# Release Notes for STM32H5 SVD Copyright 2025 STMicroelectronics
V1.0 First release: adding support to STM32H5 devices (2M & 128K) V1.1 Clean up & Adding support for I2C3/I2C4 V1.2 Update support for GTZC1_TZSC registers for STM32H562/63/73 V1.3 GPIOC registers name correction for STM32H503/62/63/73 V1.4 Adding RNG_NSCR register for STM32H562/63/73 V1.5 Adding support to STM32H5 devices(512K) V1.6 Update in ADC/RCC and TIM registers for STM32H5 V1.7 Update in TIM12 registers for STM32H5 V1.8 Adding TIM17_OR1 register for H5 V1.9 Update in OCTOSPI register for STM32H562/H563/H573 and remove GPIOI from STM32H523/H533 For complete documentation on STM32 Microcontrollers visit www.st.com/STM32