Class NamedEnum: (2017-05) This class is retained for compatibility only and should be used for any new code. The Foam::Enum class is robuster, more flexible, easier to use.
Class regExpPosix: This class will be superseded by Foam::regExpCxx as compiler support for regular expressions continues to improve.
Member topoSetSource::DELETE: (2018-10) Alias for SUBTRACT
Member wordRe::NOCASE: (2018-04) Alias for ICASE