I'm confused with price-release staff though: 10$ is for the latest version always (when a new version will be released, you'll updated the files) or it is for the specific version, that is 0.6?
$10 - the cost of the new version. After a while, the price drops to $5. When the next version is released (let's say 0.7), the 0.6 price will drop to $1, and the 0.7 release will cost $10. And all in a circle.