# AOS 3.6.14

### Compatibility <a href="#compatibility" id="compatibility"></a>

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

{% content-ref url="../../../flight-control/apx4-3.1/apx4-3.1.1" %}
[apx4-3.1.1](https://docs.auterion.com/release-notes/flight-control/apx4-3.1/apx4-3.1.1)
{% endcontent-ref %}

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

{% content-ref url="../../../auterion-mission-control-release-notes/amc-1.33/amc-1.33.13" %}
[amc-1.33.13](https://docs.auterion.com/release-notes/auterion-mission-control-release-notes/amc-1.33/amc-1.33.13)
{% endcontent-ref %}

**Note:** The AMC Linux installer has been **deprecated** in favor of the Linux AppImage. Please download AMC 1.34 instead of AMC 1.33, as the Linux installer may not work seamlessly out of the box.

{% content-ref url="../../../auterion-mission-control-release-notes/amc-1.34/amc-1.34.19" %}
[amc-1.34.19](https://docs.auterion.com/release-notes/auterion-mission-control-release-notes/amc-1.34/amc-1.34.19)
{% endcontent-ref %}

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

#### Auterion Suite integration

* Improvements on the cloud deployments infrastructure
* Enable manifest deployment from Suite. This allows deploying fleet wide APX4 parameters
* Log OEM custom software version into the ULOG

#### Payloads <a href="#payloads-1" id="payloads-1"></a>

* Video streaming multicast support also when using RTSP protocol
* KLV metadata streaming support also when using RTP over UDP
* Nextvision: new laser support

#### Radios <a href="#radios" id="radios"></a>

* Silvus: multicast support for video streaming

### What improved <a href="#what-improved" id="what-improved"></a>

#### Payloads <a href="#payloads-1" id="payloads-1"></a>

* Fix to reduce mpegts video streaming latency
* Fix to improve udp multicast video streaming stability
* Fix memory issue that would cause payloads to stop working in very long flights (eg. >1.5 hours)
* Fix gimbal attitude in EXIF metadata
* Fix stream [type](https://mavlink.io/en/messages/common.html#VIDEO_STREAM_TYPE) field in the VIDEO\_STREAM\_INFORMATION MAVLink message. AuterionOS currently supports options 0, 1 and 3.
* Nextvision: enable UPOS setting only on Trip2 hardware versions greater than 1.4.36
* Trillium: enable laser illuminator setting only on Trillium software versions greater than 1.5.900

#### Radios <a href="#radios" id="radios"></a>

* Silvus: fix driver crash caused by the GPS beacon sent by the radio
* Silvus: fix SNR reporting when the value is invalid

#### App Development

* Fix issue that would cause the DDS network to not work when using the Auterion App API v5
* Add default DDS configuration to all AuterionOS Apps that don't ship with their custom configuration. This feature requires at least API v4. More information about this API change is documented [here](https://docs.auterion.com/app-development/app-framework/dds-ros2-configuration)

**Data Logger (ULOG)**

* Fix issue in the ULOG logger that could cause high CPU loads and sometimes to not generate the ULOG
* Add CPU and RAM usage to ULOG
* Robustify the FMU hardfault log monitoring from the mission computer

#### Others <a href="#others" id="others"></a>

* Implemented a recovery mechanism for root and var partition mismatches at boot, thus fixing an issue that prevented devices from being updated
* Fixed an issue that would occasionally cause the Skynode Ethernet interfaces to not come up at boot
* Fix bug that could cause APX4 airframe files to fail to copy from the Mission computer onto the FMU
* Reduce resource usage when streaming vehicle telemetry to Auterion Suite
* Improve caching for better performance in the AuterionOS web UI
* Fix issue where the mission computer failed to query the FMU's UID2 identifier at boot