2 algorithm_AllTroops in 5.5.1

In attack algorithm folder there is 2 algorithm_AllTroops

algorithm_AllTroops-original
algorithm_AllTroops

Question:

1. What is the purpose of 2 algorithm_AllTroops?

2. What bot use in attacking? algorithm_AllTroops-original or algorithm_AllTroops

3. There is a difference between algorithm_AllTroops and algorithm_AllTroops in attacking?

algorithm_AllTroops-original is not in use. That was previous file found in 5.5.