Corona warning app 2.23 available: important innovation on board

The Corona-Warn-App 2.23 has been released and brings a function that is now important for many users. The details.

As announced, those responsible for the Corona-Warn-App (CWA) have published an update for their app with which you can easily have technically expired recovery and vaccination certificates renewed. This update carries the version number 2.23.


The technical validity of vaccination and recovery certificates is limited to 365 days, regardless of the technical validity, as the CWA makers explain. That is why the first CWA users are now being informed that they should renew their certificate. With version 2.23 you can do this directly via the CWA.

How to renew the certificate

The CWA automatically informs users before their recovery and vaccination certificates expire. You then have up to 90 days after the expiry of the technical validity to renew the certificate. To do this, tap on the note “Renew certificate” in the certificate area of ​​the app. Then give your consent – and the app will automatically replace the certificate. The technically expired certificate moves the app to the trash.

Notes from the CWA creators:

Recovery Certificates can always be technically renewed when they are about to expire. With vaccination certificates, users only have to renew the certificate currently in use, as it contains sufficient information about vaccination protection. For users who have stored three vaccination certificates in the CWA, the vaccination certificate for the first and second vaccination is not exchanged, only the vaccination certificate for the booster vaccination as soon as it is about to expire.

Test certificates are not renewed because they are technically not valid for that long anyway.


A technically expired certificate can only be renewed three times. If users have stored their certificate on several devices in the CWA, they can only renew it on three devices. However, you have the option of exporting the newly issued certificate as a PDF file so that you can scan the QR code of the certificate again if necessary. Read more about this here.

How to get the update

The Corona-Warn-App 2.23 will be gradually rolled out to all users over a period of 48 hours. iOS users can now download the current app version manually from the Apple store. The Google Play Store does not offer a way to initiate a manual update. The new version of the Corona warning app will be available to users here within the next 48 hours.

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