Ethereum Foundation Launches Platåberget Testnet for Glamsterdam Upgrade
The Ethereum Foundation’s Protocol DevOps team has launched Platåberget, an early-stage testnet designed to prepare Ethereum for its upcoming Glamsterdam upgrade. The network is now open for community testing and is expected to remain operational for several months, providing developers with a stable environment to test the new protocol features.
According to Foresight News, the Glamsterdam fork is scheduled to activate on Platåberget on August 20. Developers can access one-click network configuration along with a faucet that distributes test ETH, making participation easier for the broader Ethereum development community.
Platåberget represents an early step in a much larger testing process. Once feedback from the network has been incorporated into Ethereum client software, developers plan to launch a non-finality devnet within approximately one month.
That network will focus on unusual or abnormal consensus scenarios, helping developers identify potential weaknesses before the upgrade moves closer to production.
Long-running Ethereum testnets, including Sepolia and Hoodi, are expected to undergo the Glamsterdam fork later. Successful testing across these networks would eventually clear the way for deployment on Ethereum mainnet.
What Glamsterdam Changes
The upgrade introduces several significant protocol improvements, including Enshrined Proposer-Builder Separation (ePBS) and Block-Level Access Lists.
Glamsterdam also includes gas repricing changes aimed at supporting a lower limit of roughly 200 million gas, alongside substantial increases to Ethereum's contract size limits.
Under the proposed changes, the maximum contract size would increase from 24 KiB to 64 KiB, while the maximum initcode size would rise from 48 KiB to 128 KiB.
Developers and Wallet Providers May Need Updates
The changes could have consequences beyond Ethereum's core protocol.
The team warned that wallets, indexers, gas estimators and other infrastructure that depend on hardcoded maximum gas limits could be affected by Glamsterdam and may require software updates.
With Platåberget now live, Ethereum is entering an important testing phase for Glamsterdam. The coming months should provide developers with valuable data on how these major protocol changes perform before they are introduced to Ethereum’s main network.
The key milestone now: August 20, when Glamsterdam is scheduled to activate on the Platåberget testnet.
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