Sourced from Azure.AI.AgentServer.AgentFramework's releases.

1.0.0-beta.11

1.0.0-beta.11 (2026-03-13)

Bugs Fixed

• Support UseFoundryTools to accept optional TokenCredential parameter

1.0.0-beta.10

1.0.0-beta.10 (2026-03-11)

Other Changes

• Update Microsoft.Agents.AI, Microsoft.Agents.AI.Workflows, Microsoft.Agents.AI.OpenAI packages to 1.0.0-rc3

1.0.0-beta.9

1.0.0-beta.9 (2026-03-03)

Other Changes

• Update Microsoft.Agents.AI, Microsoft.Agents.AI.Workflows, Microsoft.Agents.AI.OpenAI packages to 1.0.0-rc1

Commits viewable in compare view.

Sourced from Microsoft.Agents.AI's releases.

1.0.0-rc3

What's Changed

• .NET: Support hosted code interpreter for skill script execution by @​SergeyMenshykh in .NET: Support hosted code interpreter for skill script execution #4192
• .NET: AgentThread serialization alternatives ADR by @​westey-m in .NET: AgentThread serialization alternatives ADR #3062
• .NET: Add helpers to more easily access in-memory ChatHistory and make ChatHistoryProvider management more configurable. by @​westey-m in .NET: Add helpers to more easily access in-memory ChatHistory and make ChatHistoryProvider management more configurable. #4224
• .Net: Add additional Hosted Agent Samples by @​rogerbarreto in .Net: Add additional Hosted Agent Samples #4325
• .NET: Revert ".NET: Support hosted code interpreter for skill script execution" by @​SergeyMenshykh in .NET: Revert ".NET: Support hosted code interpreter for skill script execution" #4385
• .NET: Fixing issue with invalid node Ids when visualizing dotnet workflows. by @​alliscode in .NET: Fixing issue with invalid node Ids when visualizing dotnet workflows. #4269
• .NET: Fix FileAgentSkillsProvider custom SkillsInstructionPrompt silently dropping skills by @​SergeyMenshykh in .NET: Fix FileAgentSkillsProvider custom SkillsInstructionPrompt silently dropping skills #4388
• .NET: AuthN & AuthZ sample with asp.net service and web client by @​westey-m in .NET: AuthN & AuthZ sample with asp.net service and web client #4354
• .NET: Update GroupChat workflow builder to support name and description by @​peibekwe in .NET: Update GroupChat workflow builder to support name and description #4334
• .NET: Skip OffThread observability test by @​rogerbarreto in .NET: Skip OffThread observability test #4399
• .NET: AzureAI Package - Skip tool validation when UseProvidedChatClientAsIs is true by @​rogerbarreto in .NET: AzureAI Package - Skip tool validation when UseProvidedChatClientAsIs is true #4389
• [BREAKING] Add response filter for store input in *Providers by @​westey-m in [BREAKING] Add response filter for store input in *Providers #4327
• .NET: [BREAKING] Change *Provider StateKey to list of StateKeys by @​westey-m in .NET: [BREAKING] Change *Provider StateKey to list of StateKeys #4395
• .NET: Updated Copilot SDK to the latest version by @​dmytrostruk in .NET: Updated Copilot SDK to the latest version #4406
• .NET: Disable OpenAIAssistant structured output integration tests by @​SergeyMenshykh in .NET: Disable OpenAIAssistant structured output integration tests #4451
• .NET: Update Azure.AI.Projects 2.0.0-beta.1 by @​rogerbarreto in .NET: Update Azure.AI.Projects 2.0.0-beta.1 #4270
• .NET: Skip flacky UT + (Attempt) Merge Gatekeeper fix by @​rogerbarreto in .NET: Skip flacky UT + (Attempt) Merge Gatekeeper fix  #4456
• .NET: Discover skill resources from directory instead of markdown links by @​SergeyMenshykh in .NET: Discover skill resources from directory instead of markdown links #4401
• .NET: Update package versions by @​dmytrostruk in .NET: Update package versions #4468
• .NET: Fixed CA1873 warning by @​dmytrostruk in .NET: Fixed CA1873 warning #4479

Full Changelog: dotnet-1.0.0-rc2...dotnet-1.0.0-rc3

1.0.0-rc2

What's Changed

• .NET: Add Foundry Memory Context Provider by @​rogerbarreto in .NET: Add Foundry Memory Context Provider #3522
• .NET: Replace inline string literals with constants in ChatHistoryMemoryProvider by @​westey-m in .NET: Replace inline string literals with constants in ChatHistoryMemoryProvider #4096
• .NET: Fix failing vision integration tests by using local test files by @​Copilot in .NET: Fix failing vision integration tests by using local test files #4128
• .NET: Support Agent Skills by @​SergeyMenshykh in .NET: Support Agent Skills #4122
• Added new GitHub action for manual integration test run based on PR by @​dmytrostruk in Added new GitHub action for manual integration test run based on PR #4135
• .NET: Simplify store=false scenario for responses by @​westey-m in .NET: Simplify store=false scenario for responses #4124
• .NET: Add Foundry Agents Tool Sample - Memory Search by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - Memory Search #3700
• .NET: [BREAKING] Add ChatClient decorator for calling AIContextProviders by @​westey-m in .NET: [BREAKING] Add ChatClient decorator for calling AIContextProviders #4097
• Updated GitHub action for manual integration tests by @​dmytrostruk in Updated GitHub action for manual integration tests #4147
• .NET: Fix Structured Output for agents configured with function middleware by @​SergeyMenshykh in .NET: Fix Structured Output for agents configured with function middleware #4179
• Make Cosmos DB tests read COSMOSDB_ENDPOINT and COSMOSDB_KEY from environment variables by @​Copilot in Make Cosmos DB tests read COSMOSDB_ENDPOINT and COSMOSDB_KEY from environment variables #4156
• .NET: Add Foundry Agents Tool Sample - Web Search by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - Web Search #4040
• .NET: Fix case-sensitive property mismatch in CosmosChatHistoryProvider queries by @​Copilot in .NET: Fix case-sensitive property mismatch in CosmosChatHistoryProvider queries #3485
• Revert devcontainer bug workaround by @​westey-m in Revert devcontainer bug workaround #4206
• .NET: Add Foundry Agents Tool Sample - Bing Custom Search by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - Bing Custom Search #3701
• .NET: Fix JSON arrays of objects parsed as empty records when no schema is defined by @​LEDazzio01 in .NET: Fix JSON arrays of objects parsed as empty records when no schema is defined #4199
• .NET: Implement Task support for A2A Hosting package by @​DeagleGross in .NET: Implement Task support for A2A Hosting package #3732
• Add Additional Properties ADR by @​westey-m in Add Additional Properties ADR #4246
• .NET: Add Foundry SharePoint Tool Sample by @​rogerbarreto in .NET: Add Foundry SharePoint Tool Sample #4227
• .NET: Update .NET package version to rc2 by @​dmytrostruk in .NET: Update .NET package version to rc2 #4257

