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PhyOS 5

This page documents releases, improvements, and fixes for the PhyOS 5.x series, listed in descending order (newest first).

PhyOS 5.16.0 (Current Release)

Release Date: June 1, 2026 Status: Released

Download Links

New Features

None

Bug Fixes

  • Reboot Sync Hang: Fixed a rare issue where a device could hang during reboot, starting the shutdown sequence but never coming back up without an on-site power cycle, caused by the final storage sync stalling on affected hardware.
  • OpenShift Partition Auto-Expand: Fixed boot-time root partition auto-expansion that was silently skipped when the disk is exposed as /dev/sda (SCSI). The root disk is now detected dynamically instead of assuming /dev/vda, so the partition expands to fill the disk on both SCSI and virtio-blk deployments.

PhyOS 5.14.0

Release Date: May 14, 2026 Status: Released

Download Links

New Features

  • Reduced EFI Partition Size: Reduced the EFI partition size from 4 GB to 1 GB across all platforms, freeing additional storage for application use.

Bug Fixes

  • Screen App Connectivity: Fixed a regression introduced by the Bun binary migration in 5.12.13 that prevented some screen apps from connecting to PhyHub.
  • Screenshot Uploads: Fixed a regression introduced by the Bun binary migration in 5.12.13 that prevented periodic screenshot uploads from screen apps to PhyHub.
  • Edge App Docker Image Cleanup: Fixed a race condition that could cause a freshly pulled Edge app Docker image to be deleted immediately after pull, requiring a re-pull on the next deployment cycle.

PhyOS 5.12.13

Release Date: April 14, 2026 Status: Released

Download Links

New Features

  • Bun Binary Distribution: Introduced standalone Bun-compiled binaries for phyctl and phydevice, reducing runtime dependencies and installation footprint on devices
  • physcreen-manager Binary: Added physcreen-manager as a standalone binary for improved startup performance and leaner on-device delivery
  • Hardened SSH Configuration: Restricted SSH to strong ciphers, modern MACs, and secure host key algorithms, rejecting weak legacy algorithms
  • DNS Recursion Lockdown: Enhanced network security by binding dnsmasq to localhost only, preventing external DNS recursion and amplification attacks

Bug Fixes

None

PhyOS 5.12.9

Release Date: February 11, 2026 Status: Released

Download Links

New Features

None

Bug Fixes

  • Touch Screen Gestures: Fixed edge swipe gestures on touch displays inadvertently triggering navigation to blank screen

PhyOS 5.12.8

Release Date: February 6, 2026 Status: Released

Download Links

New Features

  • TPM 2.0 Support: Integrated Trusted Platform Module (TPM) 2.0 for hardware-based secure key storage
  • Installer UI Update: Enhanced installer user interface for improved system installation experience
  • Delta Phyupgrade Support: Introduced delta updates for PhyOS, significantly reducing the OS upgrade download size to approximately 1/20th of a full OS image
  • Edge App Version Management: Optimized storage use through automated clearing of previous edge app images, retaining only the two most recent versions

Bug Fixes

  • Edge App Time Zone: Edge apps now adhere to the time zone configuration of the PhyOS host system
  • Docker Log Management: Enhanced management of Docker logs and improved error handling
  • PhyOS VM Creation: Improved handling of interrupted PhyOS downloads during VM creation in PhyCLI

PhyOS 5.10.1

Release Date: January 6, 2026 Status: Released

Download Links

New Features

  • Chromium Update: Updated Chromium browser to version 143.0.0 for improved security and performance
  • WiFi Driver Support: Added Realtek RTL8821CU WiFi driver support

Bug Fixes

  • Proxy Plugin Compatibility: Fixed proxy plugin compatibility issues with new app boot process and certain new applications

PhyOS 5.8.1

Release Date: December 18, 2025 Status: Released

Download Links

New Features

  • Added platform support: PhyOS can now be deployed on Advantech MIC-733-A0-5A1

Bug Fixes

  • Phyhub Device Storage Information: Corrected inaccurate device storage information displayed in Console to ensure accurate reporting

PhyOS 5.6.0

Release Date: December 9, 2025 Status: Released

Download Links

New Features

  • Added platform support: PhyOS can now be deployed on Advantech MIC-711-ON-3A1
  • Splash Screen Update: Updated splash screen logo from ‘phygrid’ to ‘phystack’ for consistent branding

Bug Fixes

None

PhyOS 5.4.1

Release Date: November 25, 2025 Status: Released

Download Links

New Features

  • PhyOS Username Update: Changed default phyos username from ‘phygrid’ to ‘phystack’ for consistent branding
  • CLI File Transfer Support: Enabled compatibility with @phystack/cli ‘phy dev cp’ command for file copying between local machine and the phyos device

Bug Fixes

  • Core Dump Directory Permissions: Configured coredump storage directory with appropriate permissions to ensure containers can write core dump files to host

Note

Starting with PhyOS 5.4.1, the default username has changed from ‘phygrid’ to ‘phystack’. Requires @phystack/cli version 4.4.48 or higher for compatibility.

PhyOS 5.2.3

Release Date: November 17, 2025 Status: Released

Download Links

New Features

  • Docker Core Dump Reporting: Extended crash alerts to automatically generate and report core dumps file path for failed containers
  • Dynamic Audio Device Detection: Added dynamic audio device detection and audio configuration support
  • Network DNS Configuration: Removed default fallback DNS servers (Google and Cloudflare)

Bug Fixes

  • physcreen: Remove egl flag to resolve physcreen stability issues

PhyOS 5.2.0

Release Date: October 16, 2025 Status: Released

Download Links

New Features

  • Jetson Orin Nano Support: Added full support for Jetson Orin Nano developer kit
  • Enhanced Installer UI: Improved installer UI for AMD64 and DN74 platforms with system information menu and installation progress bar
  • Hardware-Accelerated Video Playback: Enabled hardware-accelerated video playback on Jetson Orin Nano developer kit

Bug Fixes

None

PhyOS 5.0.174

Release Date: October 3, 2025 Status: Released

Download Links

New Features

  • QCOW2 Automatic Storage Expansion: QCOW2 images now automatically expand zpool storage on first boot when deployed on OpenShift

Bug Fixes

None

PhyOS 5.0.173

Release Date: September 1, 2025 Status: Released

Download Links

New Features

None

Bug Fixes

  • Fixed video freeze caused by zero-copy GBM path (completely disabled)
  • Fixed missing initial journalctl logs for phydevice during first boot

PhyOS 5.0.171

Release Date: August 28, 2025 Status: Released

Download Links

New Features

None

Bug Fixes

  • Fixed device crash when provisioning is attempted during first boot
  • Fixed display freeze during extended runtime (overnight operation)

PhyOS 5.0.170

Release Date: August 26, 2025 Status: Released

Download Links

New Features

  • Persistent System Logging: System logs (physcreen-manager, phydevice, and system-level logs) are now persistent across reboots
  • Enhanced Debugging: All logs are accessible via the journalctl command for improved debugging and monitoring capabilities

Bug Fixes

None

PhyOS 5.0.165

Release Date: July 14, 2025 Status: Released

Download Links

New Features

None

Bug Fixes

  • Fixed device identification issue with duplicate serial numbers

PhyOS 5.0.164

Release Date: July 9, 2025 Status: Released

Download Links

New Features

  • Enhanced Docker Image Support: Improved support for Docker images hosted on docker.io registry

Bug Fixes

None