Google Releases Android 5.1: Latest Android Lollipop Update Includes New Security Features, HD Voice

Google Inc. released the Android 5.1 update Monday, a new version of its Android Lollipop operating system that fixes a number of problems with earlier releases and includes a few new tricks. Google is rolling out the update now for the Nexus 4 and Nexus 5 smartphones, as well as the Nexus 7 tablet.

Google’s new Nexus 6 from Motorola is not mentioned in the the press release announcing the Android 5.1 update, and the smartphone also did not show up in documents released before the official announcement by T-Mobile that were spotted by Android Police. The carrier’s support documentation for the Nexus 4, Nexus 5 and Nexus 7 all mention Android 5.1, but no mention of the new Lollipop update is found on the support page for the Nexus 6 as of this writing.

Android 5.1 features support for phones with dual SIM, and also includes the ability to change colors for the phone dialer app depending on which SIM card a user has selected. With the update, Lollipop also includes HD voice calling for select devices, as well as new quick settings for Wi-Fi and Bluetooth.