An Ethereum researcher proposed the EIP-8142 “Block-in-Blobs” proposal, aiming to encode transaction data into blobs to reduce bandwidth requirements. Through data availability sampling and cryptographic commitments, it ensures correctness and data availability, thereby unifying to a “data gas” billing model and improving the reliability of zkEVM use cases.

Ethereum founder Vitalik Buterin discusses the Ethereum expansion roadmap, divided into short-term and long-term plans. The short-term relies on the Glamsterdam upgrade, addressing issues through block-level access lists and Gas re-pricing; the long-term focuses on ZK-EVM and blobs, aiming to improve data availability and verification efficiency, ensuring security and high Gas limits.

Ethereum co-founder Vitalik Buterin introduced Ethereum's short-term and long-term scalability plans. In the short term, the Glamsterdam upgrade will introduce block-level access lists and multi-dimensional Gas mechanisms. In the long term, the focus will be on the iteration of ZK-EVM and Blobs, with full deployment of ZK-EVM expected by 2027.

On January 27, the blockchain research organization MigaLabs disclosed an analysis showing that after Ethereum completes the Fusaka upgrade in December 2025, it has experienced significant pressure when processing data-intensive blocks. This raises questions about whether it can support larger-scale Layer 2 data throughput. The core goal of the Fusaka hard fork is to allow Layer 2 networks to submit more blob data to the mainnet, thereby reducing Rollup costs and increasing scalability. However, the actual operation has not fully met expectations. Based on data from over 750,000 block slots since October 2025, MigaLabs found that although the official target number of blobs per block has gradually increased to 14, the median number of blobs in the network has actually decreased. Blocks containing 16 or more blobs are extremely rare, occurring only a few hundred times, indicating that the expanded capacity has not been fully utilized.

January 27 News, Ethereum has new technical concerns after the Fusaka upgrade. Research organization MigaLabs released a report stating that as the number of blob data packets submitted by Layer2 networks to the Ethereum mainnet increases, the network becomes more prone to failures or discards when processing high data volume blocks, indicating that the current Ethereum is not yet fully adapted to higher-scale data throughput demands. The Fusaka upgrade was deployed in December 2025, with the core goal of providing higher data channels for Layer2 scaling. Before the upgrade, each block could carry a maximum of 9 blobs, and the upgrade roadmap allows capacity to eventually increase by up to 8 times. Ethereum Foundation executive Alex Stokes also admitted at the time that this is a very new technology, and the network's performance under extreme conditions remains uncertain.

Ethereum network recently received an important upgrade. On Wednesday, Ethereum completed its second hard fork that only adjusts the Blob parameters (BPO), officially increasing the maximum number of Blobs per block from 15 to 21, seen as a key first step in Ethereum's 2026 scalability roadmap. This upgrade directly enhances the data throughput capacity of the Ethereum Rollup system, laying the foundation for Layer 2 scaling. The BPO hard fork took effect at 1:01:11 UTC. The core change not only involves increasing the Blob limit but also raising the Blob target count from 10 to 14. Industry experts generally believe that the target number is more practically meaningful than the theoretical limit, because if the limit of 21 Blobs is approached long-term, it could put pressure on node bandwidth and storage capacity.