If you are someone who regularly roots a smartphone or tablet, then there is a very high chance that you are already familiar with Greenify. This is an app which is largely considered to be a staple of any rooters toolbox and with good reason. Greenify looks to essentially give the user greater control over the control that apps have. In short, look to increase performance, battery life, memory and otherwise, by limiting the power of specific apps. Due to nature of rooting, this was initially (and still is) a powerful tool for the user with root access. However, more recently, the app has looked to branch out and offer users who do not root their devices, a similar level of functionality and control. An aspect which looks to be further improved upon in the latest update. This latest version is v2.8 and has spent much of its existence so far in a beta form. A tag which has now been lost as v2.8 exits beta and becomes a more stable offering. Of course, this does mean that you should not still expect a bug or two, but either way it is now good to go.
One of the big changes with v2.8 is the introduction of an experiment featured dubbed "Aggressive Doze". As the name suggests, this is a feature which is designed for devices running on the latest version of Android, Marshmallow, and in particular, the Doze feature which comes with Marshmallow. A feature which looks to amplify the battery-saving abilities of Doze. Aggressive Doze is a feature which is accessible for everyone as it does not require root to access, as does auto-hibernation. In contrast, another experimental feature, "Shallow Hibernation", is also included in this version and this feature does require root access to function.
Additional features listed on the changelog include nav-bar gestures for Android 6.0, an added ability to toggle "screen off" (requires root), compatibility with the Tasker plug-in and a new wake-lock free hibernation engine. The update is listed on the Play Store and should be arriving on installed devices soon enough. Those interested in getting the new features as soon as possible, can download the APK below and sideload to their device.