diff --git a/poky/meta/recipes-support/boost/bjam-native_1.66.0.bb b/poky/meta/recipes-support/boost/bjam-native_1.68.0.bb
similarity index 81%
rename from poky/meta/recipes-support/boost/bjam-native_1.66.0.bb
rename to poky/meta/recipes-support/boost/bjam-native_1.68.0.bb
index 92c86a3..94f96e6 100644
--- a/poky/meta/recipes-support/boost/bjam-native_1.66.0.bb
+++ b/poky/meta/recipes-support/boost/bjam-native_1.68.0.bb
@@ -6,7 +6,7 @@
 inherit native
 
 SRC_URI += "file://bjam-native-build-bjam.debug.patch \
-            file://0001-Fix-a-strange-assert-typo-how-was-this-released-with.patch"
+"
 
 do_compile() {
     ./bootstrap.sh --with-toolset=gcc
diff --git a/poky/meta/recipes-support/boost/boost-1.66.0.inc b/poky/meta/recipes-support/boost/boost-1.68.0.inc
similarity index 85%
rename from poky/meta/recipes-support/boost/boost-1.66.0.inc
rename to poky/meta/recipes-support/boost/boost-1.68.0.inc
index fe2b863..b367a80 100644
--- a/poky/meta/recipes-support/boost/boost-1.66.0.inc
+++ b/poky/meta/recipes-support/boost/boost-1.68.0.inc
@@ -12,8 +12,8 @@
 BOOST_P = "boost_${BOOST_VER}"
 
 SRC_URI = "${SOURCEFORGE_MIRROR}/project/boost/boost/${PV}/${BOOST_P}.tar.bz2"
-SRC_URI[md5sum] = "b2dfbd6c717be4a7bb2d88018eaccf75"
-SRC_URI[sha256sum] = "5721818253e6a0989583192f96782c4a98eb6204965316df9f5ad75819225ca9"
+SRC_URI[md5sum] = "7fbd1890f571051f2a209681d57d486a"
+SRC_URI[sha256sum] = "7f6130bc3cf65f56a618888ce9d5ea704fa10b462be126ad053e80e553d6d8b7"
 
 UPSTREAM_CHECK_URI = "http://www.boost.org/users/download/"
 UPSTREAM_CHECK_REGEX = "boostorg/release/(?P<pver>.*)/source/"
diff --git a/poky/meta/recipes-support/boost/boost.inc b/poky/meta/recipes-support/boost/boost.inc
index 0ff5b7a..c4faea2 100644
--- a/poky/meta/recipes-support/boost/boost.inc
+++ b/poky/meta/recipes-support/boost/boost.inc
@@ -9,6 +9,7 @@
 	atomic \
 	chrono \
 	container \
+	contract \
 	date_time \
 	exception \
 	filesystem \
@@ -134,9 +135,8 @@
 		'--layout=system' \
 		"
 