Full Changelog: dotnet-1.0.0-rc1...dotnet-1.0.0-rc2

1.0.0-rc1

What's Changed

• .NET Workflows - Rename agent-provider and add comments (Declarative Workflows) by @​crickman in .NET Workflows - Rename agent-provider and add comments (Declarative Workflows) #3895
• .NET: [BREAKING] Add session StateBag for state storage and support multiple providers on the Agent by @​westey-m in .NET: [BREAKING] Add session StateBag for state storage and support multiple providers on the Agent #3806
• .NET: [Breaking] Structured Output improvements by @​SergeyMenshykh in .NET: [Breaking] Structured Output improvements #3761
• .NET: Add CreateSessionAsync overload with taskId for A2AAgent session resumption by @​Copilot in .NET: Add CreateSessionAsync overload with taskId for A2AAgent session resumption #3924
• .NET: Add skill to verify samples by @​westey-m in .NET: Add skill to verify samples #3931
• .NET: Fixes for bug bash. by @​westey-m in .NET: Fixes for bug bash. #3927
• .NET: [BREAKING] Refactor providers to move common functionality to base by @​westey-m in .NET: [BREAKING] Refactor providers to move common functionality to base #3900
• .NET: Surface downstream experimental flags and remove unnecessary suppressions by @​westey-m in .NET: Surface downstream experimental flags and remove unnecessary suppressions #3968
• .NET: [BREAKING] Replace Typed Base Providers with Composition by @​westey-m in .NET: [BREAKING] Replace Typed Base Providers with Composition #3988
• .NET: Fix sample resource path resolution by @​westey-m in .NET: Fix sample resource path resolution #3952
• .NET: Fixing some small issues from bugbash by @​westey-m in .NET: Fixing some small issues from bugbash #3961
• .NET: Improve session cast error message quality and consistency by @​westey-m in .NET: Improve session cast error message quality and consistency #3973
• .NET Workflows - Add unit tests for RequestExternalInputExecutor by @​Copilot in .NET Workflows - Add unit tests for RequestExternalInputExecutor #3891
• .NET Workflows - Add unit tests for ConditionGroupExecutor by @​Copilot in .NET Workflows - Add unit tests for ConditionGroupExecutor #3893
• .NET: Open an active item in Solution Explorer in VS Code automatically by @​SergeyMenshykh in .NET: NET: Open an active item in Solution Explorer in VS Code automatically #3992
• .NET Workflows - Add unit tests for QuestionExecutor by @​Copilot in .NET Workflows - Add unit tests for QuestionExecutor #3892
• .NET: Add additional build, test and project structure skills by @​westey-m in .NET: Add additional build, test and project structure skills #3987
• .NET: Update Microsoft.Agents.ObjectModel packages to 2026.2.2.1 by @​Copilot in .NET: Update Microsoft.Agents.ObjectModel packages to 2026.2.2.1 #4003
• .NET: Disable intermittently failing AzureAIAgentsPersistent integration tests by @​SergeyMenshykh in .NET: Disable intermittently failing AzureAIAgentsPersistent integration tests #3997
• .NET: Inline private RunCoreAsync into the protected one by @​SergeyMenshykh in .NET: Inline private RunCoreAsync into the protected one #3928
• .NET: Add Foundry Evaluation samples (Safety + Quality) by @​Copilot in .NET: Add Foundry Evaluation samples (Safety + Quality) #3697
• .NET: Fix MCP samples: update MCP SDK to 0.8.0-preview.1 and fix README references by @​SergeyMenshykh in .NET: Fix MCP samples: update MCP SDK to 0.8.0-preview.1 and fix README references #3959
• .NET: BREAKING: Unify AgentResponse[Update] events as WorkflowOutputEvents by @​lokitoth in .NET: BREAKING: Unify AgentResponse[Update] events as WorkflowOutputEvents #3441
• .NET: Support InvokeFunctionTool for declarative workflows by @​peibekwe in .NET: Support InvokeFunctionTool for declarative workflows #4014
• .NET: Fix FoundryAgents_Step15_ComputerUse sample for Azure Agents API by @​rogerbarreto in .NET: Fix FoundryAgents_Step15_ComputerUse sample for Azure Agents API #3989
• .NET: Add File Search Sample for Foundry Agents. by @​rogerbarreto in .NET: Add File Search Sample for Foundry Agents. #3990
• .NET: Fixes AgentWithHostedMCP chat fails: ErrorHTTP 404 (: 404) Resource not found by @​rogerbarreto in .NET: Fixes AgentWithHostedMCP chat fails: ErrorHTTP 404 (: 404) Resource not found #3856
• .NET: [BREAKING] Implement Polymorphic Routing by @​lokitoth in .NET: [BREAKING] Implement Polymorphic Routing #3792
• .NET: Fix CheckpointInfo.Parent always null in InProcessRunner by @​lokitoth in .NET: Fix CheckpointInfo.Parent always null in InProcessRunner #3812
• .NET: Update AdditionalAIContext sample with simplified implementation by @​westey-m in .NET: Update AdditionalAIContext sample with simplified implementation #4039
• .NET: Add Foundry Agents Tool Sample - OpenAPI Tools by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - OpenAPI Tools #3702
• [BREAKING] .NET: Decouple Checkpointing from Run/StreamAsync APIs by @​lokitoth in [BREAKING] .NET: Decouple Checkpointing from Run/StreamAsync APIs #4037
• .NET: Updated package versions for RC release by @​dmytrostruk in .NET: Updated package versions for RC release #4067
• .NET: Add tweaks to .net agent skills by @​westey-m in .NET: Add tweaks to .net agent skills #4081
• .NET: Support a message only AIContextProvider as an AIAgent Decorator by @​westey-m in .NET: Support a message only AIContextProvider as an AIAgent Decorator #4009
• .NET: Remove FunctionCalls and Tool Messages from Handoff passed messages by @​lokitoth in .NET: Remove FunctionCalls and Tool Messages from Handoff passed messages #3811
• .NET: Small fixes in README by @​dmytrostruk in .NET: Small fixes in README #4099
• .NET: [BREAKING] Workflows API Review Naming Changes (Part 1?) by @​lokitoth in .NET: [BREAKING] Workflows API Review Naming Changes (Part 1?) #4090

