Originally published at: watchOS 9.6.1 Fixes Bug Affecting Parkinson's Disease Apps - TidBITS
Apple has updated watchOS 9 to address a highly targeted bug associated with access to the Movement Disorder APIs. Unless you use an affected app, install this update only when convenient.
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Is it my imagination or does this update cause the battery to drain quickly? I updated last night before I went to bed, with a full charge, and was surprised to see the battery level had dropped more than 25% of its charge. It doesn’t usually drop this far when I’m sleeping.
watchOS updates often require that internal caches and indexes be refreshed, so it’s not unusual for battery life to get worse for a day or two after updating. If it continues after that, some troubleshooting would be warranted.
Thanks. I’ll keep an eye on it to see if it improves.
If you see dramatic battery drain like that on an Apple Watch, I always suggest simply powering off and power on again; you may also want to do the same with the iPhone. Most times that solves the issue.
As for this version: since I’m not affected by the issue, I’m not rushing to install the update. Because the watch is almost always on my wrist, upgrading requires me to do so manually, so I’ll likely wait until the next version. That said: I’d be really surprised if a minor bug fix caused significant battery drain like this.
Does anyone use/have experience with any app that actually uses the Movement Disorder API’s?
I would be fascinated to hear about any experience with them and how they work/what they do, for a loved one.
Many thanks, all.