Next update will not be 1.0.0, it will be 0.10.0.
I use game version numbers like this:
X.Y.Z
Y is the major version (the update number)
Z is the minor version (for bug fixes and small improvements)
X is the "milestone" version. Will only be changed if some big game milestone is met, like having finished adding all paths to the game, or something of that magnitude.