Ethereum 2.0 Explained: The Merge, Staking and 2026 Roadmap

Ethereum has changed a lot since the Ethereum 2.0 roadmap began. The network now runs on Proof-of-Stake and uses rollups plus blob data to scale. Full Danksharding is not complete: it remains a multi-stage roadmap item intended to expand data capacity for Layer 2 networks.

This article explains how Ethereum got here, what each upgrade did, and why it matters. Whether you’re new to crypto or already staking ETH, this guide will help you understand Ethereum’s journey and what’s next.

What is Ethereum 2.0?

Ethereum 2.0—now simply called Ethereum—was a major upgrade that transformed the network from Proof-of-Work to Proof-of-Stake. This shift made Ethereum far more energy-efficient and scalable. The upgrade included several key milestones:

• The Merge (2022): Combined the original Ethereum mainnet with the Beacon Chain, switching the consensus mechanism to Proof-of-Stake.
• Rollup scaling: Dencun introduced blob transactions in March 2024, Pectra expanded blob capacity in May 2025, and Fusaka added PeerDAS in December 2025. The original plan for 64 execution shard chains was dropped; full Danksharding is still in development.
• Staking: Users can earn protocol rewards by staking ETH to help secure the network. Rewards vary with the total amount staked, validator performance and execution-layer income. Check the official Ethereum Launchpad before depositing.

These upgrades have made Layer 2 transactions cheaper and Ethereum far more energy-efficient. Running a validator is still a serious operational commitment: the official Launchpad currently recommends a dedicated machine, fast uncapped internet, ample RAM and terabytes of SSD storage. Ethereum powers a large ecosystem of DeFi apps, NFTs, and Web3 platforms and continues to evolve through regular network upgrades.

This guide will cover the timeline for the upgrade to ETH2.0 and the solutions proposed.

The original 3 phases of Ethereum 2.0

The early Ethereum 2.0 roadmap was commonly described in three phases:

• Phase 0- Beacon Chain – Completed in 2020
• Phase 1- The Merge – Completed September 2022
• Phase 2- Sharding – superseded by a rollup-centric roadmap

Ethereum 2.0—now simply Ethereum—did not ultimately ship exactly as this original three-phase model proposed. The first two milestones were completed, while the scaling plan changed as rollups developed faster than expected.

Phase 0: Beacon Chain (Completed December 2020)

This phase introduced the Proof-of-Stake consensus mechanism via the Beacon Chain. It ran in parallel with the original Ethereum chain and laid the foundation for future upgrades by coordinating validators and generating randomness for staking.

Phase 1: The Merge (Completed September 2022)

The Merge combined the Beacon Chain with Ethereum’s mainnet, officially transitioning the network from Proof-of-Work to Proof-of-Stake. This reduced Ethereum’s energy consumption by over 99.9% and eliminated the need for mining.

Phase 2: Sharding (roadmap changed)

Ethereum did not launch 64 execution shard chains in 2024. The official roadmap says those shard chains are no longer planned. Instead, Ethereum is scaling through Layer 2 rollups, temporary blob data and a sequence of upgrades leading toward full Danksharding. Proto-Danksharding (EIP-4844) went live with Dencun in March 2024; full Danksharding remains several years away.

What replaced the original shard-chain plan?

The current scaling roadmap keeps Ethereum as the settlement and data-availability layer for rollups:

• Blob transactions: Dencun gave rollups a cheaper, temporary place to post data.
• PeerDAS: Fusaka introduced data-availability sampling so nodes can verify portions of blob data rather than downloading every blob in full.
• More blob capacity: Pectra and the post-Fusaka blob-parameter upgrades increased the amount of rollup data Ethereum can carry.
• Full Danksharding later: The long-term design proposes substantially more blob capacity and further sampling improvements, but it is not live today.
• Real hardware requirements: Sampling can reduce some bandwidth and storage burdens, but a validator still needs a reliable, well-provisioned computer; it is not a phone-based task.

What are layer 2 rollups?

Layer 2 rollups are scaling solutions that execute transactions away from Ethereum Layer 1 and post compressed data or proofs back to it, reducing congestion and lowering fees. Rollups are the backbone of Ethereum’s current scalability strategy.

• Optimistic and ZK Rollups: Both types are widely adopted. ZK rollups, in particular, have gained traction for their speed and security, powering applications in DeFi, gaming, and identity verification.
• Blob Transactions and Proto-Danksharding: Introduced in the Cancun-Deneb upgrade, blob-carrying transactions allow rollups to post large data payloads efficiently. This has drastically reduced costs and improved throughput.
• Rollup-Centric Ethereum: Ethereum functions as a data-availability and settlement layer for rollups. The roadmap targets aggregate throughput above 100,000 transactions per second; that figure is a scaling objective, not Ethereum Layer 1 throughput.
• Interoperability and Composability: Rollups are increasingly interoperable, allowing seamless asset transfers and smart contract interactions across different Layer 2s.
• Decentralized Applications at Scale: From social media platforms to real-time multiplayer games, rollups have enabled dApps that were previously impossible on Layer 1 due to cost and latency.

