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Home » Ethereum’s Constantinople Upgrade Successfully Activates at Block 7,280,000
Crypto

Ethereum’s Constantinople Upgrade Successfully Activates at Block 7,280,000

Karly MarieBy Karly MarieMarch 2, 2019Updated:March 9, 2025No Comments3 Mins Read
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Ethereum, the world’s second-largest blockchain, has officially entered a new phase of development with the successful implementation of its long-anticipated Constantinople upgrade. The network-wide hard fork occurred at block 7,280,000, precisely at 7:52 PM UTC on March 1, 2019, marking a pivotal moment in Ethereum’s evolution.

A Hard Fork Like No Other: The Countdown to Constantinople

The Ethereum community watched in anticipation as the network approached the block height required for the hard fork. Instead of celebrating with champagne, developers, miners, and blockchain enthusiasts tracked the event with block countdowns, exchanging updates across Twitter and developer forums like Gitter.

This milestone wasn’t just another software update—it was Ethereum’s first major mainnet hard fork in nearly two years and a significant step toward transitioning from Proof of Work (PoW) to Proof of Stake (PoS).

A Long Road to Activation

The road to Constantinople had been anything but smooth. This was Ethereum’s third attempt to implement the upgrade, following previous delays due to security vulnerabilities found in the code.

“My reaction is relief—actually more than I expected,” said Ethereum core developer Lane Rettig, who played a key role in coordinating the upgrade. He described the atmosphere as one of exhaustion and relief, as developers worked tirelessly to ensure miners and node operators were prepared.

Despite the challenges, the upgrade proceeded smoothly. “I think people were just relieved to see this one go through,” Rettig added.

What Does the Constantinople Upgrade Bring?

The hard fork introduced four Ethereum Improvement Proposals (EIPs) designed to enhance efficiency, scalability, and security. These include:

  • EIP-1234: Adjusting mining rewards and delaying the “difficulty bomb” to prevent the network from freezing before PoS is fully implemented.
  • EIP-1052: Optimizing smart contract verification for better performance.
  • EIP-1283 & EIP-1014: Reducing gas costs and improving Ethereum’s off-chain scaling potential.

These improvements pave the way for Ethereum’s long-term shift to Proof of Stake, a more energy-efficient and scalable consensus mechanism.

Community Reactions and the Future of Ethereum

While developers will closely monitor the network in the coming weeks, the wider blockchain community is already looking forward to the possibilities unlocked by Constantinople. Ethereum’s enhanced efficiency is expected to boost decentralized applications (dApps) and smart contract adoption, making the platform even more attractive for developers.

And in a lighter moment following the upgrade—Ethereum’s new mainnet welcomed its first CryptoKitty, symbolizing a fresh beginning for the network.

With Constantinople now in place, Ethereum is one step closer to Ethereum 2.0—a future where the blockchain is more scalable, secure, and sustainable than ever before.

Blockchain Constantinople Crypto Ethereum Ethereum Upgrade Hard Fork
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Previous ArticleBitcoin Turns 10 Amidst a Decade of Disruption, Controversy, and Resilience
Next Article Ethereum 2.0: The Road Ahead—What’s Happening with the Next Big Upgrade?
Karly Marie
Karly Marie

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