diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 067e3d3..1fd56a9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "0.3.5"
+    ".": "0.4.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index da39bf9..3c57a92 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.0](https://github.com/b-long/opentdf-python-sdk/compare/otdf-python-v0.3.5...otdf-python-v0.4.0) (2025-11-20)
+
+
+### Features
+
+* add Python 3.14 support & fix pre-commit ([#117](https://github.com/b-long/opentdf-python-sdk/issues/117)) ([b89edfc](https://github.com/b-long/opentdf-python-sdk/commit/b89edfc70b13139691b7d2a11b256f59b457176d))
+
 ## [0.3.5](https://github.com/b-long/opentdf-python-sdk/compare/otdf-python-v0.3.4...otdf-python-v0.3.5) (2025-11-10)
 
 
diff --git a/otdf-python-proto/pyproject.toml b/otdf-python-proto/pyproject.toml
index 1401f2c..9834585 100644
--- a/otdf-python-proto/pyproject.toml
+++ b/otdf-python-proto/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "otdf-python-proto"
-version = "0.3.5"
+version = "0.4.0"
 description = "Generated protobuf files for OpenTDF Python SDK"
 readme = "README.md"
 authors = [
diff --git a/otdf-python-proto/uv.lock b/otdf-python-proto/uv.lock
index 479121f..d1c7ee9 100644
--- a/otdf-python-proto/uv.lock
+++ b/otdf-python-proto/uv.lock
@@ -601,7 +601,7 @@ wheels = [
 
 [[package]]
 name = "otdf-python-proto"
-version = "0.3.5"
+version = "0.4.0"
 source = { editable = "." }
 dependencies = [
     { name = "connect-python", extra = ["compiler"] },
diff --git a/pyproject.toml b/pyproject.toml
index 9f3e262..03ecb3e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "otdf-python"
-version = "0.3.5"
+version = "0.4.0"
 description = "Unofficial OpenTDF SDK for Python"
 readme = "README.md"
 authors = [
diff --git a/uv.lock b/uv.lock
index 90aa342..40d7ae9 100644
--- a/uv.lock
+++ b/uv.lock
@@ -849,7 +849,7 @@ wheels = [
 
 [[package]]
 name = "otdf-python"
-version = "0.3.5"
+version = "0.4.0"
 source = { editable = "." }
 dependencies = [
     { name = "connect-python", extra = ["compiler"] },