Learn more: Understanding layer 2 & scaling solutions: Arbitrum, Boba, Optimism, Polygon, Ethereum 2.0

What is the current state of Ethereum 2.0?

Ethereum 2.0—now simply referred to as Ethereum—completed its transition to Proof-of-Stake, but its scaling and protocol roadmap is ongoing. Here’s a snapshot of its current state:

• Proof-of-Stake Fully Operational: Since the Merge in September 2022, Ethereum has used Proof-of-Stake for consensus.
• Danksharding In Progress: Proto-Danksharding and PeerDAS are live, but full Danksharding is not. The former 64-shard-chain design was removed from the roadmap.
• Rollup-Centric Architecture: Layer 2 rollups post data back to Ethereum using blob transactions introduced in the Cancun-Deneb upgrade. Capacity has increased through subsequent upgrades, but fees and throughput still vary with demand.
• Post-Merge Upgrades: Pectra activated in May 2025 and Fusaka in December 2025. The next named upgrades and their proposed features remain subject to testing and community agreement.
• Staking and Withdrawals: Withdrawals have been enabled since the Shanghai (Shapella) upgrade in April 2023. Staking rewards are variable rather than a guaranteed interest rate.
• Upcoming Work: The roadmap continues to address Layer 1 scaling, blob scaling, censorship resistance, state growth and user experience. Proposed features can move between upgrades or be dropped.

How to set up an Ethereum Validator Node

Check out our LIVE demonstration on how to set up an Ethereum 2.0 Node

The video above records our early Ethereum 2.0 validator experiment. Its Topaz/Goerli commands are now historical and must not be used: Goerli was sunset in 2024, client packages and hardware requirements have changed, and mainnet validators must run both an execution client and a consensus client.

For a current setup, begin with the official validator checklist, choose supported execution and consensus clients, verify the latest hardware guidance, practise on the validator-focused Hoodi testnet, and generate deposit data only through current client tooling. A validator requires at least 32 ETH to activate, reliable uptime and careful separation of signing and withdrawal keys. Never send ETH to an address copied from a third-party tutorial.

Staking Ethereum on a validator node

Ethereum now operates fully under Proof-of-Stake, and staking remains a core mechanism for securing the network and earning passive income.

• Stake Requirement: 32 ETH is required to activate a validator. This stake acts as collateral to ensure honest behavior and network uptime.
• Rewards: Rewards vary with total stake, validator performance, block proposals and execution-layer income. They are paid in ETH and are not guaranteed.
• Withdrawals: Since the Shanghai (Shapella) upgrade in April 2023, stakers can withdraw both principal and rewards. Withdrawals are processed in queue and typically take hours to days.
• Risks: Validators face penalties for downtime or incorrect attestations. Slashing is rare but possible in cases of malicious behavior or prolonged inactivity.
• Network Health: Validator count, total ETH staked and activation or exit queues change continuously. Check a live beacon-chain explorer rather than relying on a dated figure.
• Liquid Staking Options: For users with less than 32 ETH or those seeking flexibility, platforms like Lido, Rocket Pool, and Coinbase offer tokenized staking (e.g. stETH, rETH) with instant liquidity and pooled validation.

Ethereum Staking: Deposit contract address release

The Ethereum staking deposit contract was officially released on November 4, 2020, marking the beginning of Phase 0 and enabling users to stake ETH and become validators. While the original launch required careful navigation through the Ethereum Launchpad, staking has since become more streamlined and widely accessible.

Current points to know:

• Deposit Contract Still Active: The original deposit contract remains the gateway for validator activation. Users must still follow the Launchpad process to generate keys and deposit 32 ETH securely.
• Withdrawals Enabled: Since the Shanghai (Shapella) upgrade in April 2023, stakers can withdraw both rewards and principal. This has made staking more flexible and liquid.
• Validator Metrics Change: The validator count, effective stake and queue times are live network variables. Check the Launchpad or a current beacon-chain explorer before making a decision.
• Liquid Staking Alternatives: Platforms like Lido, Rocket Pool, and Coinbase offer pooled staking and tokenized derivatives (e.g., stETH, rETH), allowing users to stake without the full 32 ETH requirement.
• Security Reminder: Sending ETH directly to the deposit contract without using the Launchpad will still result in a failed transaction. Proper setup remains essential to avoid loss of funds or penalties.

Ethereum Staking Update: Yields?

Ethereum staking yields have stabilized following the full rollout of Proof-of-Stake and the Shanghai upgrade, which enabled withdrawals in April 2023.

Risk Factors: While slashing remains rare, validators must maintain uptime and correct behavior to avoid penalties. Liquid staking platforms typically abstract these risks for users.

Current APR: Ethereum does not promise a fixed APR. The protocol reward rate changes with total effective stake, while an individual validator’s return also depends on uptime, proposals, sync-committee duties and execution-layer rewards.

Yield Trends: As more ETH is staked, the consensus-layer reward available to each validator generally falls. Live totals and queue conditions should be checked at the time of staking.

Liquid Staking: Tokenized staking options like stETH (Lido), rETH (Rocket Pool), and cbETH (Coinbase) offer competitive yields and instant liquidity, making them popular among users with less than 32 ETH.

