The COMIT network atomic swaps have been abandoned by the team who made them (lots of dubious things behind that, apparently...) but the work on the more complete and well thought out atomic swap protocol, Farcaster, continues:

They are actually leveraging a lot of similar modularity to some of how Lightning is built, hopefully we will get a community update from them soon with the status in more layman's terms, but I know multiple people behind it and they're making solid progress.