PHP Manual
Appendices
Migrating from PHP 5.4.x to PHP 5.5.x
What has changed in PHP 5.5.x
Backward Incompatible Changes
New features
Deprecated features in PHP 5.5.x
Changed Functions
New Functions
New Classes and Interfaces
New Methods
Other changes to extensions
New Global Constants
Changes to INI file handling
Changes to PHP Internals
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