diff --git a/nixos/tests/zfs.nix b/nixos/tests/zfs.nix
index 851fced2c5e1ec6..26a045f3e69818f 100644
--- a/nixos/tests/zfs.nix
+++ b/nixos/tests/zfs.nix
@@ -213,8 +213,8 @@ in {
     enableSystemdStage1 = true;
   };
 
-  installerBoot = (import ./installer.nix { }).separateBootZfs;
-  installer = (import ./installer.nix { }).zfsroot;
+  installerBoot = (import ./installer.nix { inherit system; }).separateBootZfs;
+  installer = (import ./installer.nix { inherit system; }).zfsroot;
 
   expand-partitions = makeTest {
     name = "multi-disk-zfs";
diff --git a/pkgs/os-specific/linux/zfs/2_1.nix b/pkgs/os-specific/linux/zfs/2_1.nix
index 97173a5154a592a..d950f5cac15d23f 100644
--- a/pkgs/os-specific/linux/zfs/2_1.nix
+++ b/pkgs/os-specific/linux/zfs/2_1.nix
@@ -1,7 +1,6 @@
 { callPackage
 , kernel ? null
 , stdenv
-, linuxKernel
 , lib
 , nixosTests
 , ...
@@ -15,9 +14,7 @@ callPackage ./generic.nix args {
   # this attribute is the correct one for this package.
   kernelModuleAttribute = "zfs_2_1";
   # check the release notes for compatible kernels
-  kernelCompatible = kernel.kernelOlder "6.8";
-
-  latestCompatibleLinuxPackages = linuxKernel.packages.linux_6_6;
+  kernelCompatible = kernel: kernel.kernelOlder "6.8";
 
   # This is a fixed version to the 2.1.x series, move only
   # if the 2.1.x series moves.
diff --git a/pkgs/os-specific/linux/zfs/2_2.nix b/pkgs/os-specific/linux/zfs/2_2.nix
index 9e3fde0780f0bf7..befb83b2056909f 100644
--- a/pkgs/os-specific/linux/zfs/2_2.nix
+++ b/pkgs/os-specific/linux/zfs/2_2.nix
@@ -2,7 +2,6 @@
 , kernel ? null
 , stdenv
 , lib
-, linuxKernel
 , nixosTests
 , ...
 } @ args:
@@ -15,12 +14,10 @@ callPackage ./generic.nix args {
   # this attribute is the correct one for this package.
   kernelModuleAttribute = "zfs_2_2";
   # check the release notes for compatible kernels
-  kernelCompatible = kernel.kernelOlder "6.10";
-
-  latestCompatibleLinuxPackages = linuxKernel.packages.linux_6_6;
+  kernelCompatible = kernel: kernel.kernelOlder "6.11";
 
   # this package should point to the latest release.
-  version = "2.2.5";
+  version = "2.2.6";
 
   tests = [
     nixosTests.zfs.installer
@@ -29,5 +26,5 @@ callPackage ./generic.nix args {
 
   maintainers = with lib.maintainers; [ adamcstephens amarshall ];
 
-  hash = "sha256-BkwcNPk+jX8CXp5xEVrg4THof7o/5j8RY2SY6+IPNTg=";
+  hash = "sha256-wkgoYg6uQOHVq8a9sJXzO/QXJ6q28l7JXWkC+BFvOb0=";
 }
diff --git a/pkgs/os-specific/linux/zfs/generic.nix b/pkgs/os-specific/linux/zfs/generic.nix
index a7264a3ded59d70..0973cd2a95c4b5e 100644
--- a/pkgs/os-specific/linux/zfs/generic.nix
+++ b/pkgs/os-specific/linux/zfs/generic.nix
@@ -2,6 +2,7 @@ let
   genericBuild =
   { pkgs, lib, stdenv, fetchFromGitHub, fetchpatch
   , autoreconfHook269, util-linux, nukeReferences, coreutils
+  , linuxKernel
   , perl
   , configFile ? "all"
 
