Unlike, say, AMD, Intel or Apple, ARM does not make or market CPUs to consumers. They design and market CPU IP to SOC makers. The road from inception to actual

Unlike, say, AMD, Intel or Apple, ARM does not make or market CPUs to consumers. They design and market CPU IP to SOC makers. The road from inception to actual product for a typical SOC is longer than a year, and from that it takes time for device manufacturers to actually put the SOCs into devices and sell them to you. This naturally means that it takes quite a lot of time for ARM cores to go from the time you first hear about them (when they are being marketed to SOC makers) to being as close to release as the point when you typically hear about other CPU cores (when they are being marketed to you).