Apple has today released iOS 18.3.1, iPadOS 18.3.1, macOS Sequoia 15.3.1, watchOS 11.3.1; and iPadOS 17.7.5 for iPads that cannot run iPadOS 18.
According to Apple's release notes, the iOS 18.3.1 update contains important bug fixes and security updates:
This update provides important bug fixes and security updates and is recommended for all users.
For information on the security content of Apple software updates, please visit this website:…