The Van Rossem hard fork has been activated on Cardano . This is the first update in the platform's history initiated by the community, rather than Input Output, the company that originally developed the blockchain.

Source: Cardanoscan
On July 18, the main network switched to version 11. According to Cardanoscan data, the transition from protocol version 10 was completed in epoch 643, and the updated system was launched in epoch 644.
Thanks to Van Rossem, the costs of executing smart contracts have been reduced. The update also includes improvements to Plutus and optimization of its cost model. This also serves as an important preparatory step for the upcoming large-scale upgrade of Ouroboros Leios.
In addition to improvements to Plutus and the Plutus cost model, this update lays the groundwork for the next Dijkstra-era hard fork update, which will add Ouroboros Leios to Cardano , Input Output stated.
Ouroboros Leios is a scaling proposal for the Ouroboros Proof-of-Stake consensus used by Cardano . Expected to launch in late 2026, it will significantly increase the number of transactions per second without compromising Ouroboros' security guarantees.
Historically, blockchain upgrades don't guarantee a rise in the value of the native cryptocurrency. At the time of writing, Cardano (ADA) was trading at $0,1623, down 2% in 24 hours, according to CoinMarketCap.
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