I just logged into my client’s CP this morning and got a notice from the Developer Log that said:
The system has detected an add-on that is using outdated code that may stop working or cause issues with the system. What does this mean? Deprecated function login_form() on line 0.
This is not very helpful as it doesn’t tell me which add-on it is and we have quite a few installed on this site. How do I find out which one it is?