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Good that this message has below the information of hardware affected.
Since bugs are clearly not the same in different setups, the more precisely the hardware and components are mentioned in the post, the more useful that info is for other readers.
Unfortunately many people ignore such a clear fact.
ALWAYS include YOUR HARDWARE either below or inside the post TOGETHER WITH THE BUG, PLEASE!
Ed
Hardware is in my signature... After 10.11.2 update wifi is dropping like crazy, it's not the wifi router, because iPhone 6+ is not dropping wifi at all, it's clearly OSX.