- Apple Intelligence is enabled by default: Users will now have automatic access to the features of IA after updating to iOS 18.3.
- Improvements in Apple Intelligence: Includes identification of plants and animals, as well as creation of events from images.
- Bug fixes and adjustments: Troubleshooting calculator, notification summaries, and other systems.
- New customization options: Exclusive wallpapers and visual improvements to camera settings and other elements.
Apple has officially released iOS 18.3, the latest update to its operating system for iPhoneOffering new features, Key improvements to the user experience and bug fixes. This version is now available for download on all supported devices.
Although it does not introduce completely revolutionary changes, iOS 18.3 is characterized by adjustments small but significant in areas like Apple Intelligence, the calculator and the user interface, as well as entering new customization optionsBelow, we explore in detail all the new features that this update brings.
Apple Intelligence: What's New and Automatic Activation

Apple Intelligence is now automatically activated on compatible iPhones after installing iOS 18.3. With this functionality, users can take advantage of advanced tools Artificial Intelligence, such as AI-generated notification summaries, predictive analytics and the identification of plants and animals using the camera. However, those who prefer not to use these functions can manually disable them in the system settings.
In addition to these features, the ability to Create calendar events directly from imagesFor example, simply point the camera at a poster or brochure and the system will recognize the information and add it automatically.
Improved notification summaries

Apple has made major changes to the notification summaries created by Apple Intelligence. In this release, they are no longer available for news and entertainment apps due to bugs reported in previous releases. However, summaries are now more customizable and have new options to activate or deactivate them directly from the lock screen.
In addition, these summaries are presented in italics to clearly differentiate them from the normal notifications, improving the visual experience.
Improvements to the calculator and the 'Home' app
The Calculator app has recovered a feature requested by many users: the ability to repeat mathematical operations by pressing the equal button. This is a small tweak that greatly improves usability and speeds up complex calculations.
On the other hand, the app Casa now offers support for smart cleaning devices, such as robot vacuum cleaners, integrating them into the ecosystem of HomeKit. Users can set up routines, schedule cleanings and control them via commands voice with Siri.
Personalization and visual adjustments

iOS 18.3 also brings a new wallpaper designed to commemorate Racial Unity Day 2025. This wallpaper, which follows Apple's tradition of creating exclusive designs, features bold colors and minimalist shapes. In addition, minor visual tweaks have been made to the interface, such as the introduction of a Camera settings button more consistent with the dark mode.
Bug fixes and security improvements

As with every update, Apple has included multiple bug fixes and security patches to improve stability and protect users from potential vulnerabilities. Issues addressed include:
- The keyboard no longer disappears when making typed requests to Siri.
- Fixed an issue where Apple Watch screenshots would not appear in the Photos app on iPhone.
- Audio playback in Apple Music now correctly pauses when you close the app.
Compatibility and availability
This update is available for all models that support iOS 18, from the iPhone XS to newer lines like the iPhone 16. However, some Apple Intelligence-specific features, such as plant and animal identification, are only available for the iPhone 15 Pro, 15 Pro Max, and the iPhone 16 line.
Users can install this update from Settings> General> Software updateIt is advisable to carry out a backup before proceeding with the installation to avoid possible inconveniences.
iOS 18.3 is presented as an intermediate update that, without disruptive innovations, improves key aspects of the user experience. Adjustments to Apple Intelligence, bug fixes, and new customization options make it worth installing, both for functionality and security.
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