This version of Admin Tools fixes minor issues with Joomla! 2.5. Please remember that Admin Tools 3.4.x is the last release branch to support Joomla! 2.5. The next version branch of Admin Tools (3.5.x) will only support Joomla! 3.2 and later.
Changelog
Bug fixes
[MEDIUM] Custom administrator directory: some servers misbehave when asked to access /administrator instead of /administrator/index.php
[MEDIUM] Two Factor Authentication was not working