# CiviCRM 5.5.1
-Released 11 Sep 2018
+Released September 12, 2018
- **[Synopsis](#synopsis)**
- **[Bugs resolved](#bugs)**
## <a name="bugs"></a>Bugs resolved
- **([dev/core#390](https://lab.civicrm.org/dev/core/issues/390))
- Fix regression affecting smart-groups which predate 5.5.0 ([12803](https://github.com/civicrm/civicrm-core/pull/12803))**
+ 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; Lemniscus - Noah Miller; Wikimedia
-Foundation - Eileen McNaughton
+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
+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`.