Full Changelog: dotnet-1.0.0-preview.260212.1...dotnet-1.0.0-rc1

1.0.0-preview.260209.1

What's Changed

• .NET: [BREAKING] Introduce Core implementation methods for session methods on AIAgent by @​westey-m in .NET: [BREAKING] Introduce Core implementation methods for session methods on AIAgent #3699
• .NET: [BREAKING] Add ability to mark the source of Agent request messages and use that for filtering by @​westey-m in .NET: [BREAKING] Add ability to mark the source of Agent request messages and use that for filtering #3540
• .NET: Workflow telemetry opt in by @​TaoChenOSU in .NET: Workflow telemetry opt in #3467
• .NET Pre-Publish - Update package version to 260209 by @​crickman in .NET Pre-Publish - Update package version to 260209 #3777

Full Changelog: dotnet-1.0.0-preview.260205.1...dotnet-1.0.0-preview.260209.1

1.0.0-preview.260205.1

What's Changed

• .NET: Consolidate durable agent samples into Durable/Agents folder by @​kshyju in .NET: Consolidate durable agent samples into Durable/Agents folder #3471
• .Net: Update Anthropic and Anthropic.Foundry package versions by @​Copilot in .Net: Update Anthropic and Anthropic.Foundry package versions #3517
• .NET: Workflows - Support fidelity when converting to and from ChatMessage in declarative workflows by @​peibekwe in .NET: Workflows - Support fidelity when converting to and from ChatMessage in declarative workflows #3505
• Update readme by @​dmytrostruk in Update readme #3576
• .NET: [BREAKING] Rename GetNewSession to CreateSession by @​westey-m in .NET: [BREAKING] Rename GetNewSession to CreateSession #3501
• .NET: [BREAKING] Move AgentSession.Serialize to AIAgent by @​westey-m in .NET: [BREAKING] Move AgentSession.Serialize to AIAgent #3650
• .NET: Improve unit test coverage for Microsoft.Agents.AI.Abstractions by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.Abstractions #3381
• .NET: Add .NET Anthropic Claude Skills sample by @​Copilot in .NET: Add .NET Anthropic Claude Skills sample #3497
• .NET: [BREAKING] Rename session state json param by @​westey-m in .NET: [BREAKING] Rename session state json param #3681
• .NET: Rename 3rdPartyThreadStorage sample to 3rdPartyChatHistoryStorage by @​westey-m in .NET: Rename 3rdPartyThreadStorage sample to 3rdPartyChatHistoryStorage #3643
• [BREAKING] Obsoleting ReflectingExecutor in favor of source gen by @​alliscode in [BREAKING] Obsoleting ReflectingExecutor in favor of source gen #3380
• .NET: Adding AgentRunContext to allow accessing agent run info in external downstream components by @​westey-m in .NET: Adding AgentRunContext to allow accessing agent run info in external downstream components #3476
• .NET: [BREAKING] Remove UserInputRequests property by @​westey-m in .NET: [BREAKING] Remove UserInputRequests property #3682
• .NET: Fix Error 404 Agent Hosted MCP by @​rogerbarreto in .NET: Fix Error 404 Agent Hosted MCP #3678
• .NET: [BREAKING] Provide agent and session to AIContextProvider & ChatHistoryProvider by @​westey-m in .NET: [BREAKING] Provide agent and session to AIContextProvider & ChatHistoryProvider #3695

Full Changelog: dotnet-1.0.0-preview.260128.1...dotnet-1.0.0-preview.260205.1

1.0.0-preview.260128.1

What's Changed

• .NET: Add tests for subworkflow shared state behavior by @​lokitoth in .NET: Add tests for subworkflow shared state behavior #3444
• .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI to 85.6% by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI to 85.6% #3383
• .Net: Adding copilot cli to the codespaces definition by @​rogerbarreto in .Net: Adding copilot cli to the codespaces definition #3479
• .NET: Python: [BREAKING] Renamed Github to GitHub by @​dmytrostruk in .NET: Python: [BREAKING] Renamed Github to GitHub #3486
• .NET - [Breaking]: Update Declarative Object Model + Dependencies by @​crickman in .NET - [Breaking]: Update Declarative Object Model + Dependencies #3017

Full Changelog: dotnet-1.0.0-preview.260127.1...dotnet-1.0.0-preview.260128.1

1.0.0-preview.260127.1

What's Changed

• .NET: Adding feature collections ADR by @​westey-m in .NET: Adding feature collections ADR #3332
• .NET: [Breaking] Allow passing auth token credential to cosmosdb extensions by @​SergeyMenshykh in .NET: [Breaking] Allow passing auth token credential to cosmosdb extensions #3250
• .NET: [BREAKING] fix: Subworkflows do not work well with Chat Protocol and Checkpointing by @​lokitoth in .NET: [BREAKING] fix: Subworkflows do not work well with Chat Protocol and Checkpointing #3240
• .NET: Joslat fix sample issue by @​joslat in .NET: Joslat fix sample issue #3270
• .NET: Improve unit test coverage for Microsoft.Agents.AI.OpenAI by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.OpenAI #3349
• .NET: Expose Executor Binding Metadata from Workflows by @​kshyju in .NET: Expose Executor Binding Metadata from Workflows #3389
• .NET: Allow overriding the ChatMessageStore to be used per agent run. by @​westey-m in .NET: Allow overriding the ChatMessageStore to be used per agent run. #3330
• Update instructions to require automatically building and formatting by @​westey-m in Update instructions to require automatically building and formatting #3412
• .NET: [BREAKING] Rename ChatMessageStore to ChatHistoryProvider by @​westey-m in .NET: [BREAKING] Rename ChatMessageStore to ChatHistoryProvider #3375
• .NET: [BREAKING] feat: Improve Agent hosting inside Workflows by @​lokitoth in .NET: [BREAKING] feat: Improve Agent hosting inside Workflows #3142
• .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI.Persistent by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI.Persistent #3384
• .NET: Improve unit test coverage for Microsoft.Agents.AI.Anthropic by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.Anthropic #3382
• Workaround for devcontainer expired key issue by @​westey-m in Workaround for devcontainer expired key issue #3432
• .NET: [BREAKING] Rename AgentThread to AgentSession by @​westey-m in .NET: [BREAKING] Rename AgentThread to AgentSession #3430
• .NET: ci: Unblock Merge queue by disabling DurableTask TTL tests by @​lokitoth in .NET: ci: Unblock Merge queue by disabling DurableTask TTL tests #3464
• .NET: Updated package versions by @​dmytrostruk in .NET: Updated package versions #3459
• .NET: Add AIAgent implementation for GitHub Copilot SDK by @​Copilot in .NET: Add AIAgent implementation for GitHub Copilot SDK #3395
• .NET: Expose metadata from A2AAgent and seal AIAgentMetadata by @​westey-m in .NET: Expose metadata from A2AAgent and seal AIAgentMetadata #3417
• .NET: fix: FileSystemJsonCheckpointStore does not flush to disk on Checkpoint creation by @​lokitoth in .NET: fix: FileSystemJsonCheckpointStore does not flush to disk on Checkpoint creation #3439
• .NET: Added GitHub Copilot project to release solution file by @​dmytrostruk in .NET: Added GitHub Copilot project to release solution file #3468
• Add C# GroupChat tool approval sample for multi-agent orchestrations by @​Copilot in Add C# GroupChat tool approval sample for multi-agent orchestrations #3374

