Version 21.0.2.1 why

I have to uninstall and reinstall today I had 32bit  NIS version 21.0.1.3, now I have 21.0.2.1 is this correct ????, or has something gone wrong with the download.

 

Do I have to uninstall and reinstall again to correct ???

 

Toshiba Laptop 32Bit Win 7/Pro

NIS 2013

 

Thanks