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Associate
September 22, 2026
Solved

Support of latest Arm GNU Toolchain (15.3.1)

Hello,
I would like to know when you plan to align your gnu-tools-for-stm32 with Arm GNU Toolchain (15.3.rel1)?
Your toolchain is quite old.
Or is there a way to use Arm GNU Toolchain (15.3.rel1) instead?
It blocks me from moving from CLion (Arm GNU Toolchain 15.3) to STM32CubeIDE for Visual Studio Code.

 

Best regards,

Endriu

vincent_grenetBest answer
ST Employee
September 23, 2026

​@EndriuT 
The introduction of GCC 15 is planned as part of the roadmap. If the content that is currently under validation progresses as usual, the update should occur at the end of November or the beginning of December.

Same for LLVM update see STM32Cube clangd: please update the bundled clang-format (LLVM 21 -> 23) | Community

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

3 replies

Cartu38 OpenDev
Graduate II
September 23, 2026

​@EndriuT 

Currently 14.3.1 is suported what is not so old.

For my own understanding what do you expect as extra out of 15.3 version ? Out of my head i was anticipating 14.3.1->15.3 move and ... reverse leading to no pain / no revolution.

EndriuTAuthor
Associate
September 23, 2026

​@Cartu38 OpenDev Mainly C++ ranges and couple of other C++ features.

Any info about upgrading to 15.3.1?

Best

vincent_grenetBest answer
ST Employee
September 23, 2026

​@EndriuT 
The introduction of GCC 15 is planned as part of the roadmap. If the content that is currently under validation progresses as usual, the update should occur at the end of November or the beginning of December.

Same for LLVM update see STM32Cube clangd: please update the bundled clang-format (LLVM 21 -> 23) | Community

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.