Feature Pack Stack (FPS),Support Package Stack (SPS)

SAP delivers updates to its core applications in the form of full versions, enhancement packs and support packs.                      Feature Pack Stack (FPS) – These are enhancement updates that introduce new functionalities or improvements to an SAP product version. They are released periodically between major SAP versions.These stacks are typically applied to SAP S/4HANA and other SAP solutions to keep them updated without a full version upgrade.

Support Package Stack (SPS) – These are collections of bug fixes, security patches, and minor updates that ensure system stability and performance. Unlike FPS, they do not introduce new features.