icon-lang 2020-02-05 -> 2024.01 https://repology.org/project/icon/versions
attrpath: icon-lang
Checking auto update branch...
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[version] 
[version] updated version and sha256
[rustCrateVersion] 
[rustCrateVersion] No cargoSha256 or cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorSha256 or vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] skipping because derivation has no updateScript
Diff after rewrites:
diff --git a/pkgs/development/interpreters/icon-lang/default.nix b/pkgs/development/interpreters/icon-lang/default.nix
index 5481f7825c98..2dce0ae138eb 100644
--- a/pkgs/development/interpreters/icon-lang/default.nix
+++ b/pkgs/development/interpreters/icon-lang/default.nix
@@ -7,12 +7,12 @@
 
 stdenv.mkDerivation rec {
   pname = "icon-lang";
-  version = "unstable-2020-02-05";
+  version = "unstable-2024.01";
   src = fetchFromGitHub {
     owner = "gtownsend";
     repo = "icon";
     rev = "829cff33de4a21546fb269de3ef5acd7b4f0c0c7";
-    sha256 = "1lj2f13pbaajcy4v3744bz46rghhw5sv4dwwfnzhsllbj5gnjsv2";
+    sha256 = "sha256-YmtpX5GLUg2/dZw3snXhEL5syF+EnLGJZ1KpdUdwQtI=";
   };
 
   buildInputs = lib.optionals withGraphics [ libX11 libXt ];

Source url did not change.