Major upgrades to the Ethereum network could help the cryptocurrency soar even higher. Here's a roadmap to the changes.

Major changes are coming to the Ethereum network.
Alessandro Bianchi/Reuters
Ether has soared to record highs, in part because of growing interest in the Ethereum network.
But major changes are coming to the blockchain, which some investors say could send ether higher.
Developers are overhauling how fees work and plan to make it much more environmentally friendly.
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Ether - the world's second-biggest cryptocurrency - soared