Changelog

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This project does NOT follow semantic versioning. The version increases as follows:

  1. Major version updates are breaking updates to the build infrastructure. These should be very rare.
  2. Minor version updates are made for every major Buildroot release. This may also include Erlang/OTP and Linux kernel updates. These are made four times a year shortly after the Buildroot releases.
  3. Patch version updates are made for Buildroot minor releases, Erlang/OTP releases, and Linux kernel updates. They're also made to fix bugs and add features to the build infrastructure.

v2.0.3

This is a security and bug fix release.

v2.0.2

This is a security update.

v2.0.1

This is a security update.

v2.0.0

This is a major update of nerves_system_rpi0_2 that changes the MicroSD/eMMC layout in order to support automatic rollback of non-working firmware updates.

IMPORTANT This is a one way upgrade. Going back to the old partitioning requires manually reflashing of the RPi's storage.

Previous releases assumed that firmware updates worked. This one requires that firmware images mark themselves as good using Nerves.Runtime.validate_firmware/0. See Nerves.Runtime for more information on this. Firmware not marked as good reverts back to the previous version.

  • Changes

    • Fix camera support by enabling the unicam-legacy Linux device driver
    • Enabled multipath TCP support in the Linux kernel
    • Deleted all use of nerves_fw_active since it was sometimes incorrect and caused confusion
    • Add gpio-poweroff overlay to support Soleil

  • Package updates

v1.33.0

This is a major Buildroot and Linux update. It should be seamless for most 1.32.0 users.

v1.32.0

This is a major Erlang and Buildroot update. This updates from Erlang/OTP 27 to Erlang/OTP 28.

v1.31.4

  • Changes
    • Synchronize and fix Raspberry Pi camera settings

v1.31.3

This is an important security/bug fix that addresses Erlang CVEs for the ssh module (see Erlang release notes).

v1.31.2

This is a security/bug fix release.

v1.31.1

This is a security/bug fix release.

v1.31.0

This is a major Buildroot update.

Please see the nerves_system_br v1.31.0 release notes for additional information if you've forked this system.

v1.30.1

This is a security/bug fix update.

v1.30.0

This is a major Buildroot update.

Please see the nerves_system_br v1.30.0 release notes for upgrade instructions if you've forked this system.

  • Changes

    • Add REUSE compliance to help improve OSS copyright and licensing accuracy
    • Update Raspberry Pi libraries and firmware to latest releases

  • Updated dependencies

    • Erlang/OTP 27.3
    • Buildroot 2024.11.2
    • Linux 6.6.74 (Raspberry Pi 1.20250127 release)
    • rpicam-apps 1.5.3
    • rpi-libcamera v0.3.2+rpt20241119
    • rpi-distro-firmware-nonfree 1:20230625-2+rpt3

v1.29.1

This is a security/bug fix update.

v1.29.0

This is a major Erlang and Buildroot update.

Please see the nerves_system_br v1.29.0 release notes for upgrade instructions if you've forked this system.

  • Changes

    • Applied and enabled the Real-Time Linux patch set, PREEMPT_RT. Please see write-ups on the web for benefits and how to use. The impact of this patch shouldn't be noticeable to most Nerves users.
    • Switch CPU frequency governor from conservative to the more modern schedutil. See LWN article for details.
    • Upgrade fwup-revert.conf to more capable fwup-ops.conf

  • Updated dependencies

v1.28.1

This is a security/bug fix update.

v1.28.0

This is a major Erlang and Buildroot.

Please see the nerves_system_br v1.28.0 release notes for upgrade instructions if you've forked this system.

  • Changes

    • Elixir 1.17 and Erlang/OTP 27 support
    • Reduce copy/pasted definitions in the fwup.conf by extracting them to fwup_include/fwup-common.conf. (No functional changes)

  • Fixes

    • The serial numbers returned by Nerves.Runtime.serial_number/0 now contain the whole serial number. If you forked this system, check the boardid.config and erlinit.config for the changes and to keep the hostname the same.

  • Updated dependencies

v1.27.1

This is a security/bug fix update.

v1.27.0

This is a major Buildroot update.

Please see the nerves_system_br v1.27.0 release notes for upgrade instructions if you've forked this system.

  • Changes

    • The libcamera and rpicam_apps packages have been replaced with the Raspberry Pi-forked versions for better compatibility. Please see nerves_system_br release notes.
    • Add back CONFIG_RASPBERRYPI_GPIOMEM to support the dht library.

  • Updated dependencies

v1.26.0

This is a major Buildroot update.

Please see the nerves_system_br v1.26.0 release notes for upgrade instructions if you've forked this system.

v1.25.1

This is a security/bug fix update.

v1.25.0

This is a major Buildroot and toolchain update that also adds support for using Scenic without customizing the system.

Please see nerves_system_br v1.25.0 release notes for upgrade instructions if you've forked this system.

v1.24.1

This is a security/bug fix update.

v1.24.0

This is a Buildroot version update that appears to mostly contain bug and security fixes. It should be a low risk upgrade from v1.23.2.

v1.23.2

v1.23.1

This is a bug and security fix update. It should be a low risk upgrade.

v1.23.0

This is a major update that brings in Erlang/OTP 26, Buildroot 2023.02.2, Linux 6.1, and Raspberry Pi firmware updates.

  • New features

    • The Raspberry Pi cameras now work with libcamera. The libcamera apps are included. See the Raspberry Pi Camera docs.
    • CA certificates are included for OTP 26.

  • Changes

    • The start.elf and fixup.dat files were renamed to start4.elf and fixup4.dat to be more consistent with the RaspberryPi OS naming.

  • Updated dependencies

Previous releases

This is a fork of nerves_system_rpi3a. See that project for previous history. The version numbers were kept for convenience.