No active development is happening in this repository. This repository is just a mirror of the CMSIS and HAL files for STM32 microcontrollers. These files have been copied from the STM32Cube packages as published by STMicroelectronics and the files have been left untouched.
This means that any pull requests on this repository will be ignored. However, if you notice that there is a newer version of one of the STM32Cube package available, please send a message so that these packages can be updated as soon as possible.