Update README.md

Author: XceedBoucherS

README.md

@@ -18,8 +18,6 @@ Starting at v4.0.0, this free toolkit is provided under the [Xceed Community Lic
 
 **January 7, 2021** v4.0.2 released with [22 bug fixes and improvements](../../wiki/Improvements-in-v4.0.2). 
 
-*August 17, 2020* v4.0.1 of the [Plus Edition](../../wiki/Xceed-Toolkit-Plus-for-WPF) released with [31 bug fixes and improvements](../../wiki/Improvements-in-v3.5.0#Plus401)
-
 
 ## Controls included
 
@@ -167,6 +165,8 @@ A commercial license can be purchased at [Xceed](https://xceed.com).
 
 ## Release history
 
+* **December 2, 2021 v4.2.0 released with [18 bug fixes and improvements](../../wiki/Improvements-in-v4.2.0).**
+* * July 19, 2021, released v4.2.0 of the [Plus Edition](../../wiki/Xceed-Toolkit-Plus-for-WPF) released with [23 bug fixes and improvements](../../wiki/Improvements-in-v3.5.0#Plus420).
 * **May 18, 2021 v4.1.0 released with [20 bug fixes and improvements](../../wiki/Improvements-in-v4.1.0).**
 * January 25, 2021, released v4.1.0 of the [Plus Edition](../../wiki/Xceed-Toolkit-Plus-for-WPF) released with [27 bug fixes and improvements](../../wiki/Improvements-in-v3.5.0#Plus410).
 * **January 7, 2021 v4.0.2 released with [22 bug fixes and improvements](../../wiki/Improvements-in-v4.0.2).**