2022.03.29. - v1.3 - FEATURE: Added IP kind property, showing if the given address is a public or a private one - FEATURE: At /31 show the according RFC which allows using these addresses - FEATURE: Changelog and versioning was added - BUGFIX: At /31 and /32 the usable address range was miscalculcated 2022.04.20. - v1.4 - FEATURE: RFC numbers added alongside the IP kind label - BUGFIX: Fixed minimum mask value (0 was not possible)