Visual Studio 2017告诉我现在每次打开IDE都可以使用Visual Studio 2019版本
这才刚刚开始:每当我打开VS 2017 IDE实例时，我都会看到一个黄色的条，通知我Visual Studio 2019的新版本，该版本将向下推现有的窗口，从而减小了窗口的可见区域.
This just started today: whenever I open an instance of the VS 2017 IDE, I get a yellow bar informing me of a new version of Visual Studio 2019, which pushes down the existing windows thus reducing the visible area of the windows.
我没有或没有使用VS 2019，目前我不关心其新版本.第一次发生时，我单击"x"，以为结束了，当再次执行时，我单击了更多信息"，结果相同.我该如何停止?
I don't have or use VS 2019, and at this moment in time I don't care about its new versions. The first time it happened I clicked the "x" thinking that would be the end of it, and when it did it again I clicked "More info" with the same result. How do I stop this?
Posts like this erroneously point people to the "Tools | Options | Environment | Extensions and Update" which, as the OP notes, is about updates to extensions, not the IDE.