Although the latest Dragon landing was successful, the booster is apparently not in a usable state to be re-flown. The damage was apparently done during re-entry.
Instead, it will be used in testing to help make the next booster more able to take high speed and heat. We're still making progress.
And don't forget - Falling Dusk hits the electronic shelves this Friday! (The print version is still in the works, but I had an issue with a lost proof that's set me back slightly).