-# use PARALLEL_MAKE to speed up the build, but limit it by -j 64, greater parallelism causes bjam to segfault or to ignore -j
-# https://svn.boost.org/trac/boost/ticket/7634
-BOOST_PARALLEL_MAKE = "${@oe.utils.parallel_make_argument(d, '-j%d', limit=64)}"
+# use PARALLEL_MAKE to speed up the build
+BOOST_PARALLEL_MAKE = "${@oe.utils.parallel_make_argument(d, '-j%d')}"
 BJAM_OPTS    = '${BOOST_PARALLEL_MAKE} -d+2 -q \
 		${BJAM_TOOLS} \
 		-sBOOST_BUILD_USER_CONFIG=${WORKDIR}/user-config.jam \
diff --git a/poky/meta/recipes-support/boost/boost/0001-make_x86_64_sysv_elf_gas.S-set-.file-section.patch b/poky/meta/recipes-support/boost/boost/0001-make_x86_64_sysv_elf_gas.S-set-.file-section.patch
new file mode 100644
index 0000000..c2ac49e
--- /dev/null
+++ b/poky/meta/recipes-support/boost/boost/0001-make_x86_64_sysv_elf_gas.S-set-.file-section.patch
@@ -0,0 +1,48 @@
+From c99f798407e44c86e9f64f5b1adf3b4d0549eef2 Mon Sep 17 00:00:00 2001
+From: Mingli Yu <Mingli.Yu@windriver.com>
+Date: Fri, 15 Jun 2018 16:21:56 +0800
+Subject: [PATCH] make_x86_64_sysv_elf_gas.S: set .file section
+
+Set .file section explicitly for .S files to avoid
+the linker introduces the host path in symbols for
+object files whose source file is .S
+Otherwise, there is a host path in the symbols as below:
+$ readelf --wide --symbols /my-build/boost/1.67.0-r0/boost_1_67_0/x86_64-poky-linux/boost/bin.v2/libs/context/build/aca09349fdb84d131321425f6c3a38ed/libboost_context.so.1.67.0
+
+42: 0000000000000000 0 FILE LOCAL DEFAULT ABS /my-build/boost/1.67.0-r0/boost_1_67_0/x86_64-poky-linux/boost/bin.v2/libs/context/build/aca09349fdb84d131321425f6c3a38ed/asm/make_x86_64_sysv_elf_gas.o
+
+Upstream-Status: Pending
+
+Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
+---
+ libs/context/src/asm/make_i386_sysv_elf_gas.S   | 1 +
+ libs/context/src/asm/make_x86_64_sysv_elf_gas.S | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/libs/context/src/asm/make_i386_sysv_elf_gas.S b/libs/context/src/asm/make_i386_sysv_elf_gas.S
+index de77e88..b76de26 100644
+--- a/libs/context/src/asm/make_i386_sysv_elf_gas.S
++++ b/libs/context/src/asm/make_i386_sysv_elf_gas.S
+@@ -24,6 +24,7 @@
+  *                                                                                      *
+  ****************************************************************************************/
+ 
++.file "make_i386_sysv_elf_gas.S"
+ .text
+ .globl make_fcontext
+ .align 2
+diff --git a/libs/context/src/asm/make_x86_64_sysv_elf_gas.S b/libs/context/src/asm/make_x86_64_sysv_elf_gas.S
+index 25a0c00..0ef3756 100644
+--- a/libs/context/src/asm/make_x86_64_sysv_elf_gas.S
++++ b/libs/context/src/asm/make_x86_64_sysv_elf_gas.S
+@@ -24,6 +24,7 @@
+  *                                                                                      *
+  ****************************************************************************************/
+ 
++.file "make_x86_64_sysv_elf_gas.S"
+ .text
+ .globl make_fcontext
+ .type make_fcontext,@function
+-- 
+2.7.4
+
diff --git a/poky/meta/recipes-support/boost/boost/0002-Don-t-set-up-m32-m64-we-do-that-ourselves.patch b/poky/meta/recipes-support/boost/boost/0002-Don-t-set-up-m32-m64-we-do-that-ourselves.patch
deleted file mode 100644
index 26f3cbb..0000000
--- a/poky/meta/recipes-support/boost/boost/0002-Don-t-set-up-m32-m64-we-do-that-ourselves.patch
+++ /dev/null
@@ -1,65 +0,0 @@
-From e4d3a7470b307693660d0412732e7266d1738d8c Mon Sep 17 00:00:00 2001
-From: Christopher Larson <chris_larson@mentor.com>
-Date: Tue, 13 Dec 2016 10:29:17 -0700
-Subject: [PATCH 6/6] Don't set up -m32/-m64, we do that ourselves
-
-Upstream-Status: Inappropriate
-Signed-off-by: Christopher Larson <chris_larson@mentor.com>
-
----
