Zcash core developer Josh Swihart has blocked discussions on a major ZEC staking upgrade, the Crosslink project, which was backed by Vitalik Buterin and the Winklevoss twins. Swihart, a Zcash ecosystem veteran and founder of Zcash Open Development Lab, stated that the proposed staking layer would overload the protocol and create new critical vulnerabilities, arguing that Zcash should remain on classic Nakamoto consensus. This move has led to a split within the Zcash community, effectively depriving the large-scale staking upgrade of any chance of adoption and potentially leading to an ecosystem split.