diff --git a/CHANGELOG.md b/CHANGELOG.md
index da94cc125..b0b25f2f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # CHANGELOG
 
+## 3.6.6 Apr 17, 2024
+
+Contributed:
+
+- Add compatibility layer for H160 addresses (Thanks to https://github.com/vikiival)
+
+Changes:
+
+- Update ci checkout and setup_node to v4
+- Bump yarn to 4.1.1
+
+
 ## 3.6.5 Feb 28, 2024
 
 Changes
diff --git a/package.json b/package.json
index 63a5ddf0e..d6db6e0a3 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   },
   "sideEffects": false,
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "versions": {
     "git": "3.6.6-2-x",
     "npm": "3.6.5"
diff --git a/packages/react-identicon/package.json b/packages/react-identicon/package.json
index ba97b95ec..9b9a750e6 100644
--- a/packages/react-identicon/package.json
+++ b/packages/react-identicon/package.json
@@ -18,12 +18,12 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
     "@polkadot/keyring": "^12.6.2",
-    "@polkadot/ui-settings": "3.6.6-2-x",
-    "@polkadot/ui-shared": "3.6.6-2-x",
+    "@polkadot/ui-settings": "3.6.6",
+    "@polkadot/ui-shared": "3.6.6",
     "@polkadot/util": "^12.6.2",
     "@polkadot/util-crypto": "^12.6.2",
     "ethereum-blockies-base64": "^1.0.2",
diff --git a/packages/react-qr/package.json b/packages/react-qr/package.json
index c9446ee41..7e9c72a78 100644
--- a/packages/react-qr/package.json
+++ b/packages/react-qr/package.json
@@ -18,10 +18,10 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
-    "@polkadot/ui-settings": "3.6.6-2-x",
+    "@polkadot/ui-settings": "3.6.6",
     "@polkadot/util": "^12.6.2",
     "@polkadot/util-crypto": "^12.6.2",
     "qrcode-generator": "^1.4.4",
diff --git a/packages/reactnative-identicon/package.json b/packages/reactnative-identicon/package.json
index eae9a87c8..bf2131325 100644
--- a/packages/reactnative-identicon/package.json
+++ b/packages/reactnative-identicon/package.json
@@ -18,10 +18,10 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
-    "@polkadot/ui-shared": "3.6.6-2-x",
+    "@polkadot/ui-shared": "3.6.6",
     "@polkadot/util": "^12.6.2",
     "@polkadot/util-crypto": "^12.6.2",
     "react-native-svg": "^14.1.0",
diff --git a/packages/ui-keyring/package.json b/packages/ui-keyring/package.json
index 95ae3b271..15557851a 100644
--- a/packages/ui-keyring/package.json
+++ b/packages/ui-keyring/package.json
@@ -17,11 +17,11 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
     "@polkadot/keyring": "^12.6.2",
-    "@polkadot/ui-settings": "3.6.6-2-x",
+    "@polkadot/ui-settings": "3.6.6",
     "@polkadot/util": "^12.6.2",
     "@polkadot/util-crypto": "^12.6.2",
     "mkdirp": "^3.0.1",
diff --git a/packages/ui-settings/package.json b/packages/ui-settings/package.json
index dfa5f6df7..d6d718461 100644
--- a/packages/ui-settings/package.json
+++ b/packages/ui-settings/package.json
@@ -18,7 +18,7 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
     "@polkadot/networks": "^12.6.2",
diff --git a/packages/ui-shared/package.json b/packages/ui-shared/package.json
index 9ce42f56d..081ea876f 100644
--- a/packages/ui-shared/package.json
+++ b/packages/ui-shared/package.json
@@ -18,7 +18,7 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
     "colord": "^2.9.3",
