There is a new pull request by skmpz against master on the void-packages repository

https://github.com/skmpz/void-packages spdlog-1.10.0
https://github.com/void-linux/void-packages/pull/36533

spdlog: update to 1.10.0.
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#### Testing the changes
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A patch file from https://github.com/void-linux/void-packages/pull/36533.patch is attached