Where can one find updates on Casper POS? I hear its been constantly delayed. When is it expected to arrive? And is there an alpha/beta state where one can test it out now?
The latest information has come from a Techchrunch panel that included Vitalik Buterin and Ethereum researcher Justin Drake (among others). This panel, which took place in July 2018, discussed the future of Ethereum, including Casper POS and sharding.
From the panel, Drake said, "My expectation is that Casper will come first — possible next year, 2019”.
Drake continued with “Then in sharding we’ve actually broken it down into two big phases. Phase one is actually the data layer, so coming to consensus as to what data is in the shards. Phase two is all about the state, giving meaning to that data and the notion of transaction.”
Drake believes sharding phases one and two will come in 2020 and 2021, respectively