Microsoft have announced Windows 11 which will be available later this year
Windows 11 has a new design with rounded corners and the start menu is in the centre of the console , not on the side.
Not all computers however will be able to run Windows 11 and there is a link on this page that will allow you to download an app which should be able to tell you if your current computer can run it.
The sticking point currently maybe if your computer is running , Trusted Platform Module (TPM) Version 2
For more information on Windows 11 check out this post from Gizmodo