Does, or will, Bitcoin Core support Lightning?
A sketch of Lightning Network support was previously proposed to Bitcoin Core.
Conceptually, most contributors think it is outside of the scope of the Bitcoin Core project which should be limited to be a robust backbone for the Bitcoin network.
Lightning Network implementations &quot;on top&quot; of Bitcoin Core already exist, the three most mature ones being C-lightning, LND and Eclair.
Given the complexity of the Lightning Network, specialized softwares are in my opinion required.