Yesterday, Google released a new operating system Android 5.1 Lollipop. Fortunately, the developers did not have to languish in expectation of a set of tools Android 5.1 SDK, because now you can download on the official website of Android.
Update turned not particularly significant, however, has a number of innovations released. For beginners, developers have new API, which will help to test future application for errors, provided that the smartphone is equipped with two SIM-cards.
For Google, it was important to develop support for smartphones with two SIM-cards, especially after the release of Android One. In addition, the company decided to abandon in favor of HTTP URLConnection and improved tools for telecom operators.