version numbering

Hi is there a standard way of version numbering a project

for example v1.0 if i make an amendment does that become v1.1?

i have seen some software that is version 1.3.4?

just need a little input

Thanks

It is really up to you, but many follow this scheme.
From Python.org

Quote:

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Python versions are numbered A.B.C or A.B. A is the major version number – it is only incremented for really major changes in the language. B is the minor version number, incremented for less earth-shattering changes. C is the micro-level – it is incremented for each bugfix release.

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