BIP-119 is an improvement proposal introduced by Rubin in 2022. It advocates for the introduction of a new opcode called CheckTemplateVerify (CTV) to enable the implementation of on-chain covenants in the Bitcoin network. It is expected that this proposal will facilitate the construction of more advanced applications by providing a modular system that can be combined with other tools.
Considering the Appropriateness of Bitcoin Improvement Proposals through Inscriptions and BIP-119