How to say "update" in Japanese

• 更新こうしんCommon
  noun, suru verb, transitive verb, intransitive verbCovers the core sense of 'update': bringing data, records, software or a website up to date. It also means renewing a contract or period, so context tells which reading applies.
  この冬ふゆは降雪量こうせつりょうの記録きろくを更新こうしんした。↗

  This winter the record for snowfall was broken.
• 最新情報さいしんじょうほうCommon
  nounThis is the noun for the latest information or news itself, so it fits 'update' when you mean something you check or receive, not the act of revising data.
• 修正しゅうせいJLPT N3approx.Common
  noun, suru verb, transitive verbFits 'update' only when the change amounts to correcting or amending something — fixing mistakes or revising details. For updating in general it is really a correction word, not the default choice.
  失礼しつれいですが御ご提案ていあんを修正しゅうせいさせていただきます。↗

  I beg to modify your proposal.
• リニューアルCommon
  noun, suru verb, transitive verbAs 'update' it is marginal: the word really means renewal, renovation or overhaul — giving a site, store or product a fresh new look — rather than routine updating.

Use 更新 for bringing data, records or contracts up to date, 最新情報 when 'update' means the latest news itself, 修正 for correcting or amending, and 「リニューアル」 for a full renewal or overhaul.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 更新こうしんrenewal
• 最新情報さいしんじょうほうlatest information
• 修正しゅうせいamendment
• リニューアルrenewal
• アップデートupdate
• アプデupdate (esp. to software)
• グレードアップupgrade
• バージョンアップ(software) update
• 沙汰さたnotice