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What Does Cardano’s 12.5% Block Size Increase Mean?


Since the advent of smart contracts, Cardano has made significant upgrades to its blockchain. As a result, the system needed to be more scalable in order to support the increased utilisation. The network has seen a number of enhancements since its inception in September, the most recent of which being the increase in block size.


Cardano revealed in a recent blog post that they were increasing block size by 12.5 % to accommodate the projected increased load on the network. With the 8KB increase, the overall block size is now 72KB, allowing for more transactions to fit into a single block. This will enable more transactions per second to be handled, as well as increased data throughput, resulting in increased capacity for its users.

Keep in mind that Cardano only averaged 10,000 transactions per day a year ago. A year later, the figure has climbed dramatically to more than 200,000 and is still rising. A 12.5 % increase in block size may not seem like much, but it is necessary to account for rising consumption.


Another reason for the increase in block size is the anticipated deployment of DApps on the blockchain in the near future. Because Cardano currently supports smart contracts, it is only a matter of time before developers begin deploying their apps. Because of the anticipated increase in traffic, raising block size is critical for the network.

The size of the blocks was not the only item that was increased. Plutus script memory units were also enhanced by Cardano transactions. Plutus script memory units per transaction have increased by 12.5 % to 11.25 million.

According to John Woods, Director of Cardano Architecture, who wrote the blog post, the modification was made due to increased developer demand. It will aid developers in their testing and deployment of DApps on Cardano.

“An increase in Plutus memory limits means that they can develop more sophisticated Plutus scripts, or that existing scripts will be able to process more data items, increase concurrency, or otherwise expand their capabilities.”

Woods points out that this is just the beginning of a sequence of modifications that will expand Plutus scripts’ real-world capabilities.

Transactional adjustments to block size and Plutus script memory units will be implemented gradually. Going forward, Cardano will use a slow and steady approach to the modifications. Although this may appear to be progressing too slowly for some, a 12.5 % increase demonstrates that the developer is not in a haste to make modifications that will harm the network.

“It’s not simply about writing more complicated scripts,” says the author. “It’s also about getting more data in,” the blog post continued.