Today, Apple released a round of minor updates for all of its supported devices, including iOS 12.4, macOS 10.14.6, watchOS 5.3, and tvOS 12.4. As it turns out though, some older devices - devices that aren't supported by the latest updates anymore - are getting some love as well.
According to MacRumors, iOS 9.3.6 and iOS 10.3.4 are now available. The report states that the former is only available for cellular models of the iPad mini, iPad 2, and iPad 3, all devices that used an A5 processor or a variant of it. It's worth noting that the third-generation Apple TV also got an update today, as that also included an A5 chipset.
As for iOS 10.3.4, that was made available for the cellular variant of the iPad 4 and the iPhone 5. Notable devices left out would be the iPhone 4s, which had an A5, and the iPhone 5c, which was nearly identical to the iPhone 5.
According to the report, the new updates fix an issue with GPS that could lead to the date and time being incorrect. As you'd expect, you can download the updates by heading to Settings -> General -> Software Update.