This maintenance version ofTempo Planner 4.0 includes a hot fix where users can not add a description when creating JIRA issue from any Planner page. This is affecting users with JIRA 7.3 with Rich text editor enabled on the instance.
Tempo Planner 4.0.x Compatibility
This release of Tempo Planner is compatible with JIRA 6.4.12+. This compatibility is a change from previous releases which were compatible with JIRA 6.2+. The reason for the jump to 6.4.12 instead of to 6.4.0 is a JIRA Agile plugin point bug that was fixed in 6.4.12.