upload_to_testflight.md in fastlane-2.123.0.beta.20190508200056

- old
+ new

@@ -223,5 +223,9 @@
 
 _pilot_ uses the [CredentialsManager](https://github.com/fastlane/fastlane/tree/master/credentials_manager) from _fastlane_.
 
 ## Provider Short Name
 If you are on multiple App Store Connect teams, iTunes Transporter may need a provider short name to know where to upload your binary. _pilot_ will try to use the long name of the selected team to detect the provider short name. To override the detected value with an explicit one, use the `itc_provider` option.
+
+## Use an Application Specific Password to upload
+
+_pilot_/`upload_to_testflight` can use an [Application Specific Password via the `FASTLANE_APPLE_APPLICATION_SPECIFIC_PASSWORD` envirionment variable](https://docs.fastlane.tools/best-practices/continuous-integration/#application-specific-passwords) to upload a binary if both the `skip_waiting_for_build_processing` and `apple_id` options are set. (If any of those are not set, it will use the normal Apple login process that might require 2FA authentication.)