Microsoft is sending emails to Windows Store publishers that don't have age ratings for their apps. Microsoft says those apps will be removed from the Windows Store after Sept. 30 unless they get updated with approved age ratings.
Microsoft started rolling out the new age rating system for Windows Store apps in January 2016, based on the International Age Rating Coalition's (IARC) system. Ratings are also available for each market, like North America, Europe, Germany, Australia and Brazil. Microsoft previously warned that apps with no ratings would be removed from the store earlier this summer.
Now Neowin is reporting that Microsoft has sent a final warning to those app developers, along with a firm date for the app's removal if it does not have an age rating.
As part of our continuing efforts to improve the Store experience for our joint customers, we notified you several times to complete the Dev Center age rating questionnaire for your apps that did not have ratings based on the questionnaire. If you do not act by the deadline of September 30, 2016, we will need to unpublish your app for failure to comply with policy 11.11, Age Ratings.
It's very possible this move will result in many apps getting the axe that have been posted for some time, but have not been updated by their creators.