Apple iOS 18.3 Update Now Live – Security Fixes, AI Changes & More!
With crucial security fixes, AI feature upgrades, and new notification tools, this is one you don’t want to miss.

Apple has officially launched iOS 18.3, and it’s not just another routine update. This version packs critical security patches, enhancements to Apple Intelligence, and some long-awaited quality-of-life improvements for iPhone users. If you haven’t updated yet, here’s why you should do it right now.
You can also read: What to Expect from iPhone 17: Redesigns, Performance, and More

Security First: 29 Vulnerabilities Fixed
One of the biggest reasons to install iOS 18.3 is security. This update fixes 29 vulnerabilities, including one that has already been actively exploited in real-world attacks.
- CoreMedia Vulnerability (CVE-2025-24085) – Malicious apps could elevate privileges and compromise your device.
- Kernel Flaws (CVE-2025-24107) – A malicious app could gain root privileges or execute code at the system level.
- WebKit Issues – Safari’s underlying engine was vulnerable to command injections and unauthorized remote code execution.
Cybersecurity experts strongly recommend updating immediately to avoid potential threats.
Apple Intelligence Gets a Boost
The AI revolution continues with iOS 18.3. This update brings major refinements to Apple Intelligence, the company’s in-house AI system. Key changes include:
- Apple Intelligence Enabled by Default – No more opting in! If you’re using an iPhone 15 or later, AI features will be activated automatically after updating.
- Visual Intelligence Upgrades – iPhone 16 users can now use their camera to identify plants and animals or instantly add events to their calendar from posters.
- Notification Summaries Get a Style Update – AI-powered notification summaries will now feature italicized text for better readability. Apple has also temporarily disabled summaries for news and entertainment apps.
You can also read: A Closer Look at Apple Intelligence: What Sets It Apart?

Other Apple iOS 18.3 Features Worth Noting
Beyond security and AI, iOS 18.3 introduces several practical enhancements:
- AirPlay Fixes – A bug that allowed remote attackers to cause unexpected crashes is now patched.
- Passkeys Update – Security upgrades now prevent unauthorized Bluetooth access.
- Safari Performance Boost – WebKit tweaks should improve browsing speed and stability.
Should You Update? Absolutely.
iOS 18.3 is available for iPhone XS and later, as well as newer iPads running iPadOS 18.3. The update is designed to enhance performance, tighten security, and streamline AI functionality.
To install it now, follow these steps:
- Go to Settings
- Tap General > Software Update
- Download and install iOS 18.3
If you own an iPhone 15 or later, be sure to check your AI settings after the update to customize your experience.
Final Thoughts: Why You Should Update Now
iOS 18.3 is more than just another software update—it’s a critical security patch with AI-powered improvements. Whether you’re concerned about cybersecurity threats or just want the latest Apple Intelligence features, updating now is the best move for your iPhone’s security and performance.
So, what are you waiting for? Update now and keep your device protected!
You can also read: Is Apple TV 18.2.1 Worth the Upgrade? Find Out Here
FAQs: Everything You Need to Know About iOS 18.3
What devices support iOS 18.3?
iOS 18.3 is available for iPhone XS and later models, including iPadOS 18.3 for iPad users. If you’re unsure whether your device is compatible, check your Settings > General > Software Update.
Is iOS 18.3 a major update?
While it doesn’t introduce new visual overhauls, iOS 18.3 is a critical security update with 29 vulnerability patches and AI enhancements. Updating ASAP is highly recommended.
How do I turn off Apple Intelligence?
Since Apple Intelligence is now enabled by default for iPhone 15 and later, you’ll need to manually disable it if you don’t want to use it. To do so: Go to Settings > Privacy & Security > Apple Intelligence and toggle it off.
Does iOS 18.3 improve battery life?
Apple has not listed specific battery life improvements, but performance optimizations in Safari and AirPlay could help reduce battery drain in some cases.
Stay tuned for more updates on GetJar!
About the Author

Alex Castellari | Editor
Alex is an animation enthusiast who loves RPG games, AI and technology. With a passion for storytelling, she enjoys sharing her insights on the latest trends and innovations.