first of all, thanks a lot for the very positive feedback on the new Light Groups panel, it really helps :)
Good news, support is back since Monday and new builds are now available! You can download fresh versions of E-Cycles 2.83.3 for Windows and Linux, Mac will follow asap. New builds of E-Cycles 2.90 beta are also available with all the latest improvements of upstream included.
Next weeks will concentrate on polishing the 2.90 release, your feedback is as always welcome. For pure polishing suggestions, blenderartists.org is the best place to ensure everyone can participate and have ideas be discussed.