[Urgent] Celestia - Mocha Testnet - Upgrade to celestia-app v9.0.1-mocha / celestia-node v0.31.0-mocha

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.
Posted Jun 03, 2026 - 05:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jun 03, 2026 - 01:00 UTC

Scheduled

We are upgrading our Celestia Mocha Testnet infrastructure to celestia-app v9.0.1-mocha and celestia-node v0.31.0-mocha.

This is a consensus-breaking v9 release that reduces block time from 6 seconds to 3 seconds. Activation occurs after 5/6 voting power has signaled for v9.
The release also speeds up block sync by defaulting verify_data to false, honors min-retain-blocks below the evidence window, and deprecates the celestia-appd update-config command.

During the maintenance window, users may experience intermittent disruptions to RPC availability as nodes are rotated through the upgrade process.

RPC Changes:
Block time — produced blocks now arrive at ~3 second cadence instead of ~6 seconds after v9 activates on the Mocha network. Users polling for new blocks may want to adjust polling intervals; subscription-based consumers will receive blocks at the higher rate without code changes.

Release: https://github.com/celestiaorg/celestia-app/releases/tag/v9.0.1-mocha
Posted Jun 02, 2026 - 16:20 UTC
This scheduled maintenance affected: Celestia (Mocha Testnet — Tendermint JSON-RPC/REST API).