The links below are to articles reporting on a forced update of the Kindle for PC and Mac.

For more visit:
– https://goodereader.com/blog/kindle/kindle-for-pc-is-force-updating-to-the-latest-version
– https://blog.the-ebook-reader.com/2020/10/25/kindle-for-pc-and-mac-forcing-update-to-newer-version/