Change record status: 
Project: 
Introduced in branch: 
8.3.x
Introduced in version: 
8.3.0
Description: 

The methods \Drupal\Core\Database\Connection::rollback() and \Drupal\Core\Database\Transaction::rollback() are renamed to \Drupal\Core\Database\Connection::rollBack() and \Drupal\Core\Database\Transaction::rollBack(). Notice the capital B. In the DBTNG we are following the naming convention of PHP Data Objects (PDO). This is only a cosmetic change because PHP is case insensitive. So this is not an API change. All existing code does not need to change anything.

Impacts: 
Module developers