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---
grand_parent: Standard API
parent: Utility Library
nav_order: 3
---
# `<cuda/std/version>`
## Extensions
The following version macros, which are explained in the [versioning section],
are defined in this header:
- `_LIBCUDACXX_CUDA_API_VERSION`
- `_LIBCUDACXX_CUDA_API_VERSION_MAJOR`
- `_LIBCUDACXX_CUDA_API_VERSION_MINOR`
- `_LIBCUDACXX_CUDA_API_VERSION_PATCH`
- `_LIBCUDACXX_CUDA_ABI_VERSION`
- `_LIBCUDACXX_CUDA_ABI_VERSION_LATEST`
## Restrictions
When using NVCC, the definition of C++ feature test macros is provided by the
host Standard Library, not libcu++.
[versioning section]: ./releases/versioning.md
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