Breaking: #105863 - Remove exposeNonexistentUserInForgotPasswordDialog setting in EXT:felogin 

See forge#105863

Description 

The TypoScript setting exposeNonexistentUserInForgotPasswordDialog has been removed in EXT:felogin.

Impact 

Using the TypoScript setting exposeNonexistentUserInForgotPasswordDialog has no effect anymore. The password recovery process in EXT:felogin now always shows the same message when a username or email address is submitted in the password recovery form.

Affected installations 

Websites using the TypoScript setting exposeNonexistentUserInForgotPasswordDialog in EXT:felogin are affected.

Migration 

The setting has been removed without replacement. It is possible to use the PSR-14 event SendRecoveryEmailEvent to implement similar functionality if absolutely necessary. From a security perspective, however, it is strongly recommended not to expose the existence of email addresses or usernames.