[Standard] Hyperliquid - Mainnet - Upgrade to nanoreth nb-20260518

Scheduled Maintenance Report for Quicknode

Completed

Maintenance has been completed.

Posted May 19, 2026 - 09:01 UTC

In progress

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

Posted May 19, 2026 - 08:00 UTC

Scheduled

We are upgrading our Hyperliquid Mainnet nanoreth infrastructure to nb-20260518.

This release includes fixes for WebSocket subscription handling with the multiplex option, a fix for trace_block HL precompile setup, and improvements to block source startup retry behavior. During the maintenance window, customers may experience intermittent disruptions to RPC availability as nodes are rotated through the upgrade process.

RPC Changes:

trace_block — fixed HL precompile setup, resolving incorrect behavior when tracing blocks involving HL precompiles. WebSocket subscriptions — fixed subscription ID provider when using the multiplex option (?hl=true/false), aligning behavior with upstream reth.

Release: https://github.com/hl-archive-node/nanoreth/releases/tag/nb-20260518

Posted May 19, 2026 - 07:50 UTC

This scheduled maintenance affected: HyperLiquid (HyperEVM - JSON-RPC API, HyperEVM - Websockets API, HyperEVM - Streams, HyperEVM - Webhooks, HyperEVM-Testnet - JSON-RPC API).