Ethereum Increases BLOB Object Limit to 21

Ethereum developers increased BLOB object limit to 21 with BPO fork.

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

BPO2 is live! Blob limit is now 21 🚀 pic.twitter.com/SFB7GjRPwg

— terence (@terencechain) January 7, 2026

The update also increased the target BLOB value from 10 to 14.

Each such digital object holds 128 KB of data, meaning an Ethereum block can now store up to 2688 KB (at the maximum allowable value). This allows for more transactions to be processed simultaneously, enhancing blockchain efficiency without directly risking overload.

The fork marks the second expansion of BLOB limits since the activation of the Fusaka upgrade. The previous BPO was implemented on December 9, 2025.

The Ethereum team’s initiative aims to expand the throughput of rollups. In addition to scaling layer two, BLOB objects have played a role in curbing base-level fees.

Since the end of last year, gas costs on the mainnet have shown greater stability.

Almost concurrently with the update, on January 6, the queue for Ethereum staking withdrawals reached zero. At the time of writing, the waiting period for unlocking coins has slightly recovered, now standing at about an hour.

Back on December 30, the network of the second-largest cryptocurrency by market capitalization set a new record: 2.2 million transactions processed in a single day.