Home Assistant OS 18.1

[agners]

Home Assistant OS 18.1 is a minor release on top of 18.0. It resolves the Raspberry Pi 5 display freeze on older firmware that was present in 18.0, and brings broader Intel hardware support along with incremental Linux kernel updates across all platforms. All users are recommended to update.

Read the HAOS 18.0 release notes for the noteworthy changes in this major release.

Home Assistant Operating System

• Enable iwlmld driver for Wi-Fi 7 Intel devices (Enable iwlmld driver for Wi-Fi 7 Intel devices #4809) @agners
• busybox: Disable seedrng applet (busybox: Disable seedrng applet #4836) @agners
• busybox: Drop unused netstat applet (busybox: Drop unused netstat applet #4835) @agners
• Add usage to busybox utils (Add usage to busybox utils #4831) @mhansen
• Remove timeout from data partition resize service (Remove timeout from data partition resize service #4821) @agners

Raspberry Pi

Note

The Home Assistant OS 18.0 release has been removed from the stable channel (since OS updates are not working on old firmware and due to #4811). For users who already updated to HAOS 18.0, you may need to upgrade the Raspberry Pi 5 firmware using ha os boards raspberrypi firmware update before upgrading to the next Home Assistant OS release.

Note

The default graphics (DRM) driver on Raspberry Pi 4 has been switched from the legacy, no longer maintained FKMS driver to the modern KMS driver, which among other things enables HDMI-CEC support. This only applies to new installations. On existing ones, config.txt in the boot partition must be adjusted manually to make the switch.

• RaspberryPi: Update kernel to 6.18.34 stable_20260609 (RaspberryPi: Update kernel to 6.18.34 stable_20260609 #4814) @agners

Home Assistant Yellow

Note

The Home Assistant OS 18.0 release has been removed from the stable channel (since OS updates are not working on old firmware and due to #4811). For users who already updated to HAOS 18.0, you may need to upgrade the Raspberry Pi 5 firmware using ha os boards raspberrypi firmware update before upgrading to the next Home Assistant OS release.

Note

Currently, Raspberry Pi Firmware updates are not supported on Yellow with CM4. You have to use rpiboot method to update the firmware. The reason reported is currently unsupported_boot_device, which is not correct.

• RaspberryPi: Update kernel to 6.18.34 stable_20260609 (RaspberryPi: Update kernel to 6.18.34 stable_20260609 #4814) @agners

Home Assistant Green

• Linux: Update kernel to 6.18.37 (Linux: Update kernel to 6.18.37 #4833) @agners

Open Virtual Appliance

• Add Intel BZ and SC WiFi firmware (Add Intel BZ and SC WiFi firmware #4837) @agners
• Enable CONFIG_BT_INTEL_PCIE for Intel PCIe Bluetooth (Enable CONFIG_BT_INTEL_PCIE for Intel PCIe Bluetooth #4834) @agners
• Linux: Update kernel to 6.18.37 (Linux: Update kernel to 6.18.37 #4833) @agners
• Enable Intel NPU driver (ivpu) for x86-64 boards (Enable Intel NPU driver (ivpu) for x86-64 boards #4816) @agners

Generic x86-64

• Add Intel BZ and SC WiFi firmware (Add Intel BZ and SC WiFi firmware #4837) @agners
• Enable CONFIG_BT_INTEL_PCIE for Intel PCIe Bluetooth (Enable CONFIG_BT_INTEL_PCIE for Intel PCIe Bluetooth #4834) @agners
• Linux: Update kernel to 6.18.37 (Linux: Update kernel to 6.18.37 #4833) @agners
• Enable Intel NPU driver (ivpu) for x86-64 boards (Enable Intel NPU driver (ivpu) for x86-64 boards #4816) @agners

Hardkernel ODROID

Warning

There have been reports with HAOS 18.0 that the system was no longer bootable after the upgrade (see #4786 and #4788). So far we have not been able to reproduce the issue, and it seems to affect only a small subset of devices. Make sure to create a full backup and download it before upgrading the to latest version, just in case. If you run into the issue and are able to assist debugging the issue, please speak up on the issue tracker.

