Quick summary: Images now will be served by google infrastructure. We anticipate no noticeable changes to app behaviour.
We are rolling out a new image resizer that replaces the one we currently use in Cloudflare. New image resizer utilizes google infrastructure and allows us to have more control over the image processing. As a result this should decrease image loading time and improve reliability. We upgraded our caching mechanism that will improve performance as well. The goal is to change the way all images are served by appsheet, that affects all app views, reports and emails.
Before that change all images were served by either appsheet.com/get or appsheet.com/template/gettablefileurl endpoint. Now it is replaced by a single appsheet.com/image/getimageurl endpoint. This new endpoint instead of serving image content returns a redirect to another url that looks like lh3.googleusercontent.com/xyz. Those urls use wide google infrastructure to serve images, that allows us to serve images quicker and more reliable.
Important note that custom built gettablefileurl will continue to work. Hyperlink to an Image
Let me know if you have any questions or issues with new image resizer.