Since Keil MDK 5.37, the Version 5 compiler is no longer included in the standard installer and must be downloaded separately. Official Download Link:
: Certain legacy software packs and RTOS kernels require Armcc for native compilation. Step-by-Step Download Instructions 1. Access the Official Keil Website keil arm compiler version 5 download
The most stable and final major release of this toolchain is . Since Keil MDK 5