# Ethereum Fusaka Upgrade Timeline On Testnets  

> Ethereum's next upgrade, Fusaka, is tentatively scheduled to activate across Holesky, Sepolia, and Hoodi testnets starting in late September.

**Published by:** [ETH Daily](https://ethdaily.io/)
**Published on:** 2025-09-12
**Categories:** news, 2025, september2025
**URL:** https://ethdaily.io/781

## Content

Quick TakeTentative schedule for Fusaka upgrade.Reth postmortem on recent bug.Scroll pauses new gov proposals.BitMine buys 46,255 more ETH.Ethereum Fusaka Upgrade Timeline On TestnetsListen to this episode from ETH Daily - Ethereum News on Spotify. Developers tentatively schedule the Fusaka upgrade on testnets. Reth releases a postmortem on its recent bug. Scroll pauses new governance proposals. And BitMine buys an additional 46,255 ETH. Read more: https://ethdaily.io/781 Disclaimer: Content is for informational purposes only, not endorsement or investment advice.https://spotify.comFusaka Upgrade Timeline On Testnets During this week’s ACDE Call #220, Ethereum core developers discussed a tentative timeline for activating Ethereum’s Fusaka upgrade across testnets. Developers agreed to begin with the Holesky testnet, despite its scheduled deprecation in the coming months. Holesky’s infrastructure will be shut down two weeks after the Fusaka upgrade finalizes. Developers tentatively plan to release updated testnet client versions by September 22, activate Fusaka on Holesky during the week of September 29, proceed with the Sepolia fork in the week of October 13, and complete the rollout on Hoodi two weeks later in the week of October 27. The proposed schedule will be finalized once fork block times are confirmed during the next ACD call. Fusaka is Ethereum’s next upgrade, slated for Q4 2025 that will introduce scaling improvements through PeerDAS, an enhancement that allows nodes to verify blob data availability without downloading the entire dataset, increasing data capacity and significantly reducing costs for Ethereum rollups.Reth State Root Mismatch PostmortemThe Reth team released a postmortem on last week’s incident that caused some Reth nodes to stall due to a state root mismatch. The issue stemmed from a bug in Reth’s trie update handling, which introduced corrupted storage data during a reorg nearly 200k blocks earlier. The problem only surfaced until block 23272427. A fix and database repair tool were shipped in Reth v1.7.0. The bug was limited to Ethereum mainnet Reth nodes and did not affect OP Reth or nodes on other networks.Scroll Pauses Governance ProposalsScroll, an EVM-equivalent ZK Rollup, announced a pause on new governance proposals within its DAO while it works on redesigning its governance framework. According to delegate Olimpio, Scroll DAO leadership resigned earlier this week. The team will move forward with all previously approved governance proposals. The Scroll team stated that the new governance model aims to enhance efficiency, clarity, and alignment. In response to the uncertainty, the Aave Chan Initiative (ACI) submitted a proposal to adjust risk parameters for assets on the Aave V3 Scroll instance, including raising reserve factors to 50%. BitMine Buys 46,255 ETHBitMine Immersion Technologies Inc. has acquired an additional 46,255 ETH, boosting its total Ethereum holdings to more than $9 billion. The company now owns 2.07 million ETH, representing nearly 2% of the entire circulating supply of ETH. BitMine remains the world’s largest corporate holder of ETH, with a treasury more than twice the size of SharpLink Gaming, who ranks second. BitMine’s stock price has climbed 4 % in the past day.Other NewsACDE #220 minutes | highlightsCurrencyCoin takes PG 1% pledgeethOS ships dGEN1Safe supports ENSMTD with Preston Van LoonZKsync leads RWAs on L2Coinbase vs SEC FOIA updateKakarot launches FibRaceU.S. Treasury mixer ruleLemonade integrates Self ProtocolEtherisc treasury allocationsDisclaimer: Content is for informational purposes only, not endorsement or investment advice. The accuracy of information is not guaranteed.

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