dotnet-1.0.0-preview.260108.1

What's Changed

• .NET: [Durable Agents] Reliable streaming sample by @cgillum in #2942
• .NET: [Breaking] Introduce RunCoreAsync/RunCoreStreamingAsync delegation pattern in AIAgent by @Copilot in #2749
• .NET: [BREAKING] Refactor ChatMessageStore methods to be similar to AIContextProvider and add filtering support by @westey-m in #2604
• [BREAKING] Remove unused AgentThreadMetadata by @westey-m in #3067
• .NET: Seal ChatClientAgentThread by @Copilot in #2842
• .NET: Fix message ordering inconsistency when using AIContextProvider by @Copilot in #2659
• .NET: Seal factory contexts and add non JSO deserialize overloads by @westey-m in #3066
• updated templates by @eavanvalkenburg in #3106
• .NET: Make A2AAgent public, so that its concrete implementation methods can be used. by @westey-m in #3119
• .NET: Map additional props <-> A2A metadata by @SergeyMenshykh in #3137
• .NET: Bump AWSSDK.Extensions.Bedrock.MEAI from 4.0.5 to 4.0.5.1 by @dependabot[bot] in #2994
• .NET: Bump Anthropic from 12.0.0 to 12.0.1 by @dependabot[bot] in #2993
• .NET: fix: Expose WorkflowErrorEvent as ErrorContent by @lokitoth in #2762
• .NET: [Breaking] Prevent loss of input messages & streamed updates when resuming streaming by @SergeyMenshykh in #2748
• .NET: Bump Microsoft.Agents.AI.Workflows from 1.0.0-preview.251125.1 to 1.0.0-preview.251219.1 by @dependabot[bot] in #2997
• .NET: Add Run overloads to expose ChatClientAgentRunOptions in IntelliSense by @Copilot in #3115
• .NET: Bump Google.GenAI from 0.6.0 to 0.9.0 by @dependabot[bot] in #2995
• .NET: Updated package versions by @dmytrostruk in #3144
• .NET: Bump Microsoft.Agents.AI.OpenAI and Microsoft.Extensions.AI.OpenAI by @dependabot[bot] in #2996

Full Changelog: dotnet-1.0.0-preview.251219.1...dotnet-1.0.0-preview.260108.1

python-1.0.0b260107

[1.0.0b260107] - 2026-01-07

Added

• agent-framework-devui: Improve DevUI and add Context Inspector view as a new tab under traces (#2742) by @victordibia
• samples: Add streaming sample for Azure Functions (#3057) by @gavin-aguiar

Changed

• repo: Update templates (#3106) by @eavanvalkenburg

Fixed

• agent-framework-ag-ui: Fix MCP tool result serialization for list[TextContent] (#2523) by @claude89757
• agent-framework-azure-ai: Fix response_format handling for structured outputs (#3114) by @moonbox3

Full Changelog: python-1.0.0b260106...python-1.0.0b260107

python-1.0.0b260106

[1.0.0b260106] - 2026-01-06

Added

• repo: Add issue template and additional labeling (#3006) by @eavanvalkenburg

Changed

• None

Fixed

• agent-framework-core: Fix max tokens translation and add extra integer test (#3037) by @eavanvalkenburg
• agent-framework-azure-ai: Fix failure when conversation history contains assistant messages (#3076) by @moonbox3
• agent-framework-core: Use HTTP exporter for http/protobuf protocol (#3070) by @takanori-terai
• agent-framework-core: Fix ExecutorInvokedEvent and ExecutorCompletedEvent observability data (#3090) by @moonbox3
• agent-framework-core: Honor tool_choice parameter passed to agent.run() and chat client methods (#3095) by @moonbox3
• samples: AzureAI SharePoint sample fix (#3108) by @giles17

