Notepad++ decided to update, delete all my plugins and auto complete no longer works. They changed the "APIs" folder to "autoCompletion".
Now we must put "sourcemod.xml" inside "C:\Program Files (x86)\Notepad++\autoCompletion".
It took me a long time to get everything working again so I can't verify other required changes. I actually reinstalled and started from scratch, but this shouldn't be needed.