Golang: go-version library for parsing and comparing versions

go-version is a library for parsing versions and version constraints, and verifying versions against a set of constraints. go-version can sort a collection of versions properly, handles prerelease/beta versions, can increment versions, etc.

package main
import (
func main() {
    v1, _ := version.NewVersion("1.2")
    v2, _ := version.NewVersion("2.1")
    if v1.LessThan(v2) {
        fmt.Printf("%s is less than %s", v1, v2)
    // 1.2.0 is less than 2.1.0

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