators for agentic workflows by @shyamnamboodiripad in #6514
• Allow a CachingChatClient to control per-request caching by @stephentoub in #6524
• Tweak OpenAI JSON schema transforms by @stephentoub in #6523
• Merging changes from release/9.6 branch by @joperezr in #6516
• Augment AIJsonUtilities.CreateJsonSchema for more types and annotations by @stephentoub in #6540
• Added conversions from AIFunction to various OpenAI tools by @KrzysztofCwalina in #6539
• Add SpeechToTextResponse.Usage by @stephentoub in #6546
• Implement BLEU score evaluation for NLP tests by @peterwald in #6537
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro[bot] in #6553
• #5962 Change to early return of OS instead of throwing by @juliankock in #5963
• Mark log sampling & buffering API as stable by @evgenyfedorov2 in #6534
• Update GenAI otel impl for v1.35 by @stephentoub in #6557
• Implement GLEU and F1 NLP evaluators by @peterwald in #6555
• Update tokenizer algorithm to use is [..] by @peterwald in #6561
• Rename some constants to match convention by @shyamnamboodiripad in #6562
• Add DistributedCachingChatClient/EmbeddingGenerator.AdditionalCacheKeyValues by @stephentoub in #6558

New Contributors

• @KrzysztofCwalina made their first contribution in #6539
• @juliankock made their first contribution in #5963

Full Changelog: v9.6.0...v9.7.0

What's Changed

• Branding updates for 9.6.0 by @joperezr in #6399
• Add log buffering info to README.md by @evgenyfedorov2 in #6403
• Fix dynamic config update for log buffering by @evgenyfedorov2 in #6435
• Remove unused select param from CreateRecordsForDocumentAsync by @jongalloway in #6341
• Merge internal changes by @joperezr in #6437
• Reduce per-lookup overhead from key validation in HybridCache by @MihaZupan in #6441
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro in #6443
• Merge release/9.5 into main by @joperezr in #6448
• Fix up comments in eval API json files by @shyamnamboodiripad in #6452
• Remove preview tag on Azure DevOps extension by @peterwald in #6456
• Bump PackageValidation against 9.5.0 and enable for stable MEAI packages by @joperezr in #6458
• Fix paramref tag by @gewarren in #6459
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro in #6462
• Add a script to diff the contents of folders that match a specific pattern across two branches by @shyamnamboodiripad in #6453
• Remove title and description keywords from root-level schemas in AIFunctionFactory. by @eiriktsarpalis in #6465
• Replace JSON vector store with SQLite by @MackinnonBuck in #6438
• Update chat template Microsoft.SemanticKernel dependency to 1.53.0 by @MackinnonBuck in #6470
• Update chat template external dependencies by @MackinnonBuck in #6471
• Exclude provider URI from cache key computation by default by @shyamnamboodiripad in #6473
• Make hashing stable w.r.t. indentation settings and property ordering. by @eiriktsarpalis in #6476
• [main] Update dependencies from dotnet/arcade by @dotnet-maestro in #6481
• Add default value for namedArg in Microsoft.Gen.Metrics.parser by @BowenYang666 in #6238
• Update OpenTelemetryChatClient to 1.34 by @stephentoub in #6466
• Delete M.E.AI changelog files by @stephentoub in #6467
• Add comma to remarks by @gewarren in #6485
• Implement disk io metrics for linux by @makazeu in #6374
• Add AIFunction.ReturnJsonSchema by @eiriktsarpalis in #6447

New Contributors

• @MihaZupan made their first contribution in #6441
• @BowenYang666 made their first contribution in #6238

Full Changelog: v9.5.0...v9.6.0