diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d6fe883d8..c174c94a9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    "hugr-py": "0.15.4"
+    "hugr-py": "0.15.5"
 }
\ No newline at end of file
diff --git a/hugr-py/CHANGELOG.md b/hugr-py/CHANGELOG.md
index ca95db955..a0f5ba8b4 100644
--- a/hugr-py/CHANGELOG.md
+++ b/hugr-py/CHANGELOG.md
@@ -1,5 +1,24 @@
 # Changelog
 
+## [0.15.5](https://github.com/Quantinuum/hugr/compare/hugr-py-v0.15.4...hugr-py-v0.15.5) (2026-03-16)
+
+
+### Features
+
+* Define pass application scopes ([#2772](https://github.com/Quantinuum/hugr/issues/2772)) ([847b864](https://github.com/Quantinuum/hugr/commit/847b8640582f229d45577439bd58c587242b52fc))
+* deprecate Function (Value) in hugr-py too ([#2882](https://github.com/Quantinuum/hugr/issues/2882)) ([043fec2](https://github.com/Quantinuum/hugr/commit/043fec20d9ef973bf1162d250b667c1a57fa3de2))
+* Improve rendering of tags and cases ([#2943](https://github.com/Quantinuum/hugr/issues/2943)) ([6ba9e45](https://github.com/Quantinuum/hugr/commit/6ba9e45d70e0a6a6255474c1c78b5ed7b91c705b))
+
+
+### Bug Fixes
+
+* **py:** Load and resolve lower_funcs in extensions ([#2924](https://github.com/Quantinuum/hugr/issues/2924)) ([6dfc8e3](https://github.com/Quantinuum/hugr/commit/6dfc8e37bc4c4b98881e3b5abe1ffa50df34adc2))
+
+
+### Documentation
+
+* Add specification to sphinx docs ([#2907](https://github.com/Quantinuum/hugr/issues/2907)) ([46ea04b](https://github.com/Quantinuum/hugr/commit/46ea04b17e176cf54f1ddbc63efd72aa4dcc31f0))
+
 ## [0.15.4](https://github.com/Quantinuum/hugr/compare/hugr-py-v0.15.3...hugr-py-v0.15.4) (2026-02-20)
 
 
diff --git a/hugr-py/pyproject.toml b/hugr-py/pyproject.toml
index 35ac0a0ea..bbc4decdc 100644
--- a/hugr-py/pyproject.toml
+++ b/hugr-py/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "hugr"
-version = "0.15.4"
+version = "0.15.5"
 requires-python = ">=3.10"
 description = "Quantinuum's common representation for quantum programs"
 license = { file = "LICENCE" }
diff --git a/hugr-py/src/hugr/__init__.py b/hugr-py/src/hugr/__init__.py
index 3e0cea923..039bae71b 100644
--- a/hugr-py/src/hugr/__init__.py
+++ b/hugr-py/src/hugr/__init__.py
@@ -18,4 +18,4 @@
 
 # This is updated by our release-please workflow, triggered by this
 # annotation: x-release-please-version
-__version__ = "0.15.4"
+__version__ = "0.15.5"
diff --git a/uv.lock b/uv.lock
index 5878a571e..75447687a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -374,7 +374,7 @@ wheels = [
 
 [[package]]
 name = "hugr"
-version = "0.15.4"
+version = "0.15.5"
 source = { editable = "hugr-py" }
 dependencies = [
     { name = "graphviz" },