# QNN API Revision History | API Version | SDK Version | Description | | --- | --- | --- | | 2.38.0 | 2.49.0 | QAIRT:
- Add Properties API and implementation.
- Add LoRA APIs.
- Add support for deferred graph init to Context configuration.
- Add support for init-cache in SystemBuilder.
- Add API to free GraphInfoSet.


QNN:
- Added SystemDLC support for new meta-data history record.
- Added SystemDLC support for composable graphs.
- Added QAIRT-like interface to SystemDLC for context-bin reflection.
- Added GraphTransformer. | | 2.37.0 | 2.48.0 | | | 2.36.0 | 2.47.0 | | | 2.35.0 | 2.46.0 | | | 2.34.0 | 2.45.0 | | | 2.33.0 | 2.44.0 | | | 2.32.0 | 2.42.0 | | | 2.31.0 | 2.41.0 | | | 2.30.0 | 2.40.0 | | | 2.29.0 | 2.39.0 | | | 2.28.1 | 2.38.0 | | | 2.28.0 | 2.37.0 | | | 2.27.0 | 2.36.0 | | | 2.26.0 | 2.35.0 | | | 2.25.0 | 2.33.0 | | | 2.24.0 | 2.31.0 | | | 2.23.0 | 2.30.0 | | | 2.22.0 | 2.29.0 | | | 2.21.0 | 2.28.0 | | | 2.20.0 | 2.27.0 | | | 2.19.0 | 2.26.0 | | | 2.18.0 | 2.25.0 | | | 2.17.0 | 2.24.0 | | | 2.16.0 | 2.23.0 | | | 2.15.0 | 2.21.0 | | | 2.14.0 | 2.20.0 | | | 2.13.0 | 2.19.0 | | | 2.12.0 | 2.18.0 | | | 2.11.0 | 2.17.0 | | | 2.10.0 | 2.16.0 | | | 2.9.0 | 2.15.0 | | | 2.8.0 | 2.14.0 | | | 2.7.2 | 2.13.0 | | | 2.7.1 | 2.12.0 | | | 2.7.0 | 2.11.0 | | | 2.6.0 | 2.10.40 | | | 2.5.1 | 2.10.0 | | | 2.5.0 | 2.9.0 | | | 2.4.0 | 2.8.0 | | | 2.3.2 | 2.7.0 | | | 2.3.1 | 2.5.0 | | | 2.3.0 | 2.4.0 | | | 2.2.0 | 2.3.0 | | | 2.1.0 | 2.1.0 | | | 2.0.0 | 2.0.0 | | # Backend Specific Revision History - [CPU Version History](https://docs.qualcomm.com/doc/80-63442-10/topic/cpu_api_version_history.html) - [DSP Version History](https://docs.qualcomm.com/doc/80-63442-10/topic/dsp_api_version_history.html) - [GPU Version History](https://docs.qualcomm.com/doc/80-63442-10/topic/gpu_api_version_history.html) - [HTA Version History](https://docs.qualcomm.com/doc/80-63442-10/topic/hta_api_version_history.html) - [HTP Version History](https://docs.qualcomm.com/doc/80-63442-10/topic/htp_api_version_history.html) - [LPAI Version History](https://docs.qualcomm.com/doc/80-63442-10/topic/lpai_api_version_history.html) # QNN System API Revision History | API Version | SDK Version | Description | | --- | --- | --- | | 1.8.0 | 2.44.0 | | | 1.7.0 | 2.42.0 | | | 1.6.0 | 2.40.0 | | | 1.5.0 | 2.38.0 | | | 1.4.0 | 2.33.0 | | | 1.3.0 | 2.31.0 | | | 1.2.0 | 2.28.0 | | | 1.1.0 | 2.13.0 | | | 1.0.0 | 2.0.0 | | Last Published: Aug 06, 2026 [Previous Topic Usage Guidelines](https://docs.qualcomm.com/bundle/publicresource/80-63442-10/topics/api_usage_guidelines.md) [Next Topic CPU Version History](https://docs.qualcomm.com/bundle/publicresource/80-63442-10/topics/cpu_api_version_history.md)