As specified by Sprint's update support documentation, this is indeed a security update. And looking into the commits made to 4.4.4, we can now see that this is the case. We can also see that the
Steps to install Android 4.4.4 KitKat CM11 on Galaxy Y S5360: Connect your phone to the PC and transfer both downloaded zip files on your phoneβs external SD card. Disconnect your phone from your PC and switch it off. Enter your phone into recovery mode now. For doing so, switch it off.
Step 3. Close Genymotion and open VirtualBox. Go to File and choose Import Appliance. Choose the file you downloaded earlier and hit next. On the next screen you need to change the Machine Base Folder to the path you copied on Step 2. You can also change the name to something more distinguishable if you want. JOUY.