I have locked files created with a prerelease CADLock version. Can I use them with the shipping version?
No, you cannot. A prerelease beta version is beta because it may still contain bugs or security holes. The shipping version uses a different encryption algorithm, therefore no beta version will open locked drawings created by a released CADLock, and vice versa. This ensures that any security holes in beta versions cannot be used to break the security of the released version.