Microsoft released an update to SCCM from version 1511 to version 1602 a few months back.
Updating from SCCM 1511 to 1602 is a fairly easy process, you just need to follow the steps;
Go to your SCCM console, and then to Administration, Cloud Services, then Updates and Servicing.
Right click the update and choose to run the prerequisite check. This will take a few minutes, so give this sometime to complete then refresh the page and make sure there are no errors. Now to install 1602, again right click on the update, but this time choose Install Update Pack. It is a very easy upgrade process, you basically just need to follow the bouncing ball. The upgrade can take 10 – 30 minutes depending on your environment.
Once completed you can check your version number within SCCM by going to the top left hand corner, clicking the down arrow, then choosing About Configuration Manager. You can see, as in the picture below, the System Centre Configuration Manager version is on 1602.
Click the link to see how to install the next update, KB3155482
SCCM version 1602 introduces some great new features as below;