I usually start my projects with a version 1.0.0. As soon as I have some stuff together, I release it as 1.0.0 and move on with 1.1.0.
However, this leads to usable but not exactly feature complete version 1.0.0 of most stuff I write. I then add features and get to a decent version somewhere around 1.6.0. Many projects start with version 0.1.0, which will be as usable as my 1.0.0.
What would you suggest doing? Start with 1.0.0 or 0.1.0?
The last number is for bugfix releases only by the way. You can think of my 1.0.0 as 1.0 and 0.1.0 as 0.1 is that's easier for you.
The version numbers should be meaning to you as Arrieta correctly commented before.
Maybe following something like: First # is mayor release, Second # is the same mayor release with some features added and Third # is the same mayor release, with the same features but with fixed bugs or added little (but significant enough) changes.
1.3.2 => 1st Release, with more features and some bugs fixed.
However, for final users, some are used to big numbers for final releases.
For instance: Corel 8, for 8.0.0, 8.0.1, 8.2.2, etc. Corel 9, for 9.0.0...etc.
And mostly is more about marketing strategies like: Corel X5 instead of Corel 15.0.2 for instance.
I would say that it depends whether the version number is for you or for the client.
Depends on the project. For simple command line tools, I usually start around 0.9[.0] since I only consider releasing or packing them when they're near completion (or ready for beta testing, anyway.) More complicated projects start around 0.1[.0] and some never even see 1.0. I consider 1.0 a release version (or at least a locally tested beta or release candidate) and plan accordingly.
With team projects, whoever puts the first version tag gets to decide :).
My versioning is driven by the setup. I want it to replace older versions, so I keep increasing it in jumps that make sense to me.
Sometimes, however, versioning is driven by the customer, especially if you're releasing code to the public.
If it's your call, do whatever works best for you. I've had some issues with versions before 1.0 so I start with that.
start with 0.0.0 and move on from there.
0.1.0 is what I start with and move up from there. This is what I've adapted for Xploration By Adrian, although in my early years I was very sporadic and used 1.0.0, 0.0.1, and a few others. But I do recommend starting at 0.1.0 and going from there.
Per Semver, reserve a and c in a.b.c for A. You first official release and C. Bug fixes and patches. This is because a major version generally breaks older code. And patches simply fix bugs. This is all personal preference, 0.99.0 doesn't mean you have to go to 1.0.0, etc. I've seen some that go all the way to 0.218.42.
The version number is entirely up to you. Do what makes sense to you and be consistent. Nobody says you have to start from 0, or 0.0, or 1.0, or 1.1.
Great programmers have actually used the version numbering system as local jokes. Examples (Wikipedia):
For METAFONT:
Finally, not quite a version number, but equally interesting, is that Google's initial public offering (IPO) was filed with the SEC for raising $2,718,281,828 (notice that e~2.718 281 828).
My point is: don't feel that you need to follow the crowd. Be creative and consistent.