All iOS apps submitted to the App Store must be built with the iOS 15 SDK or later, but our iOS SDK-CodePudding

I have found similar questions in

CodePudding user response：

Looks like you have multiple Xcodes installed, please make sure you have selected the correct version for your Command Line Tools

CodePudding user response：

I found that it was an embarrassing reason which caused the problem I raised above. I think I am responsible for showing what was going on to all who have read this post, and especially to those who had paused to think about this issue.

In short, Xcode 13.2.1 does build the app using iOS 15.2 SDK.

I was able to successfully archive, verify in Xcode, and uploaded the binary to app store connect. However, I was not familiar with the app store connect and did not aware that there was another binary built with iOS 14.4 SDK which was left by my predecessor.

Though I tried several times rebuild and re-upload, I kept falsely submitting the old binary to Apple's reviewer.

That's it, and no bug or secret about Xcode using older version of iOS SDK to build apps, it is just not true. Xcode does build using its latest SDK. Again my apologies to those who also worried about this issue.