There is a new recommended update for my W8.1 today, Quote from KB2976978

This update will help Microsoft and its partners ensure compatibility for customers who are seeking to install the latest Windows operating system.
My windows 7 system also had a new update today, the many times released KB2952664

Neither W8.1, nor W7 will be updated to Windows 10. As such, the update joins the other W10 related update:

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That did not stop MS to change how the "Windows Updates" panel looks, sneaked in the W10 coming soon message:

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I'll disable Windows Update for couple of weeks, don't want W10 dropped on it by "accident"...