# Changelog
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.
## v0.18.0
This is a major Buildroot update.
Please see the [nerves_system_br v1.27.0 release notes](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.26.0)
for upgrade instructions if you've forked this system.
* Updated dependencies
* [nerves_system_br v1.27.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.27.0)
* [Buildroot 2024.02](https://lore.kernel.org/buildroot/87msrczp4z.fsf@48ers.dk/)
* [Erlang/OTP 26.2.3](https://erlang.org/download/OTP-26.2.3.README)
## v0.17.0
This is a major Buildroot update.
Please see the [nerves_system_br v1.26.0 release notes](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.26.0)
for upgrade instructions if you've forked this system.
* Updated dependencies
* [Erlang/OTP 26.2.2](https://erlang.org/download/OTP-26.2.2.README)
* [nerves_system_br v1.26.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.26.1)
* [Buildroot 2023.11.1](https://lore.kernel.org/buildroot/87cyu2k2gu.fsf@48ers.dk/T/)
## v0.16.1
This is a security/bug fix update.
Package updates
* [Erlang/OTP 26.2.1](https://erlang.org/download/OTP-26.2.1.README)
* [nerves_heart 2.3.0](https://github.com/nerves-project/nerves_heart/releases/tag/v2.3.0)
## v0.16.0
This is a major Buildroot and toolchain update.
Please see [nerves_system_br v1.25.0 release notes](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.25.0)
for upgrade instructions if you've forked this system.
* Updated dependencies
* [nerves_system_br v1.25.2](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.25.2)
* [Buildroot 2023.08.4](https://lore.kernel.org/buildroot/87o7f6t7fs.fsf@48ers.dk/T/)
* [Erlang/OTP 26.1.2](https://erlang.org/download/OTP-26.1.2.README)
## v0.15.1
This is a security/bug fix update.
* Package updates
* [nerves_system_br v1.24.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.24.1)
* [Erlang/OTP 26.1.1](https://erlang.org/download/OTP-26.1.1.README)
* [Buildroot 2023.05.3](https://lore.kernel.org/buildroot/87h6ngup34.fsf@48ers.dk/T/)
## v0.15.0
This is a Buildroot version update that appears to mostly contain bug and
security fixes. It should be a low risk upgrade from v0.14.2.
* Updated dependencies
* [nerves_system_br v1.24.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.24.0)
* [Buildroot 2023.05.2](https://lore.kernel.org/buildroot/87ledrkrpp.fsf@48ers.dk/T/), [2023.05.1](https://lore.kernel.org/buildroot/87351m8qm4.fsf@48ers.dk/T/), [2023.05](https://lore.kernel.org/buildroot/87r0qn2c77.fsf@48ers.dk/T/)
* [Erlang/OTP 26.1](https://erlang.org/download/OTP-26.1.README)
## v0.14.2
* Updated dependencies
* [nerves_system_br v1.23.3](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.23.3)
## v0.14.1
This is a bug and security fix update. It should be a low risk upgrade.
* Fixes
* Fix CTRL+R over ssh
* Updated dependencies
* [nerves_system_br v1.23.2](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.23.2)
* [Buildroot 2023.02.2](https://lore.kernel.org/buildroot/87y1je6wva.fsf@48ers.dk/T/)
## v0.14.0
This is a major update that brings in Erlang/OTP 26 and Buildroot 2023.02.2.
* New features
* CA certificates are included for OTP 26.
* Updated dependencies
* [nerves_system_br v1.23.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.23.1)
* [Buildroot 2023.02.2](https://lore.kernel.org/buildroot/87wn03ifbl.fsf@48ers.dk/T/)
* [Erlang/OTP 26.0.2](https://erlang.org/download/OTP-26.0.2.README)
## v0.13.2
This is a bug and security fix update. It should be a low risk upgrade.
