This KB refers only to common issues regarding the upgrade from JIRA version 4.2.x and lower to 4.3.x or higher.
As of 4.3 of JIRA is bundled with Embedded Crowd, which was previously only available through our Crowd application. This allows a full LDAP integration, making it possible to manage users and groups directly in LDAP. However, several issues can appear when upgrading from older versions. and this guide is to help troubleshooting these issues.
Please see our Troubleshooting LDAP User Management documentation for further assistance with diagnosing LDAP problems.