SUSE and IBM have partnered for 20 years to bring Linux to mainframes. Key events include the first release of SUSE Linux on Z in 2000 and certifying SAP on SLES for Z in 2002. Recent developments include KVM support in 2017, crypto enhancements in 2019, and the release of SLES for Z/L1 15 which features security, Kubernetes, and cloud technologies. SUSE aims to run containers on Z using Kubernetes and optimize cloud platforms like Cloud Foundry for mainframes.