JIRA is now available as three separate applications, JIRA Software, JIRA Service Desk, and JIRA Core. For more information on administering these applications, refer to the Administering JIRA Applications documentation.
JIRA 4.3.4 Upgrade Guide
Upgrading from JIRA 4.3.x to 4.3.4
Please follow the instructions in the general upgrading JIRA documentation.
Upgrading from JIRA 4.2.x and earlier
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