Illinois has become the latest U.S. state to pull operating systems into the age verification pool. The bill imposes age check on "covered manufacturers," a category that lumps device makers, operating system providers, and app stores together. Colorado's SB26-051 and California's AB-1043 both rely on the same OS-level age signal setup; apps request it, and the device answers. Colorado's SB26-051 originally applied to every operating system and developer without exception. After several rounds of edits, the amended bill redefines "operating system provider" to exclude anyone distributing software under those same open license terms.