On the other hand, 20.0.0 KSP support will continue until August 2024.
There is no impact for on-premise Deep Security users until August, but it is required to upgrade Deep Security Manager (DSM) version to February release (20.0.883) or higher to get 20.0.1 DSA/KSP.
Reference: For details or impact matrix for on-premise Deep Security or Cloud One - Endpoint and Workload Security users, please refer to the Preparedness of DSM/DSA for Supporting 20.0.1 Linux Kernel Support Package (KSP) KB article.