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Important AREDN Patch

 

Recently the AREDN devs found a memory leak in the Babel source code. A ticket was opened with the upstream project, and a locally-derived patch implemented.

 

So - if you have a node with 64 MB of RAM that's moderately busy with Babel traffic, it'll run out of memory sooner or later (possibly sooner). If the node has 128 MB of RAM and isn't especially busy you might not ever see the node run out of RAM in between reboots.

 

What happens when a Linux machine runs out of RAM? Before that happens, the OOM (Out Of Memory)-killer kicks in. It tries to kill off processes that it deems least impactful, but rarely succeeds. So you end up with a misbehaving or non-functional node, only restored by rebooting.

 

So, consider updating your nodes to the latest nightly build, in order to incorporate the patch for this memory leak.

Updated date: Saturday, September 12, 2026 - 10:01


Upcoming Nightly Builds


The next series of AREDN nightly builds contain significant changes to how we manage a device’s network. This includes supporting the mesh on multiple radios at the same time (a long requested feature) and removing the need to provide IP addresses for tunnels and xlinks, making the creation of these much simpler.

These changes are not backward compatible, so once a new nightly is installed you cannot restore to 4.26.7.0 without doing a fresh install, and then using a previously created backup

So - do not upgrade to a nightly build unless you have already backed it up, and have physical access in case of issues.

The AREDN Dev team

Updated date: Wednesday, July 15, 2026 - 19:03


AREDN Release 4.26.7.0 available

 
The AREDN team is proud to announce AREDN production release 4.26.7.0.  Features and fixes are listed below. For the gory details, go to the ChangeLog:
Enjoy!
The AREDN Dev Team.


Major Features

Updated to OpenWRT 25.12.5

OpenWRT 25.12 brings a new package manager - apk. If you are currently using side-loaded .ipk packages, these cannotbe updated when AREDN is updated as they are no longer compatible and will be removed.

Faster network changes

You can now add, remove, or update tunnels without restarting the entire network stack. It’s a lot faster and less disruptive.

Improved HaLow 802.11ah support

Updated to the latest Morse Micro 1.17.9 drivers which improves stability and performance of Halow links.

Support for MediaTek WiFi-6 AX devices

Improved support for AX radio based devices. Note that these radios come with a number of limitations, including only supporting 20 MHz or greater bandwidth.

Zyxel radios

Zyxel is a new manufacturer to AREDN. We support the NWA55AXE. It is the only outdoor rated AX radio supported by OpenWRT, and has connectorized antennas so can be attached to your antenna of choice.

Supernode Babel improvements

...

Read More
Updated date: Saturday, July 11, 2026 - 20:53


Introducing an AREDN Chat client

Meshchat has been the go-to chat client for most users of AREDN networks. But because AREDN is a communications network software, and the core team has been reluctant to move into apps, support of Meshchat has been hit-and miss.

So the AREDN team has decided to step up to the plate with an AREDN-supported chat client, called Raven. It has a nice set of features:

  • Realtime text messaging.

  • Runs on any AREDN-supported hardware that's running current AREDN software (but see recommendations in the wiki).

  • Can communicate with other Raven clients via AREDN.

  • Can communicate between AREDN meshes via Supernodes

  • Supports talking on a Meshtastic network (requires additional hardware)

  • Supports talking on a Meshcore network (required additional hardware, and integration is very involved. Documentation will eventually be provided).

  • Supports multiple channels per node.

  • Supports sharing images.

  • Supports sharing Winlink forms.

Not compatible with MeshChat (it...

Read More
Updated date: Sunday, March 29, 2026 - 21:13

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Announcements


NG1P April 2022 Wireless Mesh Using AREDN

Bill Richardson NG1P presents his views on organizing an AREDN mesh network in Maine at the ARRL Convention in Lewiston, Maine on April 1 and 2, 2022. 
The presentation is here.


AE6XE on YouTube Hamfest 23 May 2020

Joe AE6XE described typical AREDN deployment scenarios with Ham Radio 2.0 host Jason KC5HWB. He offered advice on how to get started and choosing suitable devices.
His presentation slide deck is here.

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