At last, we have the final updates for 2020 from Microsoft. For anyone keeping count, we ended up with 1,250 CVEs (Common Vulnerabilities and Exposures) for the year. That’s almost 50% more than the 800 we had to deal with in 2019. Given the way we get updates delivered in a cumulative fashion, I don’t think of it as about the number of vulnerabilities; I think more about how many times I had to deal with post-release issues in 2020. I’ll recap the year’s major patching issues later this month. For now, I’ll summarize the issues to watch out for in December.
First, a reminder if you’re running Windows 10 1903: This is the last official release for that version. You must be on Windows 10 1909 (or later) to continue to receive security updates. In the past, I have recommended setting the deferral for feature updates for 365 days. Now, I recommend using the targetreleaseversion setting to specify the exact feature release version you want. So if you set the value at 1909, you’ll receive 1909; if you set it at 2004 — even if you are on 1903 — you’ll get offered 2004, not 1909. (For Windows 10 Home users, I continue to recommend you upgrade from Home to Professional to better control updates.)
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