Why crypto is watching Ethereum's 'Shanghai' upgrade

Since it was introduced by crypto entrepreneur Vitalik Buterin in 2014, it's become a popular platform for developing apps used for everything from trading to gaming. Transactions on Ethereum and many other crypto platforms known as blockchains are publicly viewable and are built on open source software, so developers can jump in and try to make improvements. Ether's value tumbled during the "crypto winter" of 2022 that saw investors pull back from many digital assets. But the appeal of Ethereum's underlying technology has endured. 2. What is the Shanghai upgrade? Until September 2022, Ethereum relied on a costly, energy-intensive process…