diff --git a/UPDATING b/UPDATING
index 5d10c538361..39938937490 100644
--- a/UPDATING
+++ b/UPDATING
@@ -16,7 +16,7 @@ from older versions of FreeBSD, try WITHOUT_CLANG and WITH_GCC to bootstrap to
 the tip of head, and then rebuild without this option. The bootstrap process
 from older version of current across the gcc/clang cutover is a bit fragile.
 
-NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW:
+NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.x IS SLOW:
 	FreeBSD 11.x has many debugging features turned on, in both the kernel
 	and userland.  These features attempt to detect incorrect use of
 	system primitives, and encourage loud failure through extra sanity
diff --git a/gnu/usr.bin/cc/cc_tools/freebsd-native.h b/gnu/usr.bin/cc/cc_tools/freebsd-native.h
index bd3ce1e9e4a..eb76f5898c2 100644
--- a/gnu/usr.bin/cc/cc_tools/freebsd-native.h
+++ b/gnu/usr.bin/cc/cc_tools/freebsd-native.h
@@ -7,8 +7,8 @@
 #define FREEBSD_NATIVE 1
 
 /* Fake out gcc/config/freebsd<version>.h.  */
-#define	FBSD_MAJOR	11
-#define	FBSD_CC_VER	1100002		/* form like __FreeBSD_version */
+#define	FBSD_MAJOR	12
+#define	FBSD_CC_VER	1100000		/* form like __FreeBSD_version */
 
 #undef SYSTEM_INCLUDE_DIR		/* We don't need one for now. */
 #undef TOOL_INCLUDE_DIR			/* We don't need one for now. */
diff --git a/gnu/usr.bin/groff/tmac/mdoc.local.in b/gnu/usr.bin/groff/tmac/mdoc.local.in
index 046b16b249c..ac1bebc1ca5 100644
--- a/gnu/usr.bin/groff/tmac/mdoc.local.in
+++ b/gnu/usr.bin/groff/tmac/mdoc.local.in
@@ -63,6 +63,7 @@
 .ds doc-operating-system-FreeBSD-10.0   10.0
 .ds doc-operating-system-FreeBSD-10.1   10.1
 .ds doc-operating-system-FreeBSD-11.0   11.0
+.ds doc-operating-system-FreeBSD-11.0   12.0
 .
 .\" Definitions for other *BSDs not (yet) in doc-common
 .ds doc-operating-system-NetBSD-7.0     7.0
diff --git a/lib/clang/clang.build.mk b/lib/clang/clang.build.mk
index a2ee0a515b7..325b3272d90 100644
--- a/lib/clang/clang.build.mk
+++ b/lib/clang/clang.build.mk
@@ -32,8 +32,8 @@ TARGET_ABI=	gnueabi
 TARGET_ABI=	unknown
 .endif
 
-TARGET_TRIPLE?=	${TARGET_ARCH:C/amd64/x86_64/:C/arm64/aarch64/}-${TARGET_ABI}-freebsd11.0
-BUILD_TRIPLE?=	${BUILD_ARCH:C/amd64/x86_64/:C/arm64/aarch64/}-unknown-freebsd11.0
+TARGET_TRIPLE?=	${TARGET_ARCH:C/amd64/x86_64/:C/arm64/aarch64/}-${TARGET_ABI}-freebsd12.0
+BUILD_TRIPLE?=	${BUILD_ARCH:C/amd64/x86_64/:C/arm64/aarch64/}-unknown-freebsd12.0
 CFLAGS+=	-DLLVM_DEFAULT_TARGET_TRIPLE=\"${TARGET_TRIPLE}\" \
 		-DLLVM_HOST_TRIPLE=\"${BUILD_TRIPLE}\" \
 		-DDEFAULT_SYSROOT=\"${TOOLS_PREFIX}\"
diff --git a/release/doc/share/xml/release.ent b/release/doc/share/xml/release.ent
index f72b4d0cc22..626a4310989 100644
--- a/release/doc/share/xml/release.ent
+++ b/release/doc/share/xml/release.ent
@@ -19,10 +19,10 @@
 <!ENTITY release.prev.stable "9.3-RELEASE">
 
 <!-- The next version to be released, usually used for snapshots. -->
-<!ENTITY release.next "11.0-RELEASE">
+<!ENTITY release.next "12.0-RELEASE">
 
 <!-- The name of this branch. -->
-<!ENTITY release.branch "11-CURRENT">
+<!ENTITY release.branch "12-CURRENT">
 
 <!-- The URL for obtaining this version of FreeBSD. -->
 <!ENTITY release.url "https://www.FreeBSD.org/snapshots/">
diff --git a/sys/conf/newvers.sh b/sys/conf/newvers.sh
index 7e6b1d248e8..ca2ebc82247 100644
--- a/sys/conf/newvers.sh
+++ b/sys/conf/newvers.sh
@@ -31,8 +31,8 @@
 # $FreeBSD$
 
 TYPE="FreeBSD"
-REVISION="11.0"
-BRANCH="ALPHA6"
+REVISION="12.0"
+BRANCH="CURRENT"
 if [ -n "${BRANCH_OVERRIDE}" ]; then
 	BRANCH=${BRANCH_OVERRIDE}
 fi
diff --git a/sys/sys/param.h b/sys/sys/param.h
index 5da801639b3..7d9afd6b8fa 100644
--- a/sys/sys/param.h
+++ b/sys/sys/param.h
@@ -58,7 +58,7 @@
  *		in the range 5 to 9.
  */
 #undef __FreeBSD_version
-#define __FreeBSD_version 1100120	/* Master, propagated to newvers */
+#define __FreeBSD_version 1200000	/* Master, propagated to newvers */
 
 /*
  * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,