。
She got promoted.
Literal
She [topic-は] rank-rose.
昇格する ('to be promoted, rise in rank') is the formal verb for promotion — 昇 ('rise') + 格 ('rank, status') as a Sino-Japanese compound. It's used in corporate, military, and institutional contexts where rank is formally tracked. The verb is intransitive: she rose, no one promoted her in the active grammatical sense (compare 昇進する which is similar; 昇格する specifically tracks promotion of formal class or category). The bare past 昇格した as a complete sentence is terse and often appears in resume bullets or news headlines: '彼女は昇格した。' The flat tone is what makes it feel like a notification rather than a celebration.