diff --git a/hamh-testing/CHANGELOG.md b/hamh-testing/CHANGELOG.md
index dad9fa5..88d9ff9 100644
--- a/hamh-testing/CHANGELOG.md
+++ b/hamh-testing/CHANGELOG.md
@@ -1,3 +1,10 @@
+# [4.0.0-testing.20](https://github.com/RiDDiX/home-assistant-matter-hub/compare/v4.0.0-testing.19...v4.0.0-testing.20) (2026-01-29)
+
+
+### Bug Fixes
+
+* clamp maxHeatSetpointLimit for heating-only thermostats to satisfy Matter.js constraints ([ab148c2](https://github.com/RiDDiX/home-assistant-matter-hub/commit/ab148c2349819776846f65cf662f926e998574d2))
+
 # [4.0.0-testing.19](https://github.com/RiDDiX/home-assistant-matter-hub/compare/v4.0.0-testing.18...v4.0.0-testing.19) (2026-01-29)
 
 
diff --git a/hamh-testing/config.yaml b/hamh-testing/config.yaml
index c0d5267..6225131 100644
--- a/hamh-testing/config.yaml
+++ b/hamh-testing/config.yaml
@@ -1,4 +1,4 @@
-version: "4.0.0-testing.19"
+version: "4.0.0-testing.20"
 image: ghcr.io/riddix/home-assistant-matter-hub-addon
 slug: hamh-testing
 name: Home-Assistant-Matter-Hub (Testing)