> For the complete documentation index, see [llms.txt](https://docs.auterion.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.auterion.com/release-notes/auterionos/aos-for-skynode/aos-2.12/aos-2.12.8.md).

# AOS 2.12.8

## Compatibility

This version of AuterionOS comes bundled with the following APX4 release:

{% content-ref url="/pages/bvgVXAzTRPbu2Y8Oe4QZ" %}
[APX4 2.7.20](/release-notes/flight-control/apx4-2.7/apx4-2.7.20.md)
{% endcontent-ref %}

Please use the following version, or newer, of Auterion Mission Control with this version of AOS:

{% content-ref url="/pages/G1CtmOSaJ8nWv9GYmpjJ" %}
[AMC 1.19.5](/release-notes/auterion-mission-control-release-notes/amc-1.19/amc-1.19.5.md)
{% endcontent-ref %}

{% hint style="info" %}
If you are updating from a version older than 2.4, please first update to the latest 2.5 before updating to the latest version, otherwise an error message will be displayed in the Skynode web UI.
{% endhint %}

## What's new <a href="#what-improved.1" id="what-improved.1"></a>

* New PPK workflow API to show progress status in AMC
* Multi GCS support with Silvus radios
* Silvus radio autodetect. You no longer need to specify the radio IP in the AMC settings or in the AuterionOS environment variable
* New view in the Skynode web UI to monitor the logs from any application
* Include app base image by default in AuterionOS. This will make app development easier and faster.

Payloads

* Support USB camera as secondary payload. When using this configuration only the primary camera will be triggered, while the secondary one is just used for general awareness
* Nextvision
  * New LPOS mode to send angle setpoints to the payload. With this new mode the STOW mode was removed.
  * New setting to record video only on the GCS and not store any data on Skynode
  * Fallback to GRR mode when we stop object tracking or POI modes

## What improved

Payloads

* Core
  * Fix issue that could cause duplicate video streams to be sent to AMC. This could get worse over time up to the point of saturating the entire radio link.
  * Various optimizations to speed up photo download to AMC
  * Improve RAM usage and add stop taking photos if it becomes to high
  * Improve feedback to AMC after a photo is taken. Now AMC will show feedback in the UI while a photo is being captured so that the user cannot trigger the next one
  *
* Nextvision
  * Add new setting to enable and disable roll derotation
  * New setting to set payload angular offsets
* Trillium HD40LV
  * Fix video timestamp issue that could cause the switch between EO and IR to fail
  * Fix issue that caused the payload to not be detected if it took too long to boot

Radios

* Add setting to Skynode web UI to change the default radio encryption key used while pairing
* Always read settings from the Silvus radio before applying new settings such that if no settings change, nothing will be sent to the radio
* New setting to also dynamically reconfigure the radio bandwidth

Others

* Update MAVSDK version to 1.4.0