应用与Today Extension Widget版本号需统一吗？App Store上传版本不匹配咨询

Great questions—this is such a common pain point when working with Today Extensions (or any app extension) on iOS, so let’s break it down clearly.

1. Should the main app and Today Extension share the same version number? #

Short answer: Yes, absolutely. You should always keep their marketing version (CFBundleShortVersionString) identical, and it’s smart to align the build version (CFBundleVersion) too. Here’s why:

• Users see your extension as part of your main app, not a separate product. Mismatched versions will just confuse them (like if your app is on v2.1 but the widget still shows v2.0).
• Apple’s App Store ecosystem expects this consistency. Even if it’s not spelled out as a strict rule upfront, the validation process will flag mismatched marketing versions—which leads directly to your second issue.

2. CFBundleShortVersionString mismatch warning: Are versions required to stay in sync? Do I have to update each extension manually? #

First, the critical part: The marketing version (CFBundleShortVersionString) must match exactly between your main app and all its extensions when submitting to the App Store. That warning you’re getting is Apple’s validation system catching a problem here—ignore it, and your submission will almost certainly get rejected.

As for updating manually: By default, Xcode doesn’t sync version numbers between the main app and extensions, so yes, you’ll have to edit each extension’s Info.plist file individually unless you set up a small automation.

If you want to skip the manual hassle, add a build script to your project:

1. Open your main app target’s Build Phases tab
2. Click the + button and select New Run Script Phase
3. Paste this script (adjust the extension path to match your project):

   # Grab the main app's version and build numbers
   APP_VERSION=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" "${PROJECT_DIR}/${INFOPLIST_FILE}")
   APP_BUILD=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "${PROJECT_DIR}/${INFOPLIST_FILE}")
   
   # Update the Today Extension's Info.plist
   EXTENSION_PLIST="${PROJECT_DIR}/YourTodayExtensionTarget/Info.plist"
   /usr/libexec/PlistBuddy -c "Set :CFBundleShortVersionString $APP_VERSION" "$EXTENSION_PLIST"
   /usr/libexec/PlistBuddy -c "Set :CFBundleVersion $APP_BUILD" "$EXTENSION_PLIST"
   

This script will automatically sync the version numbers every time you build your app, so you only ever need to update the main app’s version once.

内容的提问来源于stack exchange，提问作者moonvader