all the Ape enclosures have more climbing equipment than previously. That's the main change although several Gorillas have died in the last few years(Sekondi, Mamfe, Samsam, Yinka, Eva, and Ozala's 2nd baby N'doki) so there are only five left at present.
I forgot poor old Joe... Matadi is a happy healthy juvenile aged about five. He is valuable genetically for breeding being Sekondi's only offspring. I have a feeling Twycross may want to start another group with him in the future rather than let him go elsewhere (I would prefer the latter option)
