diff --git a/python/CHANGELOG.md b/python/CHANGELOG.md
index f0669705f11..c359f6152c1 100644
--- a/python/CHANGELOG.md
+++ b/python/CHANGELOG.md
@@ -7,6 +7,38 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.15.0] - 2026-08-21
+
+### Added
+- **agent-framework-ag-ui**, **agent-framework-openai**: Add optional A2UI support for agent-generated interfaces and preserve streaming tool-call indices for A2UI consumers ([#7423](https://github.com/microsoft/agent-framework/pull/7423))
+- **agent-framework-core**: Add `MiddlewareFailure` as a first-class fatal signal for function middleware ([#7562](https://github.com/microsoft/agent-framework/pull/7562))
+- **agent-framework-core**, **agent-framework-azure-cosmos**: Add a process-wide workflow checkpoint type registry, register Cosmos checkpoint state types, and declare the compatibility dependency required by the supported Cosmos SDK floor ([#7636](https://github.com/microsoft/agent-framework/pull/7636))
+- **agent-framework-core**, **agent-framework-foundry-hosting**: Add steering, retry, and recovery support for resilient Foundry Hosted Agents, with long-running workflow samples ([#7670](https://github.com/microsoft/agent-framework/pull/7670))
+- **samples**: Add the production-ready installment of the build-your-own-claw harness sample ([#7698](https://github.com/microsoft/agent-framework/pull/7698))
+
+### Changed
+- **agent-framework-ag-ui**, **agent-framework-core**: [BREAKING] Consolidate OpenTelemetry GenAI semantic-convention support around stable and experimental modes with explicit message-event controls ([#7673](https://github.com/microsoft/agent-framework/pull/7673))
+- **agent-framework-ag-ui**: Align run continuity and avoid emitting unchanged predictive state snapshots ([#7662](https://github.com/microsoft/agent-framework/pull/7662), [#7766](https://github.com/microsoft/agent-framework/pull/7766))
+- **agent-framework-core**: Defer turn-scoped `after_run` context providers to the agent-loop boundary ([#7289](https://github.com/microsoft/agent-framework/pull/7289))
+- **agent-framework-ag-ui**, **agent-framework-core**, **agent-framework-declarative**: Persist approval state and distinguish absent values from falsey approval data ([#7631](https://github.com/microsoft/agent-framework/pull/7631))
+- **agent-framework-devui**: Forward `function_invocation_kwargs` through DevUI agent runs ([#7779](https://github.com/microsoft/agent-framework/pull/7779))
+- **agent-framework-core**, **samples**: Clarify skill script arguments and MCP tool argument-filtering behavior ([#7695](https://github.com/microsoft/agent-framework/pull/7695), [#7801](https://github.com/microsoft/agent-framework/pull/7801))
+- **tests**: Update uv, Ruff, mypy, ty, Flit, and the root build-system dependency range ([#7644](https://github.com/microsoft/agent-framework/pull/7644), [#7645](https://github.com/microsoft/agent-framework/pull/7645), [#7780](https://github.com/microsoft/agent-framework/pull/7780), [#7781](https://github.com/microsoft/agent-framework/pull/7781), [#7782](https://github.com/microsoft/agent-framework/pull/7782), [#7783](https://github.com/microsoft/agent-framework/pull/7783), [#7784](https://github.com/microsoft/agent-framework/pull/7784))
+- **docs**: Clarify PR review resolution and pin the Agent Lightning installation documentation link ([#7746](https://github.com/microsoft/agent-framework/pull/7746), [#7693](https://github.com/microsoft/agent-framework/pull/7693))
+
+### Fixed
+- **agent-framework-a2a**, **agent-framework-core**, **agent-framework-orchestrations**: Preserve and normalize A2A inputs when used through orchestrations ([#7761](https://github.com/microsoft/agent-framework/pull/7761))
+- **agent-framework-ag-ui**: Preserve tool-message IDs, URL-source attachments, and JSON workflow resume payloads ([#7510](https://github.com/microsoft/agent-framework/pull/7510), [#7655](https://github.com/microsoft/agent-framework/pull/7655), [#7684](https://github.com/microsoft/agent-framework/pull/7684))
+- **agent-framework-anthropic**, **agent-framework-core**: Preserve structured instructions when merging chat options ([#7730](https://github.com/microsoft/agent-framework/pull/7730))
+- **agent-framework-core**: Preserve all fan-in trace contexts and restrict workflow type deserialization ([#7557](https://github.com/microsoft/agent-framework/pull/7557), [#7500](https://github.com/microsoft/agent-framework/pull/7500))
+- **agent-framework-core**: Avoid remote MCP tool-name shadowing while retaining the documented argument allowlist ([#7799](https://github.com/microsoft/agent-framework/pull/7799))
+- **agent-framework-core**: Always emit an arguments field for zero-argument tool calls in Foundry evaluations ([#7734](https://github.com/microsoft/agent-framework/pull/7734))
+- **agent-framework-core**, **agent-framework-github-copilot**: Forward telemetry configuration to the GitHub Copilot client ([#7625](https://github.com/microsoft/agent-framework/pull/7625))
+- **agent-framework-core**, **agent-framework-redis**: Prevent superlinear history growth by deduplicating saved messages ([#7242](https://github.com/microsoft/agent-framework/pull/7242))
+- **agent-framework-devui**: Deduplicate streamed tool calls ([#7652](https://github.com/microsoft/agent-framework/pull/7652))
+- **agent-framework-foundry-hosting**: Surface A2A preview consent URLs and prevent duplicate streamed function calls ([#7606](https://github.com/microsoft/agent-framework/pull/7606), [#7486](https://github.com/microsoft/agent-framework/pull/7486))
+- **agent-framework-orchestrations**: Preserve agent `additional_properties` in handoff clones ([#7755](https://github.com/microsoft/agent-framework/pull/7755))
+
 ## [1.14.0] - 2026-08-13
 
