Zend is pleased to announce the release of Zend Guard 5.5!

You can download this release from: 

Table of Contents:

1. Changes in Zend Guard
2. Known Bugs
3. Installation Instructions
4. System Requirements

1. Changes in Zend Guard 
  1.1 Changes in Zend Guard from version 5.0.1 to 5.5

 * Full support for PHP 5.3

  1.2 Changes in Zend Guard from version 5.0 to 5.0.1
 * Exclude resources of files or folders from the project tree
 * Support for non-English operating systems with source and output folders
 * Enhanced documentation about obfuscation and its implications
 * Bug fix - All sources are now searched during Export Candidates
 * Bug fix - "ignore-pattern" is now handled correctly in --export candidates
 * Bug fix - Backward support for Zend Studio compatibility is now supported
 * Bug fix - Wrapper now frees the Encoder library after failing to encode
 * Bug fix - It is now possible to integrate Zend Studio for Eclipse or other editors
 * Bug fix - No longer crashes while scanning a large amount of files
 * Bug fix - Working with encoded files only is now enabled only in the project level
 * Bug fix - It is now possible to enter a product name with spaces
 * Bug fix - "preserve-docs" now preserves docs
 * Bug fix - Marking files as ignored now shows the full path and is no longer confusing 
             from the GUI
 * Bug fix - Newly created licenses now work if the locale is other than English
 * Bug fix - Encoding a Japanese source folder with the php4 option is now functional
 * Bug fix - When using header files or an exclude list, the exe now finds a tmp location
 * Bug fix - The command line now mentions the location of the binaries in the package
 * Bug fix - Disabling the "Override project configuration" checkbox for ignored resources 
             is no longer redundant
 * Bug fix - The default location for installation in Linux is no longer 5_0_0
 * Bug fix - Uninstalling in Mac now removes the folders/shortcuts

  1.3 Changes in Zend Guard from version 4.1 to 5.0
 * PHP 5.2 Support
 * New GUI for better management and control based on the RCP technology
 * Parameters file for all in one preferences and encoding action
 * Wildcard support for exclude list
 * Variable support for easy file paths description
 * Easy license management - separate private key control
 * Lock mechanism for encoded files to prevent external changes
 * Line numbers removal option
  1.4 Changes in Zend Guard from version 4.0 to 4.1

* Improved compatibility with Zend Optimizer 2.6
* Improved 'mb_string' extension support
* Added support for encoding files without a file extension
* Improved support for non-English characters
* Bug fix - Variables with same name and a different case no longer become confused
* Bug fix – Using strong obfuscation no longer causes crashes
* GUI - Added an option to close open projects
* GUI - Bug fix - The "ignore pattern" (CVS) option now works

2. Known issues and Limitations

* Encoding/obfuscation for PHP 5.3 is not compatible with PHP 5.2 and 
  earlier releases, and vice versa. That is, a file encoded to run on PHP 5.3 
  will not be loaded on PHP 5.2 and vice versa. 
  Workaround: Encode your application separately to run on PHP 5.3 and PHP 5.2.

User Interface:
* Zend Studio cannot initiate a few instances of Zend Guard and can integrate only 
  with a new one

* Relative names do not work with --ignore and -–exclude-file
* Using inexact file names (different cases, / instead of \, or not full paths)
  does not work with --ignore and --exclude-file (Windows only)
* "Work only with encoded files" option does not work if it is not applied for all files
* Extending stdClass gives a blank output when a file is encoded

* Using mbstring.func_overload with obfuscation requires exporting functions
  that are overloaded. 

Class Obfuscation:
* Implementing PHP interfaces (such as Iterator) requires exporting
  interface methods
* Autoloading does not work for obfuscated classes (due to different class
* Obfuscating class and function names can break any code that accesses a function
  by string, such as calling a variable function like $func(), or calling a PHP
  internal function to access a class/function as a variable, such as 
  call_user_func($func), etc.
* --export-php may not automatically export some SPL iterator classes

3. Installation Instructions

Double-click on the self-extracting archive, and follow the instructions in the
automated installation wizard.

Extract the downloaded tar.gz file: tar xzvf filename.tar.gz
As soon as the extraction is done, run the extracted binary: ./ZendGuard.bin
and follow the instructions in the installation wizard.

Extract the downloaded .zip or .dmg file by double clicking on it.
Double click on the archive directory in order to start the
Zend guard installation wizard and follow the instructions 
in the installation wizard.

4. System Requirements

- Supported operating systems:
  - Linux    x86
  - Linux    x86-64
  - Windows  x86 2000 / XP / 2003 / Vista
  - Mac OS X 10.4

- 500MHz processor
- 128MB RAM (192MB recommended)
- 50MB of hard disk space

- Zend Guard 5.5 with PHP 5.X requires Zend Optimizer 3.3.x and above

- PHP Compatibility - Supported PHP versions are 5.x and above

Support and Feedback:
 * Support for Zend Guard 5.5 and evaluation support is provided via 
   the Zend forums at http://forums.zend.com

Thank you for using Zend Guard
Zend Technologies, Inc.