Ethereum recently completed its much-anticipated migration from the energy-intensive proof-of-work (PoW) consensus mechanism to proof-of-stake (PoS) on September 15, a phase referred to as the Merge.

Following the Merge, In a tweet, Ethereum co-founder Vitalik Buterin has released an update to the Ethereum roadmap, announcing changes aimed at mitigating censorship, block verification, centralization, and other issues.
The goal of the second phase is to get 100,000 transactions per second through rollups. As per the previous roadmap, there were a total of five stages, with the rest being the Verge, Purge, and Splurge.

However, the now expanded six-part technical roadmap also includes the Scourge as the new third stage, which will then be followed by the previously-known stages — the Verge, the Purge, and the Splurge.

According to the Ethereum roadmap, the goal of the Scourge is to “ensure reliable and credibly neutral transaction inclusion and to avoid centralization” among other improvements.

The Ethereum creator said the changes reflect "more concrete milestones in every category" and a more explicit role for quantum-proofness as a necessary component of the "endgame" protocol.

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