: Many older functional safety projects (up to SIL3 standardizations) were qualified explicitly on the toolchain ecosystem around v5.24 and v5.25. Altering the IDE or compiler version can break compliance parameters and require expensive recertification.
Visit the Keil Product Downloads page and select MDK-Arm . You will be prompted to enter your license credentials to access older installers. mdkarm version 525 download link
Lists an offline setup for MDK-ARM 5.25 , though users should exercise caution with non-official mirrors. Installation Highlights : Many older functional safety projects (up to