# Unlock Protocol Feature Announcement: Addition of Base Sepolia Testnet

*Developers can now test their Unlock Protocol-powered apps on Base Sepolia.*

By [Unlock Protocol](https://paragraph.com/@unlockprotocol) · 2024-04-04

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Sepolia is an Ethereum test network (testnet) that developers use to test their applications and smart contracts before deploying them on a production network. Sepolia is a newer testnet compared to others like the now-deprecated Goerli testnet, providing a more up-to-date environment that closely mimics the mainnet.

Unlock Protocol has supported Sepolia on Ethereum mainnet since its release.

With this feature release, Unlock Protocol supports Base Sepolia as well.

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*Originally published on [Unlock Protocol](https://paragraph.com/@unlockprotocol/base-sepolia)*