X-CUBE-CLASSB version 2.2.0 supports the STM32L0, STM32L1, STM32L4, STM32L4+, STM32F0, STM32F1, STM32F2, STM32F3, STM32F4, and STM32F7
X-CUBE-CLASSB version 2.3.0 supports STM32G0, STM32G4, STM32WB, and STM32H7
X-CUBE-CLASSB version 2.4.0 supports the STM32L5 Series
X-CUBE-CLASSB version 3.0.0 extends the package for dual-core, STM32H7x7
X-CUBE-CLASSB version 4.0.0 support STM32U5