Tezos has successfully completed its Tallinn protocol upgrade, reducing the base layer block time to 6 seconds. This marks the 20th major update since the blockchain's inception in 2018, achieved without a network fork. The upgrade enhances network efficiency by cutting storage costs and minimizing latency, thus accelerating finality time. The Tallinn upgrade allows all validators, known as bakers, to validate each block using BLS cryptographic signatures, which aggregate multiple signatures into one per block, reducing node load. Additionally, a new address indexing mechanism improves storage efficiency by 100 times. A Tezos spokesperson highlighted that this upgrade aligns with the broader trend of blockchain networks enhancing speed and throughput to accommodate increasing transaction demands.