Tempo, a blockchain focused on payments and backed by Stripe and Paradigm, has launched its public testnet. The platform aims to provide instant settlement and low fees, and has gained partnerships with firms like Mastercard and UBS. Tempo recently raised $500 million in a Series A funding round, boosting its valuation to $5 billion.

Arc has launched its public testnet, inviting developers and enterprises to build on its new Economic OS, designed to facilitate real-world economic activity onchain. With participation from major financial institutions and diverse global players, Arc aims to create a more inclusive and efficient global economic system. The platform supports stablecoin issuers and provides essential tools for developers to enhance the digital asset ecosystem.

Celestia has introduced mamo-1, a public testnet that features 128MB blocks and achieves a throughput of 21.33MB/s, significantly surpassing the mainnet's capabilities. This testnet allows developers to test high-throughput applications in a more realistic environment, leveraging innovations like the Vacuum! data propagation protocol for enhanced performance and robustness.