diff --git a/CHANGELOG.md b/CHANGELOG.md
index f501bab6d..4a7076f3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,20 @@
+## [6.4.2](https://github.com/NativeScript/NativeScript/compare/6.4.1...6.4.2) (2020-02-27)
+
+
+### Bug Fixes
+
+* **ios:** Ensure ObserverClass is initialized ([#8365](https://github.com/NativeScript/NativeScript/issues/8365)) ([06b9ecf](https://github.com/NativeScript/NativeScript/commit/06b9ecf))
+* **tabs:** Tabs animation and selected index fixes ([#8377](https://github.com/NativeScript/NativeScript/issues/8377)) ([acaabb](https://github.com/NativeScript/NativeScript/commit/acaabb))
+* XHR readystatechange event ([cff125d](https://github.com/NativeScript/NativeScript/commit/cff125d))
+* guard cachedDrawable ([#8320](https://github.com/NativeScript/NativeScript/issues/8320)) ([dd11158](https://github.com/NativeScript/NativeScript/commit/dd11158))
+
+
+### Features
+
+* Add .kt extension to  known extensions map ([#8363](https://github.com/NativeScript/NativeScript/issues/8363)) ([398457c](https://github.com/NativeScript/NativeScript/commit/398457c))
+
+
+
 ## 6.4.1 (2020-02-17)
 
 
diff --git a/tns-core-modules-package/package.json b/tns-core-modules-package/package.json
index 508842abb..6f6f124b1 100644
--- a/tns-core-modules-package/package.json
+++ b/tns-core-modules-package/package.json
@@ -1,25 +1,25 @@
 {
-  "name": "tns-core-modules",
-  "main": "index",
-  "types": "index.d.ts",
-  "description": "Telerik NativeScript Core Modules",
-  "version": "6.5.0",
-  "homepage": "https://www.nativescript.org",
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/NativeScript/NativeScript"
-  },
-  "license": "Apache-2.0",
-  "dependencies": {
-    "@nativescript/core": "*"
-  },
-  "devDependencies": {
-    "tns-platform-declarations": "*"
-  },
-  "nativescript": {
-    "platforms": {
-      "ios": "5.0.0",
-      "android": "5.0.0"
+    "name": "tns-core-modules",
+    "main": "index",
+    "types": "index.d.ts",
+    "description": "Telerik NativeScript Core Modules",
+    "version": "6.5.0",
+    "homepage": "https://www.nativescript.org",
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/NativeScript/NativeScript"
+    },
+    "license": "Apache-2.0",
+    "dependencies": {
+        "@nativescript/core": "*"
+    },
+    "devDependencies": {
+        "tns-platform-declarations": "*"
+    },
+    "nativescript": {
+        "platforms": {
+            "ios": "5.0.0",
+            "android": "5.0.0"
+        }
     }
-  }
-}
+}
\ No newline at end of file
diff --git a/tns-core-modules-widgets/package.json b/tns-core-modules-widgets/package.json
index a99b2cd95..f2f570228 100644
--- a/tns-core-modules-widgets/package.json
+++ b/tns-core-modules-widgets/package.json
@@ -1,24 +1,24 @@
 {
-  "name": "tns-core-modules-widgets",
-  "version": "6.5.0",
-  "description": "Native widgets used in the NativeScript framework.",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/NativeScript/NativeScript"
-  },
-  "author": "NativeScript team",
-  "license": "Apache-2.0",
-  "bugs": {
-    "url": "https://github.com/NativeScript/NativeScript/issues"
-  },
-  "homepage": "https://github.com/NativeScript/NativeScript/blob/master/tns-core-modules-widgets#readme",
-  "nativescript": {
-    "platforms": {
-      "ios": "6.0.0",
-      "android": "6.0.0"
+    "name": "tns-core-modules-widgets",
+    "version": "6.5.0",
+    "description": "Native widgets used in the NativeScript framework.",
+    "scripts": {
+        "test": "echo \"Error: no test specified\" && exit 1"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/NativeScript/NativeScript"
+    },
+    "author": "NativeScript team",
+    "license": "Apache-2.0",
+    "bugs": {
+        "url": "https://github.com/NativeScript/NativeScript/issues"
+    },
+    "homepage": "https://github.com/NativeScript/NativeScript/blob/master/tns-core-modules-widgets#readme",
+    "nativescript": {
+        "platforms": {
+            "ios": "6.0.0",
+            "android": "6.0.0"
+        }
     }
-  }
-}
+}
\ No newline at end of file
diff --git a/tns-platform-declarations/package.json b/tns-platform-declarations/package.json
index 93ca6c6be..e4ef21b7d 100644
--- a/tns-platform-declarations/package.json
+++ b/tns-platform-declarations/package.json
@@ -1,37 +1,37 @@
 {
-  "name": "tns-platform-declarations",
-  "version": "6.5.0",
-  "description": "Platform-specific TypeScript declarations for NativeScript for accessing native objects",
-  "main": "",
-  "scripts": {
-    "test": "tsc",
-    "package-tag": "npm version $npm_package_version-$PACKAGE_VERSION --no-git-tag-version"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+ssh://git@github.com/NativeScript/NativeScript.git"
-  },
-  "keywords": [
-    "NativeScript",
-    "TypeScript",
-    "declarations",
-    "native",
-    "platform-specific",
-    "tns",
-    "ts",
-    "ns"
-  ],
-  "author": {
-    "name": "Telerik",
-    "email": "support@telerik.com",
-    "url": "http://www.telerik.com"
-  },
-  "license": "Apache-2.0",
-  "bugs": {
-    "url": "https://github.com/NativeScript/NativeScript/issues"
-  },
-  "homepage": "https://github.com/NativeScript/NativeScript#readme",
-  "devDependencies": {
-    "typescript": "^3.7.5"
-  }
-}
+    "name": "tns-platform-declarations",
+    "version": "6.5.0",
+    "description": "Platform-specific TypeScript declarations for NativeScript for accessing native objects",
+    "main": "",
+    "scripts": {
+        "test": "tsc",
+        "package-tag": "npm version $npm_package_version-$PACKAGE_VERSION --no-git-tag-version"
+    },
+    "repository": {
+        "type": "git",
+        "url": "git+ssh://git@github.com/NativeScript/NativeScript.git"
+    },
+    "keywords": [
+        "NativeScript",
+        "TypeScript",
+        "declarations",
+        "native",
+        "platform-specific",
+        "tns",
+        "ts",
+        "ns"
+    ],
+    "author": {
+        "name": "Telerik",
+        "email": "support@telerik.com",
+        "url": "http://www.telerik.com"
+    },
+    "license": "Apache-2.0",
+    "bugs": {
+        "url": "https://github.com/NativeScript/NativeScript/issues"
+    },
+    "homepage": "https://github.com/NativeScript/NativeScript#readme",
+    "devDependencies": {
+        "typescript": "^3.7.5"
+    }
+}
\ No newline at end of file