Dear partners and node operators,

Mocha will upgrade to app version 9 at block height 11655990, estimated to activate at Jun 5, 2026 08:19:37 UTC.

Please make sure you are running the v9-compatible binary before the activation height:

• celestia-app: v9.0.1-mocha

You can verify the upcoming upgrade height with:

celestia-appd query signal upgrade

Track the activation block: https://www.mintscan.io/celestia-testnet/block/11655990

Thank you,

Celestia Foundation