Stacks (STX) — the largest Bitcoin layer-2 network in terms of market capitalization, one of the oldest and most dedicated Bitcoin (BTC) projects and home to a thriving ecosystem — is undergoing the biggest upgrade in its history. It will change how many perceive Bitcoin. On Aug. 28, the network’s Nakamoto Upgrade will activate. It will cause several fundamental changes, among them: Transaction speeds on the network will see a major boost, with settlement times dropping from 10 to 30 minutes or more — which mirror Bitcoin’s timing — to around five seconds. This represents a 100x improvement an…