# ETH devs implement first-ever ‘shadow fork’ as PoS testing continues
” ETH devs implement first-ever ‘shadow fork’ as PoS testing continues “ Ethereum developers implemented the network’s first-ever “shadow fork” on Monday, marking an important milestone in the ongoing shift to a proof-of-stake (PoS) consensus. The shadow fork provides a venue for developers to stress test their assumptions around the network’s complex shift to PoS,…