Not sure if this is a bug or intended, but, as a xenophobic, materialist empire, I can no longer give synths full citizenship, even with all synth tech researched and citizen rights policy selected. The game simply says that they are "too alien" despite being handmade by my empire. This was not the case pre-update. My xenophobe-materialist-pacifist run is kinda kneecapped as a result of this, as I also can't disable migration controls for synths - the option just isn't there - which is giving my egalitarian faction a -10 percent approval modifier as well as a -10 happiness for all synth pops as I can only give them residence.