May 2025 Security update - Pixel 6 - 9
- CalyxOS 6.7.20 - Android 15 is now available for Pixel 6 - 9 devices
- May security update (2025-05-05)
- IMPORTANT: Certain Pixel devices won’t be able to downgrade after this update
KEY Google Pixel updates
- Google’s May 2025 Pixel update for Pixel 6 (6, 6 Pro, 6a) and Pixel 8 (8, 8 Pro, 8a) devices incremented the anti-roll back version for the bootloader.
- This prevents the above devices from rolling back to previous vulnerable versions of the bootloader.
- Once you flash the May 2025 update on these devices, you won’t be able to flash and boot older Android 15 builds.
- That update affects CalyxOS, Stock Android OS, and all other Android distributions.
- Trying to downgrade after this update may fail and make your phone unbootable.
Rollout
| Release channel | Date | Notes |
|---|---|---|
| Security express | 7 May, Wednesday | |
| Beta | 8 May, Thursday | |
| Stable | 12 May, Monday |
Changelog
- CalyxOS 6.7.20
- May 2025 Security update (2025-05-05)
- Chromium: 136.0.7103.60
- Update all included apps
Note
- Over-the-air Updates: CalyxOS updates are delivered over-the-air (OTA) automatically, without any manual intervention needed. However, if you'd like to manually update your CalyxOS install, see OTA.
- Security Updates: The Pixel 9 Pro Fold, 9 Pro XL, 9 Pro, 9, 8a, 8 Pro, 8, Fold, Tablet, 7a, 7 Pro, 7, 6a, 6 Pro, 6 contain the full security patch, as they are still being updated by Google.
- Security Updates: The Fairphone 4, 5, Motorola moto g32, moto g42, moto g52 stock OS follows a different security update release schedule, which usually lags behind by a month or two compared to Pixels. The CalyxOS releases for it only contain the latest fixes to the open source components, such as the OS code and the Linux kernel. Proprietary components such as the bootloader, modem firmware, and other firmware get updates as soon as the stock OS update is available.
- End-of-life: The Pixel 5a (5G), 4a (5G), 5 are no longer being updated by the manufacturer, so the CalyxOS releases for these devices only contain the fixes to the open source components, such as the OS code and the Linux kernel. Proprietary components such as the bootloader, modem firmware, and other firmware no longer get updates.