For those interested...

Four Limited Edition, Numbered Releases
Highly Collectible Bonus Disc
Free Domestic Shipping
Delivered Throughout The Year
Early Bird Pricing - $99.98

A minimum savings of $39.00 over purchasing a la carte.

and a snip from the announcement:

After a year of tremendous variety with 2023's four offerings from 1977 (two complete shows!), 1972 (Keith and Donna!), 1979 (Brent!), and 1971 (Keith, with Pigpen on hiatus!), we are already planning a wild ride in 2024, starting with a 4-CD mega set featuring TWO complete shows from April 27 and 28, 1985, at the Frost. And Vol. 50? An upper-tier Dead show that's been on our release list for many years. The time is perfect for this show (shows...?) to be the one celebrating big number 50.

if interested wander over to dead.net for more info etc.