The Casper Network has taken a significant step forward with the activation of its latest upgrade, Casper 21, on December 11, 2025, in Zug, Switzerland. This upgrade is poised to enhance the network's functionality, particularly in the realm of real-world asset tokenization, as stated in the official source.
Reduction of Maximum Block Time
One of the key features of Casper 21 is the reduction of the maximum block time from 16 seconds to just 8 seconds. This improvement is expected to facilitate faster transaction finalization, making the network more efficient for users.
Introduction of Fee-Burning Mechanism
Additionally, the upgrade introduces a new fee-burning mechanism that permanently removes transaction fees from circulation. This innovative approach not only creates deflationary pressure but also aligns network usage with long-term sustainability goals.
Benefits of Casper 21 Enhancements
With these enhancements, Casper 21 aims to provide a more predictable economic model, ultimately benefiting its user base.
In a related development, BlackRock's recent report highlights the complexities of Ethereum's fee generation amid the rise of rollups, contrasting with Casper Network's advancements in transaction efficiency. For more details, see Ethereum fees.







