メジャーバージョンアップ

noun

major upgrade; major update

Wasei-eigo computing term for a major software version upgrade, as opposed to a minor update or bug fix.

wasei-eigo (Japanese-coined English), from major version up

• 次つぎのメジャーバージョンアップでは、UIが大おお幅はばに変かわるらしい。

  I hear the UI will change significantly in the next major upgrade.