zkSync: Mainnet v24 upgrade postponed, zkSync Sepolia testnet is expected to be fully restored within a few hours

PANews reported on May 12 that zkSync Developers issued a document on the X platform that the zkSync Era Sepolia test network is expected to be fully restored in the next few hours. The v24 mainnet upgrade will be postponed until late next week to provide the team with more time to evaluate the stability of the testnet. An exact release date will be provided when the team is confident it's stable.

zkSync Developers stated that 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 approximately 1 day. This is caused by the very different gas market for blob pricing on Sepolia. Secondly, the proof was not submitted for more than two days, resulting in a delay in withdrawals. This is due to the logic difference between the in-circuit VM (the ZK circuit used to generate the proof) and the out-of-circuit VM (the server-side VM that executes immediately when a transaction is submitted).

Yesterday's news, zkSync Developers issued a document on the X platform, and the team is investigating an ongoing issue with the zkSync Sepolia test network. Withdrawals of Sepolia funds from the zkSync Era Sepolia testnet are unavailable while the investigation continues. This investigation (and its results) may impact the mainnet v24 release planned for next Monday. At around 3 a.m. yesterday, zkSync Developers announced relevant progress, saying that the investigation is still ongoing and will continue until the next day, when more updates will be released.