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libexpr: Add release note for c-api-byidx change

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Sergei Zimmerman 2025-09-16 00:26:55 +03:00
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doc/manual/rl-next/c-api-byidx.md Normal file
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---
synopsis: "C API: `nix_get_attr_name_byidx`, `nix_get_attr_byidx` take a `nix_value *` instead of `const nix_value *`"
prs: [13987]
---
In order to accommodate a more optimized internal representation of attribute set merges these functions require
a mutable `nix_value *` that might be modified on access. This does *not* break the ABI of these functions.