We already know that Apple is testing Mac OS 10.9 inside its campus, we assume that this version will be presented in February of next year, but for now we do not know what name it would have. A rumour appeared during the last night still tells us that Lynx could be the name chosen by Apple for the future version of Mac OS, Mountain Lion being the name of the current version. Although the information comes from someone who claims to have seen Apple's internal documents certifying the said name, it is hard to say how true everything is.
Over the years Apple has used various names of wild animals for its Mac OS, it would not be excluded that Lynx is indeed chosen for Mac OS 10.9, but for now we do not know anything 100% certain.