New Contributors

• @takanori-terai made their first contribution in #3070

Full Changelog: python-1.0.0b251223...python-1.0.0b260106

python-1.0.0b251223

[1.0.0b251223] - 2025-12-23

Added

• agent-framework-bedrock: Introducing support for Bedrock-hosted models (Anthropic, Cohere, etc.) (#2610)
• agent-framework-core: Added response.created and response.in_progress event process to OpenAIBaseResponseClient (#2975)
• agent-framework-foundry-local: Introducing Foundry Local Chat Clients (#2915)
• samples: Added GitHub MCP sample with PAT (#2967)

Changed

• agent-framework-core: Preserve reasoning blocks with OpenRouter (#2950)

dotnet-1.0.0-preview.251219.1

What's Changed

• .NET: [Breaking] Move TextSearchProvider and TextSearchProviderOptions to Microsoft.Agents.AI namespace by @Copilot in #2639
• .NET: Add samples for OpenAIChatClientAgent and OpenAIResponseClientAgent by @SergeyMenshykh in #2638
• .NET: Annotate all public methods of OpenAIAssistantClientExtensions with Obsolete attribute by @Copilot in #2640
• .NET: fix forwarding conversationId to IChatClient in OpenAI Responses by @DeagleGross in #2632
• .NET: Added solution filter file for release by @dmytrostruk in #2651
• .NET: AG-UI Docs samples by @javiercn in #2194
• .NET Workflows - Minor updates to samples by @crickman in #2707
• Bump danielpalme/ReportGenerator-GitHub-Action from 5.5.0 to 5.5.1 by @dependabot[bot] in #2680
• .NET: [BREAKING] Change namespaces of the Microsoft.Agents.AI.OpenAI classes by @SergeyMenshykh in #2627
• .NET: Bump Azure.AI.OpenAI from 2.7.0-beta.1 to 2.7.0-beta.2 by @dependabot[bot] in #2626
• .NET: [Durable Agents] Update CHANGELOG with release notes for past releases by @cgillum in #2669
• .NET Workflows - Update Declarative Integration Tests for File Cases by @crickman in #2733
• Bump MishaKav/pytest-coverage-comment from 1.1.59 to 1.2.0 by @dependabot[bot] in #2255
• .NET: Bump Aspire.Hosting.AppHost from 13.0.1 to 13.0.2 by @dependabot[bot] in #2623
• .NET: Bump Aspire.Microsoft.Azure.Cosmos from 13.0.1 to 13.0.2 by @dependabot[bot] in #2625
• .NET: Bump Aspire.Hosting.Azure.CognitiveServices from 13.0.1 to 13.0.2 by @dependabot[bot] in #2624
• .NET: fix: Standardize OpenAI API key environment variable naming (#1001) by @alzarei in #2629
• .NET: Update analyzers for .NET 10 SDK by @stephentoub in #2611
• .NET: Bump AWSSDK.Extensions.Bedrock.MEAI from 4.0.4.6 to 4.0.4.7 by @dependabot[bot] in #2173
• .NET: Update the migration guidelines with latest changes by @rogerbarreto in #2703
• .NET: Add LoggingAgent wrapper for ILogger-based observability by @Copilot in #2701
• .NET: use valid Gemini model by @jochenkirstaetter in #2695
• Update Microsoft.Extensions.AI.* packages to 10.1.0 by @Copilot in #2735
• .NET: [BREAKING] Prevent nulls in AIAgent.Id property by @SergeyMenshykh in #2719
• .NET: Comment on DevUI middleware redirectUrl by @DeagleGross in #2723
• .NET: Add Conversation State Sample (Step05) by @Copilot in #2697
• .NET: Bump AWSSDK.Extensions.Bedrock.MEAI from 4.0.4.7 to 4.0.4.11 by @dependabot[bot] in #2777
• .NET: Bump Azure.Identity from 1.17.0 to 1.17.1 by @dependabot[bot] in #2780
• .NET: Bump Azure.AI.AgentServer.AgentFramework from 1.0.0-beta.4 to 1.0.0-beta.5 by @dependabot[bot] in #2778
• Bump actions/checkout from 5 to 6 by @dependabot[bot] in #2404
• .NET: adds support for labels in edges, fixes rendering of labels in dot a… by @joslat in #1507
• .NET: Update to latest Azure.AI., OpenAI, and M.E.AI by @stephentoub in #2850
• Bump actions/cache from 4 to 5 by @dependabot[bot] in #2861
• Bump actions/download-artifact from 6 to 7 by @dependabot[bot] in #2862
• Bump actions/upload-artifact from 5 to 6 by @dependabot[bot] in #2860
• .NET: Skip failing IT by @rogerbarreto in #2904
• .NET: Cosmos DB UT Fast Skip (For Non-Configured Local envs) by @rogerbarreto in #2906
• .NET: Add TTLs to durable agent sessions by @cgillum in #2679
• .NET: Switch to new "Run" method name. by @philliphoff in #2843
• .NET: Make DelegatingAIAgent abstract by @Copilot in #2797
• .NET: [Breaking] Delete display name property by @SergeyMenshykh in #2758
• .NET: Update Anthropic package to version 12.0.0 by @Copilot in #2914
• .NET: Bump AWSSDK.Extensions.Bedrock.MEAI from 4.0.4.11 to 4.0.5 by @dependabot[bot] in #2853
• .NET: Bump CommunityToolkit.Aspire.OllamaSharp from 13.0.0-beta.440 to 13.0.0 by @dependabot[bot] in #2856
• .NET: Bump Azure.AI.AgentServer.AgentFramework from 1.0.0-beta.4 to 1.0.0-beta.5 by @dependabot[bot] in #2854
• .NET: Use GrpcEntityRunner instead of TaskEntityDispatcher by @jviau in #2759
• .NET: Updated package versions by @dmytrostruk in #2978

