diff --git a/doc/manual/rl-next/git-fetcher.md b/doc/manual/rl-next/git-fetcher.md
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+---
+synopsis: "Nix now uses `libgit2` for Git fetching"
+prs:
+  - 9240
+  - 9241
+  - 9258
+  - 9480
+issues:
+  - 5313
+---
+
+Nix has built-in support for fetching sources from Git, during evaluation and locking; outside the sandbox.
+The existing implementation based on the Git CLI had issues regarding reproducibility and performance.
+
+Most of the original `fetchGit` behavior has been implemented using the `libgit2` library, which gives the fetcher fine-grained control.
+
+Known issues:
+- The `export-subst` behavior has not been reimplemented. [Partial](https://github.com/NixOS/nix/pull/9391#issuecomment-1872503447) support for this Git feature is feasible, but it did not make the release window.