Ethereum Increases BLOB Object Limit to 21

On January 7, Ethereum developers successfully executed the Blob Parameter-Only (BPO) fork on the mainnet, increasing the limit of BLOB objects from 15 to 21.

BPO2 is live! Blob limit is now 21 🚀

— terence (@terencechain) January 7, 2026

This upgrade also raised the target BLOB size from 10 to 14, allowing each BLOB object to retain up to 128 KB of data. Consequently, Ethereum blocks can now accommodate a total of 2688 KB at full capacity. This change is expected to enhance transaction processing capabilities, thereby boosting the efficiency of the blockchain.

This is the second increase in BLOB limits following the Fusaka upgrade, with the first BPO implemented on December 9, 2025. The Ethereum team aims to improve the transaction throughput of rollups, which are crucial for scaling solutions. BLOB objects also play a role in stabilizing base layer fees.

Since late last year, gas prices on Ethereum's mainnet have exhibited increased stability. On January 6, a noteworthy event occurred as the Ethereum staking withdrawal queue reached zero, although it has since slightly risen to about an hour's waiting time for unlocking coins.

Additionally, on December 30, Ethereum set a remarkable record of processing 2.2 million transactions in just one day.