diff --git a/pkgs/os-specific/bsd/freebsd/default.nix b/pkgs/os-specific/bsd/freebsd/default.nix
index 2d599a7c56e7..ac4809d7a2fe 100644
--- a/pkgs/os-specific/bsd/freebsd/default.nix
+++ b/pkgs/os-specific/bsd/freebsd/default.nix
@@ -3,7 +3,7 @@
   generateSplicesForMkScope,
   callPackage,
   attributePathToSplice ? [ "freebsd" ],
-  branch ? "release/14.0.0",
+  branch ? "release/14.1.0",
 }:
 
 let
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/bmake-no-compiler-rt.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/bmake-no-compiler-rt.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/bmake-no-compiler-rt.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/bmake-no-compiler-rt.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/compat-fix-typedefs-locations.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/compat-fix-typedefs-locations.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/compat-fix-typedefs-locations.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/compat-fix-typedefs-locations.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/compat-install-dirs.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/compat-install-dirs.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/compat-install-dirs.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/compat-install-dirs.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.1/fsck-path.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/fsck-path.patch
new file mode 100644
index 000000000000..d1e49d20103b
--- /dev/null
+++ b/pkgs/os-specific/bsd/freebsd/patches/14.1/fsck-path.patch
@@ -0,0 +1,18 @@
+diff --git a/sbin/fsck/fsck.c b/sbin/fsck/fsck.c
+index 3757ed062ba5..584ada116386 100644
+--- a/sbin/fsck/fsck.c
++++ b/sbin/fsck/fsck.c
+@@ -375,11 +375,8 @@ checkfs(const char *pvfstype, const char *spec, const char *mntpt,
+ 			_exit(0);
+ 
+ 		/* Go find an executable. */
+-		execvP(execbase, _PATH_SYSPATH, __DECONST(char * const *, argv));
+-		if (spec)
+-			warn("exec %s for %s in %s", execbase, spec, _PATH_SYSPATH);
+-		else
+-			warn("exec %s in %s", execbase, _PATH_SYSPATH);
++		execvp(execbase, __DECONST(char * const *, argv));
++		warn("exec %s not found", execbase);
+ 		_exit(1);
+ 		/* NOTREACHED */
+ 
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/install-bootstrap-Makefile.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/install-bootstrap-Makefile.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/install-bootstrap-Makefile.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/install-bootstrap-Makefile.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/libc-msun-arch-subdir.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/libc-msun-arch-subdir.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/libc-msun-arch-subdir.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/libc-msun-arch-subdir.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/libc-no-force--lcompiler-rt.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/libc-no-force--lcompiler-rt.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/libc-no-force--lcompiler-rt.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/libc-no-force--lcompiler-rt.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/libcxxrt-headers.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/libcxxrt-headers.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/libcxxrt-headers.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/libcxxrt-headers.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/libifconfig-no-internal.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/libifconfig-no-internal.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/libifconfig-no-internal.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/libifconfig-no-internal.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/libnetbsd-do-install.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/libnetbsd-do-install.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/libnetbsd-do-install.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/libnetbsd-do-install.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/librpcsvc-include-subdir.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/librpcsvc-include-subdir.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/librpcsvc-include-subdir.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/librpcsvc-include-subdir.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/localedef.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/localedef.patch
similarity index 98%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/localedef.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/localedef.patch
index 73a0341bd324..4800879ab0bd 100644
--- a/pkgs/os-specific/bsd/freebsd/patches/14.0/localedef.patch
+++ b/pkgs/os-specific/bsd/freebsd/patches/14.1/localedef.patch
@@ -17,12 +17,12 @@ index 2d3723b49f5b..6bbff732b9d7 100644
 +++ b/lib/libc/locale/collate.h
 @@ -36,6 +36,7 @@
  #ifndef _COLLATE_H_
- #define	_COLLATE_H_
+ #define        _COLLATE_H_
  