 ### Added
@@ -1523,7 +1555,8 @@ Release candidate for **agent-framework-core** and **agent-framework-azure-ai**
 
 For more information, see the [announcement blog post](https://devblogs.microsoft.com/foundry/introducing-microsoft-agent-framework-the-open-source-engine-for-agentic-ai-apps/).
 
-[Unreleased]: https://github.com/microsoft/agent-framework/compare/python-1.14.0...HEAD
+[Unreleased]: https://github.com/microsoft/agent-framework/compare/python-1.15.0...HEAD
+[1.15.0]: https://github.com/microsoft/agent-framework/compare/python-1.14.0...python-1.15.0
 [1.14.0]: https://github.com/microsoft/agent-framework/compare/python-1.13.0...python-1.14.0
 [1.13.0]: https://github.com/microsoft/agent-framework/compare/python-1.12.1...python-1.13.0
 [1.12.1]: https://github.com/microsoft/agent-framework/compare/python-1.12.0...python-1.12.1
diff --git a/python/packages/a2a/pyproject.toml b/python/packages/a2a/pyproject.toml
index 5ca26e067a5..88cf8c9bb93 100644
--- a/python/packages/a2a/pyproject.toml
+++ b/python/packages/a2a/pyproject.toml
@@ -4,7 +4,7 @@ description = "A2A integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0b260730"
+version = "1.0.0b260821"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "a2a-sdk>=1.0.0,<2",
 ]
 
diff --git a/python/packages/ag-ui/pyproject.toml b/python/packages/ag-ui/pyproject.toml
index 97d1d0058d0..9c34024f469 100644
--- a/python/packages/ag-ui/pyproject.toml
+++ b/python/packages/ag-ui/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "agent-framework-ag-ui"
-version = "1.1.0"
+version = "1.2.0"
 description = "AG-UI protocol integration for Agent Framework"
 readme = "README.md"
 license-files = ["LICENSE"]
@@ -22,7 +22,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.14.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "ag-ui-protocol>=0.1.19,<0.2",
     "fastapi>=0.121.0,<0.140.0",
     "httpx>=0.28.1,<1",
diff --git a/python/packages/anthropic/pyproject.toml b/python/packages/anthropic/pyproject.toml
index 7116d064e66..221133e3a2e 100644
--- a/python/packages/anthropic/pyproject.toml
+++ b/python/packages/anthropic/pyproject.toml
@@ -4,7 +4,7 @@ description = "Anthropic integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0b260730"
+version = "1.0.0b260821"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "anthropic>=0.80.0,<0.117.0",
 ]
 
diff --git a/python/packages/azure-cosmos/pyproject.toml b/python/packages/azure-cosmos/pyproject.toml
index 6df900a7bea..e3de61e616d 100644
--- a/python/packages/azure-cosmos/pyproject.toml
+++ b/python/packages/azure-cosmos/pyproject.toml
@@ -4,7 +4,7 @@ description = "Azure Cosmos DB history provider integration for Microsoft Agent
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0b260730"
+version = "1.0.0b260821"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,8 +23,9 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "azure-cosmos>=4.3.0,<5",
+    "six>=1.17.0,<2",
 ]
 
