Extension method to extract informational version string from assembly metadata

AssemblyInformationalVersionExtensions.cs

public static class AssemblyInformationalVersionExtensions {
	public static string GetInformationalVersionString(this Assembly assembly) {
		return assembly
			.GetCustomAttributes(typeof(AssemblyInformationalVersionAttribute), false)
			.Cast<AssemblyInformationalVersionAttribute>()
			.Select(t=>t.InformationalVersion)
			.FirstOrDefault();
	}
}