Ethereum ETH 0.26% core developer Tim Beiko released the Ropsten merger announcement, saying that a new beacon chain has been launched today, and it is expected that The Merge will be carried out on the Ropsten network around June 8, thereby converting to PoS consensus.
There are currently two things that need to be done on Ropsten, first its beacon chain must activate the Bellatrix upgrade scheduled for June 2, and then a total PoW difficulty value, the Total Terminal Difficulty (TTD), will be selected to trigger the consensus switch.
TTD should be chosen by June 2 or 3 to avoid miners disrupting the transition again, and will be announced on ethereum.org, we will choose a value we expect to hit around June 8.