This weekend, the Apple Worldwide Developer Relations Intermediate Certificate has expired. The Apple Worldwide Developer Relations Certificate Authority issues the certificates you use to sign Apple software. To do so, you need this valid intermediate certificate. As registered Apple Developer you should have received several emails from Apple over the last months to inform you about this.
As a Titanium developer you might run into the following issues if you have not undertaken any action so far:
You can no longer build your app for production
You will get the following error:
[ERROR] Apple’s World Wide Developer Relations (WWDR) intermediate certificate is not installed. [ERROR] This will prevent you from building apps for iOS devices or package for distribution.
And when you run
[appc] ti info -t ios it will say:
Apple WWDR Certificate Apple WWDR = not found ... iOS Issues ✕ Apple’s World Wide Developer Relations (WWDR) intermediate certificate is not installed. This will prevent you from building apps for iOS devices or package for distribution. Download and install the certificate from https://appcelerator.com/ios-wwdr
Just do exactly what it says. Download the certificate and then double-click to add it to your keychain. Also make sure to delete the old certificate, which might be in another keychain (see Push Notifications). Then run it again to verify it works.
NOTE: Please make sure you select the System keychain as we have recently discovered an issue where the certificate might not be found in your login or other keychains.
Your app has problems with Apple Wallet
If your app uses ti.passbook (or another module) to integrate with Apple Wallet, the server where you generate the Apple Wallet Passes must be updated to use the new WWDR certificate as well. Please follow Apples instructions on how to do that.
Your app has problems with Store Kit
If you app uses ti.storekit (or another module) to integrate with Store Kit and verify receipts on a server, you might have issues depending on your implementation. If the receipt checking code makes incorrect assumptions about the certificate it might fail and need to be updated for the new certificate.
Your app has problems with Push Notifications
Flavio pointed out another possible issue that Apple is aware off. You want to make sure you also delete the expired WWDR certificate or else new (push) certificates you generate might show as invalid when you add them to your keychain.
The new certificate expires on February 7, 2023. So I guess we’ll talk about this again by the time you have an iPhone X.