Apple released another update for its Apple Watch operating system watchOS on Tuesday evening. According to the company, version 9.6.1 is intended to fix bugs related to the reading of an API for transaction data used by certain app categories.
A small but important bug fix
This is the so-called Movement Disorder API, which is used by scientific applications, among other things, to record muscle tremors and other symptoms associated with diseases such as Parkinson’s. With the previous version watchOS 9.6, a bug was introduced that prevented data transfer or made it unreliable.
Although such applications have comparatively few users, they should always work reliably – it is correspondingly commendable that Apple reacted here. There don’t seem to be any other changes in the update, which has the build number 20U80.
According to Apple, security-related fixes are also not included in the update: “This update has no published CVE entries,” the company writes. With watchOS 9.6, things looked very different: it brought numerous patched vulnerabilities – over a dozen, including zero-day bugs that had already been exploited (albeit apparently on other platforms).
Sport tracking issue
As usual, watchOS 9.6.1 is imported either via the corresponding menu item on the Apple Watch itself or via the Watch app on the iPhone. To install, the computer clock must be placed on the charger and have a battery level of at least 50 percent.
Previous versions of watchOS 9 had reported heart rate issues, particularly with the Apple Watch Ultra. It is unclear whether Apple has since corrected this or whether the error persists – the company has not given any specific information about a bug fix in this area. However, not all devices are affected.
The error pattern: The Ultra briefly displays the current heart rate when starting a workout, but then only shows a gray display. Sometimes the tracking works later, but then fails again in the meantime.
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