 +#include <stdint.h>
- #include <sys/cdefs.h>
  #include <sys/types.h>
  #include <limits.h>
+ #include "xlocale_private.h"
 diff --git a/usr.bin/localedef/charmap.c b/usr.bin/localedef/charmap.c
 index 44b7e3292eae..79c30b7cf372 100644
 --- a/usr.bin/localedef/charmap.c
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/mount-use-path.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/mount-use-path.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/mount-use-path.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/mount-use-path.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/mtree-Makefile.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/mtree-Makefile.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/mtree-Makefile.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/mtree-Makefile.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/no-perms-BSD.include.dist.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/no-perms-BSD.include.dist.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/no-perms-BSD.include.dist.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/no-perms-BSD.include.dist.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/rc-user.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/rc-user.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/rc-user.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/rc-user.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/rtld-no-force--lcompiler-rt.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/rtld-no-force--lcompiler-rt.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/rtld-no-force--lcompiler-rt.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/rtld-no-force--lcompiler-rt.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/sys-gnu-date.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/sys-gnu-date.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/sys-gnu-date.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/sys-gnu-date.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/sys-no-explicit-intrinsics-dep.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/sys-no-explicit-intrinsics-dep.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/sys-no-explicit-intrinsics-dep.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/sys-no-explicit-intrinsics-dep.patch
diff --git a/pkgs/os-specific/bsd/freebsd/patches/14.0/tinfo-host-cc.patch b/pkgs/os-specific/bsd/freebsd/patches/14.1/tinfo-host-cc.patch
similarity index 100%
rename from pkgs/os-specific/bsd/freebsd/patches/14.0/tinfo-host-cc.patch
rename to pkgs/os-specific/bsd/freebsd/patches/14.1/tinfo-host-cc.patch
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/compat/package.nix b/pkgs/os-specific/bsd/freebsd/pkgs/compat/package.nix
index f597d6e3705b..5865f93674e1 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/compat/package.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/compat/package.nix
@@ -41,9 +41,12 @@ mkDerivation {
 
       "sys/rpc/types.h"
     ]
-    ++ lib.optionals (versionData.major == 14) [ "sys/sys/bitcount.h" ]
+    ++ lib.optionals (versionData.major == 14) [
+      "sys/sys/bitcount.h"
+      "sys/sys/linker_set.h"
+      "sys/sys/module.h"
+    ]
     ++ [
-
       # Listed in Makekfile as INC
       "include/mpool.h"
       "include/ndbm.h"
@@ -64,7 +67,7 @@ mkDerivation {
     ]
     ++ [
 
