Microsoft releases updates "C" and "D" for users clicking "Check for updates" in Windows Update. These people become ignorant beta testers. The C update for January 2019 is rare: Microsoft first tested it with Windows Insiders.
C and D updates are released in the third and fourth weeks of most months. They contain non-security fixes and are only installed for users who click the Check for Updates button in Windows Update. These people basically test the updates before the fixes are part of the next month's stable Patch Tuesday updates. These Patch Tuesday updates are referred to as "B" updates because the Patch Tuesday is in the second week of each month.
These C and D updates have previously caused problems. For example, a "D" update has recently caused blue screens on Microsoft's own Surface Book 2 hardware. Only people who clicked on the "Check for updates" button would have installed them and found the problem. Microsoft calls these people "searchers" and says that they are looking for more updates, but we believe that most users who click this button have no idea that they choose unstable updates.
But there is finally good news! As Woody Leonhard points out on AskWoody.com, this month's C update ̵
It's finally done. The first Win10 patch (to my knowledge) that was extensively tested in the Windows Insider Preview Ring – and I'd bet it's pretty stable.
… Put a glass of cheers. You may be experiencing a problem with Microsoft's Fumbled fix method.
This is still a C update and will only be installed if you click "Check for updates", but "searchers" who click this button will get a patch already through a round of testing with people, who know what they are getting involved with. Of course, Windows insiders are people who have opted for beta testers.
As Woody mentions at Computerworld, Microsoft has initially pushed back a trial of a cumulative update for the Release Preview ring in November 2018. But this time, has undergone two builds the test cycle and Insiders used to find problems before the stable release.
This is only one month after the release of the first version of the catastrophic October 2018 update, which deleted some people's files. Microsoft was so confident in this major update that the company did not even run the Release Preview test before giving free rein to those unlucky "seekers" who had clicked on "Check for Updates":
It's not irrelevant. We have made only a small change in our approach. 1809 goes to the RP today and will be crucial for the kick-start service. Slow was helpful in helping every show stop bugs.
– Brandon LeBlanc (@brandonleblanc) October 2, 2018
When Microsoft's Brandon LeBlanc pointed this out, Microsoft released the patch to release the preview [19459013Caless it was released for "Seekers".
Now, Microsoft has been discouraged, and even smaller patches have been tested by real tests before they were introduced. That's an improvement!
We only wish Microsoft would stop its phenomena with the "Check for Updates" button. This button should never force users to use additional, less-tested patches without warning. At the very least, these patches will be tested first.
. Photo credits: KC Lemson / Microsoft