* Updated dependencies
* [nerves_system_br v1.22.5](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.22.5)
* [Buildroot 2022.11.3](https://lore.kernel.org/buildroot/878rfuxbxx.fsf@dell.be.48ers.dk/T/)
## v0.13.1
This is a bug fix and Erlang version bump from 25.2 to 25.2.3. It should be a
low risk upgrade.
* Fixes
* Set Erlang crash dump timer to 5 seconds, so if an Erlang crash dump does
happen, it will run for at most 5 seconds. See erlinit.conf.
* Updated dependencies
* [nerves_system_br v1.22.3](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.22.3)
* [Buildroot 2022.11.1](https://lore.kernel.org/buildroot/87ilh4dvax.fsf@dell.be.48ers.dk/T/#u)
## v0.13.0
This is a Buildroot version update that appears to mostly contain bug and
security fixes. It should be a low risk upgrade.
* Updated dependencies
* [nerves_system_br v1.22.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.22.1)
* [Buildroot 2022.11](http://lists.busybox.net/pipermail/buildroot/2022-December/656980.html)
* GCC 12.2
## v0.12.2
* Changes
* Two Buildroot patch updates and an Erlang minor version update
* Nerves Heart v2.0 is now included. Nerves Heart connects the Erlang runtime
to a hardware watchdog. v2.0 has numerous updates to improve information
that you can get and also has more safeguards to avoid conditions that could
cause a device to hang forever.
* Updated dependencies
* [nerves_system_br v1.21.6](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.21.6)
* [Erlang/OTP 25.2](https://erlang.org/download/OTP-25.2.README)
* [Buildroot 2022.08.3](https://lore.kernel.org/buildroot/87r0x7z5cw.fsf@dell.be.48ers.dk/T/#u)
* [nerves_heart v2.0.2](https://github.com/nerves-project/nerves_heart/releases/tag/v2.0.2)
## v0.12.1
* Changes
* Fix regression when building on x86_64 Linux where wrong toolchain was used.
* Updated dependencies
* [nerves_system_br v1.21.2](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.21.2)
* [Erlang/OTP 25.1.2](https://erlang.org/download/OTP-25.1.2.README)
## v0.12.0
* Changes
* Support aarch64 Linux builds
* Add libdtc to support runtime loading of device tree overlays
* Updated dependencies
* [nerves_system_br v1.21.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.21.1)
and also see [nerves_system_br v1.21.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.21.0)
* [Buildroot 2022.08.1](http://lists.busybox.net/pipermail/buildroot/2022-October/652816.html)
* [Erlang/OTP 25.1.1](https://erlang.org/download/OTP-25.1.1.README)
## v0.11.2
* Updated dependencies
* [nerves_system_br v1.20.6](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.20.6)
* [Erlang/OTP 25.0.4](https://erlang.org/download/OTP-25.0.4.README)
* [Buildroot 2022.05.2](http://lists.busybox.net/pipermail/buildroot/2022-August/650546.html)
* Also see [Buildroot 2022.05.1 changes](http://lists.busybox.net/pipermail/buildroot/2022-July/647814.html)
## v0.11.1
* Updated dependencies
* [nerves_system_br v1.20.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.20.4)
* [Erlang/OTP 25.0.3](https://erlang.org/download/OTP-25.0.3.README)
## v0.11.0
This release updates to Buildroot 2022.05 and uses GCC 11.3 (from GCC 10.3).
* Updated dependencies
* [nerves_system_br v1.20.3](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.20.3)
* [Buildroot 2022.05](http://lists.busybox.net/pipermail/buildroot/2022-June/644349.html)
* [Erlang/OTP 25.0.2](https://erlang.org/download/OTP-25.0.2.README)
## v0.10.0
This release updates to Buildroot 2022.02.1 and OTP 25.0. While this should be
an easy update for most projects, many programs have been updated. Please review
the changes in the updated dependencies for details.
* Updated dependencies
* [nerves_system_br v1.19.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.19.0)
* [Buildroot 2022.02.1](http://lists.busybox.net/pipermail/buildroot/2022-April/640712.html). Also see [Buildroot 2022.02](http://lists.busybox.net/pipermail/buildroot/2022-March/638160.html)
* [Erlang/OTP 25.0](https://erlang.org/download/OTP-25.0.README)
## v0.9.4
This release bumps Erlang to 24.3.2 and should be a low risk upgrade from the
previous release.
* Updated dependencies
* [nerves_system_br v1.18.6](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.18.6)
## v0.9.3
This is a Buildroot and Erlang bug and security fix release. It should be a low
risk upgrade from the previous release.
* Updated dependencies
* [nerves_system_br v1.18.5](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.18.5)
## v0.9.2
This is a Buildroot and Erlang bug fix release. It should be a low risk upgrade
from the previous release.
* Updated dependencies
* [nerves_system_br v1.18.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.18.4)
* Changes
* Specify CPU-specific flags when compiling NIFs and ports. This fixes an
issue where some optimizations could not be enabled in NIFs even though it
should be possible to have them. E.g., ARM NEON support for CPUs that have
it.
## v0.9.1
* Updated dependencies
* [nerves_system_br v1.18.3](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.18.3)
* Changes
* Programs that use OpenMP will run now. The OpenMP shared library
(`libgomp.so`) was supplied by the toolchain, but not copied.
## v0.9.0
This release updates to Buildroot 2021.11 and OTP 24.2. If you have made a
custom system, please review the `nerves_system_br` [release
notes](https://github.com/nerves-project/nerves_system_br/blob/v1.18.2/CHANGELOG.md#v1180).
* Updated dependencies
* [nerves_system_br v1.18.2](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.18.2)
* [Buildroot 2021.11](http://lists.busybox.net/pipermail/buildroot/2021-December/629911.html)
* [Erlang/OTP 24.2](https://erlang.org/download/OTP-24.2.README)
* GCC 10.3
* Improvements
* Support for the `dl.nerves-project.org` backup site. Due to a GitHub outage
in November, there was a 2 day period of failing builds since some packages
could not be downloaded. We implemented the backup site to prevent this in
the future. This update is in the `nerves_defconfig`.
* Use new build ORB on CircleCI. This ORB will shorten build times to fit in
CircleCI's new free tier limits. Please update if building your own systems.
## v0.8.3
* Updated dependencies
* [nerves_system_br v1.17.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.17.4)
* [Buildroot 2021.08.2](http://lists.busybox.net/pipermail/buildroot/2021-November/628323.html)
* [Erlang/OTP 24.1.7](https://erlang.org/download/OTP-24.1.7.README).
## v0.8.2
* Updated dependencies
* [nerves_system_br v1.17.3](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.17.3)
* [Erlang/OTP 24.1.4](https://erlang.org/download/OTP-24.1.4.README).
## v0.8.1
This is a security/bug fix patch release. It should be safe to update for
everyone.
* Updated dependencies
* [nerves_system_br v1.17.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.17.1)
* [Buildroot 2021.08.1](http://lists.busybox.net/pipermail/buildroot/2021-October/625642.html)
* [Erlang/OTP 24.1.2](https://erlang.org/download/OTP-24.1.2.README)
* Improvements
* Include software versioning and licensing info (see legal-info directory in
artifact)
## v0.8.0
This release updates to Buildroot 2021.08 and OTP 24.1. If you have made a
custom system off this one, please review the `nerves_system_br v1.17.0` release
notes.
* Updated dependencies
* [nerves_system_br v1.17.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.17.0)
* [Buildroot 2021.08](http://lists.busybox.net/pipermail/buildroot/2021-September/622072.html)
* [Erlang/OTP 24.1](https://erlang.org/download/OTP-24.1.README)
## v0.7.2
This release updates Erlang/OTP from 24.0.3 to 24.0.5 and Buildroot from 2021.05
to 2021.05.1. Both of these are security/bug fix updates. This is expected to be
a safe upgrade from v1.16.1 for all users.
