Apple's TestFlight beta-testing platform for iOS has been inaccessible to developers since late Wednesday, with no indication thus far of when the service might be restored.
Trying to install apps through the official TestFlight app, for instance, will trigger an error message saying the service is "currently unavailable." An exact timeframe is difficult to pinpoint, as Apple has not updated its System Status page to reflect any mention of the problem. Likewise, Apple has yet to say when TestFlight might return to normal.
Developers were also impacted yesterday by iTunes Connect downtime that ran for several hours. Connect is the portal through which iOS and Mac developers manage their titles on the App Store, and through which labels, studios, publishers, and other parties control media published on the iTunes Store and the iBooks Store.
The TestFlight glitch appears to be affecting developers worldwide. Without it, app creators are unable to seed new or updated betas to registered testers.
Both TestFlight and iTunes Connect occasionally suffer periodic outages, but rarely for as much time as this week outside of scheduled maintenance or holiday hours.