I tried at least three times, the installer would start, it would ask me for an administrative login, and then nothing else would happen. I tried several times, the first time clicking the “update now” in the notification that there was a new version; the second time I went and downloaded the update file myself from the Keyman website, then the third time I logged in to my administrative account then tried to run the installer. Each time nothing happened.
Finally I uninstalled the version I had, ran the installer again and this time it worked. My older version was 10.0.1092.