Ethereum developer: There is a problem with the Shapella withdrawal test, but it will not affect the Shapella upgrade time

Ethereum core developer Tim Beiko tweeted, "Developer MariusVanDerWijden found a public testnet Shapella bug that appeared during full syncs of empty blocks (no transactions or withdrawals), and several other clients also encountered this Issue, however, this issue is easy to test and can be patched quickly. The team does not believe this will affect the timeline for the Sepolia upgrade, which is still scheduled for February 28th at 12:00 pm.” Also, Barnabas Busa updated with the latest support for Shapella Withdrawal Devnet for stress testing. The Devnet has 600,000 validators, 360,000 of which performed withdrawal credential updates at the time of the fork. Clients are seeing a spike in RAM + CPU usage, and the devops team will be monitoring the dev network over the next few days to see how many credential update messages are being included and lost. The test also revealed the Prysm <> Besu issue, where Besu limits the number of responses it sends over RPC to prevent DoS, but Prysm expects a higher number of responses than Besu's current limit. The Besu team is currently investigating the matter. In addition, the developers are planning another mainnet shadow fork, on which some Mev-Boost tests will be done. On February 10th, the Ethereum Foundation stated that the Shanghai+Capella (Shapella) mainnet upgrade is entering the final pre-release sequence - the public testnet. Shapella includes many features, but most importantly for stakers and the consensus layer is support for withdrawals. Exited validators can withdraw the full amount, while active validators whose balance exceeds 32 ETH can partially withdraw. Separately, Sepolia, the first long-standing public testnet, is scheduled to undergo an upgrade on February 28.