The latest version is 0.0.5, which is cross-built against Scala 2.10.x, 2.11.x and 2.12.x.
If you're using SBT, add the following line to your build file:
libraryDependencies += "com.gilt" %% "gfc-semver" % "0.0.5"
For Maven and other build tools, you can visit search.maven.org. (This search will also list other available libraries from the gilt fundation classes.)