Certificate Not Valid iPadOS 13.3

I have an app written that has been working for over 3 years. The app is installed via OTA. Was contacted by user yesterday with an iPad Air 3rd generation with ipados 13.3 and the app will not install on his device. It says the certificate is not valid. This is the first time in over 3 years we have had an issue where the app will not install on a device. It appears to correctly install on any other ipad (have not had any calls) but outside the ipad air 3 there, all the other ipads were released in 2018. Did apple change something with the new ipads that come out in 2019 to use a different certificate type causing the install to fail?

Replies

Enterprise iOS Distribution Certificates are only good for 3 years. You will need to create a new certificate, assign it to your distribution profile, and rebuild the app using the new cert and profile. Log in to your developer account, go to "Certificates, IDs, & Profiles". Click + on the Certificates page to start creating a new certificate. Once that is ready, go to the Profiles page, click on the app's profile, click on Edit, select the new certificate, and click Save.