The Tezos network has activated its Ushuaia protocol upgrade at block 13,857,889, deploying a 15x expansion in Data Availability Layer (DAL) capacity alongside adjustments to rollup governance mechanics.
According to the official Tezos Spotlight announcement, the bandwidth increase targets data throughput constraints that have historically limited rollup activity on the chain. The expanded DAL capacity is designed to allow Layer 2 projects to post larger volumes of transaction data on-chain, reducing competition for block space and lowering latency for rollup operations.
Ushuaia, the 21st Tezos protocol upgrade is live!
⚡ DAL bandwidth increase → scaling data availability for Smart Rollups
🛠️ Dynamic DAL attestation lag → optimising confirmations
🔧 Rollup-aligned PVM upgrades → advancing Tezos X infrastructure pic.twitter.com/cN15xp5Wya
— Tezos (@tezos) June 30, 2026
Tezos said that:
‘Ushuaia is Tezos’ 21st protocol upgrade – proposed, adopted, and seamlessly activated through on-chain governance by network stakeholders, with no fork or disruption to the network‘
The activation also introduces modifications to rollup governance processes. These updates aim to improve how parameter adjustments are proposed and executed, giving rollup operators a more structured framework for managing sequencer configurations and protocol-level changes.
Ushuaia launches as a scaling-focused iteration for Tezos, addressing infrastructure bottlenecks that emerge as rollup architectures expand. The network has transitioned to the new parameters, and validators have successfully synchronized with the updated consensus requirements.
Full bandwidth utilization and governance implementation metrics will become clearer as developers adjust their data posting strategies to the higher DAL limits. The exact governance workflows will be validated as rollup teams deploy under the new framework.