None this year and according to their customer relations team it has "never been formally introduced".
Dear skywalkerLAX,
Thank you for contacting Marriott Bonvoy and for your loyalty with us.
The Birthday Elite Night Credit benefit had not been formally launched as part of Marriott Bonvoy and has been paused. We are reevaluating the best way to recognize member birthdays.
If there is anything else you may need do not hesitate to contact us again.
I wish you a wonderful remainder of your day and great future travels with us.
Regards,
Margaret K.
Marriott Bonvoy Customer Service Center
In other words: A middle finger from Arne to all of us.