Full Changelog: dotnet-1.0.0-preview.251204.1...dotnet-1.0.0-preview.251219.1

python-1.0.0b251218

[1.0.0b251218] - 2025-12-18

Added

• agent-framework-core: Azure AI Agent with Bing Grounding Citations sample (#2892)
• agent-framework-core: Workflow option to visualize internal executors (#2917)
• agent-framework-core: Workflow cancellation sample (#2732)
• agent-framework-core: Azure Managed Redis support with credential provider (#2887)
• agent-framework-core: Additional arguments for Azure AI agent configuration (#2922)

Changed

• agent-framework-ollama: Updated Ollama package version (#2920)
• agent-framework-ollama: Move Ollama samples to samples getting started directory (#2921)
• agent-framework-core: Cleanup and refactoring of chat clients (#2937)
• agent-framework-core: Align Run ID and Thread ID casing with AG-UI TypeScript SDK (#2948)

Fixed

• agent-framework-core: Fix Pydantic error when using Literal types for tool parameters (#2893)
• agent-framework-core: Correct MCP image type conversion in _mcp.py (#2901)
• agent-framework-core: Fix BadRequestError when using Pydantic models in response formatting (#1843)
• agent-framework-core: Propagate workflow kwargs to sub-workflows via WorkflowExecutor (#2923)
• agent-framework-core: Fix WorkflowAgent event handling and kwargs forwarding (#2946)

New Contributors

• @egeozanozyedek made their first contribution in #2901
• @samueljohnsiby made their first contribution in #1843

Full Changelog: python-1.0.0b251216...python-1.0.0b251218

python-1.0.0b251216

[1.0.0b251216] - 2025-12-16

Added

• agent-framework-ollama: Ollama connector for Agent Framework (#1104)
• agent-framework-core: Added custom args and thread object to ai_function kwargs (#2769)
• agent-framework-core: Enable checkpointing for WorkflowAgent (#2774)

Changed

• agent-framework-core: [BREAKING] Observability updates (#2782)
• agent-framework-core: Use agent description in HandoffBuilder auto-generated tools (#2714)
• agent-framework-core: Remove warnings from workflow builder when not using factories (#2808)

