Ethereum Foundation member Nixo Rokish said the previously considered April 30 date was discarded because it would not provide builders with the full 30-day notice they requested

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April 30th wasn’t confirmed and I personally also advocated today for May 7th over April 30th because builders building on top of Ethereum had asked for a 30 days heads-up from a confirmed date to fork and confirming April 30th today would have been a 27 day heads up.

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