-      # Listed in Makekfile as SYSINC
+      # Listed in Makefile as SYSINCS
 
       "sys/sys/capsicum.h"
       "sys/sys/caprights.h"
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/csu.nix b/pkgs/os-specific/bsd/freebsd/pkgs/csu.nix
index 020a08c1d01e..5d4bad19ad1d 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/csu.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/csu.nix
@@ -1,6 +1,7 @@
 {
   lib,
   mkDerivation,
+  versionData,
   bsdSetupHook,
   freebsdSetupHook,
   makeMinimal,
@@ -17,7 +18,7 @@ mkDerivation {
   extraPaths = [
     "lib/Makefile.inc"
     "lib/libc/include/libc_private.h"
-  ];
+  ] ++ lib.optionals (versionData.major == 14) [ "sys/sys/param.h" ];
   nativeBuildInputs = [
     bsdSetupHook
     freebsdSetupHook
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/fsck.nix b/pkgs/os-specific/bsd/freebsd/pkgs/fsck.nix
index ba55a5f651ed..e6febd1ee225 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/fsck.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/fsck.nix
@@ -1,5 +1,7 @@
-{ mkDerivation }:
+{ lib, mkDerivation }:
 mkDerivation {
   path = "sbin/fsck";
   extraPaths = [ "sbin/mount" ];
+
+  meta.platforms = lib.platforms.freebsd;
 }
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/fsck_ffs.nix b/pkgs/os-specific/bsd/freebsd/pkgs/fsck_ffs.nix
new file mode 100644
index 000000000000..a6082d569b5e
--- /dev/null
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/fsck_ffs.nix
@@ -0,0 +1,13 @@
+{
+  lib,
+  mkDerivation,
+  libufs,
+}:
+mkDerivation {
+  path = "sbin/fsck_ffs";
+  extraPaths = [ "sbin/mount" ];
+
+  buildInputs = [ libufs ];
+
+  meta.platforms = lib.platforms.freebsd;
+}
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/fsck_msdosfs.nix b/pkgs/os-specific/bsd/freebsd/pkgs/fsck_msdosfs.nix
new file mode 100644
index 000000000000..99b8d74ec4ed
--- /dev/null
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/fsck_msdosfs.nix
@@ -0,0 +1,10 @@
+{ lib, mkDerivation }:
+mkDerivation {
+  path = "sbin/fsck_msdosfs";
+  extraPaths = [
+    "sbin/mount"
+    "sbin/fsck"
+  ];
+
+  meta.platforms = lib.platforms.freebsd;
+}
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/kldxref.nix b/pkgs/os-specific/bsd/freebsd/pkgs/kldxref.nix
new file mode 100644
index 000000000000..6c930a51db88
--- /dev/null
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/kldxref.nix
@@ -0,0 +1,15 @@
+{
+  mkDerivation,
+  libelf,
+  compatIfNeeded,
+}:
+mkDerivation {
+  path = "usr.sbin/kldxref";
+
+  buildInputs = [ libelf ] ++ compatIfNeeded;
+
+  # We symlink in our modules, make it follow symlinks
+  postPatch = ''
+    sed -i 's/FTS_PHYSICAL/FTS_LOGICAL/' $BSDSRCDIR/usr.sbin/kldxref/kldxref.c
+  '';
+}
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/libc/package.nix b/pkgs/os-specific/bsd/freebsd/pkgs/libc/package.nix
index a991e6926582..6d31b1fc49e3 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/libc/package.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/libc/package.nix
@@ -187,7 +187,7 @@ mkDerivation {
       find . \( -type f -o -type l \) -exec cp -pr \{} $out/\{} \;
       popd
 
-      mkdir $BSDSRCDIR/lib/libcompiler_rt/i386
+      mkdir $BSDSRCDIR/lib/libcompiler_rt/i386 $BSDSRCDIR/lib/libcompiler_rt/cpu_model
       make -C $BSDSRCDIR/lib/libcompiler_rt $makeFlags
       make -C $BSDSRCDIR/lib/libcompiler_rt $makeFlags install
 
@@ -195,7 +195,7 @@ mkDerivation {
       make -C $BSDSRCDIR/lib/libgcc_eh $makeFlags install
 
       ln -s $BSDSRCDIR/lib/libc/libc.so.7 $BSDSRCDIR/lib/libc/libc.so  # not sure
-      mkdir $BSDSRCDIR/lib/libgcc_s/i386
+      mkdir $BSDSRCDIR/lib/libgcc_s/i386 $BSDSRCDIR/lib/libgcc_s/cpu_model
       make -C $BSDSRCDIR/lib/libgcc_s $makeFlags
       make -C $BSDSRCDIR/lib/libgcc_s $makeFlags install
 
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/libelf.nix b/pkgs/os-specific/bsd/freebsd/pkgs/libelf.nix
index a116aff81f39..0a077e5aee1c 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/libelf.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/libelf.nix
@@ -1,6 +1,6 @@
 {
+  stdenv,
   mkDerivation,
-  lib,
   bsdSetupHook,
   freebsdSetupHook,
   makeMinimal,
@@ -16,7 +16,6 @@ mkDerivation {
     "sys/sys/elf64.h"
     "sys/sys/elf_common.h"
   ];
-  buildInputs = [ ];
   nativeBuildInputs = [
     bsdSetupHook
     freebsdSetupHook
@@ -25,5 +24,5 @@ mkDerivation {
     m4
   ];
 