diff --git a/packages/vue-identicon/package.json b/packages/vue-identicon/package.json
index a7fa6688b..86ed285cf 100644
--- a/packages/vue-identicon/package.json
+++ b/packages/vue-identicon/package.json
@@ -18,10 +18,10 @@
     "./packageDetect.cjs"
   ],
   "type": "module",
-  "version": "3.6.6-2-x",
+  "version": "3.6.6",
   "main": "index.js",
   "dependencies": {
-    "@polkadot/ui-shared": "3.6.6-2-x",
+    "@polkadot/ui-shared": "3.6.6",
     "@polkadot/util": "^12.6.2",
     "@polkadot/util-crypto": "^12.6.2",
     "jdenticon": "3.2.0",
diff --git a/yarn.lock b/yarn.lock
index 4570a288c..3e8cb39b4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1626,8 +1626,8 @@ __metadata:
   resolution: "@polkadot/react-identicon@workspace:packages/react-identicon"
   dependencies:
     "@polkadot/keyring": "npm:^12.6.2"
-    "@polkadot/ui-settings": "npm:3.6.6-2-x"
-    "@polkadot/ui-shared": "npm:3.6.6-2-x"
+    "@polkadot/ui-settings": "npm:3.6.6"
+    "@polkadot/ui-shared": "npm:3.6.6"
     "@polkadot/util": "npm:^12.6.2"
     "@polkadot/util-crypto": "npm:^12.6.2"
     "@types/react-copy-to-clipboard": "npm:^5.0.7"
@@ -1652,7 +1652,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@polkadot/react-qr@workspace:packages/react-qr"
   dependencies:
-    "@polkadot/ui-settings": "npm:3.6.6-2-x"
+    "@polkadot/ui-settings": "npm:3.6.6"
     "@polkadot/util": "npm:^12.6.2"
     "@polkadot/util-crypto": "npm:^12.6.2"
     "@types/react-qr-reader": "npm:^2.1.7"
@@ -1673,7 +1673,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@polkadot/reactnative-identicon@workspace:packages/reactnative-identicon"
   dependencies:
-    "@polkadot/ui-shared": "npm:3.6.6-2-x"
+    "@polkadot/ui-shared": "npm:3.6.6"
     "@polkadot/util": "npm:^12.6.2"
     "@polkadot/util-crypto": "npm:^12.6.2"
     "@types/react-native": "npm:^0.72.8"
@@ -1692,7 +1692,7 @@ __metadata:
   resolution: "@polkadot/ui-keyring@workspace:packages/ui-keyring"
   dependencies:
     "@polkadot/keyring": "npm:^12.6.2"
-    "@polkadot/ui-settings": "npm:3.6.6-2-x"
+    "@polkadot/ui-settings": "npm:3.6.6"
     "@polkadot/util": "npm:^12.6.2"
     "@polkadot/util-crypto": "npm:^12.6.2"
     "@types/mkdirp": "npm:^2.0.0"
@@ -1708,7 +1708,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/ui-settings@npm:3.6.6-2-x, @polkadot/ui-settings@workspace:packages/ui-settings":
+"@polkadot/ui-settings@npm:3.6.6, @polkadot/ui-settings@workspace:packages/ui-settings":
   version: 0.0.0-use.local
   resolution: "@polkadot/ui-settings@workspace:packages/ui-settings"
   dependencies:
@@ -1724,7 +1724,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@polkadot/ui-shared@npm:3.6.6-2-x, @polkadot/ui-shared@workspace:packages/ui-shared":
+"@polkadot/ui-shared@npm:3.6.6, @polkadot/ui-shared@workspace:packages/ui-shared":
   version: 0.0.0-use.local
   resolution: "@polkadot/ui-shared@workspace:packages/ui-shared"
   dependencies:
@@ -1779,7 +1779,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@polkadot/vue-identicon@workspace:packages/vue-identicon"
   dependencies:
-    "@polkadot/ui-shared": "npm:3.6.6-2-x"
+    "@polkadot/ui-shared": "npm:3.6.6"
     "@polkadot/util": "npm:^12.6.2"
     "@polkadot/util-crypto": "npm:^12.6.2"
     jdenticon: "npm:3.2.0"