JIRA 5.1.8 Upgrade Notes
Upgrading from JIRA 5.1.x to 5.1.8
Please follow the instructions in the general upgrading JIRA documentation.
Please also read the Important Version-Specific Upgrade Notes for any JIRA 5.0.x versions you are skipping.
Incompatibility with some Greenhopper versions
JIRA 5.1.8 does not work with GreenHopper 6.0.4 and earlier. To use JIRA 5.1.8 with GreenHopper, download GreenHopper 6.0.5 or later.