Hi, I have installed latest MDK 5.23 and exploring its advantages and new features. It is giving compiler 6 and 6.7, but when I am building my project that I have made in MDK 4 with compiler 5, it is showing error: unknown type name '__STATIC_INLINE'. And this problem is not only with my projects, same error message is showing when I am building the ARM's provided examples. Do anyone have faced this issue when migrating from compiler 5 to 6, and have resolved it ?