It was AND not OR before. IIRC, the selection in dropdown was "All words ..." or "Exact phrase"

>For years, it's been an OR. Temporary for a few days this week to adapt for the transition, there was some adjustments in it. But, everything is back to normal. So, it is still an OR. For, you can do more than before. You can search for strings within quotes. So, those are examples:
>
>michel fournier "level extreme"
>report writer
>report writer "sql server"
>"windows xp pro sp2"