1.0.0-preview.260121.1

What's Changed

• .NET: [BREAKING] Change GetNewThread and DeserializeThread to async by @​westey-m in .NET: [BREAKING] Change GetNewThread and DeserializeThread to async #3152
• .NET: Improve resolving AITool from DI by @​DeagleGross in .NET: Improve resolving AITool from DI #3175
• .NET: Properly point agentCard to agent endpoint by @​DeagleGross in .NET: Properly point agentCard to agent endpoint #3176
• .NET: Implement IReadOnlyList on InMemoryChatMessageStore by @​westey-m in .NET: Implement IReadOnlyList on InMemoryChatMessageStore #3205
• .NET: Make ChatMessageStore and AIContextProvider context props settable by @​westey-m in .NET: Make ChatMessageStore and AIContextProvider context props settable #3196
• .NET: [Breaking] RenameAgentRunResponse and AgentRunResponseUpdate classes by @​SergeyMenshykh in .NET: [Breaking] RenameAgentRunResponse and AgentRunResponseUpdate classes #3197
• .NET: [Breaking] Rename AgentRunResponseEvent and AgentRunUpdateEvent classes by @​SergeyMenshykh in .NET: [Breaking] Rename AgentRunResponseEvent and AgentRunUpdateEvent classes #3214
• .NET: Merge AgentRunOptions.AdditionalProperties into ChatOptions.AdditionalProperties by @​westey-m in .NET: Merge AgentRunOptions.AdditionalProperties into ChatOptions.AdditionalProperties #3184
• .NET: Update Google.GenAI to 0.11.0 and remove polyfill implementations by @​Copilot in .NET: Update Google.GenAI to 0.11.0 and remove polyfill implementations #3232
• .NET: [BREAKING] Renamed CreateAIAgent/GetAIAgent to AsAIAgent by @​dmytrostruk in .NET: [BREAKING] Renamed CreateAIAgent/GetAIAgent to AsAIAgent #3222
• .NET Purview Middleware: Improve Background Job Runner Injection by @​eoindoherty1 in .NET Purview Middleware: Improve Background Job Runner Injection #3256
• .NET: Delete sync extension methods for agent by @​westey-m in .NET: Delete sync extension methods for agent #3291
• .NET: Update Microsoft.Extensions.AI.* packages to 10.2.0 by @​Copilot in .NET: Update Microsoft.Extensions.AI.* packages to 10.2.0 #3211
• .NET: Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool by @​westey-m in .NET: Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool #3219
• .NET: Durable Agent samples and automated validation for non-Azure Functions by @​cgillum in .NET: Durable Agent samples and automated validation for non-Azure Functions #3042
• .NET: Add sample to show multiple AIContextProvider usage by @​westey-m in .NET: Add sample to show multiple AIContextProvider usage #3284
• .Net: Fix DebuggerDisplay attribute to reference existing property by @​Copilot in .Net: Fix DebuggerDisplay attribute to reference existing property #3326
• .NET: Update Conversation Sample to use Conversation Id instead by @​rogerbarreto in .NET: Update Conversation Sample to use Conversation Id instead #3180
• .NET: Improve readme for agents V2 by @​rogerbarreto in .NET: Improve readme for agents V2 #3285
• .NET: Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties by @​Copilot in .NET: Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties #2985

Full Changelog: dotnet-1.0.0-preview.260108.1...dotnet-1.0.0-preview.260121.1

1.0.0-preview.260108.1

What's Changed

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

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

Commits viewable in compare view.

Sourced from Microsoft.Agents.AI's releases.

