If you're like many smartphone owners using non-stock versions of Android, you're probably twiddling your thumbs waiting for your device maker to release an upgrade to Android 9 Pie. But have you wondered why you're waiting so long when your Pixel- and Essential-toting friends already have their upgrades? Sony can explain. In a blog post promising Pie updates for recent Xperia phones (the XZ Premium, XZ1 family and XZ2 series) in November, the company also provided an infographic outlining the steps between Google's OS release and seeing the new software on your handset. It's a simplified take on what's happening, but it does provide a good summary of what's involved.