Cardano (ADA)'s long-awaited Vasil upgrade, which aims to improve the network's scalability and performance, has gone through the testnet "successfully" and is expected to deploy on the mainnet in a month.

Input Output Hong Kong (IOHK), the research and development company that has developed the Cardano blockchain, announced on Sunday that,

"We’re happy to report that today at 20:20 UTC the IOG team has successfully hard forked the Cardano Testnet. This is an important next step in the journey towards the Vasil upgrade on mainnet."

The team also asked stake pool operators (SPOs) and developers building on the blockchain to start the final testing and integration processes. "Vasil is a complex program of work. Projects will need to check backward compatibility and SPOs will need to make some scripting adjustments," IOHK said.

Hours after the testnet launch, Cardalonia, a metaverse on the Cardano blockchain, also announced that the launch was a success, adding that the hard fork is now "inevitable."

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The Vasil hard fork is expected to deploy on the mainnet four weeks after its implementation on the testnet, meaning that the upgrade could go live in early August.

The upgrade, which follows the smart-contract-enabling Alonzo hard fork, is meant to bring significant performance and capability upgrades to Cardano. The upgrade will achieve this by improving script performance and efficiency, as well as by lowering costs.

The update was initially set to launch on June 29. However, in a blog post, IOHK confirmed that there would be a slight delay.

Meanwhile, at noon on Monday (UTC), the 7th coin by market capitalization, ADA, is up 3% over the past 24 hours, trading at USD 0.465. It is down 5% in a week