Of all the coin selection strategies implemented by Bitcoin Core, KnapsackSolver seems like the least useful. I can’t think of any reason to not prefer using BnB and falling back to SRD if BnB fails to find a solution. Is it maintained for historic purposes? I notice it seems to descend from the first SelectCoins function in the initial release as tracked by git. Are there plans to improve it or deprecate KnapsackSolver in the future?












