NFL Media Insider Ian Rapoport reported early last week that Wright was seeking a trade or release. A dozen days later, the Niners granted his request.
Wright thanked the Niners on Twitter for his release.
Wright signed a one-year, $3 million deal in March after making 27 starts over the past four seasons with the San Diego Chargers. The 28-year-old defensive back was not active in any of the Niners' four games this season.