diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5199c52..9e37afa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 <!-- towncrier release notes start -->
 
+## [0.1.5](https://github.com/vtz/opensomeip-python/releases/tag/v0.1.5) - 2026-04-22
+
+### Bug Fixes
+
+- Operations that require the native C++ extension (RPC calls, transport send,
+  event subscriptions) now raise clear errors (`RpcError`, `TransportError`,
+  `RuntimeError`) instead of silently returning empty/fake responses or dropping
+  messages when the extension is unavailable. (Fixes #17)
+
+### Documentation
+
+- Add "Verify native extension" subsection to the README after Installation.
+- Update the Troubleshooting section to describe the new error-raising behavior.
+
+### Miscellaneous
+
+- Update opensomeip C++ submodule to latest main (`85b4c91`).
+
 ## [0.1.4](https://github.com/vtz/opensomeip-python/releases/tag/v0.1.4) - 2026-04-18
 
 ### Features
diff --git a/extern/opensomeip b/extern/opensomeip
index 446ca54..85b4c91 160000
--- a/extern/opensomeip
+++ b/extern/opensomeip
@@ -1 +1 @@
-Subproject commit 446ca54ad495d369ec639d6a5c795b4d42cb9b30
+Subproject commit 85b4c915b4ca8dd5fbfaa2a2eaf99241ef548a6a
diff --git a/pyproject.toml b/pyproject.toml
index 7fc369d..4baeac4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "opensomeip"
-version = "0.1.4"
+version = "0.1.5"
 description = "Python bindings for the opensomeip C++ SOME/IP stack"
 readme = "README.md"
 license = "Apache-2.0"
@@ -58,7 +58,7 @@ wheel.packages = ["src/opensomeip"]
 cmake.build-type = "Release"
 
 [tool.scikit-build.cmake.define]
-OPENSOMEIP_PYTHON_VERSION = "0.1.4"
+OPENSOMEIP_PYTHON_VERSION = "0.1.5"
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]