diff --git a/pkgs/development/libraries/isl/0.24.0.nix b/pkgs/development/libraries/isl/0.24.0.nix
deleted file mode 100644
index 90eb5ec0fac2..000000000000
--- a/pkgs/development/libraries/isl/0.24.0.nix
+++ /dev/null
@@ -1,11 +0,0 @@
-import ./generic.nix rec {
-  version = "0.24";
-  urls = [
-    "mirror://sourceforge/libisl/isl-${version}.tar.xz"
-    "https://libisl.sourceforge.io/isl-${version}.tar.xz"
-  ];
-  sha256 = "1bgbk6n93qqn7w8v21kxf4x6dc3z0ypqrzvgfd46nhagak60ac84";
-  configureFlags = [
-    "--with-gcc-arch=generic" # don't guess -march=/mtune=
-  ];
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 68b424218dab..8f1b1374d93c 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1245,6 +1245,7 @@ mapAliases {
   isl_0_11 = throw "isl_0_11 has been removed from Nixpkgs, as it is unmaintained and obsolete"; # Added 2024-09-13
   isl_0_14 = throw "isl_0_14 has been removed from Nixpkgs, as it is unmaintained and obsolete"; # Added 2024-09-13
   isl_0_17 = throw "isl_0_17 has been removed from Nixpkgs, as it is unmaintained and obsolete"; # Added 2024-11-20
+  isl_0_24 = throw "isl_0_24 has been removed from Nixpkgs, as it is unmaintained and obsolete"; # Added 2025-10-18
   istatmenus = throw "istatmenus has beend renamed to istat-menus"; # Added 2025-05-05
   iso-flags-png-320x420 = lib.warnOnInstantiate "iso-flags-png-320x420 has been renamed to iso-flags-png-320x240" iso-flags-png-320x240; # Added 2024-07-17
   itktcl = tclPackages.itktcl; # Added 2024-10-02
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d3847ee7ae46..561b04ac8e7b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3115,13 +3115,11 @@ with pkgs;
       isl = isl_0_20;
       isl_0_20 = callPackage ../development/libraries/isl/0.20.0.nix { };
       isl_0_23 = callPackage ../development/libraries/isl/0.23.0.nix { };
-      isl_0_24 = callPackage ../development/libraries/isl/0.24.0.nix { };
       isl_0_27 = callPackage ../development/libraries/isl/0.27.0.nix { };
     })
     isl
     isl_0_20
     isl_0_23
-    isl_0_24
     isl_0_27
     ;