MS releases KB 4476976, a test Win10 1809 cumulative update, to the Insider Preview Ring. Bravo!

It’s time to install the October Windows and Office patches — and maybe tweak your settings

If Microsoft’s patchers keep it up, folks might start to think that they know what they’re doing.

Last night we saw the release of KB 4476976, which is a bug-fixing patch for Win10 version 1809. The fix itself isn’t remarkable (more about that later). What’s amazing is the delivery mechanism.

Once again, Microsoft is making use of the Windows Insider Program Release Preview Ring in the way it was originally intended — to release test versions of cumulative updates, before they head out to the general populace.

Interesting concept. It’s called “testing,” I believe. Demonstrably, Microsoft has had problems in that department.

Microsoft first used the Release Preview Ring correctly back in November. Back then, we saw a cumulative update for Win10 version 1809 head into the Release Preview Ring for testing, before it was pushed out for people to install. 

Now, it appears as if those who want to test Win10 Cumulative Updates — say, software manufacturers that want to check for compatibility, or hardware driver writers who want to make sure the latest Win10 patch doesn’t freeze their systems — can subscribe to the Windows Insider Release Preview Ring, and put the pending new patch through the wringer.

And they can do all of that before the Cumulative Update gets pushed out as an untested “C Week” or “D Week” patch.

That’s the way the Founding Mothers intended. Microsoft’s official Insider Program overview documentation says: