diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index a161febb..be695775 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,10 +1,10 @@
 {
-  "packages/abstractions": "1.12.1",
-  "packages/authentication/azure": "1.12.1",
-  "packages/http/httpx": "1.12.1",
-  "packages/serialization/json": "1.12.1",
-  "packages/serialization/form": "1.12.1",
-  "packages/serialization/text": "1.12.1",
-  "packages/serialization/multipart": "1.12.1",
-  "packages/bundle": "1.12.1"
+  "packages/abstractions": "1.12.2",
+  "packages/authentication/azure": "1.12.2",
+  "packages/http/httpx": "1.12.2",
+  "packages/serialization/json": "1.12.2",
+  "packages/serialization/form": "1.12.2",
+  "packages/serialization/text": "1.12.2",
+  "packages/serialization/multipart": "1.12.2",
+  "packages/bundle": "1.12.2"
 }
\ No newline at end of file
diff --git a/packages/abstractions/CHANGELOG.md b/packages/abstractions/CHANGELOG.md
index 8dfbdf27..17b0c925 100644
--- a/packages/abstractions/CHANGELOG.md
+++ b/packages/abstractions/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-abstractions-v1.12.1...microsoft-kiota-abstractions-v1.12.2) (2026-09-10)
+
+
+### Bug Fixes
+
+* give each request configuration and headers inspection handler its own HeadersCollection ([e1d47d6](https://github.com/microsoft/kiota-python/commit/e1d47d66cab7f356ce6f495268816917c15b255c))
+* lead APIError's string form with the error message ([b306b55](https://github.com/microsoft/kiota-python/commit/b306b55fe1f2dd0eda0d735acb5d4527f4257d77))
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-abstractions-v1.12.0...microsoft-kiota-abstractions-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/abstractions/pyproject.toml b/packages/abstractions/pyproject.toml
index fdbdb67f..7aea9acc 100644
--- a/packages/abstractions/pyproject.toml
+++ b/packages/abstractions/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-abstractions"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/authentication/azure/CHANGELOG.md b/packages/authentication/azure/CHANGELOG.md
index f3f21270..04f44afb 100644
--- a/packages/authentication/azure/CHANGELOG.md
+++ b/packages/authentication/azure/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-authentication-azure-v1.12.1...microsoft-kiota-authentication-azure-v1.12.2) (2026-09-10)
+
+
+### Miscellaneous Chores
+
+* **microsoft-kiota-authentication-azure:** Synchronize microsoft-kiota versions
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-authentication-azure-v1.12.0...microsoft-kiota-authentication-azure-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/authentication/azure/pyproject.toml b/packages/authentication/azure/pyproject.toml
index 82e440aa..57eb65e0 100644
--- a/packages/authentication/azure/pyproject.toml
+++ b/packages/authentication/azure/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-authentication-azure"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/bundle/CHANGELOG.md b/packages/bundle/CHANGELOG.md
index 104d113d..224d83cf 100644
--- a/packages/bundle/CHANGELOG.md
+++ b/packages/bundle/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-bundle-v1.12.1...microsoft-kiota-bundle-v1.12.2) (2026-09-10)
+
+
+### Miscellaneous Chores
+
+* **microsoft-kiota-bundle:** Synchronize microsoft-kiota versions
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-bundle-v1.12.0...microsoft-kiota-bundle-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/bundle/pyproject.toml b/packages/bundle/pyproject.toml
index 841c9c6b..77c53750 100644
--- a/packages/bundle/pyproject.toml
+++ b/packages/bundle/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-bundle"
-version = "1.12.1"
+version = "1.12.2"
 description = "Bundle package for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/http/httpx/CHANGELOG.md b/packages/http/httpx/CHANGELOG.md
index da3e958d..a2a69d37 100644
--- a/packages/http/httpx/CHANGELOG.md
+++ b/packages/http/httpx/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-http-v1.12.1...microsoft-kiota-http-v1.12.2) (2026-09-10)
+
+
+### Bug Fixes
+
+* give each request configuration and headers inspection handler its own HeadersCollection ([e1d47d6](https://github.com/microsoft/kiota-python/commit/e1d47d66cab7f356ce6f495268816917c15b255c))
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-http-v1.12.0...microsoft-kiota-http-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/http/httpx/pyproject.toml b/packages/http/httpx/pyproject.toml
