PANews reported on May 12 that zkSync Developers posted on the X platform that the zkSync Era Sepolia testnet is expected to be fully restored in the next few hours. The v24 mainnet upgrade will be postponed until later next week to give the team more time to evaluate the stability of the testnet. When the team is confident that it is stable, a firm release date will be provided.
According to zkSync Developers, there were two issues affecting the testnet (these issues have now been resolved): First, due to instability issues with the eth_sender service (responsible for submitting transactions to the L1 zkSync smart contract), no L1 commit blocks were submitted for about 1 day. This was caused by a very different gas market for Blob pricing on Sepolia. Second, no proofs were submitted for more than 2 days, causing withdrawal delays. This was caused by a logical difference between the in-circuit VM (the ZK circuit used to generate proofs) and the out-of-circuit VM (the VM on the server side, which is executed immediately when a transaction is submitted).
Yesterday, zkSync Developers posted on the X platform that the team is investigating an ongoing issue on the zkSync Sepolia testnet. While the investigation continues, it is not possible to withdraw Sepolia funds from the zkSync Era Sepolia testnet. This investigation (and its results) may affect the mainnet v24 version scheduled to be released next Monday. At around 3 am yesterday, zkSync Developers released relevant progress, saying that the investigation is still ongoing and will continue until the next day, when more updates will be released.
