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Technical Moderator
February 25, 2026
StickyQuestion

STM32CubeCLT 1.21.0 released

  • February 25, 2026
  • 0 replies
  • 414 views

We are pleased to announce that STM32CubeCLT 1.21.0 release is available.

What is new in 1.21.0:

Maintenance of the previous version:

  • Updated in accordance with STM32CubeIDE v2.1.0
  • Update of Clang/LLVM toolchain
  • Update of GCC to GCC 14
  • Update of STM32CubeProgrammer to version 2.22.0
  • Update of ST-LINK GDB server to version 7.13.0
  • Update of JRE™ to version 21.0.9+10
  • Update of STARM-Clang to version 21.1.1
  • Support for Apple® Silicon with ARM64 architecture

Main fixed issues in 1.21.0:

No fixed issue to report. 

Know problems and limitations in 1.21.0:

The user must specify the path of STM32CubeProgrammer/bin as argument when executing STLINK_gdbserver as shown in the example below:

ST-LINK_gdbserver.exe -cp /c/ST/STM32CubeCLT/STM32CubeCLT/STM32CubeProgrammer/bin

How to get STM32CubeCLT 1.21.0:

 

 

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