This is a small maintenance release to fix a few issues reported in 4.1.10. In addition to bug fixes and performance improvements, it includes following new/changed features: Integration with SparkPost replaces Mandrill for optional email service as Mandrill is stopping their current service toward the end of April. Questions in Question and Answer forums can now be sorted by most votes. The "All Activity" activity stream now has an RSS feed. The filter bar at the top