Updated 07/20/15: ‘ve changed some slides, added new ones, to account for changes new features in Developer eview 2. so, when you power up your phone, be sure to take a look at the cool new boot animation! Turn off your phone turn it back on if you missed it! Go to Settings > About phone, then tap the Android version repeatedly until a stylized “M” icon appears onscreen. Next, tap hold the icon for a second or two, then repeat this process. Eventually, a shrug emoticon—¯_(ツ)/¯ —will appear onscreen. As much as I like the ¯(ツ)_/¯ emoticon, here’s hoping has something more interesting to show in the final Marshmallow release. Update: In Developer eview 2, the letter groupings are gone. ‘re not sure what will decide to go with for the final release. In Android Marshmallow eview 3, you’ll notice that the + icon is gone. In Android M eviews 1 2, Go to Settings > Developer options flip the System UI Tuner toggle to the on position. Go back to the main Settings screen, then tap System UI Tuner. In Android Marshmallow eview 3, turning on System UI Tuner is a bit more convoluted—visit roid for full instructions. If you want all background tasks to continue for a given app, though, you can turn “doze” mode off on a per-app basis. Go to Settings > Battery, then go to the Options menu (the three dots in the upper right) tap Battery optimization. Tap the downward-pointing arrow, then tap l apps. Tap an app’s name, then tap Don’t optimize. Tap Done when you’re all set. The quick settings drawer’s new Do Not Disturb item has a few tricks worth checking out. th it, you can also now toggle Do Not Distrub on or off, set a duration, specify which notifications you want to see. By default, this view shows only apps with access to your information. To show hidden system services as well, tap the Options button (the three dots in the upper right), then tap Show system. The gear icon in the Apps settings houses a few other advanced features, such as whether an app can “draw” over other apps (that is, whether an app can display information atop another app) or whether an app can modify system settings. As roid points out, though, it’s still unclear why these features are here, so we’ll have to wait see. Instead of the toolbar that appeared at the top of the screen, as was the case in prior version of Android, text editing comms now appear in a floating toolbar directly above the text you’ve selected. Tap the Options button (the three dots) to view more comms.