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Aziz BRIGUI
ST Technical Moderator
February 24, 2026
StickyQuestion

STM32CubeProgrammer v2.22 released

We are pleased to announce that STM32CubeProgrammer 2.22 is available

What is new in 2.22:

Support for the STM32U3 microcontrollers with 2 Mbytes of flash memory:

  • Internal memory programming through debug and bootloader interfaces
  • Option bytes programming through debug and bootloader interfaces
  • OTP programming through debug and bootloader interfaces
  • Core register programming through debug interfaces
  • Automatic mode
  • Serial Wire Viewer
  • Register viewer
  • Firmware encryption/signing
  • RDP regression with password
  • SFI through debug and bootloader interfaces (USB and UART)

Support for STM32C5 series microcontrollers:

  • Internal memory programming through debug and bootloader interfaces
  • Option bytes programming through debug and bootloader interfaces
  • OTP programming through debug and bootloader interfaces
  • Core register programming through debug interfaces
  • Automatic mode
  • Register viewer
  • Firmware encryption/signing
  • RDP regression with password

Support for STM32WBA2xxx microcontrollers:

  • Internal memory programming through debug and bootloader interfaces
  • Option bytes programming through debug and bootloader interfaces
  • OTP programming through debug and bootloader interfaces
  • Core register programming through debug interfaces
  • External memory programming through debug interfaces
  • Automatic mode
  • Serial Wire Viewer
  • Register viewer
  • Firmware encryption/signing
  • RDP regression with password

Support for the STM32H5 microcontrollers with 4 Mbytes of flash memory:

  • Internal memory programming through debug and bootloader interfaces
  • Option bytes programming through debug and bootloader interfaces
  • OTP programming through debug and bootloader interfaces
  • Core register programming through debug interfaces
  • External memory programming through debug interfaces
  • Automatic mode
  • Serial Wire Viewer
  • Register viewer
  • Firmware encryption/signing
  • OBkey generation/provisioning
  • Certificate generation
  • Debug authentication
  • SFI through debug and bootloader interfaces (USB and UART)
  • License generation
  • Secure Manager install

Debug authentication on Windows® 32 bits

Export of MCU memory map:

  • Simplified the memory map dump (option bytes, OTP, internal/external flash memory) in HEX output file format

Support for OBKey generation and signing with SHA‑384 and ECDSA‑P384 in STM32 Trusted Package Creator:

  • Added the support for SHA-384 and ECDSA-P384 encryption types

Main fixed issues in 2.22:

Refer to the STM32CubeProgrammer wiki at:

STM32CubeProgrammer errata 2.22.x - stm32mcu

Known problems and limitations in 2.22:

Refer to the STM32CubeProgrammer wiki at:

STM32CubeProgrammer errata 2.22.x - stm32mcu

How to get STM32CubeProgrammer 2.22:

  • Under this link
  • Or update your current installation of STM32CubeProgrammer using: Help > Software update
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