Over 750,000 ETH have been released from pledge after Shanghai's upgrade.
According to Token Unlock data reported by BlockBeats on April 16th, after the Shanghai upgrade of Ethereum, 754,000 ETH have been unlocked from staking and 249,000 ETH have been newly deposited for staking. Additionally, there are currently 1.1 million ETH in a pending withdrawal state and approximately 463,000 validators.