What version am I supposed to be using? 1.8.2 (the latest version on the Dogecoin website and the current build on github) gives a message that says my version is obsolete, and that I need to upgrade. Version 1.10 Beta 2 gives me a message saying that it is a pre-release build, and that I shouldn't use it for mining or merchant services. Is there a non-obselete version that is appropriate for mining use?