Compatible Redmine version is 3.1.3 (since subrelease 2014.06.05.1002). More about subreleases here.
Except many minor patches and optimizations included, here are some new features.
Help Desk Automatic Ticket Updater
The existing feature Automatic ticket closer has been extended to ticket updater, because you can also choose open statuses and new assignee now. It is also possible to set multiple rules for automatic ticket updating. Just click on + Add
This feature can be configured in project settings >> helpdesk
CRM Case Relation to Task from Different Projects
It is now possible to relate CRM cases to tasks from other projects. This will help you better connect the business and realization sides of a contract.
Milestone in Spent Time Listing
New column in spent time list showing milestone of the task, where time was logged.
Exporting Tasks to PDF with Description
Export of task list to PDF with description enabled will show the description under each task instead of as a new column as previously.
Attendance Reports Expanded
Added result in absolute form.
Global Settings Moved to Project Settings
The checkbox highlighted in the screenshot below (Administration >> Settings >> Task tracking) has been made a project setting, so you can enable/disable it only on projects where needed.
The setting is kept on the global level as well, but every change on this setting will affect all projects.
And new settings...