From a8559b4e5742c3d70ee42e540db8a92a41f8852d Mon Sep 17 00:00:00 2001
From: Acid Bong <acidbong@tilde.club>
Date: Wed, 29 Apr 2026 21:37:51 +0300
Subject: [PATCH] fmt: fix changelog file extension

in v10, the upstream switched from .rst to .md
---
 pkgs/development/libraries/fmt/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/libraries/fmt/default.nix b/pkgs/development/libraries/fmt/default.nix
index 3b9a89e670f4..538d53284787 100644
--- a/pkgs/development/libraries/fmt/default.nix
+++ b/pkgs/development/libraries/fmt/default.nix
@@ -60,7 +60,11 @@ let
           used as a fast and safe alternative to printf and IOStreams.
         '';
         homepage = "https://fmt.dev/";
-        changelog = "https://github.com/fmtlib/fmt/blob/${version}/ChangeLog.rst";
+        changelog =
+          let
+            ext = if lib.versionOlder version "10" then "rst" else "md";
+          in
+          "https://github.com/fmtlib/fmt/blob/${version}/ChangeLog.${ext}";
         downloadPage = "https://github.com/fmtlib/fmt/";
         maintainers = [ ];
         license = lib.licenses.mit;