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A protocol upgrade to the Cardano blockchain that was implemented using Cardano’s HFC approach. Its objective is to make the blockchain more robust and scalable, increasing throughput and reducing latency in block transmission.

The Vasil hard fork combinator saw the implementation of block diffusion pipelining and added reference inputs, inline datums, and reference scripts through four key CIPs (CIP-31, CIP-32, CIP-33, CIP-40).

These changes allow for the network to process a larger number of transactions, improving the consistency of block propagation times without affecting network performance.