The update was seen on a Nexus 5, however there is no confirmation regarding the release date. We are presuming that the update should arrive on or just before Google’s upcoming I/O event along with a pair of new Nexus devices. Here is the list of fixes that are expected to arrive in the 4.4.3 update:•Frequent data connection dropout fix•mm-qcamera-daemon crash and optimization fixes•Camera focus in regular and HDR modes fixes•Power Manager display wakelock fix•Multiple Bluetooth fixes•Fix for a random reboot•App shortcuts sometimes got removed from launcher after update•USB debugging security fix•App shortcuts security fix•Wi-Fi auto-connect fix•Other camera fixes•MMS, Email/Exchange, Calendar, People/Dialer/Contacts, DSP, IPv6, VPN fixes•Stuck in activation screen fix•Missed call LED fix•Subtitle fixes•Data usage graph fix. Source-DIGIT.