Rewards Distribution: Staking rewards are paid in ETH and accumulate continuously. Validators earn from proposing blocks, attesting to others, and participating in sync committees.

You can check the current APR, total ETH staked, and number of validators here.

Progress of Ethereum 2.0 so far

Ethereum 2.0—now simply Ethereum—completed the transition to Proof-of-Stake, while the scaling roadmap continues. Here’s a summary of its progress:

• Beacon Chain (Phase 0): Launched in December 2020, introducing Proof-of-Stake and laying the foundation for future upgrades.
• The Merge (Phase 1): Completed in September 2022, merging the Beacon Chain with Ethereum’s mainnet and eliminating Proof-of-Work. This reduced energy consumption by over 99.9%.
• Scaling roadmap: The original 64-shard-chain proposal was dropped. Dencun added proto-Danksharding, Pectra increased blob capacity, and Fusaka added PeerDAS; full Danksharding remains future work.
• Post-Merge Upgrades: Ethereum has entered the “Surge,” “Scourge,” “Verge,” “Purge,” and “Splurge” phases—targeting scalability, censorship resistance, stateless clients, historical data cleanup, and protocol refinement.
• Network Metrics: Stake, validator counts, participation and queues change continuously and should be checked using current network data.
• Rollup-Centric Architecture: Layer 2 rollups use Ethereum for settlement and data availability. More than 100,000 transactions per second is a roadmap-level aggregate scaling target, not current Layer 1 throughput.

What’s next in the development of Ethereum 2.0?

With the Merge complete and the scaling roadmap still in progress, Ethereum is focusing on higher Layer 1 and blob capacity, decentralization, censorship resistance and long-term sustainability.

The roadmap outlined by Vitalik Buterin continues through five major upgrade phases:

• The Surge: Ongoing work to scale rollups, blobs and Layer 1. Dencun, Pectra and Fusaka delivered major pieces, but full Danksharding is not complete.
• The Scourge: Currently underway, this phase addresses MEV (Maximal Extractable Value) risks and aims to ensure fair, neutral transaction inclusion. Protocol-level changes are being tested to reduce centralization in block production.
• The Verge: Research and upgrades intended to make block verification easier and more resource-efficient. Timelines and the exact technical path remain subject to change.
• The Purge: Aimed at reducing historical data bloat, this phase will simplify node operation by removing unnecessary legacy data. It will also streamline the Ethereum protocol for developers.
• The Splurge: A collection of smaller upgrades and optimizations, including EVM improvements, fee market refinements, and UX enhancements. These updates are ongoing and released incrementally.

What will happen after ETH 2.0 is launched?

Ethereum 2.0 is no longer a separate future network or token. Ethereum transitioned from Proof-of-Work to Proof-of-Stake and embraced a rollup-centric architecture, but full Danksharding has not launched. Here’s what has unfolded since the Merge:

• Scalability Improved: Blob transactions and Layer 2 rollups have increased aggregate capacity and can reduce user fees. They have not eliminated congestion, and Ethereum Layer 1 fees still vary with demand.
• Energy Efficiency: The network consumes over 99.9% less energy than it did under Proof-of-Work, making Ethereum one of the most sustainable major blockchains.
• Validator Participation: Proof-of-Stake validators secure the network, but operators still need capable hardware, reliable bandwidth and disciplined key management.
• Rollup Dominance: Most user activity now occurs on Layer 2 platforms like Arbitrum, Optimism, and zkSync. Ethereum Layer 1 serves primarily as a settlement and data availability layer.
• Competition Continues: Ethereum retains a large application and developer ecosystem, but scalability, user experience and competition from other networks remain active issues rather than solved problems.
• Ongoing Upgrades: Ethereum is now progressing through the “Scourge,” “Verge,” “Purge,” and “Splurge” phases, which aim to improve censorship resistance, decentralization, protocol simplicity, and developer experience.

Eventually, the number of transactions per second will drastically increase to over 100,000 tps. So, the question would be, what would happen to the competition i.e. the “Ethereum killers”? Find out more in our article: Ethereum Merge is coming, is this the end of Ethereum killers?

Frequently Asked Questions (FAQ)

Further reading

Ethereum Foundation: https://ethereum.org/en/upgrades

Pyrsmatic Labs: https://medium.com/prysmatic-labs/how-to-scale-ethereum-sharding-explained-ba2e283b7fce

Ethereum Wallet holders: https://bitinfocharts.com/comparison/activeaddresses-eth.html

Disclaimer: Cryptocurrency trading involves significant risks and may result in the loss of your capital. You should carefully consider whether trading cryptocurrencies is right for you in light of your financial condition and ability to bear financial risks. Cryptocurrency prices are highly volatile and can fluctuate widely in a short period of time. As such, trading cryptocurrencies may not be suitable for everyone. Additionally, storing cryptocurrencies on a centralized exchange carries inherent risks, including the potential for loss due to hacking, exchange collapse, or other security breaches. We strongly advise that you seek independent professional advice before engaging in any cryptocurrency trading activities and carefully consider the security measures in place when choosing or storing your cryptocurrencies on a cryptocurrency exchange.