iOS 10.1 displays warning messages for old apps.
Back in 2013, Apple presented its first iPhone with a 64-bit processor – iPhone 5s. From day one, Apple encouraged all iOS developers to update their apps and add support for the new processors, eventually making the 64-bit support mandatory in early 2015 as the majority of the smartphones in active use back then were already powered by 64-bit chips.
In September, with the announcement of the iOS 10, Apple informed the developers that apps without support for 64-bit would be removed from the App Store by the end of the year.
The company also added an alert message in iOS 10 beta to inform users who are still using those old 32-bit apps. The message in the beta version of iOS warned that the app “may affect the overall performance”, but the alert was not included in the official version of iOS 10.
Now, as Apple have sent reminders to all app developers to urge them update the apps or they will be removed, users on iOS 10.1 have once again started to see a similar warning message for missing app compatibility. In the current iOS 10.1 beta 2, Apple warns you that certain apps “may slow down your iPhone” and “the developer needs to update it to improve its compatibility”.
Apple is expected to start removing apps from the Store if they do not meet the requirement for 64-bit compatibility.
Source: Mac Rumors