# CiviCRM 6.6.2

Released September 16, 2025

- **[Synopsis](#synopsis)**
- **[Bugs resolved](#bugs)**
- **[Credits](#credits)**
- **[Feedback](#feedback)**

## <a name="synopsis"></a>Synopsis

| *Does this version...?*                                         |          |
| --------------------------------------------------------------- | -------- |
| Change the database schema?                                     | no       |
| Alter the API?                                                  | no       |
| Require attention to configuration options?                     | no       |
| **Fix problems installing or upgrading to a previous version?** | **yes**  |
| Introduce features?                                             | no       |
| **Fix bugs?**                                                   | **yes**  |
| Fix security vulnerabilities?                                   | no       |

## <a name="bugs"></a>Bugs resolved

* **_Standalone_: New installations encounter "SessionHandler" error ([#33590](https://github.com/civicrm/civicrm-core/pull/33590))**
* **_Smarty_: Update version-check. Revise transition deadline. ([#33581](https://github.com/civicrm/civicrm-core/pull/33581))**

## <a name="credits"></a>Credits

This release was developed by the following authors and reviewers:

Progressive Technology Project - Jamie McClelland; CiviCRM - Coleman Watts, Tim Otten;
Benjamin W

## <a name="feedback"></a>Feedback

These release notes are edited by Tim Otten and Andie Hunt.  If you'd like to
provide feedback on them, please login to https://chat.civicrm.org/civicrm and
contact `@agh1`.