Ethereum Sepolia, Hoodi and Mainnet - Erigon Upgrade to v3.3.8

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.

Posted Feb 26, 2026 - 15:45 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Feb 26, 2026 - 11:45 UTC

Scheduled

We will be upgrading Ethereum Sepolia, Hoodi and Mainnet erigon nodes to the latest stable version (v3.3.8) to incorporate critical bug fixes and stability improvements.

https://github.com/erigontech/erigon/releases/tag/v3.3.8

RPC changes:
- `eth_getLogs` (breaking_behavior_change, `JSON-RPC`) - Added validation: max 4 topics, block hash cannot be combined with fromBlock/toBlock, block range cannot extend beyond head
- `eth_getBalance` (breaking_behavior_change, `JSON-RPC`) - Added execution check - returns error if block not executed
- `eth_getTransactionCount` (breaking_behavior_change, `JSON-RPC`) - Added execution check - returns error if block not executed
- `eth_getCode` (breaking_behavior_change, `JSON-RPC`) - Added execution check - returns error if block not executed
- `eth_getStorageAt` (breaking_behavior_change, `JSON-RPC`) - Added execution check + improved error handling with InvalidParamsError
- `eth_call` (breaking_behavior_change, `JSON-RPC`) - Added execution check - returns error if block not executed
- `eth_estimateGas` (breaking_behavior_change, `JSON-RPC`) - Added execution check - returns error if block not executed
- `eth_createAccessList` (breaking_behavior_change, `JSON-RPC`) - Added execution check - returns error if block not executed
- `DefaultFcuTimeout` (removed_constant) - Removed hardcoded 1s timeout, now configurable via flag

Posted Feb 26, 2026 - 11:43 UTC

This scheduled maintenance affected: Ethereum (Mainnet — JSON-RPC API, Mainnet — Websockets API, Sepolia — JSON-RPC API, Sepolia — Websockets API, Hoodi - JSON-RPC API, Hoodi - Websockets API).