Xperia Z1, Z Ultra and Z1c getting 5.1 update now

Looks like Sony is rolling out more updates to some older devices.  This time to the Z1, the Z Ultra and the Z1 Compact; and they'll be getting the 5.1.1 update (which brings in the Stagefright vulnerability patch

Sony Xperia Android 5.1.1 Lollipop Changelog

– Improvements to volume and silent mode control, more control of your alerts, simplified and enhanced design
– Integration of LinkedIn with your Calendar and Contacts
– Camera focus, speed and accuracy improvements in Superior Auto mode
– Many new features for Xperia in Business, enhancing enterprise support for Xperia
– Now take pictures from the camera using Sony SmartWatch 3; use the SW3 as a remote shutter button
– Instant calendar events – create & share smart events directly from any email
– Calendar agenda in Email – no need to switch apps to check upcoming events
– Richer Xperia themes
– New Settings menu icons
– Additional options for Wi-Fi and Bluetooth in notification menu

Source:  http://www.xperiablog.net/2015/09/14/android-5-1-rolling-to-xperia-z1-z-ultra-and-z1-compact-14-6-a-0-368/