BIP 65 (CheckLockTimeVerify) Activated
The CheckLockTimeVerify opcode is activated, improving Bitcoin smart contract capabilities.
On June 10, 2015, BIP 65 (CheckLockTimeVerify) was activated on the Bitcoin network. CLTV expanded Bitcoin’s scripting capabilities by enabling time-locked transactions, an essential building block for payment channels, trustless escrow, and other advanced contracts.The upgrade represented an incremental but powerful step toward Bitcoin programmability and security.