This plugin is an implementation of GeSHi (Generic Syntax Highlighter - http://qbnz.com/highlighter/) for MyBB. No changes have been made to GeSHi, so you can easily change the version.

Usage
Use the MyCode [geshi=lang]your code here[/geshi] to have your code highlighted. If the language is not supported, a list of supported languages will be displayed.

Installation / Upgrade
Upload the content of the UPLOAD directory to your forum root and activate the plugin.

Settings
Actually, only one setting exists: the display of line numbers (default off).