Ethereum’s testnet activation of the Istanbul hard fork has been pushed back to early October, according to the community manager of the Ethereum Foundation, Hudson Jameson.

According to CoinDesk on Sept. 6, Jameson said on a developers’ call that the testnet launch of the hard fork is now scheduled to take place in the beginning of October. He added:

“For anyone listening in who doesn’t know how this works, we pick a block number that we estimate to be around the 2nd of October. [...] However, that might be one or two days behind or forward from that date based on how fast blocks are produced between now and then.”

Another delay for Ethereum’s Istanbul hard fork

Cointelegraph previously reported on Aug. 28 that Parity, a blockchain infrastructure company that runs the core of the Ethereum network, had already delayed the planned hard fork until Sept. 6. Parity core developer Wei Tang said at the time that the organization needed at least two more weeks before devs could proceed in selecting a block number for the Istanbul fork. Tang said at the time:

“We need time till 6th September to finish the implementation. Not only because we accepted EIPs late but right now we just happened to be a large code base refactoring and we probably want to merge them first before merging Istanbul EIP.”

The Ethereum blockchain is slowly filling up

As Cointelegraph previously reported, Ethereum co-founder Vitalik Buterin said that the Ethereum blockchain is nearly full, which seems to deter new adoption by potential Ethereum contributors. Buterin added: