For a successful migration to CMSIS v6, you will need to install the following packs on your system.
The ARM.CMSIS.5.x.x pack has been broken up into three different packs that need to be installed to enable migration to CMSIS v6:
The Keil.ARM_Compiler pack has been deprecated and its content has moved into two packs that need to be installed to migrate to CMSIS v6:
The pack versions are minimum versions.