Which version(s) of libfmt is spdlog compatible with?

[lalten]

Which version(s) of libfmt is spdlog compatible with?

It looks like the bundled libfmt was upgraded to v10 in 62e55e7 only to be reverted again in 4338b9c.

The Bazel Central Registry currently defines a dependency on libfmt 10 in https://github.com/bazelbuild/bazel-central-registry/blob/90ea6ab1277d1f338db9204d56276409b812ac99/modules/spdlog/1.12.0/MODULE.bazel#L7. So I'm wondering if this setup is officially supported.

Cc @mvukov (mvukov/rules_ros2#238 (comment)) @Vertexwahn (bazelbuild/bazel-central-registry#1206)

[tt4g]

Downgraded to 9 after upgrading to 10 due to compatibility issues: #2767
However, this commit 0ca574a should be compatible with the fmt 10.

[lalten]

Ah, I'm seeing that in the release notes for https://github.com/gabime/spdlog/releases/tag/v1.12.0 as well now.
So spdlog 1.11 only supports fmt 9.
Is my understanding correct that 1.12 and 1.13 both support (external) fmt 10?

[tt4g]

Right.