index 75f81329..b1088bea 100644
--- a/packages/http/httpx/pyproject.toml
+++ b/packages/http/httpx/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-http"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/serialization/form/CHANGELOG.md b/packages/serialization/form/CHANGELOG.md
index 7292eaaf..d6d574d4 100644
--- a/packages/serialization/form/CHANGELOG.md
+++ b/packages/serialization/form/CHANGELOG.md
@@ -11,6 +11,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-form-v1.12.1...microsoft-kiota-serialization-form-v1.12.2) (2026-09-10)
+
+
+### Miscellaneous Chores
+
+* **microsoft-kiota-serialization-form:** Synchronize microsoft-kiota versions
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-form-v1.12.0...microsoft-kiota-serialization-form-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/serialization/form/pyproject.toml b/packages/serialization/form/pyproject.toml
index 8c3ea923..96271a68 100644
--- a/packages/serialization/form/pyproject.toml
+++ b/packages/serialization/form/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-serialization-form"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/serialization/json/CHANGELOG.md b/packages/serialization/json/CHANGELOG.md
index 0a0d12c9..5cce6402 100644
--- a/packages/serialization/json/CHANGELOG.md
+++ b/packages/serialization/json/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-json-v1.12.1...microsoft-kiota-serialization-json-v1.12.2) (2026-09-10)
+
+
+### Miscellaneous Chores
+
+* **microsoft-kiota-serialization-json:** Synchronize microsoft-kiota versions
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-json-v1.12.0...microsoft-kiota-serialization-json-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/serialization/json/pyproject.toml b/packages/serialization/json/pyproject.toml
index 751459bc..46a3e562 100644
--- a/packages/serialization/json/pyproject.toml
+++ b/packages/serialization/json/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-serialization-json"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/serialization/multipart/CHANGELOG.md b/packages/serialization/multipart/CHANGELOG.md
index 0c8b7f29..37f4c04a 100644
--- a/packages/serialization/multipart/CHANGELOG.md
+++ b/packages/serialization/multipart/CHANGELOG.md
@@ -9,6 +9,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-multipart-v1.12.1...microsoft-kiota-serialization-multipart-v1.12.2) (2026-09-10)
+
+
+### Miscellaneous Chores
+
+* **microsoft-kiota-serialization-multipart:** Synchronize microsoft-kiota versions
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-multipart-v1.12.0...microsoft-kiota-serialization-multipart-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/serialization/multipart/pyproject.toml b/packages/serialization/multipart/pyproject.toml
index 5d1c5d74..d0a77d69 100644
--- a/packages/serialization/multipart/pyproject.toml
+++ b/packages/serialization/multipart/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-serialization-multipart"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}
diff --git a/packages/serialization/text/CHANGELOG.md b/packages/serialization/text/CHANGELOG.md
index f1129741..8d262d1f 100644
--- a/packages/serialization/text/CHANGELOG.md
+++ b/packages/serialization/text/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.12.2](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-text-v1.12.1...microsoft-kiota-serialization-text-v1.12.2) (2026-09-10)
+
+
+### Miscellaneous Chores
+
+* **microsoft-kiota-serialization-text:** Synchronize microsoft-kiota versions
+
 ## [1.12.1](https://github.com/microsoft/kiota-python/compare/microsoft-kiota-serialization-text-v1.12.0...microsoft-kiota-serialization-text-v1.12.1) (2026-09-04)
 
 
diff --git a/packages/serialization/text/pyproject.toml b/packages/serialization/text/pyproject.toml
index 2b038852..c4ff5443 100644
--- a/packages/serialization/text/pyproject.toml
+++ b/packages/serialization/text/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "flit_core.buildapi"
 
 [project]
 name = "microsoft-kiota-serialization-text"
-version = "1.12.1"
+version = "1.12.2"
 description = "Core abstractions for kiota generated libraries in Python"
 authors = [{name = "Microsoft", email = "graphtooling+python@microsoft.com"}]
 license = {text = "MIT"}