Ethereum’s oldest Proof of Work testnet has successfully upgraded to full Proof of Stake with the network now running the new validators consensus mechanism.
That means Ropsten no longer has miners, but only 101,000 validators that have put down 3 million eth to secure the testnet.
“Now blocks are being built by Proof of Stake validators,” Danny Ryan, the eth2.0 coordinator, said following the merge.
This is the first merge of a long running testnet, with it seemingly going smoothly so far.
Another two testnets are to be upgraded before the live merge expected sometime in September or October.
At which point ethereum will no longer have miners, or a hashrate, but only stakers which will receive about 10x less in block rewards than current miners, reducing inflation with eth set to become a lot rarer.
All seems to be going smoothly so far. One crucial measure is nodes are talking to each other and agree.
All are in sync at this point, so there’s no hiccup, there’s no problem, no rogue blocks which is a good omen for a successful live merge.
However all is far too early to tell with it to be seen whether any problems show up.
Update: Some blocks seem to be missing, the epoch should still be justified but devs will be investigating.
“We are justifying and finalizing, we are proposing. Everything is working, but we do look for higher proposal rates than we’re seeing right now,” Patricio Worthalter, an eth dev, said. “It worked, but we’re still wondering where all these proposals are going.”
A merge block has been finalized with the merge overall successful but 12% of the proposals are missing. Since the aim of the testnet upgrades is to improve even further, they will now patch any problems.
If this was a live launch therefore, the network would be running and all would be fine from an end-user perspective, but some things can be improved and that probably will always be the case.