1.0.0-rc4

What's Changed

• .NET: bug fix for duplicate output on GitHubCopilotAgent by @​normalian in .NET: bug fix for duplicate output on GitHubCopilotAgent #3981
• .NET: Increase credential timeout for Integration Tests by @​westey-m in .NET: Increase credential timeout for Integration Tests #4472
• .NET: Add foundry extension samples for dotnet by @​yaoleo34 in .NET: Add foundry extension samples for dotnet #4359
• .NET: CI Build time end to end improvement by @​westey-m in .NET: CI Build time end to end improvement #4208
• .NET: Switch auth sample to use Singletons by @​westey-m in .NET: Switch auth sample to use Singletons #4454
• .NET: Add ServiceLifetime support for Hosting DI registration by @​westey-m in .NET: Add ServiceLifetime support for Hosting DI registration #4476
• .NET: Fix filter combine logic for ChatHistoryMemoryProvider by @​westey-m in .NET: Fix filter combine logic for ChatHistoryMemoryProvider #4501
• .NET: Update HostedAgents samples to Azure.AI.AgentServer.AgentFramework 1.0.0-beta.9 and MEAI 10.3.0 by @​Copilot in .NET: Update HostedAgents samples to Azure.AI.AgentServer.AgentFramework 1.0.0-beta.9 and MEAI 10.3.0 #4477
• .NET: Improve skill name validation: reject consecutive hyphens and enforce directory name match by @​SergeyMenshykh in .NET: Improve skill name validation: reject consecutive hyphens and enforce directory name match #4526
• .NET: Create a sample to show bounded chat history with overflow into chat history memory by @​westey-m in .NET: Create a sample to show bounded chat history with overflow into chat history memory #4136
• .NET: Update Anthropic to 12.8.0 and Anthropic.Foundry to 0.4.2 by @​Copilot in .NET: Update Anthropic to 12.8.0 and Anthropic.Foundry to 0.4.2 #4475
• .NET: Add security warnings to xml comments for core components by @​westey-m in .NET: Add security warnings to xml comments for core components #4527
• Auto-finalize ResponseStream on iteration completion by @​giles17 in Auto-finalize ResponseStream on iteration completion #4478
• .NET: Skip Azure Persistent (V1) flaky CodeInterpreter integration tests by @​rogerbarreto in .NET: Skip Azure Persistent (V1) flaky CodeInterpreter integration tests #4583
• .NET: Enable Microsoft.Agents.AI.FoundryMemory for NuGet release by @​rogerbarreto in .NET: Enable Microsoft.Agents.AI.FoundryMemory for NuGet release #4559
• Fix Strands Agents documentation links in ADR by @​Copilot in Fix Strands Agents documentation links in ADR #4584
• .NET: Cleanup unnecessary usages of AsIChatClient by @​westey-m in .NET: Cleanup unnecessary usages of AsIChatClient #4561
• .NET: Added support for polymorphic type as workflow output by @​peibekwe in .NET: Added support for polymorphic type as workflow output #4485
• .NET Compaction - Introducing compaction strategies and pipeline by @​crickman in .NET Compaction - Introducing compaction strategies and pipeline #4533
• .NET: SDK Patch Bump (10.0.200) - Address false positive trigger of IL2026/IL3050 diagnostics in hosting projects by @​rogerbarreto in .NET: SDK Patch Bump (10.0.200) - Address false positive trigger of IL2026/IL3050 diagnostics in hosting projects #4586
• .NET: Add FinishReason to AgentResponses by @​westey-m in .NET: Add FinishReason to AgentResponses #4617
• .NET: Updated package versions by @​dmytrostruk in .NET: Updated package versions #4632
• .NET: Fixed CA1873 warning by @​dmytrostruk in .NET: Fixed CA1873 warning #4634

New Contributors

• @​normalian made their first contribution in .NET: bug fix for duplicate output on GitHubCopilotAgent #3981
• @​yaoleo34 made their first contribution in .NET: Add foundry extension samples for dotnet #4359

Full Changelog: dotnet-1.0.0-rc3...dotnet-1.0.0-rc4

1.0.0-rc3

What's Changed

• .NET: Support hosted code interpreter for skill script execution by @​SergeyMenshykh in .NET: Support hosted code interpreter for skill script execution #4192
• .NET: AgentThread serialization alternatives ADR by @​westey-m in .NET: AgentThread serialization alternatives ADR #3062
• .NET: Add helpers to more easily access in-memory ChatHistory and make ChatHistoryProvider management more configurable. by @​westey-m in .NET: Add helpers to more easily access in-memory ChatHistory and make ChatHistoryProvider management more configurable. #4224
• .Net: Add additional Hosted Agent Samples by @​rogerbarreto in .Net: Add additional Hosted Agent Samples #4325
• .NET: Revert ".NET: Support hosted code interpreter for skill script execution" by @​SergeyMenshykh in .NET: Revert ".NET: Support hosted code interpreter for skill script execution" #4385
• .NET: Fixing issue with invalid node Ids when visualizing dotnet workflows. by @​alliscode in .NET: Fixing issue with invalid node Ids when visualizing dotnet workflows. #4269
• .NET: Fix FileAgentSkillsProvider custom SkillsInstructionPrompt silently dropping skills by @​SergeyMenshykh in .NET: Fix FileAgentSkillsProvider custom SkillsInstructionPrompt silently dropping skills #4388
• .NET: AuthN & AuthZ sample with asp.net service and web client by @​westey-m in .NET: AuthN & AuthZ sample with asp.net service and web client #4354
• .NET: Update GroupChat workflow builder to support name and description by @​peibekwe in .NET: Update GroupChat workflow builder to support name and description #4334
• .NET: Skip OffThread observability test by @​rogerbarreto in .NET: Skip OffThread observability test #4399
• .NET: AzureAI Package - Skip tool validation when UseProvidedChatClientAsIs is true by @​rogerbarreto in .NET: AzureAI Package - Skip tool validation when UseProvidedChatClientAsIs is true #4389
• [BREAKING] Add response filter for store input in *Providers by @​westey-m in [BREAKING] Add response filter for store input in *Providers #4327
• .NET: [BREAKING] Change *Provider StateKey to list of StateKeys by @​westey-m in .NET: [BREAKING] Change *Provider StateKey to list of StateKeys #4395
• .NET: Updated Copilot SDK to the latest version by @​dmytrostruk in .NET: Updated Copilot SDK to the latest version #4406
• .NET: Disable OpenAIAssistant structured output integration tests by @​SergeyMenshykh in .NET: Disable OpenAIAssistant structured output integration tests #4451
• .NET: Update Azure.AI.Projects 2.0.0-beta.1 by @​rogerbarreto in .NET: Update Azure.AI.Projects 2.0.0-beta.1 #4270
• .NET: Skip flacky UT + (Attempt) Merge Gatekeeper fix by @​rogerbarreto in .NET: Skip flacky UT + (Attempt) Merge Gatekeeper fix  #4456
• .NET: Discover skill resources from directory instead of markdown links by @​SergeyMenshykh in .NET: Discover skill resources from directory instead of markdown links #4401
• .NET: Update package versions by @​dmytrostruk in .NET: Update package versions #4468
• .NET: Fixed CA1873 warning by @​dmytrostruk in .NET: Fixed CA1873 warning #4479

