CYRONIX OS 1.5.1.
RELEASE SPECIFICATIONS.

Published 22 September 2026. The primary release candidate signed with isolated CYRONIX private release keys and verified across physical hardware.

Key Highlights in 1.5.1

CYRONIX OS Identity: Settings > About reads "CYRONIX OS 1.5.1 (RQ3A.211001.001)" and system properties carry ro.build.tags=release-keys.
Private Key Signing: First production release candidate signed with private CYRONIX keys generated outside the source tree.
Kernel Hardening: Yama LSM ptrace restriction, software PAN, PANIC_ON_OOPS, removed KALLSYMS_ALL & Magic SysRq.
USB Restricted Mode: Enabled by default on locked devices; refuses BadUSB and forensic extraction rigs.
Lock-Screen Privacy: Notification previews masked until device is unlocked.
Security Center 2.0: Verifies kernel sysctls, Private DNS, and update certificate trust.

Package: CYRONIX-OS-1.5.1-20260922-user-oneplus3.zip

Size: 809,059,475 bytes (771.5 MB)

SHA-256: c0cc8310d6fd8deb6e8a2f0abfe6d960948d03dac5cd5c37cca3f8dc803fcf9e

Certificate: CN=CYRONIX OS (81:12:2A:86…7F:16)