Apple's latest iOS 10.3 software update has new a tool that helps users find out which apps will be obsolete with company's next major iOS upgrade.

Last month Apple rolled out iOS 10.3 update for iPhone 5 and later, iPad 4 and later and iPod touch 6th generation and later with several improvements and changes. These includes the ability to locate AirPods using Find My iPhone, using Siri with payment, ride booking and automaker apps.

The apps that are not updated since 2015 are likely to be rendered obsolete in iOS 11. iPhone 5s, shipped in 2013, was the first 64-bit handset and the apps that were created since then had the option to run in 64-bit mode. Since 2015 the apps as well as the updates had to run in 64-bit mode in order to secure approval from Apple.

There is a menu item in the latest iOS 10.3, which could be found under Settings>> General>> About>> Applications. The menu will show a list of installed apps that don't run in 64-bit mode, as spotted by the Guardian.

"The apps may slow down your iPhone and will not work with future version of iOS if they are not updated," Apple now warns users. "If no update is available, contact the app developer for more information."

Last month app research company Sensor Tower figured out Apple would be dropping support for about 187,000 apps or 8% of the total 2.4 million apps on the App Store. Along with that a significant number of apps developed after September 2013 will not be shipped with 64-bit mode.

However, the company is yet to confirm that iOS 11 would drop support for the 32-bit apps. The update is expected to be rolled out in September this year. Apple is likely to show off the first beta of iOS 11 at its upcoming WWDC annual developers' conference in June.