• Linux: Update kernel to 6.18.37 (Linux: Update kernel to 6.18.37 #4833) @agners
• ODROID-N2: Fall back to other slot when a kernel fails to load (ODROID-N2: Fall back to other slot when a kernel fails to load #4832) @agners

Khadas VIM Series

• Linux: Update kernel to 6.18.37 (Linux: Update kernel to 6.18.37 #4833) @agners

Generic aarch64

• Add Intel BZ and SC WiFi firmware (Add Intel BZ and SC WiFi firmware #4837) @agners
• Enable CONFIG_BT_INTEL_PCIE for Intel PCIe Bluetooth (Enable CONFIG_BT_INTEL_PCIE for Intel PCIe Bluetooth #4834) @agners
• Linux: Update kernel to 6.18.37 (Linux: Update kernel to 6.18.37 #4833) @agners

Dependencies

Dependency updates (click to expand)

• Bump actions/cache/save from 5.0.5 to 6.1.0 (Bump actions/cache/save from 5.0.5 to 6.1.0 #4841) @dependabot[bot]
• Bump actions/setup-python from 6.2.0 to 6.3.0 (Bump actions/setup-python from 6.2.0 to 6.3.0 #4840) @dependabot[bot]
• Bump release-drafter/release-drafter from 7.4.0 to 7.5.1 (Bump release-drafter/release-drafter from 7.4.0 to 7.5.1 #4839) @dependabot[bot]
• Bump actions/cache/restore from 5.0.5 to 6.1.0 (Bump actions/cache/restore from 5.0.5 to 6.1.0 #4838) @dependabot[bot]
• Bump shogo82148/actions-upload-release-asset from 1.10.1 to 1.10.2 (Bump shogo82148/actions-upload-release-asset from 1.10.1 to 1.10.2 #4797) @dependabot[bot]
• Bump release-drafter/release-drafter from 7.3.1 to 7.4.0 (Bump release-drafter/release-drafter from 7.3.1 to 7.4.0 #4798) @dependabot[bot]
• Bump actions/checkout from 6.0.3 to 7.0.0 (Bump actions/checkout from 6.0.3 to 7.0.0 #4799) @dependabot[bot]
• Bump mikepenz/action-junit-report from 6.4.1 to 6.4.2 (Bump mikepenz/action-junit-report from 6.4.1 to 6.4.2 #4800) @dependabot[bot]

[salt-peter431]

I updated from 17.3 to 18.1 with no issues. I held off on 18.0 because users were reporting problems installing on a Raspberry Pi 4. I'm running headless.

[macoca28021]

I'm still waiting for this to become a bit clearer, but I'd like to ask you: Do you boot your Raspberry Pi 4 from an SSD or an SD card? And if so, what firmware did you have?

Regards

[salt-peter431]

I boot from an NVMe SSD attached to the Pi4 via an SSD enclosure (USB-C). The Pi firmware version is 2025-05-08.

[AndersRipa]

Updated without problems from 17.3 to 18.1 without problems so far.
Running on an Raspberry Pi 5 with 16GB RAM using a Sandisk SD card (512 GB)
rpi-eeprom-update: CURRENT: Thu May 8 14:13:17 UTC 2025 (1746713597)

[ceeessbee]

..... On existing ones, config.txt in the boot partition must be adjusted manually to make the switch.

This is getting hard work for a novice like me, After winging a RPi4 with SSD firmware update for 17.3, now this for 18.1. Never touched config.txt before, do I need to, and how and what should I change? Will the update break the system if I don't change config.txt? Thanks for any help with this.

[Flotteemse]

I have also postponed the update due to this section. I feel really dumb, as it is written like it is the most simple thing in the entire world. Would be nice if it at least included the lines of code needed to write in the config.txt - whichever it is and where it is located….. :)