Zend Guard System Requirements
Supported Operating Systems:
- Linux x86
- Linux x86-64 (only with 32 bit libraries)
- Windows x86 XP / 2007 / 2008
- Mac OS X 10.8
Supported PHP Versions:
- 5.3.x through 5.4 (using Zend Guard Loader as the runtime decoder)
- 4.2.x through 5.2.x (using Zend Optimizer as the runtime decoder)


