本記事は Macworld の iOS 26.6 beta 2 is here, but you won't see much that is new をアーカイブします。26.6 はバグ修正・セキュリティ中心で目新しい機能はほぼありません。データ: data/ios-266-beta-2-macworld-snapshot.json。
6 月 15 日更新で iOS 26.6 第 2 ベータが公開。唯一の噂は「ブロック通話上限に近づいたら通知」、開発中は「奪われたら自動ロック」（beta 2 では未確認）。
iOS 26.6 の変更点
June 15, 2026 (Macworld update: second iOS 26.6 beta released) · iOS 26.6, iPadOS 26, watchOS 26, macOS 26, etc. focus on bugs and security fixes with no major new features; may add support for new WWDC 26 hardware. Source: iOS 26.6 beta 2 is here, but you won't see much that is new (Macworld, archived 2026-06-29).
Known 26.6 changes
| Item | Status |
|---|---|
| Blocked-call limit notification | Only rumored new feature so far: warns when approaching the blocked-calls limit |
| Anti-snatch auto-lock (in development) | Auto-lock if iPhone is yanked from your hands; may land in 26.6 but not seen in beta 2 yet |
Public beta install steps
- Click Sign Up on the Apple Beta page and register with your Apple ID
- Log in to the Beta Software Program
- Click Enroll your iOS device
- Open Settings → General → Software Update
- Under Beta Updates, select iOS Public Beta (option may take a moment to appear)
Developer beta install steps
- Download the Apple Developer app from the App Store
- Open the app and tap Account
- Sign in with your Apple ID (free developer account works)
- In Settings → General → Software Update → Beta Updates, select Developer Beta
主力端末では正式版を待つことを推奨。Tech Hub · iPhone 17 Pro