According to Odaily Planet Daily, dYdX Ops SubDAO posted on the X platform that due to the deployment of the dYdX Chain v4.0 software upgrade, the network is expected to experience delays and potential downtime between 16:00 and 17:00 on April 8. dYdX Chain validators using tmkms or Horcrux need to update to the latest version of the corresponding tool before upgrading the block height. Previously, the dYdX community voted to pass a proposal to upgrade the dYdX Chain protocol software to version v4.0. This version upgrade will affect the protocol and network, including: adding x/authz modules, IBC withdrawal restrictions, conditional order improvements, Cosmos SDK v0.5 upgrades, etc.