Evolution of the Ethereum "2.0" Concept
The vision, initially widely known as "Ethereum 2.0" or "Serenity," aimed to significantly enhance Ethereum's scalability, security, and sustainability by introducing the Proof-of-Stake (PoS) consensus mechanism and sharding technology. However, as development progressed, this grand vision has been broken down into a series of specific, phased upgrades, and the term "Ethereum 2.0" has gradually been replaced by more specific hard fork names to better reflect its continuous evolution.
Key Completed Upgrade Milestones
- Beacon Chain Launch: The Beacon Chain successfully launched on December 1, 2020, introducing the Proof-of-Stake mechanism and running in parallel with the original Ethereum mainnet, laying the foundation for the subsequent consensus mechanism transition.
- The Merge: On September 15, 2022, Ethereum officially completed its transition from the Proof-of-Work (PoW) to the Proof-of-Stake (PoS) consensus mechanism. This was one of the most significant milestones in Ethereum's history, reducing the network's energy consumption by approximately 99.95% and greatly enhancing its sustainability.
- Shanghai Upgrade: On April 12, 2023, this upgrade allowed for the withdrawal of staked ETH and its accumulated rewards on the Beacon Chain. This feature addressed staking liquidity issues, enhancing the flexibility and attractiveness of staking.
- Dencun Upgrade: On March 13, 2024, the Dencun upgrade was successfully deployed on the mainnet. Its core content was the introduction of EIP-4844 (Proto-Danksharding), which provides temporary data storage space for Layer 2 Rollup networks via "blobs." This innovation significantly reduced transaction fees for Layer 2 networks by 80-99%, thereby greatly improving the scalability and user experience of the Ethereum ecosystem. Each blob can hold a maximum of 128KB of data, and each block can carry 0 to 6 blobs, with a target of 3, which are pruned after being stored on the Beacon Chain for approximately 18 days.
Important Future Upgrades in Planning
Ethereum's upgrade pace has not stopped, with several future upgrades already in planning to further refine network functionality:
- Pectra Upgrade: Expected in May 2025, it aims to strengthen Ethereum's execution and consensus layers, improve staking flexibility, and enable account abstraction to simplify user interaction with the blockchain.
- Fusaka Upgrade: Expected to launch by the end of 2025, it will enhance Layer 2 data availability through PeerDAS technology, further reducing Rollup operating costs and improving efficiency.
- Glamsterdam Upgrade: Expected to launch in the first half of 2026, it focuses on the fairness and censorship resistance of Maximum Extractable Value (MEV), including built-in Proposer-Builder Separation (ePBS).
- Hegota Upgrade: Expected to launch in the second half of 2026, discussions include introducing Verkle trees to improve node efficiency and support network decentralization.
- Full Danksharding: With the development of Layer 2 Rollup technology, Ethereum's sharding strategy has evolved into Danksharding, centered on Data Availability Sampling. EIP-4844 is a crucial step towards full Danksharding, aiming to provide massive data bandwidth rather than the initially envisioned "shard chain" model.
Impact and Stakeholders of Ethereum Upgrades
Ethereum's continuous upgrades have had a profound impact on the entire crypto ecosystem:
- Ethereum Foundation and Core Developers: As the planners and implementers of these upgrades, they are committed to improving Ethereum's scalability, security, decentralization, and sustainability.
- Layer 2 Solution Providers: Such as Arbitrum, Optimism, Base, and zkSync, are direct beneficiaries of the Dencun upgrade, with significantly reduced transaction fees making their networks more competitive and attracting more users and developers.
- Users and DApp Developers: Benefit from lower transaction fees and higher network efficiency, which helps promote the adoption and innovation of decentralized applications. Relevant developments can be followed in Svmuu's continuous reports.
- Stakers: After the Shanghai upgrade, stakers can manage their staked ETH more flexibly, increasing the attractiveness of participating in network security.
