Twitter has a big search and discovery announcement today, according to a tweet by the company’s Personalization and Recommender Systems Chief Pankaj Gupta.

“Search & discovery in @twitter set to change forever after tmrw,” tweeted Gupta Thursday, without giving away any other details.

It’s a long shot, but today’s possible announcement could be somehow tied to Twitter’s recent criticism of Google, after the company tightly integrated Google+ into its search results.