Farewell little button, you were always a loyal companion. 🥲
Not many seem to have to noticed this button disappeared in the 25.1 release, just a little mention in the release notes:
Quoteo system: remove the old manual LDAP importer
https://forum.opnsense.org/index.php?topic=45460
Now you have 2 options to import users from LDAP:
1. Use the new "Import csv"-button to import a CSV file.
2. In "System: Access: Servers" enable the options "Read properties" + "Synchronize groups" + "Constraint groups" + "Automatic user creation" in your LDAP server.
But I haven't tested any of these options now, feel free to post your experiences. ☺️
GitHub references:
#7904 (https://github.com/opnsense/core/issues/7904)
#8065 (https://github.com/opnsense/core/issues/8065)
#8340 (https://github.com/opnsense/core/issues/8340)
#8446 (https://github.com/opnsense/core/issues/8446) (screenshot of the button)
#9303 (https://github.com/opnsense/core/issues/9303)