-  meta.platforms = lib.platforms.freebsd;
+  BOOTSTRAPPING = !stdenv.hostPlatform.isFreeBSD;
 }
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/mount.nix b/pkgs/os-specific/bsd/freebsd/pkgs/mount.nix
index a4885871ad1c..69ce44762ee1 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/mount.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/mount.nix
@@ -1,8 +1,8 @@
 {
+  lib,
   mkDerivation,
   libutil,
   libxo,
-  ...
 }:
 mkDerivation {
   path = "sbin/mount";
@@ -10,4 +10,6 @@ mkDerivation {
     libutil
     libxo
   ];
+
+  meta.platforms = lib.platforms.freebsd;
 }
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/mount_msdosfs.nix b/pkgs/os-specific/bsd/freebsd/pkgs/mount_msdosfs.nix
index da42260ffbad..60e03134d36d 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/mount_msdosfs.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/mount_msdosfs.nix
@@ -1,6 +1,12 @@
-{ mkDerivation, libkiconv }:
+{
+  lib,
+  mkDerivation,
+  libkiconv,
+}:
 mkDerivation {
   path = "sbin/mount_msdosfs";
   extraPaths = [ "sbin/mount" ];
   buildInputs = [ libkiconv ];
+
+  meta.platforms = lib.platforms.freebsd;
 }
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/rc.nix b/pkgs/os-specific/bsd/freebsd/pkgs/rc.nix
index 92b645851b9c..352d0e238de5 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/rc.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/rc.nix
@@ -9,6 +9,7 @@
   id,
   protect,
   mount,
+  fsck,
 }:
 let
   rcDepsPath = lib.makeBinPath [
@@ -20,16 +21,24 @@ let
     id
     mount
     protect
+    fsck
   ];
 in
 mkDerivation {
   path = "libexec/rc";
   MK_TESTS = "no";
 
+  outputs = [
+    "out"
+    "services"
+  ];
+
   postPatch =
     ''
-      substituteInPlace "$BSDSRCDIR/libexec/rc/rc.d/Makefile" "$BSDSRCDIR/libexec/rc/Makefile" --replace-fail /etc $out/etc
-      substituteInPlace "$BSDSRCDIR/libexec/rc/rc.d/Makefile" --replace-fail /var $out/var
+      substituteInPlace "$BSDSRCDIR/libexec/rc/Makefile" --replace-fail /etc $out/etc
+      substituteInPlace "$BSDSRCDIR/libexec/rc/rc.d/Makefile" \
+        --replace-fail /etc $services/etc \
+        --replace-fail /var $services/var
     ''
     + (
       let
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/stand-efi.nix b/pkgs/os-specific/bsd/freebsd/pkgs/stand-efi.nix
index c2d42af7814a..1bb3926f2a23 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/stand-efi.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/stand-efi.nix
@@ -21,6 +21,7 @@ mkDerivation {
     "lib/libc"
     "lib/liblua"
     "libexec/flua"
+    "lib/flua"
     "stand"
     "sys"
   ];
diff --git a/pkgs/os-specific/bsd/freebsd/pkgs/sys/package.nix b/pkgs/os-specific/bsd/freebsd/pkgs/sys/package.nix
index 5bca92269212..62a78dcded91 100644
--- a/pkgs/os-specific/bsd/freebsd/pkgs/sys/package.nix
+++ b/pkgs/os-specific/bsd/freebsd/pkgs/sys/package.nix
@@ -21,6 +21,7 @@
   file2c,
   bintrans,
   xargs-j,
+  kldxref,
 }:
 let
   hostArchBsd = freebsd-lib.mkBsdArch stdenv;
@@ -83,6 +84,7 @@ mkDerivation rec {
     file2c
     bintrans
     xargs-j
+    kldxref
   ];
 
   # --dynamic-linker /red/herring is used when building the kernel.
@@ -98,7 +100,10 @@ mkDerivation rec {
   ];
 
   # hardeningDisable = stackprotector doesn't seem to be enough, put it in cflags too
-  NIX_CFLAGS_COMPILE = "-fno-stack-protector";
+  NIX_CFLAGS_COMPILE = [
+    "-fno-stack-protector"
+    "-Wno-unneeded-internal-declaration" # some openzfs code trips this
+  ];
 
   inherit env;
   passthru.env = env;
diff --git a/pkgs/os-specific/bsd/freebsd/versions.json b/pkgs/os-specific/bsd/freebsd/versions.json
index 3f781b4eeaf2..198b99957864 100644
--- a/pkgs/os-specific/bsd/freebsd/versions.json
+++ b/pkgs/os-specific/bsd/freebsd/versions.json
@@ -1,15 +1,15 @@
 {
   "main": {
-    "hash": "sha256-3aUsD2yRqVvb12z2XPmhE5/u4d9bqyD2ZHH3xNmwYwU=",
+    "hash": "sha256-jQpuNjo7n5b4yXGgXR9ggTkrb4r4pFPXdunBipetw+c=",
     "ref": "main",
     "refType": "branch",
-    "rev": "aa34b1d20e44141749ffdecf16908fc1e5db4db6",
+    "rev": "82283cad12a417abfb1469d899b2d7cfb1d38f77",
     "supported": false,
     "version": {
       "branch": "CURRENT",
       "major": 15,
       "minor": 0,
-      "reldate": "1500018",
+      "reldate": "1500021",
       "release": "15.0-CURRENT",
       "revision": "15.0",
       "type": "FreeBSD",
@@ -106,6 +106,24 @@
       "version": "FreeBSD 14.0-RELEASE"
     }
   },
+  "release/14.1.0": {
+    "hash": "sha256-k4Bs5zR17wHPYrL04aUyPswYGdCWVcRYZOTCDp2VTfk=",
+    "ref": "release/14.1.0",
+    "refType": "tag",
+    "rev": "10e31f0946d820d53adc58b7d013b969e4a9a8ed",
+    "supported": false,
+    "version": {
+      "branch": "RELEASE",
+      "major": 14,
+      "minor": 1,
+      "patch": 0,
+      "reldate": "1401000",
+      "release": "14.1-RELEASE",
+      "revision": "14.1",
+      "type": "FreeBSD",
+      "version": "FreeBSD 14.1-RELEASE"
+    }
+  },
   "releng/13.0": {
     "hash": "sha256-7PrqTb2o21IQgQ2N+zjavlzX/ju60Rw+MXjMRICmQi0=",
     "ref": "releng/13.0",
@@ -143,91 +161,109 @@
     }
   },
   "releng/13.2": {
-    "hash": "sha256-KN508aIe02Ue4TjlonO6TmAQ7DmiOOSOYrZfg5HP9AM=",
+    "hash": "sha256-1awVV7Zm3GfgZvefoLKrKhIOu1559mBCakmRo+oVAGA=",
     "ref": "releng/13.2",
     "refType": "branch",
-    "rev": "f5ac4e174fdd3497749e351c27aafb34171c5730",
-    "supported": true,
+    "rev": "f0cf0b8266eef39b13917f7bed808daf6d6a2d3e",
+    "supported": false,
     "version": {
-      "branch": "RELEASE-p11",
+      "branch": "RELEASE-p12",
       "major": 13,
       "minor": 2,
-      "patch": "11",
+      "patch": "12",
       "reldate": "1302001",
-      "release": "13.2-RELEASE-p11",
+      "release": "13.2-RELEASE-p12",
       "revision": "13.2",
       "type": "FreeBSD",
-      "version": "FreeBSD 13.2-RELEASE-p11"
+      "version": "FreeBSD 13.2-RELEASE-p12"
     }
   },
   "releng/13.3": {
