1. What is the new upgrade all about? The new upgrade is known as Kathmandu, continuing Tezos’ tradition of naming its protocol versions after ancient cities. This is actually a tradition that started from the protocol version 004, and so far, Tezos has had protocols named Athens, Babylon, Carthage, Delphi, Edo, Florence, Granada, Hangzhou, Ithaca, and Jakarta. Kathmandu is the latest one in line, but far from being the last one, thanks to the evolving nature of the in-use protocols.