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Yes. The periods are just part of the name like any other letter, so 5 is compared to m, and numbers sort before letters. You can add something like ‘.0’ to make it sort more naturally. Look up an ASCII table to get a feeling for how strings are sorted.
I don’t know where you are, but this isn’t always enough. If it’s your employer’s IP it’s not yours to license to begin with.
In my situation, it even extends to any hobby projects I work on and I don’t think my situation is unusual.
That said, most employers don’t care about hobby projects with no earning potential.