Ethereum's Glamsterdam upgrade has been live on the Sepolia test network since Tuesday afternoon. The fork started at 13:53:36 UTC, exactly at the time the developers had announced three weeks earlier. Anyone holding Ethereum gets a rare opportunity from this: the network that is also meant to carry the mainnet in a few weeks or months is running out in the open right now and can be measured.
That is precisely what we did, and the result departs from the headline. One number stood at the centre of the reports of recent days: a gas limit of 200 million, more than three times the previous 60 million. On Sepolia the gas limit stood at 64,238,034 on Tuesday afternoon, a good hour after the fork. That is no contradiction of the announcement, but it is not the same thing either, and the difference explains why a mainnet date is still missing.
Glamsterdam on Sepolia: the fork ran at 13:53:36 UTC in block 11,856,337
The Ethereum Foundation had set the fork on September 17 for epoch 353,024 and slot 11,296,768, which converts to October 6, 2026 at 13:53:36 UTC. That slot has indeed become the first block of the new rules; on the execut...
English (US)