ChainCatcher news, the Kakarot team of the Ethereum Layer 2 network recently announced that its testnet has successfully migrated to the Starknet Sepolia network. Developers need to redeploy smart contracts on the new testnet Kakarot Starknet Sepolia.Kakarot is a verifiable EVM built on a STARK-friendly ZK-VM based on Starkware, developed by KKRT Labs, aimed at accelerating the application of zero-knowledge proof technology in blockchain infrastructures like Ethereum through the "STARKification" of the EVM.

ChainCatcher message, Scroll announced on social media that its Curie network upgrade is now live on the Sepolia network.It is reported that the improvements introduced by Curie include: a 1.5 times reduction in Gas costs due to DA compression, comprehensive support for the Ethereum EIP-1559 fee mechanism, and the Curie network will subsequently upgrade on the Scroll mainnet.

ChainCatcher news, the modular execution layer Fuel announced on social media that it has launched the final testnet on the Sepolia network.

ChainCatcher message, the decentralized stablecoin HOPE launched by former [Babel Finance](https://www.rootdata.com/zh/Projects/detail/Babel Finance?k=NDE5Mg==) co-founder [Flex Yang](https://www.rootdata.com/zh/member/detail/Flex Yang?k=MTMzNTQ=) is now open for public testing. From April 3 to April 10, users can participate in testing on the Sepolia test network, covering modules such as HopeSwap, Staking, liquidity mining, DAO, etc. (source link)

ChainCatcher message, the Ethereum Foundation released a blog stating that the Shapella network upgrade will be activated at block height 56832 on the Sepolia network, approximately at 12:04:48 Beijing time on February 28, 2023. This upgrade follows The Merge and allows validators to withdraw staked Ethereum from the beacon chain to the execution layer, while also introducing new features for both the execution layer and the consensus layer, combining changes to the execution layer (Shanghai), consensus layer (Capella), and engine API. The Zhejiang testnet is available to test Shapella features before the Sepolia upgrade. (source link)