The upcoming changes to Redis Cloud's security practices involve replacing existing TLS certificates with new short-lived certificates issued by the publicly trusted GlobalSign Certificate Authority. This change aims to improve security, as the current self-signed certificates are not verified by a third-party authority. The transition will affect different tiers of Redis Cloud subscriptions at varying dates, depending on when their subscriptions were provisioned. Affected users should ensure that their Redis clients trust the new GlobalSign certificates and update their client's certificate store if necessary. Users can inspect the provided public certificate bundle to verify the certificates' authenticity and obtain any necessary updates for their Redis clients.