Global pinnings & configuration
For consistent builds and inter-artifact compatibility, many of the libraries and projects used to build packages on conda-forge are pinned or locked to a globally controlled value. We call this "pinnings". This includes compilers, runtime libraries, base systems, and others.
This information is collected here for your convenience, but it might not be up-to-date with the authoritative source: conda-forge-pinnings.
Check this file for up-to-date values.
Base systems
Linux
On Linux, we use a combination of CentOS-based Docker images with a matching sysroot package to target an old enough glibc version:
| Platform | glibc | Base image | Sysroot |
|---|---|---|---|
linux-64 | 2.12 | CentOS 7 | 2.12 |
linux-aarch64 | 2.17 | CentOS 7 | 2.17 |
linux-ppc64le | 2.17 | CentOS 7 | 2.17 |
macOS
On macOS, we pin to an old enough MACOS_DEPLOYMENT_TARGET value:
| Platform | MACOSX_DEPLOYMENT_TARGET | macos_machine |
|---|---|---|
osx-64 | 10.9 | x86_64-apple-darwin13.4.0 |
osx-arm64 | 11.0 | arm64-apple-darwin20.0.0 |
Windows
On Windows, we rely on the version of ucrt, vc and other redistributable libraries:
| Platform | ucrt | vc |
|---|---|---|
win-64 | 10.9 |
C & C++
| Platform | Compiler |
|---|---|
linux-64 | GCC 11 |
linux-aarch64 | GCC 11 |
linux-ppc64le | GCC 11 |
osx-64 | clang 14 |
osx-arm64‡ | clang 14 |
win-64 | Visual Studio 2019 |
‡ Cross-compiled only
CUDA
| Platform | nvcc | C, C++, Fortran | cudnn | glibc |
|---|---|---|---|---|
linux-64 | 10.2 | GCC 7 | 7 | 2.12 |
linux-64 | 11.0 | GCC 9 | 8 | 2.17 |
linux-64 | 11.1 | GCC 10 | 8 | 2.17 |
linux-64 | 11.2+ | GCC 10 | 8 | 2.17 |
linux-aarch64‡ | 11.2 | GCC 10 | 8 | 2.17 |
win-64 | 10.2 | Visual Studio 2019 | 7 | -- |
win-64 | 11.0 | Visual Studio 2019 | 8 | -- |
win-64 | 11.1 | Visual Studio 2019 | 8 | -- |
win-64 | 11.2+ | Visual Studio 2019 | 8 | -- |
‡ Cross-compiled only
Fortran
| Platform | Compiler |
|---|---|
linux-* | GFortran 11 |
osx-64 | GFortran 11 |
win-64 | Flang 5 |
Go
go-nocgo | go-cgo |
|---|---|
| Latest available | Latest available |
Node.js
| Platform | nodejs |
|---|---|
linux-* | 14, 16, 18 |
osx-64 | 14, 16, 18 |
osx-arm64‡ | 16, 18 |
win-64 | 14, 16, 18 |
‡ Cross-compiled only
Perl
perl |
|---|
| 5.32.1 |
Python
| Python implementation | Python version | NumPy version |
|---|---|---|
| CPython | 3.8 | 1.20 |
| CPython | 3.9 | 1.20 |
| CPython | 3.10 | 1.21 |
| CPython | 3.11※ | 1.23 |
| PyPy | 3.8※ | 1.20 |
| PyPy | 3.9※ | 1.20 |
※ Only via migration
R
| Platform | r_base |
|---|---|
linux-* | 4.1, 4.2 |
osx-* | 4.1, 4.2 |
win-64 | 4.1 |
Rust
rust |
|---|
| Latest available |
Check conda-forge-pinnings for more details.