diff --git a/doc/manual/rl-next/faster-blake3.md b/doc/manual/rl-next/faster-blake3.md
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+---
+synopsis: "Faster blake3 hashing"
+issues:
+prs: [12676]
+---
+
+The implementation fro blake3 hashing is now multi-threaded and used memory-mapped IO.
+Benchmark results can be found the [pull request](https://github.com/NixOS/nix/pull/12676).