@@ -27,8 +28,6 @@ let
   , kernelModuleAttribute
   , extraPatches ? []
   , rev ? "zfs-${version}"
-  , isUnstable ? false
-  , latestCompatibleLinuxPackages
   , kernelCompatible ? null
   , maintainers ? (with lib.maintainers; [ amarshall ])
   , tests
@@ -183,9 +182,11 @@ let
       # Remove tests because they add a runtime dependency on gcc
       rm -rf $out/share/zfs/zfs-tests
 
-      # Add Bash completions.
-      install -v -m444 -D -t $out/share/bash-completion/completions contrib/bash_completion.d/zfs
-      (cd $out/share/bash-completion/completions; ln -s zfs zpool)
+      ${optionalString (lib.versionOlder version "2.2") ''
+        # Add Bash completions.
+        install -v -m444 -D -t $out/share/bash-completion/completions contrib/bash_completion.d/zfs
+        (cd $out/share/bash-completion/completions; ln -s zfs zpool)
+      ''}
     '';
 
     postFixup = let
@@ -199,7 +200,13 @@ let
     outputs = [ "out" ] ++ optionals buildUser [ "dev" ];
 
     passthru = {
-      inherit enableMail latestCompatibleLinuxPackages kernelModuleAttribute;
+      inherit enableMail kernelModuleAttribute;
+      latestCompatibleLinuxPackages = lib.pipe linuxKernel.packages [
+        builtins.attrValues
+        (builtins.filter (kPkgs: (builtins.tryEval kPkgs).success && kPkgs ? kernel && kPkgs.kernel.pname == "linux" && kernelCompatible kPkgs.kernel))
+        (builtins.sort (a: b: (lib.versionOlder a.kernel.version b.kernel.version)))
+        lib.last
+      ];
       # The corresponding userspace tools to this instantiation
       # of the ZFS package set.
       userspaceTools = genericBuild (outerArgs // {
@@ -236,7 +243,7 @@ let
       mainProgram = "zfs";
       # If your Linux kernel version is not yet supported by zfs, try zfs_unstable.
       # On NixOS set the option `boot.zfs.package = pkgs.zfs_unstable`.
-      broken = buildKernel && (kernelCompatible != null) && !kernelCompatible;
+      broken = buildKernel && (kernelCompatible != null) && !(kernelCompatible kernel);
     };
   };
 in
diff --git a/pkgs/os-specific/linux/zfs/unstable.nix b/pkgs/os-specific/linux/zfs/unstable.nix
index 59667d981319e41..e635c8950c0ef9c 100644
--- a/pkgs/os-specific/linux/zfs/unstable.nix
+++ b/pkgs/os-specific/linux/zfs/unstable.nix
@@ -1,7 +1,6 @@
 { callPackage
 , kernel ? null
 , stdenv
-, linuxKernel
 , nixosTests
 , ...
 } @ args:
@@ -14,21 +13,18 @@ callPackage ./generic.nix args {
   # this attribute is the correct one for this package.
   kernelModuleAttribute = "zfs_unstable";
   # check the release notes for compatible kernels
-  kernelCompatible = kernel.kernelOlder "6.11";
-
-  latestCompatibleLinuxPackages = linuxKernel.packages.linux_6_10;
+  kernelCompatible = kernel: kernel.kernelOlder "6.11";
 
   # this package should point to a version / git revision compatible with the latest kernel release
   # IMPORTANT: Always use a tagged release candidate or commits from the
   # zfs-<version>-staging branch, because this is tested by the OpenZFS
   # maintainers.
-  version = "2.2.5";
+  version = "2.2.6";
   # rev = "";
 
-  isUnstable = true;
   tests = [
     nixosTests.zfs.unstable
   ];
 
-  hash = "sha256-BkwcNPk+jX8CXp5xEVrg4THof7o/5j8RY2SY6+IPNTg=";
+  hash = "sha256-wkgoYg6uQOHVq8a9sJXzO/QXJ6q28l7JXWkC+BFvOb0=";
 }