dotnet-1.22.0

What's Changed

• .NET: fix: race concdition in workflow formula state by Vincent Biret (@baywet) in #8252
• .NET: update remaining dependencies by Vincent Biret (@baywet) in #8307
• .NET: fix: inspect for delemiter value before adding headers by Vincent Biret (@baywet) in #8301
• docs: fix 'availble' typo in ADR 0001 by mrchatam in #8325
• .NET: docs: use 'a FunctionApprovalRequestContent' in ADR 0006 by mrchatam in #8322
• .NET: docs: fix 'valueable' typo in ADR 0001 by mrchatam in #8318
• .NET: docs: remove duplicate 'turns' in ADR 0006 by mrchatam in #8317
• .NET: docs: fix 'extention' typo in ADR 0001 by mrchatam in #8316
• docs: fix 'allow to' grammar in ADR 0011 by mrchatam in #8335
• Improve issue triage by Evan Mattson (@moonbox3) in #8362
• .NET: expose OpenTelemetryAgent.DefaultSourceName by Yashvant Mahadev Hange (@YashvantHange) in #7815
• .NET: Temporarily skip flaky steering harness session reuse test by Roger Barreto (@rogerbarreto) with @Copilot in #8377
• .NET: [PREVIEW BREAKING] Promote AgentSessionStore into Agents.AI.Abstractions by Roger Barreto (@rogerbarreto) in #7991
• .NET: Preserve hosted session key boundaries by Ricky-7-Yan in #8263
• .NET: Preserve cached and reasoning token counts in Foundry Hosting by Manjunath Janardhan (@manjunathshiva) in #8334
• .NET: [BREAKING] Improve replay support with Approval Binding by westey (@westey-m) in #8375
• .NET: fix: uri canonization in workflow http handler by Vincent Biret (@baywet) in #8406
• .NET: tests(workflows): adds a regression test for cookie jar handling in redirection by Vincent Biret (@baywet) in #8427
• .NET: Add AsIChatClient extension to expose an AIAgent as an IChatClient by Tomas Rampas (@tomas-rampas) in #7687
• .NET/Python: Refine skill frontmatter parsing by SergeyMenshykh in #8430
• .NET/Python: Add more content types to purview handling by westey (@westey-m) in #8370
• .NET: [BREAKING] Scope provider-backed MCP sessions per invocation by Jose Alvarez (@jpalvarezl) in #8425
• .NET: Add per-tool AgentModeProvider controls by westey (@westey-m) in #8458
• .NET: Clarify Agent Skills caching behavior by SergeyMenshykh in #8474
• ci: excludes samples from dotnet dependabot because they are causing a timeout by Vincent Biret (@baywet) in #8476
• docs: clarifies the additional languages policy by Vincent Biret (@baywet) in #8477
• .NET: [BREAKING] Make Foundry delegated user identity sticky on AgentSession by Roger Barreto (@rogerbarreto) in #8434
• Build(deps): Bump astral-sh/setup-uv from 10.0.1 to 10.1.0 by Dependabot (@dependabot)[bot] in #8482
• Build(deps): Bump azure/login from 3.0.2 to 3.1.0 in /.github/actions/github-app-token by Dependabot (@dependabot)[bot] in #8483
• Build(deps): Bump astral-sh/setup-uv from 10.0.1 to 10.1.0 in /.github/actions/python-setup by Dependabot (@dependabot)[bot] in #8484
• Build(deps): Bump azure/login from 3.0.2 to 3.1.0 in /.github/actions/sample-validation-setup by Dependabot (@dependabot)[bot] in #8485
• Build(deps): Bump the codeql-actions group across 1 directory with 3 updates by Dependabot (@dependabot)[bot] in #8480
• Build(deps): Bump azure/login from 3.0.2 to 3.1.0 by Dependabot (@dependabot)[bot] in #8481
• Build(deps-dev): Bump uv from 0.12.9 to 0.12.12 in /python/packages/lab in the basics group across 1 directory by Dependabot (@dependabot)[bot] in #8469
• Build(deps-dev): Bump pyright from 1.1.411 to 1.1.414 in /python/packages/lab in the python-type-checkers group across 1 directory by Dependabot (@dependabot)[bot] in #8470
• .NET: Bind always approval responses to surfaced requests by westey (@westey-m) in #8432
• [BREAKING] Python: Add request-scoped Foundry agent factories by Roger Barreto (@rogerbarreto) in #8372
• .NET: Preserve harness middleware for dynamic tools by Roger Barreto (@rogerbarreto) in #8402
• .NET: 2026-09-18 Release version bump by westey (@westey-m) in #8529
• .NET: Pass ChatClientAgent tools per run only rather than setting on FICC by westey (@westey-m) in #8531

New Contributors

• mrchatam made their first contribution in #8325
• Sunhy (@Shy7777) made their first contribution in #8331
• LI (@ktz03) made their first contribution in #8149
• Manohar Paturi (@ManoharPaturi) made their first contribution in #8351
• HeZzz (@HeZ2z) made their first contribution in #7999
• fzfzzfzzzfzzzz made their first contribution in #8260
• Serply (@googio) made their first contribution in #8319
• RKS (@rksharma-owg) made their first contribution in #8347
• alanhuangyoo made their first contribution in #8358
• Harsheet Shah (@harsheet-shah) made their first contribution in #8363
• Saibernard made their first contribution in #7874
• Anish Mehta (@anishmehta24) made their first contribution in #8405
• Tomas Rampas (@tomas-rampas) made their first contribution in #7687
• Vedant Sonkar (@vedantsonkar) made their first contribution in #8117
• Naveen Chatlapalli (@1aifanatic) made their first contribution in #8231
• Lubaoshuai made their first contribution in #8354

Full Changelog: dotnet-1.21.0...dotnet-1.22.0