-    "hash": "sha256-g3i9q9XihesdfQxGy3oC7IMGtbWaLNwFlNzbdvS/4ng=",
+    "hash": "sha256-jvXIrlNmaGe4gyYCK/3wjm9JWBQOU0sD1LPxWykNddI=",
     "ref": "releng/13.3",
     "refType": "branch",
-    "rev": "be4f1894ef399f421bab451e8cf8557e27e5a948",
+    "rev": "deb948cd8dc2efb341ce96e1b7a56c9fbc662ba1",
     "supported": true,
     "version": {
-      "branch": "RELEASE-p2",
+      "branch": "RELEASE-p4",
       "major": 13,
       "minor": 3,
-      "patch": "2",
+      "patch": "4",
       "reldate": "1303001",
-      "release": "13.3-RELEASE-p2",
+      "release": "13.3-RELEASE-p4",
       "revision": "13.3",
       "type": "FreeBSD",
-      "version": "FreeBSD 13.3-RELEASE-p2"
+      "version": "FreeBSD 13.3-RELEASE-p4"
     }
   },
   "releng/14.0": {
-    "hash": "sha256-15B9Nglshniokju88dEKj3BIffZ6L28L+ZuhAC3UqOI=",
+    "hash": "sha256-kQ3r/bnBiOZ6kpnouFLKWdpSiJe3FGWJ/XA6VRNFzEc=",
     "ref": "releng/14.0",
     "refType": "branch",
-    "rev": "d338712beb16ad7740bbd00bd93299a131a68045",
+    "rev": "5e23806790ef4825ac09b458d3df941748599fbb",
     "supported": true,
     "version": {
-      "branch": "RELEASE-p6",
+      "branch": "RELEASE-p8",
       "major": 14,
       "minor": 0,
-      "patch": "6",
+      "patch": "8",
       "reldate": "1400097",
-      "release": "14.0-RELEASE-p6",
+      "release": "14.0-RELEASE-p8",
       "revision": "14.0",
       "type": "FreeBSD",
-      "version": "FreeBSD 14.0-RELEASE-p6"
+      "version": "FreeBSD 14.0-RELEASE-p8"
+    }
+  },
+  "releng/14.1": {
+    "hash": "sha256-rURDGcnMzUhz2I873d5ro+wGY+i8IOmiPJ5T+w4TcPA=",
+    "ref": "releng/14.1",
+    "refType": "branch",
+    "rev": "dcdea9e8623e83e3aef15fff0d6ead05382ad138",
+    "supported": true,
+    "version": {
+      "branch": "RELEASE-p2",
+      "major": 14,
+      "minor": 1,
+      "patch": "2",
+      "reldate": "1401000",
+      "release": "14.1-RELEASE-p2",
+      "revision": "14.1",
+      "type": "FreeBSD",
+      "version": "FreeBSD 14.1-RELEASE-p2"
     }
   },
   "stable/13": {
-    "hash": "sha256-ItC8haDdxMSZt1thpCrn8p0xxvs7Uqh/uNo1OwMalj8=",
+    "hash": "sha256-kbz6dpkCVYrTcPNJtKvX0TVQ4qULaOJ/WzCeQ4MYrFU=",
     "ref": "stable/13",
     "refType": "branch",
-    "rev": "825cb4c850f2b97cfd1b24ed421d7938bf37eee7",
-    "supported": true,
-    "version": {
-      "branch": "STABLE",
-      "major": 13,
-      "minor": 3,
-      "reldate": "1303503",
-      "release": "13.3-STABLE",
-      "revision": "13.3",
-      "type": "FreeBSD",
-      "version": "FreeBSD 13.3-STABLE"
-    }
-  },
-  "stable/14": {
-    "hash": "sha256-iAj75IXJi4Oium6BqFvsyQipDP2crBZIGg0Dac8Zf1g=",
-    "ref": "stable/14",
-    "refType": "branch",
-    "rev": "a3b8266f5420601e231bc08c5402d9a4929fbdc0",
+    "rev": "8d87e47b8d1093a264ca954620b9e58b81fb9b34",
     "supported": true,
     "version": {
       "branch": "PRERELEASE",
+      "major": 13,
+      "minor": 4,
+      "reldate": "1303503",
+      "release": "13.4-PRERELEASE",
+      "revision": "13.4",
+      "type": "FreeBSD",
+      "version": "FreeBSD 13.4-PRERELEASE"
+    }
+  },
+  "stable/14": {
+    "hash": "sha256-ImSKU2m2Ecss1A4uTGvh0Z4ZyhN2jem0If9jlan9tM0=",
+    "ref": "stable/14",
+    "refType": "branch",
+    "rev": "2c75d993783ca4b0d1bf8dcdf424643781326e4b",
+    "supported": true,
+    "version": {
+      "branch": "STABLE",
       "major": 14,
       "minor": 1,
-      "reldate": "1400511",
-      "release": "14.1-PRERELEASE",
+      "reldate": "1401501",
+      "release": "14.1-STABLE",
       "revision": "14.1",
       "type": "FreeBSD",
-      "version": "FreeBSD 14.1-PRERELEASE"
+      "version": "FreeBSD 14.1-STABLE"
     }
   }
 }
diff --git a/pkgs/stdenv/freebsd/default.nix b/pkgs/stdenv/freebsd/default.nix
index 2a2259e84012..08768e0b9131 100644
--- a/pkgs/stdenv/freebsd/default.nix
+++ b/pkgs/stdenv/freebsd/default.nix
@@ -21,7 +21,7 @@ let
   mkExtraBuildCommands0 = cc: ''
     rsrc="$out/resource-root"
     mkdir "$rsrc"
-    ln -s "${lib.getLib cc}/lib/clang/16/include" "$rsrc"
+    ln -s "${lib.getLib cc}/lib/clang/${lib.versions.major cc.version}/include" "$rsrc"
     echo "-resource-dir=$rsrc" >> $out/nix-support/cc-cflags
   '';
   mkExtraBuildCommands =
@@ -87,7 +87,8 @@ let
           "bin/clang++"
           "bin/cpp"
         ];
-        version = "16";
+        # SYNCME: this version number must be synced with the one in make-bootstrap-tools.nix
+        version = "18";
       };
       libunwind = linkBootstrap {
         name = "libunwind";
diff --git a/pkgs/stdenv/freebsd/make-bootstrap-tools.nix b/pkgs/stdenv/freebsd/make-bootstrap-tools.nix
index d65c420fa1b7..fe133eb72a56 100644
--- a/pkgs/stdenv/freebsd/make-bootstrap-tools.nix
+++ b/pkgs/stdenv/freebsd/make-bootstrap-tools.nix
@@ -48,6 +48,8 @@
   '';
   bootstrap-tools = tar-all "bootstrap-tools.tar.xz" (
     with pkgs;
+    # SYNCME: this version number must be synced with the one in default.nix
+    let llvmPackages = llvmPackages_18; in
     [
       (runCommand "bsdcp" { } "mkdir -p $out/bin; cp ${freebsd.cp}/bin/cp $out/bin/bsdcp")
       coreutils
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 894e0644189e..f0ba6d69d88b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15974,7 +15974,7 @@ with pkgs;
     # assumption is that or any later version is good.
     choose = platform:
       /**/ if platform.isDarwin then 16
-      else if platform.isFreeBSD then 16
+      else if platform.isFreeBSD then 18
       else if platform.isOpenBSD then 18
       else if platform.isAndroid then 12
       else if platform.isLinux then 18