Users using IBM Connections Mobile will stop receiving Apple Push Notification Service (APNS) notifications after the certificates expire on July 21, 2019 (7/21/2019)
To make sure notifications continue, download the iFix for your server version and apply.
IBM Connections Mobile v6.0 CR3 & CR4
IBM Connections Mobile v5.5 CR3
IBM Connections Mobile v5.0 CR4
Note: The new certificates provided by the iFix will expire on April 30, 2020 (4/30/2020).