The 2021 reopening of the Chimpanzee exhibit added a large netted exhibit and a new indoor area, but the existing outdoor yard that had been there for decades remained the same size. It was "modernized" via new climbing structures and what I would call a more manicured look.
Here is an old photo of mine of what the chimp exhibit used to look like:
There is one large indoor area that can be seen by the public (while visitors are standing outside under a sheltered zone) and here are two photos of it:
