diff --git a/nixos/tests/kernel-generic.nix b/nixos/tests/kernel-generic.nix
index fd2917dfddc4..2a1ab38267a3 100644
--- a/nixos/tests/kernel-generic.nix
+++ b/nixos/tests/kernel-generic.nix
@@ -40,7 +40,6 @@ let
       linux_5_15_hardened
       linux_6_1_hardened
       linux_6_6_hardened
-      linux_6_11_hardened
       linux_6_12_hardened
       linux_6_13_hardened
       linux_rt_5_4
diff --git a/pkgs/os-specific/linux/kernel/common-config.nix b/pkgs/os-specific/linux/kernel/common-config.nix
index 2a57b6ae44c4..08d2291d686c 100644
--- a/pkgs/os-specific/linux/kernel/common-config.nix
+++ b/pkgs/os-specific/linux/kernel/common-config.nix
@@ -872,6 +872,7 @@ let
       CGROUP_HUGETLB = yes;
       CGROUP_PERF = yes;
       CGROUP_RDMA = yes;
+      CGROUP_DMEM = whenAtLeast "6.14" yes;
 
       MEMCG = yes;
       MEMCG_SWAP = whenOlder "6.1" yes;
@@ -1099,6 +1100,10 @@ let
 
         MD = yes; # Device mapper (RAID, LVM, etc.)
 
+        # enable support for device trees and overlays
+        OF = option yes;
+        OF_OVERLAY = option yes;
+
         # Enable initrd support.
         BLK_DEV_INITRD = yes;
 
diff --git a/pkgs/os-specific/linux/kernel/kernels-org.json b/pkgs/os-specific/linux/kernel/kernels-org.json
index 26cc76b25e66..d73a2578522a 100644
--- a/pkgs/os-specific/linux/kernel/kernels-org.json
+++ b/pkgs/os-specific/linux/kernel/kernels-org.json
@@ -20,19 +20,19 @@
         "hash": "sha256:0vpgb3lmhgv5iw9b1z0kqr6vdv44if49marfp5858z3a8yj69bdk"
     },
     "6.6": {
-        "version": "6.6.83",
-        "hash": "sha256:0262q81mwhy8plql8hnnfvagp460vfl127kaayya113l7gkbnjw9"
-    },
-    "6.11": {
-        "version": "6.11.11",
-        "hash": "sha256:1z2913y38clnlmhvwj49h7p4pic24s4d8np7nmd4lk7m2xz8w532"
+        "version": "6.6.84",
+        "hash": "sha256:19vvq558vs2ivj4l6kmyha30a94fh42wmijsghsdnq8salhhglkz"
     },
     "6.12": {
-        "version": "6.12.19",
-        "hash": "sha256:0cb5ri6xsd9fyf0s48xrrsbhqzbgjd0iddnid6qk8i60prbz0fyp"
+        "version": "6.12.20",
+        "hash": "sha256:1ivakcj0gi191687zagl1qfsip0567p1pk3yy1s2xf0agfq8j3i3"
     },
     "6.13": {
-        "version": "6.13.7",
-        "hash": "sha256:07c08x68fgcsgriss5z8w427h69y52s887vas91jzb5p70hbcf9s"
+        "version": "6.13.8",
+        "hash": "sha256:1fqsfnam0ca2lyqgi9vh7x6xa24yjk6ym6z85bn6nrrxsxczm6i5"
+    },
+    "6.14": {
+        "version": "6.14",
+        "hash": "sha256:0w3nqh02vl8f2wsx3fmsvw1pdsnjs5zfqcmv2w2vnqdiwy1vd552"
     }
 }
diff --git a/pkgs/os-specific/linux/kernel/linux-libre.nix b/pkgs/os-specific/linux/kernel/linux-libre.nix
index ec9f2f7a965a..11d96ec6a0fe 100644
--- a/pkgs/os-specific/linux/kernel/linux-libre.nix
+++ b/pkgs/os-specific/linux/kernel/linux-libre.nix
@@ -5,8 +5,8 @@
   linux,
   scripts ? fetchsvn {
     url = "https://www.fsfla.org/svn/fsfla/software/linux-libre/releases/branches/";
-    rev = "19729";
-    sha256 = "0w7bhb0ybvvx28gqrhk81wzhqxkrfbhzwr3hv1mpr3cjgldfppr9";
+    rev = "19746";
+    sha256 = "07kzanf61ja2jw6rac8jd0w2bs4i41wqclr59m2h6c8j0dc7w4as";
   },
   ...
 }@args:
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
index db1cef1ae7c7..b5e18343a3e7 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.10.nix
@@ -10,7 +10,7 @@
 }@args:
 
 let
-  version = "5.10.233-rt125"; # updated by ./update-rt.sh
+  version = "5.10.234-rt127"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in
@@ -25,7 +25,7 @@ buildLinux (
 
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-      sha256 = "0lkz2g8r032f027j3gih3f7crx991mrpng9qgqc5k4cc1wl5g7i3";
+      sha256 = "1rgb4v6dvqlw1mgzsli0hxaj2d5d4m1nylgcrwm4bkpiwbzc95wm";
     };
 
     kernelPatches =
@@ -34,7 +34,7 @@ buildLinux (
           name = "rt";
           patch = fetchurl {
             url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-            sha256 = "1cx91p88h169v69lxz7vbjjnxdzdz9v28liypz099xghibwhcwfh";
+            sha256 = "1pmfba5sjmhai2hbzgbwhak46jhc45rcxf7zdgx5hbhbpgbl9d49";
           };
         };
       in
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix
index 6ba6fa1b4967..570c7db2a285 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.4.nix
@@ -10,7 +10,7 @@
 }@args:
 
 let
-  version = "5.4.288-rt94"; # updated by ./update-rt.sh
+  version = "5.4.290-rt96"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in
@@ -22,7 +22,7 @@ buildLinux (
 
     src = fetchurl {
       url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-      sha256 = "1zhsb6gwhb6cvijzh7s8rnm4b06klyhb2mxb06gcyfvj0givlvw7";
+      sha256 = "0mm4q8f6kbqddy4zaxjf5xyqpnla5qprvsf7v3vq01gmlzr3rivc";
     };
 
     kernelPatches =
@@ -31,7 +31,7 @@ buildLinux (
           name = "rt";
           patch = fetchurl {
             url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-            sha256 = "0gn290fyc37jq6ii78nzd0yfzf111mssghwhgj9mjfja89zy197m";
+            sha256 = "1vcyz46n6yznbil5lqiqrn9vrdf0cpva7br9fj7lrr958yjv7101";
           };
         };
       in
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 57a73f5c1860..e4062f94646f 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -853,6 +853,7 @@ mapAliases {
   linuxPackages_6_11 = linuxKernel.packages.linux_6_11;
   linuxPackages_6_12 = linuxKernel.packages.linux_6_12;
   linuxPackages_6_13 = linuxKernel.packages.linux_6_13;
+  linuxPackages_6_14 = linuxKernel.packages.linux_6_14;
   linuxPackages_rpi0 = linuxKernel.packages.linux_rpi1;
   linuxPackages_rpi02w = linuxKernel.packages.linux_rpi3;
   linuxPackages_rpi1 = linuxKernel.packages.linux_rpi1;
@@ -879,6 +880,7 @@ mapAliases {
   linux_6_11 = linuxKernel.kernels.linux_6_11;
   linux_6_12 = linuxKernel.kernels.linux_6_12;
   linux_6_13 = linuxKernel.kernels.linux_6_13;
+  linux_6_14 = linuxKernel.kernels.linux_6_14;
   linux_rpi0 = linuxKernel.kernels.linux_rpi1;
   linux_rpi02w = linuxKernel.kernels.linux_rpi3;
   linux_rpi1 = linuxKernel.kernels.linux_rpi1;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 513f9706ceda..baa65be81ca7 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11983,8 +11983,6 @@ with pkgs;
   linux_6_1_hardened = linuxKernel.kernels.linux_6_1_hardened;
   linuxPackages_6_6_hardened = linuxKernel.packages.linux_6_6_hardened;
   linux_6_6_hardened = linuxKernel.kernels.linux_6_6_hardened;
-  linuxPackages_6_11_hardened = linuxKernel.packages.linux_6_11_hardened;
-  linux_6_11_hardened = linuxKernel.kernels.linux_6_11_hardened;
   linuxPackages_6_12_hardened = linuxKernel.packages.linux_6_12_hardened;
   linux_6_12_hardened = linuxKernel.kernels.linux_6_12_hardened;
   linuxPackages_6_13_hardened = linuxKernel.packages.linux_6_13_hardened;
diff --git a/pkgs/top-level/linux-kernels.nix b/pkgs/top-level/linux-kernels.nix
index d4258c689576..551ee973895e 100644
--- a/pkgs/top-level/linux-kernels.nix
+++ b/pkgs/top-level/linux-kernels.nix
@@ -197,14 +197,6 @@ in {
       ];
     };
 
-    linux_6_11 = callPackage ../os-specific/linux/kernel/mainline.nix {
-      branch = "6.11";
-      kernelPatches = [
-        kernelPatches.bridge_stp_helper
-        kernelPatches.request_key_helper
-      ];
-    };
-
     linux_6_12 = callPackage ../os-specific/linux/kernel/mainline.nix {
       branch = "6.12";
       kernelPatches = [
@@ -221,6 +213,14 @@ in {
       ];
     };
 
+    linux_6_14 = callPackage ../os-specific/linux/kernel/mainline.nix {
+      branch = "6.14";
+      kernelPatches = [
+        kernelPatches.bridge_stp_helper
+        kernelPatches.request_key_helper
+      ];
+    };
+
     linux_testing = let
       testing = callPackage ../os-specific/linux/kernel/mainline.nix {
         # A special branch that tracks the kernel under the release process
@@ -299,7 +299,6 @@ in {
     linux_5_15_hardened = hardenedKernelFor kernels.linux_5_15 { };
     linux_6_1_hardened = hardenedKernelFor kernels.linux_6_1 { };
     linux_6_6_hardened = hardenedKernelFor kernels.linux_6_6 { };
-    linux_6_11_hardened = hardenedKernelFor kernels.linux_6_11 { };
     linux_6_12_hardened = hardenedKernelFor kernels.linux_6_12 { };
     linux_6_13_hardened = hardenedKernelFor kernels.linux_6_13 { };
 
@@ -312,6 +311,7 @@ in {
     linux_6_8 = throw "linux 6.8 was removed because it has reached its end of life upstream";
     linux_6_9 = throw "linux 6.9 was removed because it has reached its end of life upstream";
     linux_6_10 = throw "linux 6.10 was removed because it has reached its end of life upstream";
+    linux_6_11 = throw "linux 6.11 was removed because it has reached its end of life upstream";
 
     linux_xanmod_tt = throw "linux_xanmod_tt was removed because upstream no longer offers this option";
 
@@ -323,6 +323,7 @@ in {
     linux_6_8_hardened = throw "linux 6.8 was removed because it has reached its end of life upstream";
     linux_6_9_hardened = throw "linux 6.9 was removed because it has reached its end of life upstream";
     linux_6_10_hardened = throw "linux 6.10 was removed because it has reached its end of life upstream";
+    linux_6_11_hardened = throw "linux 6.11 was removed because it has reached its end of life upstream";
   }));
   /*  Linux kernel modules are inherently tied to a specific kernel.  So
     rather than provide specific instances of those packages for a
@@ -677,9 +678,9 @@ in {
     linux_5_15 = recurseIntoAttrs (packagesFor kernels.linux_5_15);
     linux_6_1 = recurseIntoAttrs (packagesFor kernels.linux_6_1);
     linux_6_6 = recurseIntoAttrs (packagesFor kernels.linux_6_6);
-    linux_6_11 = recurseIntoAttrs (packagesFor kernels.linux_6_11);
     linux_6_12 = recurseIntoAttrs (packagesFor kernels.linux_6_12);
     linux_6_13 = recurseIntoAttrs (packagesFor kernels.linux_6_13);
+    linux_6_14 = recurseIntoAttrs (packagesFor kernels.linux_6_14);
   } // lib.optionalAttrs config.allowAliases {
     linux_4_14 = throw "linux 4.14 was removed because it will reach its end of life within 23.11"; # Added 2023-10-11
     linux_4_19 = throw "linux 4.19 was removed because it will reach its end of life within 24.11"; # Added 2024-09-21
@@ -689,6 +690,7 @@ in {
     linux_6_8 = throw "linux 6.8 was removed because it reached its end of life upstream"; # Added 2024-08-02
     linux_6_9 = throw "linux 6.9 was removed because it reached its end of life upstream"; # Added 2024-08-02
     linux_6_10 = throw "linux 6.10 was removed because it reached its end of life upstream"; # Added 2024-10-23
+    linux_6_11 = throw "linux 6.11 was removed because it reached its end of life upstream"; # Added 2025-03-23
   };
 
   rtPackages = {
@@ -719,7 +721,6 @@ in {
     linux_5_15_hardened = recurseIntoAttrs (packagesFor kernels.linux_5_15_hardened);
     linux_6_1_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_1_hardened);
     linux_6_6_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_6_hardened);
-    linux_6_11_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_11_hardened);
     linux_6_12_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_12_hardened);
     linux_6_13_hardened = recurseIntoAttrs (packagesFor kernels.linux_6_13_hardened);
 
@@ -743,13 +744,14 @@ in {
     linux_6_7_hardened = throw "linux 6.7 was removed because it has reached its end of life upstream";
     linux_6_8_hardened = throw "linux 6.8 was removed because it has reached its end of life upstream";
     linux_6_9_hardened = throw "linux 6.9 was removed because it has reached its end of life upstream";
+    linux_6_11_hardened = throw "linux 6.11 was removed because it has reached its end of life upstream";
     linux_xanmod_tt = throw "linux_xanmod_tt was removed because upstream no longer offers this option";
   });
 
   packageAliases = {
     linux_default = packages.linux_6_12;
     # Update this when adding the newest kernel major version!
-    linux_latest = packages.linux_6_13;
+    linux_latest = packages.linux_6_14;
     linux_rt_default = packages.linux_rt_5_15;
     linux_rt_latest = packages.linux_rt_6_6;
   } // lib.optionalAttrs config.allowAliases {