Ethereum is probably the most important commercial highway in the crypto landscape, and it has now been “merged” — a process that replaced older, power-sapping network computers with more modern and energy-efficient machines. The upgrade will see Ethereum’s energy expenditure decline by a massive 99%.

This kind of upgrade has never been attempted in crypto until now, which is no surprise, as Ethereum is home to 3,500 apps and handles billions of dollars of crypto transactions. End-users shouldn’t notice the merge, but it will eventually make the network faster and cheaper to run.

Although now completed, Ethereum’s merge could see the network suffering from occasional glitches or hang-ups for at least several weeks. Exchanges like Coinbase paused Ethereum withdrawals and deposits during the event in anticipation of hacking attempts and general instability.

There is some concern that EthereumPOW and other forks may create copies that still run on the older computers, potentially creating confusion and leading to more scams and hacking attempts. USDC stablecoin issuer Circle and oracle provider Chainlink have both announced that they won’t support forked versions of Ethereum, and whether those forked chains remain viable over time is something that isn’t yet known.

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So how will the merge affect crypto mining? Only time will tell, but as profitability has already taken a nosedive this year, the merge will further squeeze those who make a living from crypto mining. Energy costs are rising globally, and now miners are faced with the prospect of changing to new equipment or selling up for good.

So what does the future hold for Ethereum in the wake of these massive changes? So far, the jury is out, but some traders anticipate the network overtaking Bitcoin in the long run and are hedging vast sums of money on their prediction.