Full Changelog: dotnet-1.0.0-rc2...dotnet-1.0.0-rc3

1.0.0-rc2

What's Changed

• .NET: Add Foundry Memory Context Provider by @​rogerbarreto in .NET: Add Foundry Memory Context Provider #3522
• .NET: Replace inline string literals with constants in ChatHistoryMemoryProvider by @​westey-m in .NET: Replace inline string literals with constants in ChatHistoryMemoryProvider #4096
• .NET: Fix failing vision integration tests by using local test files by @​Copilot in .NET: Fix failing vision integration tests by using local test files #4128
• .NET: Support Agent Skills by @​SergeyMenshykh in .NET: Support Agent Skills #4122
• Added new GitHub action for manual integration test run based on PR by @​dmytrostruk in Added new GitHub action for manual integration test run based on PR #4135
• .NET: Simplify store=false scenario for responses by @​westey-m in .NET: Simplify store=false scenario for responses #4124
• .NET: Add Foundry Agents Tool Sample - Memory Search by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - Memory Search #3700
• .NET: [BREAKING] Add ChatClient decorator for calling AIContextProviders by @​westey-m in .NET: [BREAKING] Add ChatClient decorator for calling AIContextProviders #4097
• Updated GitHub action for manual integration tests by @​dmytrostruk in Updated GitHub action for manual integration tests #4147
• .NET: Fix Structured Output for agents configured with function middleware by @​SergeyMenshykh in .NET: Fix Structured Output for agents configured with function middleware #4179
• Make Cosmos DB tests read COSMOSDB_ENDPOINT and COSMOSDB_KEY from environment variables by @​Copilot in Make Cosmos DB tests read COSMOSDB_ENDPOINT and COSMOSDB_KEY from environment variables #4156
• .NET: Add Foundry Agents Tool Sample - Web Search by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - Web Search #4040
• .NET: Fix case-sensitive property mismatch in CosmosChatHistoryProvider queries by @​Copilot in .NET: Fix case-sensitive property mismatch in CosmosChatHistoryProvider queries #3485
• Revert devcontainer bug workaround by @​westey-m in Revert devcontainer bug workaround #4206
• .NET: Add Foundry Agents Tool Sample - Bing Custom Search by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - Bing Custom Search #3701
• .NET: Fix JSON arrays of objects parsed as empty records when no schema is defined by @​LEDazzio01 in .NET: Fix JSON arrays of objects parsed as empty records when no schema is defined #4199
• .NET: Implement Task support for A2A Hosting package by @​DeagleGross in .NET: Implement Task support for A2A Hosting package #3732
• Add Additional Properties ADR by @​westey-m in Add Additional Properties ADR #4246
• .NET: Add Foundry SharePoint Tool Sample by @​rogerbarreto in .NET: Add Foundry SharePoint Tool Sample #4227
• .NET: Update .NET package version to rc2 by @​dmytrostruk in .NET: Update .NET package version to rc2 #4257

Full Changelog: dotnet-1.0.0-rc1...dotnet-1.0.0-rc2

1.0.0-rc1

What's Changed

• .NET Workflows - Rename agent-provider and add comments (Declarative Workflows) by @​crickman in .NET Workflows - Rename agent-provider and add comments (Declarative Workflows) #3895
• .NET: [BREAKING] Add session StateBag for state storage and support multiple providers on the Agent by @​westey-m in .NET: [BREAKING] Add session StateBag for state storage and support multiple providers on the Agent #3806
• .NET: [Breaking] Structured Output improvements by @​SergeyMenshykh in .NET: [Breaking] Structured Output improvements #3761
• .NET: Add CreateSessionAsync overload with taskId for A2AAgent session resumption by @​Copilot in .NET: Add CreateSessionAsync overload with taskId for A2AAgent session resumption #3924
• .NET: Add skill to verify samples by @​westey-m in .NET: Add skill to verify samples #3931
• .NET: Fixes for bug bash. by @​westey-m in .NET: Fixes for bug bash. #3927
• .NET: [BREAKING] Refactor providers to move common functionality to base by @​westey-m in .NET: [BREAKING] Refactor providers to move common functionality to base #3900
• .NET: Surface downstream experimental flags and remove unnecessary suppressions by @​westey-m in .NET: Surface downstream experimental flags and remove unnecessary suppressions #3968
• .NET: [BREAKING] Replace Typed Base Providers with Composition by @​westey-m in .NET: [BREAKING] Replace Typed Base Providers with Composition #3988
• .NET: Fix sample resource path resolution by @​westey-m in .NET: Fix sample resource path resolution #3952
• .NET: Fixing some small issues from bugbash by @​westey-m in .NET: Fixing some small issues from bugbash #3961
• .NET: Improve session cast error message quality and consistency by @​westey-m in .NET: Improve session cast error message quality and consistency #3973
• .NET Workflows - Add unit tests for RequestExternalInputExecutor by @​Copilot in .NET Workflows - Add unit tests for RequestExternalInputExecutor #3891
• .NET Workflows - Add unit tests for ConditionGroupExecutor by @​Copilot in .NET Workflows - Add unit tests for ConditionGroupExecutor #3893
• .NET: Open an active item in Solution Explorer in VS Code automatically by @​SergeyMenshykh in .NET: NET: Open an active item in Solution Explorer in VS Code automatically #3992
• .NET Workflows - Add unit tests for QuestionExecutor by @​Copilot in .NET Workflows - Add unit tests for QuestionExecutor #3892
• .NET: Add additional build, test and project structure skills by @​westey-m in .NET: Add additional build, test and project structure skills #3987
• .NET: Update Microsoft.Agents.ObjectModel packages to 2026.2.2.1 by @​Copilot in .NET: Update Microsoft.Agents.ObjectModel packages to 2026.2.2.1 #4003
• .NET: Disable intermittently failing AzureAIAgentsPersistent integration tests by @​SergeyMenshykh in .NET: Disable intermittently failing AzureAIAgentsPersistent integration tests #3997
• .NET: Inline private RunCoreAsync into the protected one by @​SergeyMenshykh in .NET: Inline private RunCoreAsync into the protected one #3928
• .NET: Add Foundry Evaluation samples (Safety + Quality) by @​Copilot in .NET: Add Foundry Evaluation samples (Safety + Quality) #3697
• .NET: Fix MCP samples: update MCP SDK to 0.8.0-preview.1 and fix README references by @​SergeyMenshykh in .NET: Fix MCP samples: update MCP SDK to 0.8.0-preview.1 and fix README references #3959
• .NET: BREAKING: Unify AgentResponse[Update] events as WorkflowOutputEvents by @​lokitoth in .NET: BREAKING: Unify AgentResponse[Update] events as WorkflowOutputEvents #3441
• .NET: Support InvokeFunctionTool for declarative workflows by @​peibekwe in .NET: Support InvokeFunctionTool for declarative workflows #4014
• .NET: Fix FoundryAgents_Step15_ComputerUse sample for Azure Agents API by @​rogerbarreto in .NET: Fix FoundryAgents_Step15_ComputerUse sample for Azure Agents API #3989
• .NET: Add File Search Sample for Foundry Agents. by @​rogerbarreto in .NET: Add File Search Sample for Foundry Agents. #3990
• .NET: Fixes AgentWithHostedMCP chat fails: ErrorHTTP 404 (: 404) Resource not found by @​rogerbarreto in .NET: Fixes AgentWithHostedMCP chat fails: ErrorHTTP 404 (: 404) Resource not found #3856
• .NET: [BREAKING] Implement Polymorphic Routing by @​lokitoth in .NET: [BREAKING] Implement Polymorphic Routing #3792
• .NET: Fix CheckpointInfo.Parent always null in InProcessRunner by @​lokitoth in .NET: Fix CheckpointInfo.Parent always null in InProcessRunner #3812
• .NET: Update AdditionalAIContext sample with simplified implementation by @​westey-m in .NET: Update AdditionalAIContext sample with simplified implementation #4039
• .NET: Add Foundry Agents Tool Sample - OpenAPI Tools by @​rogerbarreto in .NET: Add Foundry Agents Tool Sample - OpenAPI Tools #3702
• [BREAKING] .NET: Decouple Checkpointing from Run/StreamAsync APIs by @​lokitoth in [BREAKING] .NET: Decouple Checkpointing from Run/StreamAsync APIs #4037
• .NET: Updated package versions for RC release by @​dmytrostruk in .NET: Updated package versions for RC release #4067
• .NET: Add tweaks to .net agent skills by @​westey-m in .NET: Add tweaks to .net agent skills #4081
• .NET: Support a message only AIContextProvider as an AIAgent Decorator by @​westey-m in .NET: Support a message only AIContextProvider as an AIAgent Decorator #4009
• .NET: Remove FunctionCalls and Tool Messages from Handoff passed messages by @​lokitoth in .NET: Remove FunctionCalls and Tool Messages from Handoff passed messages #3811
• .NET: Small fixes in README by @​dmytrostruk in .NET: Small fixes in README #4099
• .NET: [BREAKING] Workflows API Review Naming Changes (Part 1?) by @​lokitoth in .NET: [BREAKING] Workflows API Review Naming Changes (Part 1?) #4090

