Documentation for JIRA 5.2. Documentation for other versions of JIRA is available too.

To change the default order from Ascending to Descending so that the latest comments are shown first, follow these steps:

  1. Access JIRA's 'Advanced Settings' page. (See Configuring Advanced Settings for more information.)
  2. Edit the value of the jira.issue.actions.order property by clicking the existing value and changing it from asc to desc
  3. Click the 'Update' button to save the new value in the JIRA database.