What the update does is unknown.
Apple is releasing updated versions of its current software even as it prepares to debut watchOS 10 at the WWDC 2023 event on June 5. The most recent is watchOS 9.5.1, a comparatively small update that is currently accessible for download.
All devices that support watchOS 9 may receive the latest watchOS 9.5.1 upgrade for free. According to Apple, the update “includes improvements and bug fixes for your Apple Watch,” but that is all that has been stated thus far.
This suggests that there may be security risks at hand, which is one reason you should think about upgrading your Apple Watch now, even if there are probably no new features for people to trial.
Security is crucial.
The fact that Apple hasn’t really released release notes for this update and has just made general statements about enhancements and repairs may indicate that Apple isn’t yet prepared to specify exactly what has been corrected.
Prior to Apple’s announcement of the watchOS 10 update the following week, this watchOS 9.5.1 update is probably the final. Because that upgrade is reportedly the greatest modification to the Apple Watch software since its introduction in 2015.
Sadly, watchOS 10 won’t be available to the general public until late August or early September, maybe along with new Apple Watch hardware improvements.
Apple will also reveal iOS 17, iPadOS 17, macOS 14, and tvOS 17 during WWDC. The Reality Pro AR/VR headset is anticipated to join the 15-inch MacBook Air as new hardware. The MacBook Air may also be paired with more Mac hardware, but it isn’t yet known what that hardware will be, according to recent rumours. It’s likely that the Mac Pro may finally receive an Apple silicon upgrade, although we might not know for sure until June 5.