The NFLPA salary cap report has been updated, and it includes the contracts signed by Ian Williams and Zane Beadles. The report has the 49ers sitting with $53,582,558. The NFLPA salary database includes base salaries for Williams and Beadles, which would seem to indicate the deals are fully factored into the cap report.
Ian Williams had originally agreed to terms on a five-year contract that was reportedly going to be worth $27.5 million. However, reportedly multiple offseason ankle surgeries were not healing sufficiently, putting Williams in danger of missing the start of the season. That resulted in a revised one-year contract reportedly worth up to $6 million.