In the process of improving XSH, we have decided to change the mining difficulty adjustment algorithm from DGWv3 (Dark Gravity Wave v3) to LWMA (Linear Weighted Moving Average). There have been bad actors on the chain which exploited DGWv3 by mining blocks with waves of high hashpower, which netted them more block rewards for less effort, decreased profitability for honest miners, and made confirmation times less reliable. We are switching from DGWv3 to LWMA to increase the chain's stability; this change has a "side benefit" of dramatically increasing mining profitability across all honest pools!