Noun, Suru verb, Transitive verb
(software) update; upgrade (to a new version)
Computing
Ｍａｃ ＯＳ Ｘといっても、Ｍａｃ ＯＳのコードをバージョンアップした訳ではない。Although it's "Mac OS X", that doesn't mean that the Mac OS code itself has been upgraded to a new version. upgrade (to a device, product, etc.); improvement
Also written バージョン・アップ、ヴァージョンアップ、ヴァージョン・アップ