diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 34c6853e..f59f62aa 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,5 +1,5 @@
 {
     "tket2-py": "0.8.1",
     "tket2-eccs": "0.3.0",
-    "tket2-exts": "0.6.0"
+    "tket2-exts": "0.7.0"
 }
diff --git a/tket2-exts/CHANGELOG.md b/tket2-exts/CHANGELOG.md
index b967bb87..72a7de55 100644
--- a/tket2-exts/CHANGELOG.md
+++ b/tket2-exts/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.7.0](https://github.com/CQCL/tket2/compare/tket2-exts-v0.6.0...tket2-exts-v0.7.0) (2025-04-16)
+
+
+### ⚠ BREAKING CHANGES
+
+* **hseries:** ZZMax removed from Qsystem extension. Use ZZPhase(pi/2).
+
+### Features
+
+* Add `tket2.bool` extension ([#823](https://github.com/CQCL/tket2/issues/823)) ([8818d2f](https://github.com/CQCL/tket2/commit/8818d2f122ec3911366d02c18e347752a427fad9))
+* **hseries:** remove ZZMax operation from Qsystem extension ([#852](https://github.com/CQCL/tket2/issues/852)) ([b488125](https://github.com/CQCL/tket2/commit/b4881256b2d6a5c21c1d7a69d91384c5d2cc9905))
+
 ## [0.6.0](https://github.com/CQCL/tket2/compare/tket2-exts-v0.5.1...tket2-exts-v0.6.0) (2025-03-18)
 
 
diff --git a/tket2-exts/pyproject.toml b/tket2-exts/pyproject.toml
index 3715c625..d54ce653 100644
--- a/tket2-exts/pyproject.toml
+++ b/tket2-exts/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "tket2-exts"
-version = "0.6.0"
+version = "0.7.0"
 requires-python = ">=3.10"
 description = "HUGR extension definitions for the tket2 compiler."
 license = { file = "LICENCE" }
diff --git a/tket2-exts/src/tket2_exts/__init__.py b/tket2-exts/src/tket2_exts/__init__.py
index b332cedf..0a326c86 100644
--- a/tket2-exts/src/tket2_exts/__init__.py
+++ b/tket2-exts/src/tket2_exts/__init__.py
@@ -8,7 +8,7 @@
 
 # This is updated by our release-please workflow, triggered by this
 # annotation: x-release-please-version
-__version__ = "0.6.0"
+__version__ = "0.7.0"
 
 
 @functools.cache