Ethereum was initially released in July 2015. In the years since, the Ethereum blockchain has gone through many upgrades, but none as important as its upcoming 2.0 release—also known as the Serenity Upgrade. Why does the Ethereum 2.0 release matter?Ethereum 2.0 will include the biggest change to the network’s consensus mechanism—it will migrate from its current proof of work (PoW) consensus mechanism to proof of stake (PoS). This change will improve many aspects of the network including: Sust...