All fixes sent by Sven Laurel have been reported in Scheduler code, and checked for compatibility on a MySQL instance.
Module is compatible with 1.9, fixing old fashion group calls of temporary 1.8 groups API.
Distribution and support center : as usual :
http://www.ethnoinformatique.fr/course/view.php?id=122&lang=en_utf8
(A question : where did this set of functions groups_get_group_names... go ? We noticed that the group API had reduced from 1.8 to 1.9...)