Update README.md

Author: XceedBoucherS

README.md

@@ -33,6 +33,8 @@ Xceed Software
 
 ## Latest news
 
+**January 26, 2020** v4.0.0 released with [46 bug fixes and improvements](../../wiki/Improvements-in-v4.0.0). 
+
 **January 30, 2020** v3.8.0 released with [35 bug fixes and improvements](../../wiki/Improvements-in-v3.8.0). 
 
 **November 26, 2019** v3.7.0 released with [17 bug fixes and improvements](../../wiki/Improvements-in-v3.7.0).