Requirements: مهم- 

CWM Touch 6.0.3.2+ or latest TWRP 
(if you have a metadata error when flashing, you're using a wrong recovery!)
- Knowledge about Android installation



Downloads
Nightly builds:
http://dl.omnirom.org/i9300

Gapps:
Use PA-gapps in the meantime

Installation
- Download gapps and the latest nightly build
- Reboot to recovery
- Flash the nightly build then gapps
- WIPE DATA!!!
- Reboot and enjoy your Kitkat

Known device specific issues
- Audio IC power gating isn't performed efficiently, which causes battery drain.
 (occurs in all I9300 Samsung-free ROMs currently)

FAQ:
Q: Why do I get error code 7 when trying to flash ?
A: Because you are using old recovery. Update to the latest TWRP.

XDA:DevDB Information
OmniROM 4.4 for GT-I9300, a ROM for the Samsung Galaxy S III I9300

Contributors
ROM OS Version: 4.4.x KitKat
ROM Kernel: Linux 3.0.x

Version Information
Status: Beta

Created 2013-11-12
Last Updated 2013-11-28