MacworldTwo days after the release of iOS 18.4, Apple has begun the iOS 18.5 beta testing cycle. The first developer release landed on April 2, and we expect a wide release in May (or possibly late April).The last few iOS versions had their x.5 releases in May, with only minor features and changes, and we expect the same this year, especially now that the anticipated new Siri has been delayed.iOS 18.5: New featuresWe havent yet discovered any new features in the iOS 18.5 beta, but well update this section as we and the testing community uncover them. However, with the big Siri enhancements pushed back out of the iOS 18 update cycle and the iOS 19 beta starting at WWDC in June, we dont expect much in the way of significant new featuresjust a few touch-ups, bug fixes, and security enhancements.iOS 18.5: How to install the public betaIf you want to be among the first to test iOS 18.5, you can sign up for the public beta test. The process for installing a beta has changed in iOS 16.4. Heres how the new process works now:Click Sign Up on the Apple Beta page and register with your Apple ID.Log in to the Beta Software Program.Click Enroll your iOS device.Open the Settings app, tap General, then Software Update.In the Beta Updates section, select the iOS Public Beta.It may take a few moments after registering for the beta option to appear in Software Update.iOS 18.5: How to install the developer betaYoull need to be registered as an Apple developer. Beginning with iOS 18.5, you dont need to be in the $99 per year developer program to access the developer beta. A free developer account will do. You can get one via Xcode or the Apple Developer app in iOS. Heres how to do it via the Apple Developer app:Download the Apple Developer App from the App Store.Open the app.Tap on Account.Sign in using your usual Apple ID.Registered developers can choose to get the Public Beta instead by selecting iOS Public Beta in the Software Update screen. It may take a little time after registering as a developer for the option to appear in Software Updates.Find out everything you need to know about iOS 18 in our iOS 18 superguide.