Ethereum News Today: Ethereum’s Fusaka: Achieving 100,000 TPS While Maintaining Decentralization

Ethereum Prepares for Major Fusaka Upgrade in 2025

Ethereum's development team is ramping up efforts for the Fusaka upgrade, the blockchain’s second significant update scheduled for 2025. As the network’s processing power grows, this upgrade—planned for December 3—will introduce PeerDAS (peer data availability sampling). This innovative feature allows validators to check rollup data without needing to download entire blocks, greatly reducing the strain on bandwidth and storage.

PeerDAS and Enhanced Layer-2 Performance

Outlined in EIP-7594, PeerDAS is designed to boost data throughput for layer-2 solutions, helping to resolve current limitations in transaction speed and cost efficiency. This step is part of Ethereum’s broader vision to surpass 100,000 transactions per second by improving both its core infrastructure and supporting advancements on layer-2 networks.

Network Expansion and Gas Limit Increases

Ethereum’s scaling goals are already evident on the mainnet. In November 2025, the block gas limit was raised to 60 million—the highest in four years—after more than 513,000 validators backed the change. This increase allows for more transactions and smart contract executions per block, reducing congestion during busy periods. The gas limit boost is a result of the “Pump the Gas” campaign, initiated in March 2024 by Eric Connor and Mariano Conti, which aims to lower transaction fees and enhance the user experience. Validator coordination in late 2024 paved the way for this expansion, setting the stage for Fusaka’s deployment.

Technical Innovations and Safeguards

Fusaka’s architecture introduces BPO (Blob Parameter Only) forks, enabling gradual adjustments to blob capacity without the need for disruptive hard forks. This approach lets Ethereum scale smoothly as demand from layer-2 solutions rises. Additional proposals, such as EIP-7825 (which limits gas usage per transaction) and EIP-7934 (which sets a 10 MB block size cap), are designed to prevent denial-of-service attacks and ensure that individual nodes can continue to validate blocks efficiently—helping to maintain the network’s decentralized nature.

Improvements in User Experience and Security

The upgrade also brings enhancements for users and validators. EIP-7917 introduces deterministic proposer lookahead, making the schedule for future block proposers predictable and accessible on-chain. This transparency benefits validators and streamlines network operations. Furthermore, the introduction of history expiry mechanisms—part of Ethereum’s “Verge” and “Purge” phases—will eventually remove outdated data, making node maintenance more efficient.

Ethereum’s Ongoing Evolution

Ethereum’s journey toward scalability has been marked by several major upgrades: The Merge (2022) shifted the network to proof-of-stake, Shapella (2023) enabled withdrawals for staked ETH, and Dencun (2024) introduced more affordable data storage. Pectra (May 2025) refined staking mechanisms, and now Fusaka aims to unify these advancements by further improving data availability and modular scalability. Experts believe this positions Ethereum to rival other high-performance blockchains while preserving its security and decentralized ethos.

Market Response and Future Outlook

Reactions from the market have been varied. Ethereum’s price has remained above $3,000, with technical indicators showing both resilience and ongoing bearish trends. The network’s ability to handle increased demand after the upgrade will depend on the adoption of layer-2 solutions, institutional involvement, and broader economic factors. Nevertheless, with Fusaka’s launch approaching, Ethereum is poised to support the next generation of decentralized applications and financial services.