Crypto: Tezos Tallinn Upgrade Now Live, Slashes Block Times To 6 Seconds

Crypto: Tezos Tallinn Upgrade Now Live, Slashes Block Times To 6 Seconds

The Tallinn protocol upgrade marks Tezos' 20th major update since launching in 2018, and was implemented without a network fork.

Tezos, a layer-1 proof-of-stake blockchain network, implemented its latest protocol upgrade, Tallinn, on Saturday, which reduced block times on the base layer to 6 seconds.

The latest upgrade is the 20th update to the protocol, which reduces block times, slashes storage costs and reduces latency, resulting in faster network finality times, according to an announcement from Tezos.

Tallinn also allows all network validators, known as “bakers”, to attest to every single block, rather than a subset of validators attesting to blocks, which is how validators verified blocks in previous versions of the protocol, Spokespeople for Tezos explained:

The upgrade also introduced an address indexing mechanism that removes “redundant” address data, reducing storage needs for applications running on Tezos.

Spokespeople for Tezos said the address indexing mechanism improves storage efficiency by a factor of 100.

Tezos’ latest upgrade showcases the push for faster and higher-throughput blockchain networks that can handle more transactions per second and reduced settlement times to accommodate a growing number of use cases.

Related: The 5 busiest blockchains of 2025 and what powered their growth

The first generation of blockchain networks, like Bitcoin and Ethereum, had speeds of about seven transactions per second (TPS) and 15-30 TPS, respectively.

The Bitcoin protocol produces blocks about every 10 minutes, which presents a challenge for everyday payments and commercial transactions on the base layer.

Source: CoinTelegraph