[Zenfone 5 General] heynando:
how can you say such utter BS without feeling bad?

first these packed into android 4.4 itself

4.4	October 31, 2013[128][129]
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[130]
Ability for applications to use "immersive mode" to keep the navigation and status bars hidden while maintaining user interaction[131]
Action overflow menu buttons are always visible, even on devices with a "Menu" key, which was officially deprecated by Android 4.0.[132]
Optimizations for performance on devices with lower specifications, including zRAM support and "low RAM" device API[126]
Wireless printing capability[126]
NFC host card emulation, enabling a device to replace smart cards[126]
WebViews now based on Chromium engine (feature parity with Chrome for Android 30)
Expanded functionality for notification listener services[126]
Public API for developing and managing text messaging clients[133]
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).[66]
Sensor batching, step detector and counter APIs[126]
Settings application now makes it possible to select default text messaging and home (launcher) application
Audio tunneling, audio monitoring and loudness enhancer[134]
Built-in screen recording feature (primarily for developers, as usage of ADB is required)[135]
Native infrared blaster API
Expanded accessibility APIs and system-level closed captioning settings
Android Runtime (ART) introduced as a new experimental application runtime environment, not enabled by default, as a replacement for the Dalvik virtual machine[136]
Bluetooth Message Access Profile (MAP) support[137]
Disabled access to battery statistics by third-party applications[138]
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[139]
Browser text wrap is disabled.[140]
4.4.1	December 5, 2013[141]
Improvements to auto focus, white balance and HDR+ for the Nexus 5 camera[142][143]
Better application compatibility for the experimental Android Runtime (ART)
Camera application now loads Google+ Photos instead of Gallery when swiping away from the camera view
Miscellaneous improvements and bug fixes
4.4.2	December 9, 2013[144]
Further security enhancements and bug fixes
Removal of the "App Ops" application permissions control system, introduced in Android 4.3[145]

then these regarding Zenfone5 only

V1.18.40.9
Improvement Item:
1. Improve call voice quality
2. Adjust the color tuning of front cam to decrease purplish issue on some modules
3. [GPS] Add Broadcom SW solution for GPS
4. Remove the attribute of "Last update"
5. Fixed the Front Camera applied EV error.
6. [DRM][ZenCare-732]Set Jam music as ringtone failed.
7. Fine tune beautification features to make better-looking selfies
8. ASUS Email
8-1. Add manual sync function to Email widget.
8-2. Add drop-down refresh function to combined view.
8-3. Add “Chat now” function to launch Omlet in the email; you will be able to chat with recipients in the same email.
8-4. Renew drawer interface design.
8-5. System performance enhancement.
9. ASUS Calendar
9-1. Show lunar calendar information in widget when system language is set to traditional or simplified Chinese.
9-2. In local Calendar, allow to edit or delete a single instance in a series of recurring events.
9-3. Improve widget layout.
9-4. Solve cover display malfunction caused by Emoji file name while gallery folder is linked to calendar event.

V1.18.40.10
Improvement Item:
1. Improved system stability

V2.19.40.18 (Android 4.4)
Improvement Item:
1.System update to Android 4.4
2.Improved Miracast compatibility
3.Added support for DLNA protocol
4.Fix Russian translation
5.Fix occasional power drained issue
Key New functions:
1. Do Not Disturb mode
2. Call Guard(applies to models sold in China and Taiwan only)
3. Full dual standby with two SIM cards(applies to dual SIM models only)
4. Filter effects for videos
5. Reply via Call-in SIM card, system will auto select the right phone

V2.20.40.9
Improvement Item:
1.Fixed the reddish issue of front camera
2.Fixed create new interface get NULL value
3.Fixed hookey not hold on when SIM2's phone call.
4.Fixed - APK files can’t be send via Bluetooth
5.Enable SD card OTA update on recovery mode
6.Fixed Line will crash when switch the front/rear camera
7.Fixed - Audio playback on Bluetooth headsets (A2DP) is too soft
8.Fixed maxxaudio effect is stopped when turning on google equalizer
9.Fixed - FM radio reception breaks after 15 minutes
10.Fix Cloud Print version update issue
11.Fix USSD issue which randomly fails to be executed correctly when using Secondary SIM
New Feature:
1. Add release note website link for ASUS Software Update, users can check release notes details directly through the link
2. Add Feedback APP for users to communicate and send feedback to ASUS fast and easily

---------- Post added at 10:02 PM ---------- Previous post was at 09:58 PM ----------

Philz is out of the game, I mean he had to abandon the project to pursue new other projects, his words not mine.. So he might end up not answering you after all.