Android 4.4 KitKat ~ TechnoMoto

Android 4.4 KitKat (API level 19)

Google announced Android 4.4 KitKat on September 3, 2013. Although initially under the "Key Lime Pie" ("KLP") codename, the name was changed because "very few people actually know the taste of a key lime pie." Some technology bloggers also expected the "Key Lime Pie" release to be Android 5. KitKat debuted on Google's Nexus 5 on October 31, 2013, and has been optimised to run on a greater range of devices than earlier Android versions, having 512 MB of RAM as a recommended minimum; those improvements were known as "Project Svelte" internally at Google. The required minimum amount of RAM available to Android is 340 MB, and all devices with less than 512 MB of RAM must report themselves as "low RAM" devices.

Version: 4.4 Release date: October 31, 2013

Refreshed interface with white elements instead of blue
Clock no longer shows bold hours, all digits are thin. The H, M, and S markings for the stopwatch and timer have been removed, leaving just the numbers.
Ability for applications to trigger translucency in the navigation and status bars
Ability for applications to use "immersive mode" to keep the navigation and status bars hidden while maintaining user interaction
Action overflow menu buttons are always visible, even on devices with a "Menu" key, which was officially deprecated by Android 4.0.
Optimizations for performance on devices with lower specifications, including zRAM support and "low RAM" device API
Wireless printing capability
NFC host card emulation, enabling a device to replace smart cards
WebViews now based on Chromium engine (feature parity with Chrome for Android 30)
Expanded functionality for notification listener services
Public API for developing and managing text messaging clients
New framework for UI transitions
Storage Access Framework, an API allowing apps to retrieve files in a consistent manner. As part of the framework, a new system file picker allows users to access files from various sources (including those exposed by apps, such as online storage services).
Sensor batching, step detector and counter APIs
Settings application now makes it possible to select default text messaging and home (launcher) application
Audio tunneling, audio monitoring and loudness enhancer
Built-in screen recording feature (primarily for developers, as usage of ADB is required)
Native infrared blaster API
Expanded accessibility APIs and system-level closed captioning settings
New experimental runtime virtual machine, ART (not enabled by default)
Bluetooth Message Access Profile (MAP) support
Disabled access to battery statistics by third-party applications
Settings application no longer uses a multi-pane layout on devices with larger screens
Wi-Fi and mobile data activity (TX/RX) indicators are moved to quick settings
Browser text wrap is disabled.

Version: 4.4.1 Release date: December 5, 2013

Improvements to auto focus, white balance and HDR+ for the Nexus 5 camera
Better application compatibility for the experimental ART runtime
Camera application now loads Google+ Photos instead of Gallery when swiping away from the camera view
Miscellaneous improvements and bug fixes

Version: 4.4.2 Release date: December 9, 2013

Further security enhancements and bug fixes
Removal of the "App Ops" application permissions control system, introduced in Android 4.3

Version: 4.4.3 Release date: June 2, 2014

Refreshed Dialer app interface
Updated the Chromium based WebView to version 33 (screencasting to DevTools, HTML5 Canvas hardware acceleration performance improvements, vibration API, HTML5 form validation, HTML5 datalist)
Miscellaneous improvements and bug fixes
New issues introduced.

Version: 4.4.4 Release date: June 19, 2014

CVE-2014-0224 fixed, eliminating an OpenSSL man-in-the-middle vulnerability.