> These are the only backend versions tested and supported with each Dynamo release. Using other backend versions is not recommended and compatibility is not guaranteed.
**main (ToT)** reflects the current development branch. Patch versions (e.g., v0.8.1.post1) inherit backend versions from their base release unless otherwise noted.
-**main (ToT)** reflects the current development branch.
- Releases marked *(in progress)* or *(planned)* show target versions that may change before final release.
> [!Important]
### Version Compatibility
> Currently TensorRT-LLM does not support Python 3.11 so installation of the ai-dynamo[trtllm] Python wheel will fail.
- Backend versions listed are the only versions tested and supported for each release.
- TensorRT-LLM does not support Python 3.11; installation of the `ai-dynamo[trtllm]` wheel will fail on Python 3.11.