 [tool.uv]
diff --git a/python/packages/core/pyproject.toml b/python/packages/core/pyproject.toml
index cc1da9dbe99..d3b28c529d6 100644
--- a/python/packages/core/pyproject.toml
+++ b/python/packages/core/pyproject.toml
@@ -4,7 +4,7 @@ description = "Microsoft Agent Framework for building AI Agents with Python. Thi
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.14.0"
+version = "1.15.0"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
diff --git a/python/packages/declarative/pyproject.toml b/python/packages/declarative/pyproject.toml
index a6e1517ef78..6a5f28dcc17 100644
--- a/python/packages/declarative/pyproject.toml
+++ b/python/packages/declarative/pyproject.toml
@@ -4,7 +4,7 @@ description = "Declarative specification support for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.2"
+version = "1.0.3"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -22,7 +22,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "httpx>=0.27,<1",
     "powerfx>=0.0.32,<0.0.35; python_version < '3.14'",
     "pyyaml>=6.0,<7.0",
diff --git a/python/packages/devui/pyproject.toml b/python/packages/devui/pyproject.toml
index 2ca7d608704..382d75fb47a 100644
--- a/python/packages/devui/pyproject.toml
+++ b/python/packages/devui/pyproject.toml
@@ -4,7 +4,7 @@ description = "Debug UI for Microsoft Agent Framework with OpenAI-compatible API
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0b260813"
+version = "1.0.0b260821"
 license-files = ["LICENSE"]
 urls.homepage = "https://github.com/microsoft/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
  dependencies = [
-     "agent-framework-core>=1.13.0,<2",
+     "agent-framework-core>=1.15.0,<2",
      "openai>=2.45.0,<3",
      "opentelemetry-sdk>=1.39.0,<2",
      "fastapi>=0.115.0,<0.138.1",
diff --git a/python/packages/foundry_hosting/pyproject.toml b/python/packages/foundry_hosting/pyproject.toml
index 4f1e285a8c2..8bb1d84188e 100644
--- a/python/packages/foundry_hosting/pyproject.toml
+++ b/python/packages/foundry_hosting/pyproject.toml
@@ -4,7 +4,7 @@ description = "Foundry Hosting integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0b260813"
+version = "1.0.0b260821"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "azure-ai-agentserver-core>=2.1.0b1,<3",
     "azure-ai-agentserver-responses>=2.1.0b1,<3",
     "azure-ai-agentserver-invocations>=1.1.0b1,<2",
diff --git a/python/packages/github_copilot/pyproject.toml b/python/packages/github_copilot/pyproject.toml
index 3896be8de08..ef660ec3032 100644
--- a/python/packages/github_copilot/pyproject.toml
+++ b/python/packages/github_copilot/pyproject.toml
@@ -4,7 +4,7 @@ description = "GitHub Copilot integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.11"
-version = "1.0.2"
+version = "1.0.3"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -22,7 +22,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "github-copilot-sdk==1.0.2; python_version >= '3.11'",
 ]
 
diff --git a/python/packages/openai/pyproject.toml b/python/packages/openai/pyproject.toml
index 3c2f6ccd40e..4fb486e1a4a 100644
--- a/python/packages/openai/pyproject.toml
+++ b/python/packages/openai/pyproject.toml
@@ -4,7 +4,7 @@ description = "OpenAI integrations for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.13.0"
+version = "1.14.0"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "openai>=2.25.0,<3",
 ]
 
diff --git a/python/packages/orchestrations/pyproject.toml b/python/packages/orchestrations/pyproject.toml
index e5bd976bd32..303912056ad 100644
--- a/python/packages/orchestrations/pyproject.toml
+++ b/python/packages/orchestrations/pyproject.toml
@@ -4,7 +4,7 @@ description = "Orchestration patterns for Microsoft Agent Framework. Includes Se
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.1.0"
+version = "1.1.1"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
 ]
 
