What do the numbers X, Y, and Z mean in “Jungle Monkey X.Y.Z”?
They are version numbers. X is the major version, Y is the minor version, and Z is the microversion. Releases with an even minor version (ie, 1.0.3) are stable releases and intended for the general public. Releases with an odd minor version (ie, 0.3.2) are developer releases and should be used by developers and alpha-testers only. For stable releases, the microversion denotes the bug fix version. Stable releases in the same series should be compatable, but ones with larger microversions probably have fewer bugs.