Cashews are not required to be checked

The OK kosher has not given an official update or clarification on the matter yet; however, Rabbi Hanoka has relayed this info

Cashews are not required to be checked

However, it is a good idea to check them, and it is also essential to ensure nuts are kept in ambient or cool temperatures and not in hot temperatures.

There was an issue with a particular supplier who had gotten a bad batch; the issue was resolved and limited to that one supplier.

How to check cashews for worms

You should split them open and give a cursory inspection.