According to @BullTheoryio, the Ethereum Fusaka upgrade will go live today and combines Osaka, Fulu, and PeerDAS, positioning it as a major network release relevant to traders. According to @BullTheoryio, the upgrade could spark ETH’s next supply crunch and is framed as a material change for ETH, with PeerDAS integration cited as a key catalyst for the shift in supply dynamics.

According to the source, a teaser highlights an upcoming Ethereum Fusaka upgrade for ETH but shares no EIP list or activation timeline in the provided excerpt. According to the Ethereum Foundation, Ethereum network upgrades are defined through accepted EIPs and communicated via AllCoreDevs and EF blog posts, with mainnet activation typically preceded by public testnet forks that traders can track for timing. According to the Ethereum Foundation, past upgrades such as Dencun on 2024-03-13 introduced EIP-4844 with a separate blob fee market that reduced Layer 2 data costs, and London on 2021-08-05 implemented EIP-1559 with a base fee burn, demonstrating that upgrade EIPs can materially change fee dynamics and on-chain costs. According to the Ethereum Foundation, the appearance of a finalized EIP set, public testnet upgrade dates, and client release candidates are the standard signals that precede mainnet upgrades and may imply changes to gas costs, throughput, or staking mechanics depending on the final EIPs.

According to the source, a Nov 9, 2025 social post referenced an article titled What is the Fusaka Upgrade? Ethereum’s Biggest Scaling Bet Yet, but it did not include verifiable primary documentation for traders to assess scope, timeline, or included EIPs (source: user-provided social media post on Nov 9, 2025). To avoid trading on unverified headlines, ETH traders should confirm any Fusaka claims against official Ethereum communications where network upgrades are announced and scheduled (source: Ethereum Foundation blog). Catalyst timing should be anchored to concrete milestones historically used for upgrades, including EF posts scheduling testnet and mainnet activation, client release tags across Geth, Nethermind, Prysm, and Teku, and AllCoreDevs updates confirming the final scope and inclusion lists (sources: Ethereum Foundation blog; Geth, Nethermind, Prysm, and Teku client release pages; Ethereum AllCoreDevs notes). Historically, scaling upgrades have only produced durable fee or throughput changes for users and L2s after EF-confirmed activation, as seen with Dencun’s EIP-4844 introducing data blobs that reduced L2 data costs post-activation rather than at rumor stage (sources: Ethereum Foundation blog; EIP-4844 specification in the Ethereum EIPs repository). Until official confirmation appears on these primary channels, repricing ETH or L2 tokens purely on the Fusaka headline carries elevated event risk with no validated timeline (sources: Ethereum Foundation blog; Ethereum AllCoreDevs notes).