Giraffe sign

Is this sign fairly new? It's a big change from the old style of sign (those greeny/teal ones like at the condor cliff.) Have they all changed?

Chris, they seem to be phasing the new signs in. The green ones are still there (Chimpanzee, Condor, Europe on the Edge, Giraffe House, Capuchins) but more and more new ones are being placed (of different styles as well).

I think this sign was put in place at the start of the summer...