Along with the release of iOS 11.2.5, today has also seen the releases of macOS High Sierra 10.13.3, watchOS 4.2.2 and tvOS 11.2.5.
According to MacRumors, today's macOS release focuses on security and under the hood improvements:
No major outward-facing changes were discovered in macOS High Sierra 10.13.3 during the beta testing period, but according to Apple's release notes, it brings security and feature improvements.
The update offers additional fixes for the Spectre and Meltdown vulnerabilities that were discovered and publicized in early January and initially fixed in macOS High Sierra 10.13.2.
We also know that the update fixes a bug that allowed the App Store menu in System Preferences to be unlocked with any password. Aside from those changes, Apple's release notes say that the update "addresses an issue that could cause Messages conversations to be temporarily listed out of order."
Our own testing of macOS 10.13.3 suggests that there are no accessibility-related changes, regressions or improvements.
According to MacRumors, the watchOS 4.2.2 update has “no major outward-facing changes” and . “According to Apple's release notes, the update includes improvements and bug fixes.”
MacRumors states that today's tvOS update is also minor; with a focus on bug fixes.
As we always stress, it is impossible for us to test all applications and use cases. Therefore, it is entirely possible that we have overlooked some changes, regressions or improvements in today's releases. With this in mind, we would greatly appreciate your help in ensuring that the information on this page is as complete and accurate as possible. If you spot any accessibility-related changes, regressions or improvements in any of these releases, please do let us know by adding a comment.
How to Update
macOS 10.13.3 is available via the updates tab in the Mac App Store.
watchOS 4.2.2 is available by going to the Watch app on your iPhone and navigating to General> Software Update. To install the update, your Watch must be connected to its charger and have at least 50% battery power.
To install tvOS 11.2.5, go to the Settings channel then look for the System section near the bottom. From here, look for Software Updates under Maintenance, then select Update Software and Download and Install.