Habitat Level is now properly capped at 100. This was always the intended maximum, with rewards ending at Level 100, but progression was incorrectly continuing beyond this point and granting additional Dino and Scenery Slots.
If you have already received more than the intended maximum of 40 Dino Slots or 50 Scenery Slots, none of your existing dinos or scenery will be removed. You may instead see that your habitat is now over capacity.
While over capacity, you won't be able to add any more dinos or scenery to that habitat. If you move existing dinos or scenery out, your total will gradually return to the correct capacity limit.