February 13, 14 expirations requiring some changes by developers
Apple game developer and porting house Aspyr has noted that 14 of its titles on the Mac App Store will no longer function properly after February 13 if the user downloaded or updated the title from the Mac App Store between November 12 and December 22 of 2015, unless the user takes some corrective actions. The issue affects Borderlands 2, Borderlands: The Pre-Sequel, Call of Duty, Call of Duty 2, Call of Duty 4: Modern Warfare, Civilization IV: Colonization, Civilization V, Neverwinter Nights 2, Star Wars: Empire at War, Star Wars: Jedi Knight II: Jedi Outcast, Star Wars: Knights of the Old Republic, Star Wars: The Force Unleashed, The Secret of Monkey Island, and Tomb Raider 2. Purchasers who acquired the titles through digital distribution service Steam, or other venues, are unaffected by the certificate expiration.
To reinstall affected titles, without erasing saved data, Aspyr recommends a manual deletion, with the game folder installed by the Mac App Store dragged to the trash, followed by a restart. Users must then re-install the title through the Mac App Store. App deletion utilities will also erase associated data, like game saves, so use of such utilities is not recommended.
While most developers and users will not be affected by the other certificate change expiration affecting new Apple Wallet Passes, push packages for Safari Push Notifications, and Safari Extensions, Apple recommends that all developers download and install the renewed certificate on their development systems and servers as a best practice. Should the update not be performed by the February 14 certificate expiration, apps that generate passes for Apple Wallet will not be able to install new passes, and new users will not be able to sign up for push notifications from an un-updated websites until the relevant servers have been updated.
In both Aspyr's case, as well as applications that require the new Apple Worldwide Developer Relations Intermediate certificate, the new certificate will expire on February 7, 2023.