Fixed

• agent-framework-core: Fix WorkflowAgent to include thread conversation history (#2774)
• agent-framework-core: Fix context duplication in handoff workflows when restoring from checkpoint (#2867)
• agent-framework-core: Fix middleware terminate flag to exit function calling loop immediately (#2868)
• agent-framework-core: Fix WorkflowAgent to emit yield_output as agent response (#2866)
• agent-framework-core: Filter framework kwargs from MCP tool invocations (#2870)

python-1.0.0b251211

[1.0.0b251211] - 2025-12-11

Added

• agent-framework-core: Extend HITL support for all orchestration patterns (#2620)
• agent-framework-core: Add factory pattern to concurrent orchestration builder (#2738)
• agent-framework-core: Add factory pattern to sequential orchestration builder (#2710)
• agent-framework-azure-ai: Capture file IDs from code interpreter in streaming responses (#2741)

Changed

• agent-framework-azurefunctions: Change DurableAIAgent log level from warning to debug when invoked without thread (#2736)

Fixed

• agent-framework-core: Added more complete parsing for mcp tool arguments (#2756)
• agent-framework-core: Fix GroupChat ManagerSelectionResponse JSON Schema for OpenAI Structured Outputs (#2750)
• samples: Standardize OpenAI API key environment variable naming (#2629)

python-1.0.0b251209

[1.0.0b251209] - 2025-12-09

Added

• agent-framework-core: Support an autonomous handoff flow (#2497)
• agent-framework-core: WorkflowBuilder registry (#2486)
• agent-framework-a2a: Add configurable timeout support to A2AAgent (#2432)
• samples: Added Azure OpenAI Responses File Search sample + Integration test update (#2645)
• samples: Update fan in fan out sample to show concurrency (#2705)

Changed

• agent-framework-azure-ai: [BREAKING] Renamed async_credential to credential (#2648)
• samples: Improve sample logging (#2692)
• samples: azureai image gen sample update (#2709)

Fixed

• agent-framework-core: Fix DurableState schema serializations (#2670)
• agent-framework-core: Fix context provider lifecycle agentic mode (#2650)
• agent-framework-devui: Fix WorkflowFailedEvent error extraction (#2706)
• agent-framework-devui: Fix DevUI fails when uploading Pdf file (#2675)
• agent-framework-devui: Fix message serialization issue (#2674)
• observability: Display system prompt in langfuse (#2653)

python-1.0.0b251204

[1.0.0b251204] - 2025-12-04

Added

• agent-framework-core: Add support for Pydantic BaseModel as function call result (#2606)
• agent-framework-core: Executor events now include I/O data (#2591)
• samples: Inline YAML declarative sample (#2582)
• samples: Handoff-as-agent with HITL sample (#2534)

Changed

• agent-framework-core: [BREAKING] Support Magentic agent tool call approvals and plan stalling HITL behavior (#2569)
• agent-framework-core: [BREAKING] Standardize orchestration outputs as list of ChatMessage; allow agent as group chat manager (#2291)
• agent-framework-core: [BREAKING] Respond with AgentRunResponse including serialized structured output (#2285)
• observability: Use executor_id and edge_group_id as span names for clearer traces (#2538)
• agent-framework-devui: Add multimodal input support for workflows and refactor chat input (#2593)
• docs: Update Python orchestration documentation (#2087)

Fixed

• observability: Resolve mypy error in observability module (#2641)
• agent-framework-core: Fix AgentRunResponse.created_at returning local datetime labeled as UTC (#2590)
• agent-framework-core: Emit ExecutorFailedEvent before WorkflowFailedEvent when executor throws (#2537)
• agent-framework-core: Fix MagenticAgentExecutor producing repr string for tool call content (#2566)
• agent-framework-core: Fixed empty text content Pydantic validation failure (#2539)
• agent-framework-azure-ai: Added support for application endpoints in Azure AI client (#2460)
• agent-framework-azurefunctions: Add MCP tool support (#2385)
• agent-framework-core: Preserve MCP array items schema in Pydantic field generation (#2382)
• agent-framework-devui: Make tool call view optional and fix links (#2243)
• agent-framework-core: Always include output in function call result messages (#2414)
• agent-framework-redis: Fix TypeError (#2411)