* Updated dependencies
* [nerves_system_br v1.16.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.16.1)
* [Erlang/OTP 24.0.5](https://erlang.org/download/OTP-24.0.5.README)
* Improvements
* Beta support for using a `runtime.exs` script for runtime configuration.
* Added a `provision` task to the `fwup.config` to enable re-provisioning a
MicroSD card without changing its contents.
* Adds a default `/etc/sysctl.conf` that enables use of ICMP in Erlang. This
requires `nerves_runtime v0.11.5` or later to automatically load the sysctl
variables. With it using `:gen_udp` to send/receive ICMP will "just work".
It also makes it easier to add other sysctl variables if needed.
## v0.7.1
This release updates Nerves Toolchains to v1.4.3 and OTP 24.0.3. It should be safe for everyone to apply.
* Updated dependencies
* [nerves_system_br v1.16.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.16.1)
* [Erlang/OTP 24.0.3](https://erlang.org/download/OTP-24.0.3.README)
* [nerves toolchains v1.4.3](https://github.com/nerves-project/toolchains/releases/tag/v1.4.3)
## v0.7.0
This release updates to Buildroot 2021.05 and OTP 24.0.2. If you have made a
custom system off this one, please review the `nerves_system_br v1.16.0` release
notes.
* Updated dependencies
* [nerves_system_br v1.16.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.16.0)
* [Buildroot 2021.05](http://lists.busybox.net/pipermail/buildroot/2021-June/311946.html)
* [Erlang/OTP 24.0.2](https://erlang.org/download/OTP-24.0.2.README)
* Improvements
* This release now contains debug symbols and includes the Build-ID in the
ELF headers. This makes it easier to get stack traces from C programs. As
before, the Nerves tooling strips all symbols from firmware images, so this
won't make programs bigger.
* Enable compile-time `wpa_supplicant` options to support WPA3, mesh
networking, WPS and autoscan.
## v0.6.1
This is a security/bug fix release that updates to Buildroot 2021.02.1 and OTP
23.3.1. It should be safe for everyone to apply.
* Updated dependencies
* [nerves_system_br v1.15.1](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.15.1)
* [Buildroot 2021.02](http://lists.busybox.net/pipermail/buildroot/2021-April/307970.html)
* [Erlang/OTP 23.3.1](https://erlang.org/download/OTP-23.3.1.README)
## v0.6.0
This release updates to Buildroot 2021.02 and OTP 23.2.7. If you have made a
custom system off this one, please review the `nerves_system_br v1.15.0` release
notes.
The Nerves toolchain has also been updated to v1.4.2. This brings in Linux 4.14
headers to enable use of cdev and eBPF. This won't affect most users.
* Updated dependencies
* [nerves_system_br v1.15.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.15.0)
* [Buildroot 2021.02](http://lists.busybox.net/pipermail/buildroot/2021-March/305168.html)
* [Erlang/OTP 23.2.7](https://erlang.org/download/OTP-23.2.7.README)
* [nerves toolchains v1.4.2](https://github.com/nerves-project/toolchains/releases/tag/v1.4.2)
## v0.5.0
This release updates to Buildroot 2020.11.2, GCC 10.2 and OTP 23.2.4.
When migrating custom systems based, please be aware of the following important
changes:
* There's a new `getrandom` syscall that is made early in BEAM startup. This has
the potential to block the BEAM before Nerves can start `rngd` to provide
entropy. We have not seen this issue here, but have updated `erlinit.config`
for the time being as a precaution.
* The GCC 10.2.0 toolchain has a different name that calls out "nerves" as the
vendor and the naming is now more consistent with other toolchain providers.
* Experimental support for tooling that requires more information about the
target has been added. The initial support focuses on zigler.
