This is the list of the fixes and improvements since the previous release, if you are interested, more details can be found at the repository (https://github.com/ElkArte/ElkArte).
You can find the list of known issues at this address (http://www.ElkArte.net/community/index.php?topic=1957.msg22201#msg22201).
- [bugfix] Workaround session errors in PHP 7 (ref (https://github.com/elkarte/Elkarte/commit/698b42a)).
- [bugfix] Properly fix the undefined index in ScheduledTasks.subs.php - fixes #2644 (ref (https://github.com/elkarte/Elkarte/commit/358a7ff)).
- [bugfix] Increse safe_unserialize limits to cope with our own problems (ref (https://github.com/elkarte/Elkarte/commit/c3ddc5c)).