 [tool.uv]
diff --git a/python/packages/redis/pyproject.toml b/python/packages/redis/pyproject.toml
index 8ee8523db49..184106c393e 100644
--- a/python/packages/redis/pyproject.toml
+++ b/python/packages/redis/pyproject.toml
@@ -4,7 +4,7 @@ description = "Redis integration for Microsoft Agent Framework."
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.0.0b260813"
+version = "1.0.0b260821"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core>=1.13.0,<2",
+    "agent-framework-core>=1.15.0,<2",
     "redis>=6.4.0,<7.2.1",
     "redisvl>=0.11.0,<0.16",
     "numpy>=2.2.6,<3"
diff --git a/python/pyproject.toml b/python/pyproject.toml
index df697ce7cf9..144126b8613 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -4,7 +4,7 @@ description = "Microsoft Agent Framework for building AI Agents with Python. Thi
 authors = [{ name = "Microsoft", email = "af-support@microsoft.com"}]
 readme = "README.md"
 requires-python = ">=3.10"
-version = "1.14.0"
+version = "1.15.0"
 license-files = ["LICENSE"]
 urls.homepage = "https://aka.ms/agent-framework"
 urls.source = "https://github.com/microsoft/agent-framework/tree/main/python"
@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core[all]==1.14.0",
+    "agent-framework-core[all]==1.15.0",
 ]
 
 [dependency-groups]
diff --git a/python/uv.lock b/python/uv.lock
index 5aaf412fae2..5aa816032c6 100644
--- a/python/uv.lock
+++ b/python/uv.lock
@@ -124,7 +124,7 @@ wheels = [
 
 [[package]]
 name = "agent-framework"
-version = "1.14.0"
+version = "1.15.0"
 source = { virtual = "." }
 dependencies = [
     { name = "agent-framework-core", extra = ["all"] },
@@ -191,7 +191,7 @@ test = [
 
 [[package]]
 name = "agent-framework-a2a"
-version = "1.0.0b260730"
+version = "1.0.0b260821"
 source = { editable = "packages/a2a" }
 dependencies = [
     { name = "a2a-sdk" },
@@ -206,7 +206,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-ag-ui"
-version = "1.1.0"
+version = "1.2.0"
 source = { editable = "packages/ag-ui" }
 dependencies = [
     { name = "ag-ui-protocol" },
@@ -248,7 +248,7 @@ test = [{ name = "agent-framework-orchestrations", editable = "packages/orchestr
 
 [[package]]
 name = "agent-framework-anthropic"
-version = "1.0.0b260730"
+version = "1.0.0b260821"
 source = { editable = "packages/anthropic" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -299,17 +299,19 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-azure-cosmos"
-version = "1.0.0b260730"
+version = "1.0.0b260821"
 source = { editable = "packages/azure-cosmos" }
 dependencies = [
     { name = "agent-framework-core" },
     { name = "azure-cosmos" },
+    { name = "six" },
 ]
 
 [package.metadata]
 requires-dist = [
     { name = "agent-framework-core", editable = "packages/core" },
     { name = "azure-cosmos", specifier = ">=4.3.0,<5" },
+    { name = "six", specifier = ">=1.17.0,<2" },
 ]
 
 [[package]]
@@ -426,7 +428,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-core"
-version = "1.14.0"
+version = "1.15.0"
 source = { editable = "packages/core" }
 dependencies = [
     { name = "msgspec" },
@@ -526,7 +528,7 @@ dev = [{ name = "azure-ai-agentserver-core", specifier = ">=2.0.0b7,<3" }]
 
 [[package]]
 name = "agent-framework-declarative"
-version = "1.0.2"
+version = "1.0.3"
 source = { editable = "packages/declarative" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -553,7 +555,7 @@ dev = [{ name = "types-pyyaml", specifier = "==6.0.12.20260518" }]
 
 [[package]]
 name = "agent-framework-devui"
-version = "1.0.0b260813"
+version = "1.0.0b260821"
 source = { editable = "packages/devui" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -627,7 +629,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-foundry-hosting"
-version = "1.0.0b260813"
+version = "1.0.0b260821"
 source = { editable = "packages/foundry_hosting" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -682,7 +684,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-github-copilot"
-version = "1.0.2"
+version = "1.0.3"
 source = { editable = "packages/github_copilot" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -950,7 +952,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-openai"
-version = "1.13.0"
+version = "1.14.0"
 source = { editable = "packages/openai" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -965,7 +967,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-orchestrations"
-version = "1.1.0"
+version = "1.1.1"
 source = { editable = "packages/orchestrations" }
 dependencies = [
     { name = "agent-framework-core" },
@@ -993,7 +995,7 @@ requires-dist = [
 
 [[package]]
 name = "agent-framework-redis"
-version = "1.0.0b260813"
+version = "1.0.0b260821"
 source = { editable = "packages/redis" }
 dependencies = [
     { name = "agent-framework-core" },