* Updated dependencies
* [nerves_system_br: bump to v1.14.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.14.4)
* [Buildroot 2020.11.2](http://lists.busybox.net/pipermail/buildroot/2021-January/302574.html)
* [Erlang/OTP 23.2.4](https://erlang.org/download/OTP-23.2.4.README)
* [Nerves toolchains 1.4.1](https://github.com/nerves-project/toolchains/releases/tag/v1.4.1)
## v0.4.3
This is a bug fix release and contains no major changes.
* Updated dependencies
* [nerves_system_br: bump to v1.13.7](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.13.7)
* [Erlang/OTP 23.1.5](https://erlang.org/download/OTP-23.1.5.README)
## v0.4.2
This release includes a patch release update to
[Buildroot 2020.08.2](http://lists.busybox.net/pipermail/buildroot/2020-November/296830.html).
* Updated dependencies
* [nerves_system_br: bump to v1.13.5](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.13.5)
* [erlinit 1.9.0](https://github.com/nerves-project/erlinit/releases/tag/v1.9.0)
## v0.4.1
* Updated dependencies
* [nerves_system_br: bump to v1.13.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.13.4)
* [Erlang/OTP 23.1.4](https://erlang.org/download/OTP-23.1.4.README)
* [boardid 1.10.0](https://github.com/nerves-project/boardid/releases/tag/v1.10.0)
* Improvements
* Enabled reproducible builds in Buildroot to remove some timestamp and build
path differences in firmware images. This helps delta firmware updates.
## v0.4.0
This release updates to [Buildroot
2020.08](http://lists.busybox.net/pipermail/buildroot/2020-September/290797.html) and OTP 23.1.1.
* Updated dependencies
* [nerves_system_br: bump to v1.13.2](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.13.2)
* [Erlang/OTP 23.1.1](https://erlang.org/download/OTP-23.1.1.README)
* [erlinit 1.8.0](https://github.com/nerves-project/erlinit/releases/tag/v1.8.0)
* [nerves 1.7.0](https://github.com/nerves-project/nerves/releases/tag/v1.7.0)
* New features
* Added support for updating the root filesystem using firmware patches.
See the [firmware patch docs](https://hexdocs.pm/nerves/experimental-features.html#content) for more information.
## v0.3.2
This release updates to [Buildroot
2020.05.1](http://lists.busybox.net/pipermail/buildroot/2020-July/287824.html)
and OTP 23.0.3 which are both bug fix releases.
* Updated dependencies
* [nerves_system_br: bump to v1.12.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.12.4)
* [Erlang/OTP 23.0.3](https://erlang.org/download/OTP-23.0.3.README)
* [nerves_heart v0.3.0](https://github.com/nerves-project/nerves_heart/releases/tag/v0.3.0)
* New features
* The `/data` directory now exists for storing application-specific data. It
is currently a symlink to `/root`. Using `/data` will eventually be
encouraged over `/root` even though currently there is no advantage. This
change makes it possible to start migrating paths in applications and
libraries.
* Fixes
* Fixed old references to the `-Os` compiler flag. All C/C++ code will default
to using `-O2` now.
## v0.3.1
* Fixes
* Remove `nerves_system_linter` from hex package. This fixes mix dependency
errors in projects that reference systems with different
`nerves_system_linter` dependency specs.
## v0.3.0
This release updates the system to use Buildroot 2020.05 and Erlang/OTP 23.
Please see the respective release notes for updates and deprecations in both
projects for changes that may affect your application.
* New features
* Enable WiFi mesh support in the 802.11 stack
* Updated dependencies
* [nerves_system_br v1.12.0](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.12.0)
* [Erlang/OTP 23.0.2](https://erlang.org/download/OTP-23.0.2.README)
## v0.2.0
* Updated dependencies
* [nerves_system_linter v0.4.0](https://github.com/nerves-project/nerves_system_linter/releases/tag/v0.4.0)
## v0.1.0
* Initial release
* [nerves_system_br v1.11.4](https://github.com/nerves-project/nerves_system_br/releases/tag/v1.11.4)
* Erlang 22.3.4.1
* fwup 1.7.0
