BitGo Introduced Replace-By-Fee Support for Hot, Custodial & Self-Managed Wallets

"Announcing support for Replace-By-Fee (RBF) for Bitcoin. RBF support allows clients to replace transactions stuck in the mempool and gives users greater control over their transactions. Available for all BitGo Bitcoin wallets."

https://www.nobsbitcoin.com/bitgo-introduced-rbf/