We've read conflicting things on Itch.io. Basically if the project/page price is what you pay/have paid and it's not a separate item it's supposed to give you access when a new version comes out. That being said we are raising the price to $10 USD when we drop V0.8 (September 26th) to be aligned with the near future Steam release. If you were considering purchasing I would suggest waiting until the V0.8 release in case things are funky.