zfs_2_2: remove

Will likely go out of support during 25.11 as zfs-2.4.0-rc3 is already out

nixos/tests/zfs.nix

@@ -204,11 +204,6 @@ let
 in
 {
 
-  series_2_2 = makeZfsTest {
-    zfsPackage = pkgs.zfs_2_2;
-    kernelPackages = pkgs.linuxPackages;
-  };
-
   series_2_3 = makeZfsTest {
     zfsPackage = pkgs.zfs_2_3;
     kernelPackages = pkgs.linuxPackages;

pkgs/os-specific/linux/zfs/2_2.nix

@@ -1,33 +0,0 @@
-{
-  callPackage,
-  lib,
-  nixosTests,
-  stdenv,
-  ...
-}@args:
-
-callPackage ./generic.nix args {
-  # You have to ensure that in `pkgs/top-level/linux-kernels.nix`
-  # this attribute is the correct one for this package.
-  kernelModuleAttribute = "zfs_2_2";
-
-  kernelMinSupportedMajorMinor = "4.18";
-  kernelMaxSupportedMajorMinor = "6.15";
-
-  # this package should point to the latest release.
-  version = "2.2.8";
-
-  tests = {
-    inherit (nixosTests.zfs) series_2_2;
-  }
-  // lib.optionalAttrs stdenv.isx86_64 {
-    inherit (nixosTests.zfs) installer;
-  };
-
-  maintainers = with lib.maintainers; [
-    adamcstephens
-    amarshall
-  ];
-
-  hash = "sha256-ZYgC8L4iI9ewaC7rkMFSRAKeTWr72N5aRP98VLL4oqo=";
-}

pkgs/top-level/aliases.nix

@@ -1651,6 +1651,7 @@ mapAliases {
   zeroadPackages.zeroad-data = throw "'zeroadPackages.zeroad-data' has been renamed to/replaced by 'zeroad-data'"; # Converted to throw 2025-10-27
   zeroadPackages.zeroad-unwrapped = throw "'zeroadPackages.zeroad-unwrapped' has been renamed to/replaced by 'zeroad-unwrapped'"; # Converted to throw 2025-10-27
   zeromq4 = throw "'zeromq4' has been renamed to/replaced by 'zeromq'"; # Converted to throw 2025-10-27
+  zfs_2_2 = throw "'zfs_2_2' has been removed, upgrade to a newer version instead"; # Added 2025-11-08
   zfsStable = throw "'zfsStable' has been renamed to/replaced by 'zfs'"; # Converted to throw 2025-10-27
   zfsUnstable = throw "'zfsUnstable' has been renamed to/replaced by 'zfs_unstable'"; # Converted to throw 2025-10-27
   zig_0_12 = throw "zig 0.12 has been removed, upgrade to a newer version instead"; # Added 2025-08-18

pkgs/top-level/all-packages.nix

@@ -10342,9 +10342,6 @@ with pkgs;
 
   inherit
     ({
-      zfs_2_2 = callPackage ../os-specific/linux/zfs/2_2.nix {
-        configFile = "user";
-      };
       zfs_2_3 = callPackage ../os-specific/linux/zfs/2_3.nix {
         configFile = "user";
       };
@@ -10352,7 +10349,6 @@ with pkgs;
         configFile = "user";
       };
     })
-    zfs_2_2
     zfs_2_3
     zfs_unstable
     ;

pkgs/top-level/linux-kernels.nix

@@ -656,10 +656,6 @@ in
 
         zenpower = callPackage ../os-specific/linux/zenpower { };
 
-        zfs_2_2 = callPackage ../os-specific/linux/zfs/2_2.nix {
-          configFile = "kernel";
-          inherit pkgs kernel;
-        };
         zfs_2_3 = callPackage ../os-specific/linux/zfs/2_3.nix {
           configFile = "kernel";
           inherit pkgs kernel;