Official Discussion: September 17th, HOTFIX [1.19.9.0]

Good question, it does not seem to find any update in the Store update list. So instead, just click on the MSFS icon in the store and wait 5-15 minutes, until the download appears. If that does not work, take above advise to Repair the MSFS app.

Checkout this list

… and these Store tips… there is an option to refresh updates (I did not know that…)