Developer credits
Git commits in Moodle 3.6.7 by Martin Gauk
commit 580d8124c083f93589837e62cb5359d288822a0c Author: Martin Gauk <gauk@math.tu-berlin.de> Date: Tue, 15 Oct 2019 21:55:06 +0800 Tag: v3.6.7 MDL-66915 assign: Notify only if grade was updated in past 24 hours