Apple today began notifying developers about the upcoming closure of the old TestFlight beta testing service accessible through TestFlightApp.com, reports The Next Web. The impending February 26 shutdown of the standalone website arrives nearly one year after Apple's acquisition of TestFlight through its purchase of Burstly and subsequent integration of the service into iTunes Connect.

TestFlight iTunes Connect
TestFlight on iTunes Connect and the legacy website were operated as independent services over the past year, enabling developers to test significant changes to their apps. Apple now encourages TestFlightApp users to export current testers so that they can be imported to the iTunes Connect version, and has posted a help document to help developers transition between the services. The new version of TestFlight is available for iOS 8 and later.