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Apple 提醒開發者：舊版 Developer ID 簽署憑證將於 2027 年到期
Apple 表示，原始 Developer ID Certification Authority (Sub-CA) 將於 2027 年 2 月 1 日到期，透過該機構簽發的憑證屆時將停止運作。受影響的 .pkg 安裝套件須在期限前改用新憑證重新簽署。
完整報導
Apple Developer 提醒開發者，原始 Developer ID Certification Authority (Sub-CA) 將於 2027 年 2 月 1 日到期，該機構簽發的憑證也會在當天停止運作。開發者可在 Certificates, Identifiers & Profiles 中檢查到期日為該日或更早的憑證，並參考 Apple 提供的說明確認簽發機構。
Apple 建議受影響者使用現行的 Developer ID Certification Authority (G2) 建立替代憑證。G2 機構有效至 2031 年，但其簽發的憑證仍須每年續期；使用 Xcode 11.4 或更早版本者，應先更新 Xcode。建立憑證時，應選擇 G2 Sub-CA，因為選擇其他中介機構可能仍會取得 2027 年到期的憑證。
影響取決於軟體的交付形式：自 2027 年 2 月 1 日起，以受影響憑證簽署的 .pkg 將無法安裝，Apple 因此建議在期限前重新簽署套件。至於已簽署並完成公證、且包含安全時間戳記的 Mac 軟體，Apple 表示會繼續運作；未來更新則應改用新憑證簽署，並為公證加入安全時間戳記。
為什麼值得注意
這項期限對交付 .pkg 安裝套件的開發者尤其重要：若未在 2027 年 2 月 1 日前以新憑證重新簽署，受影響套件屆時將無法安裝。Apple 同時指出，符合安全時間戳記條件的既有 Mac 軟體不受此影響，可協助開發者區分套件更新與既有應用程式的處理方式。
來源證據
先看主要證據，再查看佐證來源與來源脈絡。
主要證據
1Upcoming expiration of Developer ID Certification Authority (Sub-CA)
“The original Developer ID Certification Authority (Sub-CA) expires on February 1, 2027. Certificates issued by this authority will stop working on that date. What to do: Check if you’re affected. In Certificates, Identifiers & Profiles , look for certificates expiring on or before February 1, 2027.…”
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