ACAP version 12.9 – February 27, 2026

Overview

The release contains:

• ACAP Native SDK 12.9.0
• ACAP Runtime 2.0.1 (Release notes)
• Docker ACAP 3.0.3 (Release notes)
• Docker Compose ACAP 3.0.3 (Release notes)

Code examples:

• Code examples ACAP Native SDK 12.9.0 (Release notes)
• Code examples ACAP Computer Vision Solution 12.9.0 (Release notes)

Device software:

• Minimum AXIS OS version: 12.9

New additions

None in this release.

Changes

• API:
  • The Nexus API introduced in 12.8 has been removed from the SDK because C++ APIs cannot guarantee forward ABI compatibility across AXIS OS upgrade due to compiler and toolchain variations. We are developing a replacement Nexus C API with ABI compatibility guarantees, planned for release in AXIS OS 12.10. This is a breaking change but acceptable under Beta API terms. For additional technical details and updates. See the GitHub discussion.
  • cURL has been upgraded from 8.17.0 to 8.18.0 to increase overall cybersecurity level.
• ACAP application examples:
  • The vdostream example has been updated with support for RGB and AV1 formats.
    • AV1 is supported on ARTPEC-9 devices.
    • RGB is supported on ARTPEC-9 and CV25 devices.
  • The object-detection and object-detection-yolov5 examples have been updated to use the larodBuildTensorDims, larodBuildTensorPitches, and larodConvertVmemFdToDmabuf convenience functions introduced in 12.7. The examples also add support for global rotation handling, viewarea configuration, and have been restructured for improved code organization.

Bug fixes

• Machine learning API (Larod): Fixed an issue where object detection models would either fail to load or run very slowly on ARTPEC-9 devices.
• Parameter API: The ax_parameter_add() function now accepts both short parameter name and the fully qualified path, consistent with other Parameter API functions. This was discovered through a community contribution by @lucky-rydar to the axparameter example.

Upcoming changes

• Starting from 12.10, OpenSSL will transition from version 3.0 LTS to 3.5 LTS, which will significantly enhance the overall security posture of applications and prolong support. OpenSSL 3.0 and 3.5 are API/ABI compatible as detailed in the OpenSSL release strategy, ensuring a smooth transition. This update will also remove TLS 1.1 and phase out RSA 1024 keys. Existing devices can still upgrade firmware with them, but factory defaulted devices will not support them.

APIs supported in this release

Axis API	Chip
Axoverlay API	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6
Bounding Box API	ARTPEC-9, ARTPEC-8, ARTPEC-7, CV25
Edge storage API	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
Event API	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
License Key API	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
Machine learning API	ARTPEC-9, ARTPEC-8, ARTPEC-7, CV25
Message broker API	ARTPEC-9, ARTPEC-8, ARTPEC-7, CV25
Parameter API	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
Serial port API	ARTPEC-9, ARTPEC-8, ARTPEC-7
Video capture API	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25

Open source API	Chip
Cairo	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6
cURL	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
FastCGI	ARTPEC-9, ARTPEC-8, ARTPEC-7, CV25, i.MX 6SoloX
Jansson	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
OpenCL	ARTPEC-9, ARTPEC-8, ARTPEC-7
OpenSSL	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX
Pipewire	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX

Special API	Chip
VAPIX APIs	ARTPEC-9, ARTPEC-8, ARTPEC-7, ARTPEC-6, CV25, i.MX 6SoloX