Introducing the Amoy Testnet for Polygon PoS

A new, Sepolia-anchored testnet has been launched for Polygon PoS. Here’s what you need to know

Polygon Labs
January 12, 2024
Polygon Solutions
Image source: Dribbble

As Ethereum goes, so goes the Polygon PoS chain. 

After hearing from the community, the Amoy testnet for Polygon PoS is being launched, a second testnet that provides a low-stakes environment to build, test, and break things. 

Amoy will use Ethereum’s Sepolia testnet as the root (L1) chain. Developers deploying on Amoy can continue to count on the availability of essential validators, infra, faucets, tooling, and more, in a sustainable and future-proof environment.

Here’s a brief rundown of questions you might have about this launch.

Wait, what’s happening?

New testnet, new state, new vibes. Welcome, Amoy! 

But why though? 

The beloved and widely used Mumbai testnet for Polygon PoS uses Ethereum’s Goerli testnet as its root chain. This means Mumbai counts on Goerli for block production. 

But Goerli is currently scheduled for deprecation, by the end of Q1 2024, with major RPC providers planning to pull support. Although the exact timing isn’t known, the writing is on the wall.

No Goerli = broken Mumbai. The community consensus across the Polygon ecosystem has been to deprecate Mumbai in tandem with Goerli. 

When Goerli goes dark, so will Mumbai.

(Which, by the way, is what Ethereum alignment looks like!)

So, for a little while, there will be two testnets for Polygon PoS? 

Yes! Both the Mumbai and Amoy testnets will operate independently, for an indefinite period of time, ensuring a smooth transition for users and developers for whenever Goerli is deprecated. 

Like Ethereum, Polygon PoS will be, for a while, a multi-testnet chain.  

What are you waiting for? Connect to Amoy and begin deploying today:

Want to discuss the best ways to shape the Polygon ecosystem? Find more details about how to contribute to Polygon Protocol Governance Calls here, or head over to the Polygon governance forum to participate in the conversation.

And make sure to tune into the blog and our social channels to keep up with the latest.

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