Google just released Androids latest 5.1 version available for Nexus 10, Nexus 5 and Nexus 7 (wifi), which as opposed to the bugfix updates (5.0.1 and 5.0.2) following the 5.0 Lollipop main version contain new functions and developments as well.
Android 5.1 is Googles answer to the criticism addressed to Lollipops first edition (5.0). Updates include the reintroduction of the mute quick switch and new settings which enable to manage WiFi and Bluetooth connections without entering their separate menus, while problems regarding memory management and unstable WiFi connections are supposed to be fixed as well. A new addition now permits the system to supports several SIM cards. Although we have seen dual SIM droids out there, until now the management of other SIMs was the responsibility of the manufacturers. This is changed since once can simply set in the OS which card should be used and how. Another new development is a thumbnail placed on the volume control bar. By touching it we can instantly change the volume of notifications, even during listening to music, without stopping it. Hovering notifications will not disappear anymore, if we nudge them gently upwards. In addition to the abovementioned features Google added several little but pleasant additions to make the whole thing more user friendly, such as offering better quality HD Voice calls.
Google did not forget security settings either, which resulted in a completely new function. Should devices using Android 5.1 (and Nexus 6 and Nexus 9) get lost or stolen, they are only operable if the user logs in into his or her Google account. The login is still necessary if the original settings are reset.
Android Lollipop became first available on 3 November 2014, while the first update entered the market on 2 December 2014, and the second 17 days later.
(Micromax Canvas A1, Karbonn Sparkle V and Spice Dream Uno devices will receive the 5.1 version directly since the Lollipop 5.0 update has still not been released for them.)