[Standard] Monad Testnet Upgrade to v0.14.0

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.

Posted Apr 03, 2026 - 04:00 UTC

In progress

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

Posted Apr 03, 2026 - 00:00 UTC

Scheduled

We are updating our Monad Testnet infrastructure to Monad v0.14.0. During the maintenance window, brief interruptions to RPC availability may occur.

RPC / API Changes:
eth_fillTransaction - added New endpoint that returns a fully populated transaction object (gas, nonce, fees) without signing. Handles EIP-2930, rejects blob-style requests, preserves sufficient user-provided maxFeePerGas.
eth_subscribe (newHeads) - modified WebSocket newHeads notifications now emit on proposed blocks instead of voted blocks, reducing notification latency.
eth_subscribe (logs) - modified WebSocket logs notifications now emit on proposed blocks instead of voted blocks, reducing notification latency.
eth_getLogs - modified Fixed block tag handling that was previously broken. Ref: monad-bft PR #2804.
eth_getTransactionReceipt - (and related receipt queries) modified Receipts now served from chainstate buffer at Proposed time, eliminating ~400ms trie lookup latency present in v0.13.0.

Full release notes:

https://github.com/monad-xyz/monad/releases/tag/v0.14.0

Posted Apr 01, 2026 - 17:02 UTC

This scheduled maintenance affected: Monad (Testnet — JSON-RPC API, Testnet — Websockets API, Testnet — Streams, Testnet — Webhooks, Mainnet - JSON-RPC API, Mainnet - Streams, Mainnet - Websockets API, Mainnet - Webhooks).