According to developer Justin Drake from Ethereum Foundation, the launch of Ethereum 2.0 may be delayed until the beginning of 2021. He said this during the session AMA (Ask Me Anything) on Reddit on Friday, July 10.
According to Drake, before the launch of the Genesis block of the Ethereum 2.0, you have to have a “public test network with 3+ customers who have worked without a hitch for 2-3 months” and “bug-bounty program, similar to bounty.ethereum.org that works for 2-3 months” (among other points).
“All of the above can not take place in the third quarter of 2020… I would say that the last possible date for the launch in 2020 is the middle of November, 4 months. I am inclined to think that the earliest realistic date of launch could be January 3, 2021 (12 years of bitcoin)” wrote Drake.
In a message to Drake, the Creator of Ethereum, Vitalik Buterin said: “I personally couldn’t disagree more and would prefer to run zero phase before that date, regardless of the level of preparedness 😀 [sic]. The Ethereum 1.0 took 4 months from the first multi-client test network to start; I would say that the four-month countdown began in July, with the launch of testnet Altona. Zero phase is in some sense simpler than Ethereum 1.0, and in some cases more complex: the more complex the PoS, but not such complex PoW (oriented towards GPU), requires more optimization, but not so complex VM, etc. in addition, eth2 won’t be any critical applications to the first phase, so the practical risks of failure are lower (although it can be argued that the ecosystem as a whole more). So I see no reason to spend more time on the launch of Ethereum 2.0, than we spent on the launch of Ethereum 1.0”.
Project Manager Danny Ryan in may noted that having multiple customers is a key element of network security. “If one customer has a critical error and it crashes, the network can continue to work, because most of the gcd will not work on this client. Multi-client paradigm introduces additional complexity. If we had one client, perhaps we would have launched the main network,” he said then.