Jump Crypto proposes removing the block limit on Solana to improve network speed.
Date: 2025-09-30 Author: Oliver Abernathy Categories: BUSINESS
Web3 company Jump Crypto, which develops the Firedancer client for Solana, has introduced a new proposal, SIMD-0370. Its goal is to remove the fixed limit of 60 million computational units (CUs) per block, allowing the network to scale based on validator capacity. The team believes this will improve transaction processing speed and encourage participants with older hardware to upgrade their infrastructure.
The proposal comes shortly after the near-unanimous approval of the Alpenglow protocol, which will be Solana's largest upgrade. Its launch is scheduled for December 2025, with implementation of Jump Crypto's initiatives expected after that. Alpenglow is expected to reduce transaction finality time from 12.8 seconds to 150 milliseconds, significantly increasing network resilience.
Research firm Anza, a spinoff from Solana Labs, explained the mechanics of the changes. They argue that the process creates a vicious cycle: block producers strive to accommodate more transactions for the sake of fees, while validators who miss blocks lose rewards and are forced to invest in hardware upgrades and code optimization. This improves overall network performance and opens the door to further increases in load.
Previously, Jito Labs CEO Lucas Bruder proposed only increasing the block limit to 100 million CUs under SIMD-0286. However, the new initiative proposes lifting the limit entirely, making it more radical.
Nevertheless, concerns are being raised in the community. Engineer Akhilesh Singhania noted in a GitHub discussion that such a move could lead to a new type of centralization. He believes that large validators with the resources for constant upgrades will strengthen their positions, while smaller players unable to upgrade risk leaving the market. As a result, the network could end up in the hands of a smaller number of major participants.
Jump Crypto views this initiative as part of a long-term strategy to strengthen Solana and diversify validators. Their Firedancer project has been in mainnet testing since September 2024 and is designed to increase throughput and stability of the ecosystem.
Therefore, removing the block limit marks the next step in Solana's evolution. However, the balance between high throughput and maintaining decentralization remains an open question and is generating active debate in the community.
