New Classes and Interfaces
Other changes to extensions
Migrating from PHP 5.4.x to PHP 5.5.x
PHP Manual

## New Methods

### MySQLi

- mysqli::begin_transaction()
- mysqli::release_savepoint()
- mysqli::savepoint()

### Intl

- IntlDateFormatter::formatObject()
- IntlDateFormatter::getCalendarObject()
- IntlDateFormatter::getTimeZone()
- IntlDateFormatter::setTimeZone()

New Classes and Interfaces
Other changes to extensions
Migrating from PHP 5.4.x to PHP 5.5.x
PHP Manual