Google just rolled out the second preview of Android M, making it just one step closer to official release. The update comes with lots of minor fixes and a handful of platform changes. Android M was first unveiled in May with a permission model that enables apps to ask for specific permissions from users. This model is different from others that ask for blanket access once they are installed.
Android M’s second preview
The changes within Android M primarily involve permission modifications. Other permission changes were made to accounts, Wi-Fi, and Bluetooth.