The highly-anticipated Dencun upgrade of Ethereum was successfully deployed on the Sepolia testnet on Jan. 30. This marks the second deployment out of three planned testnet launches, bringing the Ethereum community one step closer to embracing the features of DencUn. The Sepoliatestnet follows the earlier deployment on the Goerli testnet in January. Despite the initial challenges, the upgrade was successfully completed on the goerlitestnet on January 28. The upgrade was initially delayed due to a bug in the Prysm client.
Source: Wayne Jones, 2024-02-01; https://cryptopotato.com/ethereums-dencun-upgrade-is-now-one-step-closer-after-this-deployment/