# CiviCRM 5.5.1

Released September 12, 2018

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

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

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

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

- **([dev/core#390](https://lab.civicrm.org/dev/core/issues/390))
  Smart groups created before 5.5.0 using "relation_permission" break on upgrade
  to 5.5.0 ([12803](https://github.com/civicrm/civicrm-core/pull/12803))**

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

This release was developed by the following authors:

Australian Greens - Seamus Lee; CiviCRM - Tim Otten; Lemniscus - Noah Miller;
Wikimedia Foundation - Eileen McNaughton

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

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