Full Changelog: dotnet-1.0.0-preview.260212.1...dotnet-1.0.0-rc1

1.0.0-preview.260209.1

What's Changed

• .NET: [BREAKING] Introduce Core implementation methods for session methods on AIAgent by @​westey-m in .NET: [BREAKING] Introduce Core implementation methods for session methods on AIAgent #3699
• .NET: [BREAKING] Add ability to mark the source of Agent request messages and use that for filtering by @​westey-m in .NET: [BREAKING] Add ability to mark the source of Agent request messages and use that for filtering #3540
• .NET: Workflow telemetry opt in by @​TaoChenOSU in .NET: Workflow telemetry opt in #3467
• .NET Pre-Publish - Update package version to 260209 by @​crickman in .NET Pre-Publish - Update package version to 260209 #3777

Full Changelog: dotnet-1.0.0-preview.260205.1...dotnet-1.0.0-preview.260209.1

1.0.0-preview.260205.1

What's Changed

• .NET: Consolidate durable agent samples into Durable/Agents folder by @​kshyju in .NET: Consolidate durable agent samples into Durable/Agents folder #3471
• .Net: Update Anthropic and Anthropic.Foundry package versions by @​Copilot in .Net: Update Anthropic and Anthropic.Foundry package versions #3517
• .NET: Workflows - Support fidelity when converting to and from ChatMessage in declarative workflows by @​peibekwe in .NET: Workflows - Support fidelity when converting to and from ChatMessage in declarative workflows #3505
• Update readme by @​dmytrostruk in Update readme #3576
• .NET: [BREAKING] Rename GetNewSession to CreateSession by @​westey-m in .NET: [BREAKING] Rename GetNewSession to CreateSession #3501
• .NET: [BREAKING] Move AgentSession.Serialize to AIAgent by @​westey-m in .NET: [BREAKING] Move AgentSession.Serialize to AIAgent #3650
• .NET: Improve unit test coverage for Microsoft.Agents.AI.Abstractions by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.Abstractions #3381
• .NET: Add .NET Anthropic Claude Skills sample by @​Copilot in .NET: Add .NET Anthropic Claude Skills sample #3497
• .NET: [BREAKING] Rename session state json param by @​westey-m in .NET: [BREAKING] Rename session state json param #3681
• .NET: Rename 3rdPartyThreadStorage sample to 3rdPartyChatHistoryStorage by @​westey-m in .NET: Rename 3rdPartyThreadStorage sample to 3rdPartyChatHistoryStorage #3643
• [BREAKING] Obsoleting ReflectingExecutor in favor of source gen by @​alliscode in [BREAKING] Obsoleting ReflectingExecutor in favor of source gen #3380
• .NET: Adding AgentRunContext to allow accessing agent run info in external downstream components by @​westey-m in .NET: Adding AgentRunContext to allow accessing agent run info in external downstream components #3476
• .NET: [BREAKING] Remove UserInputRequests property by @​westey-m in .NET: [BREAKING] Remove UserInputRequests property #3682
• .NET: Fix Error 404 Agent Hosted MCP by @​rogerbarreto in .NET: Fix Error 404 Agent Hosted MCP #3678
• .NET: [BREAKING] Provide agent and session to AIContextProvider & ChatHistoryProvider by @​westey-m in .NET: [BREAKING] Provide agent and session to AIContextProvider & ChatHistoryProvider #3695

Full Changelog: dotnet-1.0.0-preview.260128.1...dotnet-1.0.0-preview.260205.1

1.0.0-preview.260128.1

What's Changed

• .NET: Add tests for subworkflow shared state behavior by @​lokitoth in .NET: Add tests for subworkflow shared state behavior #3444
• .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI to 85.6% by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI to 85.6% #3383
• .Net: Adding copilot cli to the codespaces definition by @​rogerbarreto in .Net: Adding copilot cli to the codespaces definition #3479
• .NET: Python: [BREAKING] Renamed Github to GitHub by @​dmytrostruk in .NET: Python: [BREAKING] Renamed Github to GitHub #3486
• .NET - [Breaking]: Update Declarative Object Model + Dependencies by @​crickman in .NET - [Breaking]: Update Declarative Object Model + Dependencies #3017

