XDA Developers reports that the Nexus 7 (2013) Wi-Fi only variant is the first device to receive the Android 4.4.3 update over-the-air, and as reported earlier, this is an incremental update to Android 4.4.2. The update for Nexus 7 (2013) tablet is now available OTA (over-the-air) and comes with build number KTU84L. The Android 4.4.3 update is about 74MB in size and brings security enhancements and various bug fixes.
We can expect to see the Android 4.4.3 KitKat OTA update for other Nexus devices rolling out in coming days. Further, Google Play Edition devices can also be expected to receive the Android 4.4.3 update soon.
One of the major fixes that the Android 4.4.3 update is expected to bring is the 'mm-qcamera-daemon' crash in the Nexus 5 smartphone. Earlier, the Nexus 5 smartphone was noted to be affected by a new battery drain issue, which Google claimed was due to high CPU usage of the 'mm-qcamera-daemon' process that led to the battery dying sooner than expected. It's worth pointing out that the 'mm-qcamera-daemon' issue was said to be affecting all Android 4.4 KitKat-based and Qualcomm-powered devices.