Saponification as a process was required knowledge in the old syllabus as there was a specific syllabus dot point about knowing the method. The structure, action and uses is what the dot point states in the new syllabus. It's still a good idea though to have some knowledge about the process. You don't need to memorise like the full method probably but knowing the chemical equation for producing a soap or detergent would be to good to know as that could fall under the 'structure' aspect of that dot point