Full Changelog: dotnet-1.0.0-preview.260127.1...dotnet-1.0.0-preview.260128.1

1.0.0-preview.260127.1

What's Changed

• .NET: Adding feature collections ADR by @​westey-m in .NET: Adding feature collections ADR #3332
• .NET: [Breaking] Allow passing auth token credential to cosmosdb extensions by @​SergeyMenshykh in .NET: [Breaking] Allow passing auth token credential to cosmosdb extensions #3250
• .NET: [BREAKING] fix: Subworkflows do not work well with Chat Protocol and Checkpointing by @​lokitoth in .NET: [BREAKING] fix: Subworkflows do not work well with Chat Protocol and Checkpointing #3240
• .NET: Joslat fix sample issue by @​joslat in .NET: Joslat fix sample issue #3270
• .NET: Improve unit test coverage for Microsoft.Agents.AI.OpenAI by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.OpenAI #3349
• .NET: Expose Executor Binding Metadata from Workflows by @​kshyju in .NET: Expose Executor Binding Metadata from Workflows #3389
• .NET: Allow overriding the ChatMessageStore to be used per agent run. by @​westey-m in .NET: Allow overriding the ChatMessageStore to be used per agent run. #3330
• Update instructions to require automatically building and formatting by @​westey-m in Update instructions to require automatically building and formatting #3412
• .NET: [BREAKING] Rename ChatMessageStore to ChatHistoryProvider by @​westey-m in .NET: [BREAKING] Rename ChatMessageStore to ChatHistoryProvider #3375
• .NET: [BREAKING] feat: Improve Agent hosting inside Workflows by @​lokitoth in .NET: [BREAKING] feat: Improve Agent hosting inside Workflows #3142
• .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI.Persistent by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.AzureAI.Persistent #3384
• .NET: Improve unit test coverage for Microsoft.Agents.AI.Anthropic by @​Copilot in .NET: Improve unit test coverage for Microsoft.Agents.AI.Anthropic #3382
• Workaround for devcontainer expired key issue by @​westey-m in Workaround for devcontainer expired key issue #3432
• .NET: [BREAKING] Rename AgentThread to AgentSession by @​westey-m in .NET: [BREAKING] Rename AgentThread to AgentSession #3430
• .NET: ci: Unblock Merge queue by disabling DurableTask TTL tests by @​lokitoth in .NET: ci: Unblock Merge queue by disabling DurableTask TTL tests #3464
• .NET: Updated package versions by @​dmytrostruk in .NET: Updated package versions #3459
• .NET: Add AIAgent implementation for GitHub Copilot SDK by @​Copilot in .NET: Add AIAgent implementation for GitHub Copilot SDK #3395
• .NET: Expose metadata from A2AAgent and seal AIAgentMetadata by @​westey-m in .NET: Expose metadata from A2AAgent and seal AIAgentMetadata #3417
• .NET: fix: FileSystemJsonCheckpointStore does not flush to disk on Checkpoint creation by @​lokitoth in .NET: fix: FileSystemJsonCheckpointStore does not flush to disk on Checkpoint creation #3439
• .NET: Added GitHub Copilot project to release solution file by @​dmytrostruk in .NET: Added GitHub Copilot project to release solution file #3468
• Add C# GroupChat tool approval sample for multi-agent orchestrations by @​Copilot in Add C# GroupChat tool approval sample for multi-agent orchestrations #3374

1.0.0-preview.260121.1

What's Changed

• .NET: [BREAKING] Change GetNewThread and DeserializeThread to async by @​westey-m in .NET: [BREAKING] Change GetNewThread and DeserializeThread to async #3152
• .NET: Improve resolving AITool from DI by @​DeagleGross in .NET: Improve resolving AITool from DI #3175
• .NET: Properly point agentCard to agent endpoint by @​DeagleGross in .NET: Properly point agentCard to agent endpoint #3176
• .NET: Implement IReadOnlyList on InMemoryChatMessageStore by @​westey-m in .NET: Implement IReadOnlyList on InMemoryChatMessageStore #3205
• .NET: Make ChatMessageStore and AIContextProvider context props settable by @​westey-m in .NET: Make ChatMessageStore and AIContextProvider context props settable #3196
• .NET: [Breaking] RenameAgentRunResponse and AgentRunResponseUpdate classes by @​SergeyMenshykh in .NET: [Breaking] RenameAgentRunResponse and AgentRunResponseUpdate classes #3197
• .NET: [Breaking] Rename AgentRunResponseEvent and AgentRunUpdateEvent classes by @​SergeyMenshykh in .NET: [Breaking] Rename AgentRunResponseEvent and AgentRunUpdateEvent classes #3214
• .NET: Merge AgentRunOptions.AdditionalProperties into ChatOptions.AdditionalProperties by @​westey-m in .NET: Merge AgentRunOptions.AdditionalProperties into ChatOptions.AdditionalProperties #3184
• .NET: Update Google.GenAI to 0.11.0 and remove polyfill implementations by @​Copilot in .NET: Update Google.GenAI to 0.11.0 and remove polyfill implementations #3232
• .NET: [BREAKING] Renamed CreateAIAgent/GetAIAgent to AsAIAgent by @​dmytrostruk in .NET: [BREAKING] Renamed CreateAIAgent/GetAIAgent to AsAIAgent #3222
• .NET Purview Middleware: Improve Background Job Runner Injection by @​eoindoherty1 in .NET Purview Middleware: Improve Background Job Runner Injection #3256
• .NET: Delete sync extension methods for agent by @​westey-m in .NET: Delete sync extension methods for agent #3291
• .NET: Update Microsoft.Extensions.AI.* packages to 10.2.0 by @​Copilot in .NET: Update Microsoft.Extensions.AI.* packages to 10.2.0 #3211
• .NET: Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool by @​westey-m in .NET: Pass AdditionalProperties from parent to child when exposing an agent as a FunctionTool #3219
• .NET: Durable Agent samples and automated validation for non-Azure Functions by @​cgillum in .NET: Durable Agent samples and automated validation for non-Azure Functions #3042
• .NET: Add sample to show multiple AIContextProvider usage by @​westey-m in .NET: Add sample to show multiple AIContextProvider usage #3284
• .Net: Fix DebuggerDisplay attribute to reference existing property by @​Copilot in .Net: Fix DebuggerDisplay attribute to reference existing property #3326
• .NET: Update Conversation Sample to use Conversation Id instead by @​rogerbarreto in .NET: Update Conversation Sample to use Conversation Id instead #3180
• .NET: Improve readme for agents V2 by @​rogerbarreto in .NET: Improve readme for agents V2 #3285
• .NET: Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties by @​Copilot in .NET: Fix DebuggerDisplay attribute in AIAgent.cs to reference existing properties #2985

Full Changelog: dotnet-1.0.0-preview.260108.1...dotnet-1.0.0-preview.260121.1

1.0.0-preview.260108.1

What's Changed

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

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

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