New official Nerves systems are available that use nerves_system_br v1.18.4 . If you’re using a v1.18.x system already, this is a straightforward update. If you have made a custom Nerves system from a previous release, please see the v1.18.0 release notes for upgrading.
Here are the most visible updates from v1.18.3 to v1.18.4:
- Erlang/OTP 24.2.1
- Buildroot 2021.11.1
- Processor-specific GCC options are now passed to NIFs and ports. This makes some more optimizations possible and enables features like NEON on some ARM processors.
As part of the Buildroot patch release, Nerves now uses OpenSSL 1.1.1m. This OpenSSL update detects redundant OpenSSL Engine loads which were possible if you were using the NervesKey PKCS#11 library. This is a subtle issue that affects many AWS IoT, Google Cloud, and NervesHub users.
BeagleBone and AM3358 users: nerves_system_bbb v2.13.2 now supports dual Ethernet boards and the Beaglebone Blue.
Raspberry Pi and Beaglebone users: WireGuard is available now in your systems. The plan is to include WireGuard on other Nerves systems once their Linux kernel is updated to 5.10. This only includes the small kernel device driver. Userland WireGuard tools should be brought in with your projects. This enables remote access to Nerves devices via a private VPN. Currently this feature requires low-level networking and VPN knowledge to configure.
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