# Announcing the Platåberget Testnet

DevFeed: [Announcing the Platåberget Testnet](<https://devfeed.tech/articles/announcing-the-plataberget-testnet-17231.md>)

Original publisher: [Read original article](<https://blog.ethereum.org/en/2026/08/17/plataberget-testnet>)

Author: Protocol DevOps

Published: 2026-08-17T00:00:00Z

Content type: news

Language: en

Sources: [Ethereum Foundation Blog](<https://devfeed.tech/sources/ethereum-foundation-blog.md>)

Topics: [Ethereum](<https://devfeed.tech/topics/ethereum.md>), [Tooling](<https://devfeed.tech/topics/tooling.md>), [Network](<https://devfeed.tech/topics/network.md>)

Tags: [ethereum](<https://devfeed.tech/tags/ethereum.md>), [network](<https://devfeed.tech/tags/network.md>), [protocol-announcements](<https://devfeed.tech/tags/protocol-announcements.md>), [scale](<https://devfeed.tech/tags/scale.md>), [tooling](<https://devfeed.tech/tags/tooling.md>), [validation](<https://devfeed.tech/tags/validation.md>)

## AI overview

The Platåberget testnet is an early, publicly joinable testing ground for Ethereum's Glamsterdam upgrade. It is intended to run for several months so the community can test post-Glamsterdam changes, including consensus and execution-layer changes, gas repricings, block-level access lists, larger contracts, and updated consensus data structures. Tools that hardcode maximum gas limits, including wallets, indexers, and gas estimators, will need updates.

## Source excerpt

tl;dr: Meet Platåberget: Glamsterdam's (Gloas + Amsterdam) early testing ground open to public participation. This upgrade comes with breaking changes for application developers. Notably, any tool that relies on a hardcapped maximum gas limit (think wallets, indexers and gas estimators) will break and needs to be updated. Please use this...