diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 0ac88e5..1772e6f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "0.4.1"
+    ".": "1.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92d3a34..5493b82 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## [1.0.0](https://github.com/b-long/opentdf-python-sdk/compare/otdf-python-v0.4.1...otdf-python-v1.0.0) (2026-01-07)
+
+
+### ⚠ BREAKING CHANGES
+
+* **main:** Upgrade from connect-python 0.4.2 to 0.6.0
+
+### Bug Fixes
+
+* **main:** ensure compatibility with the latest `connect-python` ([#123](https://github.com/b-long/opentdf-python-sdk/issues/123)) ([4d160db](https://github.com/b-long/opentdf-python-sdk/commit/4d160dbed2bdedc4baaa807f97903aad710de943))
+
 ## [0.4.1](https://github.com/b-long/opentdf-python-sdk/compare/otdf-python-v0.4.0...otdf-python-v0.4.1) (2025-12-09)
 
 
diff --git a/otdf-python-proto/pyproject.toml b/otdf-python-proto/pyproject.toml
index 8fada34..2b63692 100644
--- a/otdf-python-proto/pyproject.toml
+++ b/otdf-python-proto/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "otdf-python-proto"
-version = "0.4.1"
+version = "1.0.0"
 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 353bdb2..12024f9 100644
--- a/otdf-python-proto/uv.lock
+++ b/otdf-python-proto/uv.lock
@@ -601,7 +601,7 @@ wheels = [
 
 [[package]]
 name = "otdf-python-proto"
-version = "0.4.1"
+version = "1.0.0"
 source = { editable = "." }
 dependencies = [
     { name = "connect-python", extra = ["compiler"] },
diff --git a/pyproject.toml b/pyproject.toml
index e746f57..e6edf72 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "otdf-python"
-version = "0.4.1"
+version = "1.0.0"
 description = "Unofficial OpenTDF SDK for Python"
 readme = "README.md"
 authors = [
diff --git a/uv.lock b/uv.lock
index e0915e6..8a5180b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -422,7 +422,7 @@ wheels = [
 
 [[package]]
 name = "otdf-python"
-version = "0.4.1"
+version = "1.0.0"
 source = { editable = "." }
 dependencies = [
     { name = "connect-python" },