iOS 18.1 brings these improvements and bug fixes

Apple is sending iOS 18.1 via over-the-air (OTA) update while Apple Intelligence is limited to a few models, some of which can be used by all iOS 18 devices.

Other than new features, the update includes improvements and bug fixes:

• Control Center has new options to add connectivity controls individually and reset your configuration.
• RCS Business Messaging lets you connect with businesses over RCS (requires carrier support).
• App Store search lets you use natural language to find what you’re looking for more easily.
• Game Center friend invites can be sent directly from the Contacts app and Friend Suggestions, and receivers can see the invites in the inbox in Settings.
• Fixes an issue in Podcasts where unplayed episodes are marked as played.
• Fixes an issue where videos recorded at 4K 60 while the device is warm could experience stutter while scrubbing the video playback in Photos.
• Fixes an issue where digital car keys may not unlock or start a vehicle with passive entry after restoring from a backup or transferring directly from another iPhone.
• Fixes an issue where iPhone 16 or iPhone 16 Pro models may unexpectedly restart.

You can download the latest software update for your iPhone via Settings > General > Software update and follow the on-screen instructions.