iOS upgrade

iOS 9.3.6 was released on July 22, 2019, to address an issue that could impact GPS location performance and could cause the system date and time to be incorrect.[30] This update is available only for the iPhone 4S and cellular models of the iPad Mini (1st generation), iPad 2 (CDMA model), and iPad (3rd generation).[31] The GSM version of the iPad 2 is not compatible with iOS 9.3.6, as the chipset is not affected.[32]

No.

iOS 9.3.6 is available if (and only if) you have a cellular iPad.

The iPad mini can be upgraded to iOS 9.3.6

Well they never said if they have cellular or not