diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd29217..7e194ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Bowser Changelog
 
+
+### 1.4.2 (July 26, 2016)
+
+- [FIX] Fix missing `isUnsupportedBrowser` in typings description
+- [DOC] Fix `check`'s declaration in README
+
 ### 1.4.1 (July 7, 2016)
 
 - [FIX] Fix `strictMode` logic for `isUnsupportedBrowser`
diff --git a/README.md b/README.md
index c539419..0386ff3 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Use it to get object with detected flags of your current browser.
 ### bowser._detect(ua `:String`)`:Object`
 Use it to get object with detected flags from User Agent string.
 
-### bowser.check(minVersions`:Object`, strictMode`:Boolean`)`:Boolean`
+### bowser.check(minVersions`:Object`, strictMode`:Boolean`, [ua]`:String`)`:Boolean`
 Use it to check if browser supported.
 
 ```
diff --git a/package.json b/package.json
index c60442c..f619e12 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "sniff",
     "detection"
   ],
-  "version": "1.4.1",
+  "version": "1.4.2",
   "homepage": "https://github.com/ded/bowser",
   "author": "Dustin Diaz <dustin@dustindiaz.com> (http://dustindiaz.com)",
   "main": "./src/bowser.js",
diff --git a/typings.d.ts b/typings.d.ts
index 485c4b0..7cb0cb1 100644
--- a/typings.d.ts
+++ b/typings.d.ts
@@ -40,6 +40,7 @@ export const windows: boolean
 export const windowsphone: boolean
 
 export function test(browserList: Flag[]): boolean
+export function isUnsupportedBrowser(minVersions:Object, strictMode?:Boolean, ua?:string): boolean
 
 export type Flag = "a" | "b" | "c" | "android" | "bada" | "blackberry"
                  | "chrome" | "firefox" | "gecko" | "ios" | "msie"