Kohana 3.3 MySQLi driver
A simple substitution for the original MySQL driver. Just add as a module and set database driver to 'MySQLi'. Supports same functionality as the original driver.
http://tomlankhorst.nl/mysqli-database-driver-for-kohana-3-3/
Composer
"require": {
"tomlankhorst/kohana-3.3-mysqli": "dev-master",
}