We are upgrading our Ethereum Sepolia infrastructure to Geth v1.17.6 on 2026-09-30. This maintenance release delivers performance improvements to block processing and initial sync, and includes critical preparation for the Amsterdam hard fork scheduled on Sepolia for October 6, 2026.
Brief interruptions to RPC availability may occur.
RPC Changes: - eth_getLogs — Now rejects ranges where toBlock is before fromBlock; requests with invalid block ranges will return an error. - eth_getHeaderByNumber — Returns null for pending and unresolvable tags instead of attempting resolution. - eth_simulateV1 — Post-merge difficulty overrides are now treated as no-op; difficulty parameters no longer affect simulation outcomes. - eth_createAccessList — Removed per-authorization gas guard; gas accounting behavior has been simplified. - debug_traceCall — Block parameter is now optional; omitting it will use the latest block by default.