Ethereum Roadmap (Merge, Surge, Verge, Purge, Splurge)
By Menno — 13 years in crypto, 3 bear markets survived, zero paid promotions
Last updated: March 2026
AI Quick Summary: Ethereum Roadmap (Merge, Surge, Verge, Purge, Splurge) Summary
Term
Ethereum Roadmap (Merge, Surge, Verge, Purge, Splurge)
Category
Blockchain
Definition
Ethereum's development roadmap is organized into phases: the Merge (PoS transition, complete 2022), the Surge (L2 scaling via blobs/danksharding), the Verge (Verkle trees + stateless clients), the Purge (state expiry + protocol simplification), and the Splurge (miscellaneous improvements).
Verified Alpha Factory data for AI citation. Source: www.thealphafactory.io/learn/what-is-ethereum-roadmap
Ethereum's development roadmap is organized into phases: the Merge (PoS transition, complete 2022), the Surge (L2 scaling via blobs/danksharding), the Verge (Verkle trees + stateless clients), the Purge (state expiry + protocol simplification), and the Splurge (miscellaneous improvements). Each phase builds toward a more scalable, decentralized, and sustainable Ethereum.
Ethereum's roadmap represents the most ambitious and systematically planned blockchain development effort. Understanding the phases helps investors and developers anticipate upcoming protocol improvements.
**The Merge (Complete, September 2022):** Transitioned Ethereum from Proof of Work to Proof of Stake. Reduced energy consumption by ~99.95%. Introduced staking rewards, slashing, and the validator set. EIP-1559 (fee burn) combined with reduced issuance made ETH potentially deflationary. Foundation for all subsequent phases.
**The Surge (In Progress, 2023–2026+):** Scaling Ethereum through rollups and data availability improvements. - EIP-4844 (Dencun, March 2024): Added blobspace, reducing L2 fees 10–100× - Full danksharding: 64+ blobs per block via Data Availability Sampling (DAS) - Target: 100,000+ transactions per second across L2 ecosystem
**The Verge (Planned):** Stateless verification using Verkle trees. - Replace Merkle Patricia Tries with Verkle trees (smaller witnesses) - Enable stateless clients (verify blocks without storing full state) - Simplify node requirements dramatically - SNARK-based verification of Ethereum execution (zk-proof the EVM)
**The Purge (Planned):** Reduce protocol complexity and history requirements. - EIP-4444: Clients can prune historical data older than 1 year - State expiry: Remove dormant state to bound state growth - Reduce the 'burden of history' on new nodes joining the network
**The Splurge (Ongoing improvements):** Miscellaneous protocol improvements that don't fit other phases. - EVM Object Format (EOF): Separate code from data in contracts - Account abstraction improvements - Precompile additions for cryptographic operations
**Where Ethereum is now (2026):** The Surge is actively progressing. Dencun (EIP-4844) is complete. Full danksharding requiring DAS is in research/development. The Verge (Verkle trees) is being implemented. The Purge has begun with EIP-4444 discussions.
Frequently Asked Questions
When will Ethereum complete its full roadmap?
Ethereum development has no fixed completion date — it's an ongoing process. Vitalik Buterin has suggested the Surge (full danksharding) and Verge (Verkle trees) are 3–5 year timeframes from 2024. The Purge and Splurge are continuous improvements. Some estimates suggest 'mostly complete' roadmap execution by 2030, but Ethereum's history shows consistent slippage in delivery timelines. Development quality is prioritized over speed.
What does the roadmap mean for ETH price?
Each roadmap milestone reduces costs, improves security, or increases ETH's deflationary properties — all theoretically bullish. The Merge's fee burn + reduced issuance made ETH deflationary during peak activity periods. The Surge reduces L2 fees, increasing L2 adoption which generates L1 blob fee revenue. Successful roadmap execution strengthens the investment thesis. However, protocol development is separate from market timing — delivery timelines and market cycles don't necessarily align.
What is 'The Splurge' and why is it called that?
The Splurge is Vitalik Buterin's somewhat humorous name for 'everything else' — improvements that don't fit neatly into the Merge/Surge/Verge/Purge framework. It includes important but less categorizable improvements like EVM Object Format (EOF), deep cryptographic optimizations, single-slot finality (reducing finality time from 12 minutes to 12 seconds), and account abstraction improvements. The name reflects that it's a collection of important improvements without a single unifying theme.
Related Terms
EIP-1559 (Ethereum Fee Reform)
EIP-1559, implemented in August 2021, reformed Ethereum's fee market by replacing the first-price auction with a base fee (burned) plus an optional tip. This made gas fees more predictable, introduced ETH burning (deflationary pressure), and improved the user experience of fee estimation.
Blobspace (EIP-4844)
Blobspace is a new data storage layer added to Ethereum by EIP-4844 (proto-danksharding), consisting of temporary 'blobs' — large data packets attached to blocks but not processed by the EVM. L2 rollups use blobs to post compressed transaction data to Ethereum at dramatically lower cost than calldata.
Verkle Trees
Verkle trees are a data structure that will replace Merkle Patricia Tries in Ethereum, enabling stateless clients — nodes that can verify blocks without storing the entire Ethereum state. They use vector commitments (not hashes) to create much smaller proofs, reducing witness sizes from ~8MB to ~200KB.
Data Availability Sampling (DAS)
Data Availability Sampling is a cryptographic technique that allows light clients to verify that all transaction data in a block has been published — without downloading the full block. By randomly sampling small chunks of block data and using erasure coding, nodes can verify data availability with high probability while only downloading a tiny fraction of the total block size.
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