🛠️ 虹彩六號：圍攻行動 更新紀錄
開發商在 Steam 發布的官方公告：修補檔、新內容與活動，依時間整理。點標題看完整內容。
2026 年 9 月
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9/18五🎉 活動Save up to 90% on games during the Ubisoft 40th Publisher Sale!
Until October 1, join us in celebrating 40 years of gaming! Save up to 90% on top games and DLC, including Rainbow Six Siege and more. https://store.steampowered.com/app/359550?utm_source=partner-site…
資料來源：Steam 官方公告（每 6～24 小時更新）。標題與摘要版權屬於原開發商。