A question : 1.2.546 is a stable or beta version ?
1.2.546 - Build 1000, is both a beta and stable. There's currently no difference between the 2 versions, they're the
exact same binary file. However, they are bound to evolve in different directions with time.
Do note that, for the beta branch, a version will be identified by the combination of the version number and build number (so 1.2.546 - Build 1001 will be different from 1.2.546 - Build 1000). For the stable version, the version number will always be incremented for easier understanding.
Do note also, that every bug that is corrected in the stable version will also be in the beta version. The opposite isn't always true, as some bugs that are deemed not critical in a beta version won't warrant the release of a new stable version on their own, if that makes sense.