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iPadOS 26の新機能とアップデート：対応iPad、バックアップ、設定からのインストール

対応表はApple Support。iPadをバックアップしてから設定で更新。Apple IntelligenceはM1以降またはiPad mini (A17 Pro)が必要。

「iPadOS 26 新機能 アップデート」を探す人が最初に確認するのは三つ：公式対応表に載るか、ダウンロード前にバックアップがあるか、iPadの「設定」から公式手順で入れるか。

Apple previewed iPadOS 26 at WWDC 2025. Compatible models and install steps live on support.apple.com/en-us/123706 and apple.com/os/ipados/. Below follows only Apple release notes and Support docs — features, the model table, and the Settings → General → Software Update path on iPad.

M1+ Apple Intelligence floor
Settings Install on iPad
26 Same generation as iOS 26

One OS update, not one AI package

Wide install list

Apple Support lists iPad Pro 11-inch (1st generation and later), 12.9-inch (3rd generation and later), M4, iPad Air (3rd generation and later including M2/M3), iPad (8th generation and later and A16), and iPad mini (5th generation and later and A17 Pro). The 7th-generation iPad is not listed.

Some headlines need M1 or newer

Apple’s newsroom states Apple Intelligence features — Live Translation, Genmoji, Image Playground, intelligent Shortcuts actions — require iPad models with M1 and later or iPad mini (A17 Pro), with Apple Intelligence enabled and Siri and device language set to the same supported language.

iPadをバックアップ対応表を確認設定から更新

What shipped in iPadOS 26 (Apple release notes)

01

Liquid Glass and windowing

Apple release notes describe the Liquid Glass design and a new windowing system with resize, tiling, Exposé, and a menu bar, working with Stage Manager and external displays.

02

Files, Preview, and pro workflows

An enhanced Files app adds list view, folder customization, and Dock folders; Preview arrives on iPad for PDF and image markup; Background Tasks, local capture, and per-app audio input target audio and video workflows.

03

Apple Intelligence and daily apps

Live Translation reaches Phone, FaceTime, and Messages; Shortcuts gains intelligent actions; Journal and the Apple Games app come to iPad. Apple notes some features may be unavailable by language, region, or local law.

Back up, then install from iPad Settings

  1. 01
    Back up and confirm the model

    Apple Support recommends backing up before downloading new software. Use iCloud backup, or a local backup via Finder on Mac or iTunes on PC. Compare your iPad against the list at support.apple.com/en-us/123706.

  2. 02
    Connect Wi‑Fi and charge

    Connect iPad to stable Wi‑Fi and keep it charged or on power. Apple documentation warns that weak networks or low battery can interrupt downloads.

  3. 03
    Settings → General → Software Update

    On iPad open Settings, tap General, then Software Update. When iPadOS 26 appears, tap Download and Install and follow the onscreen steps. You can enable automatic updates on the same screen for overnight installs.

  4. 04
    Wait for restart and verify

    Do not force-restart during install. After reboot, if you rely on Apple Intelligence or external-display windows, confirm Apple Intelligence is enabled and language settings match Apple’s requirements.

Compatible models (Apple list)

iPadiPadOS 26Check
Pro M4 / 11" 1st+ / 12.9" 3rd+ListedWindows + external display
Air M2/M3 / Air 3rd+ListedAI needs M1+
iPad 8th+ / A16Listed7th-gen iPad excluded
mini 5th+ / A17 ProListedmini AI needs A17 Pro

Apple newsroom: iPadOS 26 is a free software update for the listed iPad models. Installing the OS does not guarantee every headline feature on every chip.

Edges to read

Apple Intelligence
Apple requires iPad models with M1 and later or iPad mini (A17 Pro), Apple Intelligence enabled, and Siri and device language set to the same supported language (including English, French, German, Italian, Portuguese (Brazil), Spanish, Japanese, Korean, and Chinese (Simplified), with more languages coming).
Regional availability
Apple notes some features may not be available in all languages or regions, and availability may vary due to local laws and regulations.
External display
Apple release notes say the new windowing system works with external displays; experience varies by app, cable, and adapter support.
# Official path (Settings on iPad)
Backup: iCloud or Finder/iTunes local backup
Settings → General → Software Update
Download and Install → iPadOS 26
Wi‑Fi + power; do not force-restart until complete

iPadOSのダウンロード中も、5分の同期なら1ページで足りる

大きなOS更新には時間がかかる。Macや別端末が空いていれば、ブラウザで音声＋ホワイトボードの部屋を：frogmeet。iPadブラウザの制限：モバイルの説明。

Questions worth checking

MacからiPadOS 26を入れられる？

一般公開版はiPad本体の「設定 → 一般 → ソフトウェアアップデート」から。日常利用はApple Supportの手順に従う。

対応iPadすべてでLive Translationが使える？

いいえ。AppleニュースルームはM1以降のiPadやiPad mini (A17 Pro)など対応機種と、Apple Intelligenceの有効化・言語設定を要求する。

バックアップはどのくらいの頻度？

Apple Supportは新しいソフトウェアをダウンロードする前にバックアップを勧める。iCloud自動バックアップか、大きな更新前のFinder/iTunes手動バックアップ。

今すぐ開始