Going from a post mentioned in another thread, they used to do this but due to the large quantity of packs they can’t handle this on their end anymore and still keep up with their other duties. For packs that focus on environments, textures and the like we need to convert them to 4.9 and then email the marketplace support team to notify them that everything checks out. They will then apparently toggle the switch that marks it as compatible. If there is an issue, then you will need to fix it and send them the updated files. =)