The eARC for Destroyer of Worlds is available now:
For those who aren’t familiar, an eARC is the electronic advanced reader copy. This is the early version that goes out to critics and book sellers, but Baen makes them available to the public so you can get your fix early.
These are usually early, less edited versions. However, I’ve got a history of turning in really clean manuscripts so none of my eARCS has ever had a major change from the final version.