- tools/build/src/tools/gcc.jam | 39 ---------------------------------------
- 1 file changed, 39 deletions(-)
-
-diff --git a/tools/build/src/tools/gcc.jam b/tools/build/src/tools/gcc.jam
-index e4fc6c32..37914fd0 100644
---- a/tools/build/src/tools/gcc.jam
-+++ b/tools/build/src/tools/gcc.jam
-@@ -337,45 +337,6 @@ rule set-address-model-options ( targets * : sources * : properties * )
-     {
-         local option ;
-         local target-os = [ feature.get-values target-os : $(properties) ] ;
--        if $(target-os) = aix
--        {
--            if $(model) = 32
--            {
--                option = -maix32 ;
--            }
--            else
--            {
--                option = -maix64 ;
--            }
--        }
--        else if $(target-os) = hpux
--        {
--            if $(model) = 32
--            {
--                option = -milp32 ;
--            }
--            else
--            {
--                option = -mlp64 ;
--            }
--        }
--        else
--        {
--            local arch = [ feature.get-values architecture : $(properties) ] ;
--            if $(arch) = power || $(arch) = sparc || $(arch) = x86
--            {
--                if $(model) = 32
--                {
--                    option = -m32 ;
--                }
--                else if $(model) = 64
--                {
--                    option = -m64 ;
--                }
--            }
--            # For darwin, the model can be 32_64. darwin.jam will handle that
--            # on its own.
--        }
-         OPTIONS on $(targets) += $(option) ;
-     }
- }
--- 
-2.15.1
-
diff --git a/poky/meta/recipes-support/boost/boost_1.66.0.bb b/poky/meta/recipes-support/boost/boost_1.66.0.bb
deleted file mode 100644
index 63b82a5..0000000
--- a/poky/meta/recipes-support/boost/boost_1.66.0.bb
+++ /dev/null
@@ -1,11 +0,0 @@
-require boost-${PV}.inc
-require boost.inc
-
-SRC_URI += "\
-    file://arm-intrinsics.patch \
-    file://boost-CVE-2012-2677.patch \
-    file://boost-math-disable-pch-for-gcc.patch \
-    file://0001-Apply-boost-1.62.0-no-forced-flags.patch.patch \
-    file://0003-Don-t-set-up-arch-instruction-set-flags-we-do-that-o.patch \
-    file://0002-Don-t-set-up-m32-m64-we-do-that-ourselves.patch \
-"
diff --git a/poky/meta/recipes-support/boost/boost_1.68.0.bb b/poky/meta/recipes-support/boost/boost_1.68.0.bb
new file mode 100644
index 0000000..c7958a4
--- /dev/null
+++ b/poky/meta/recipes-support/boost/boost_1.68.0.bb
@@ -0,0 +1,11 @@
+require boost-${PV}.inc
+require boost.inc
+
+SRC_URI += "\
+           file://arm-intrinsics.patch \
+           file://boost-CVE-2012-2677.patch \
+           file://boost-math-disable-pch-for-gcc.patch \
+           file://0001-Apply-boost-1.62.0-no-forced-flags.patch.patch \
+           file://0003-Don-t-set-up-arch-instruction-set-flags-we-do-that-o.patch \
+           file://0001-make_x86_64_sysv_elf_gas.S-set-.file-section.patch \
+           "
diff --git a/poky/meta/recipes-support/boost/files/0001-Fix-a-strange-assert-typo-how-was-this-released-with.patch b/poky/meta/recipes-support/boost/files/0001-Fix-a-strange-assert-typo-how-was-this-released-with.patch
deleted file mode 100644
index a75133d..0000000
--- a/poky/meta/recipes-support/boost/files/0001-Fix-a-strange-assert-typo-how-was-this-released-with.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From 5685527364198597f25fc1c6236cb64cbc3de44f Mon Sep 17 00:00:00 2001
-From: Alexander Kanavin <alex.kanavin@gmail.com>
-Date: Wed, 4 Oct 2017 18:16:08 +0300
-Subject: [PATCH] Fix a strange assert typo; how was this released without
- noticing?
-
-Upstream-Status: Pending
-Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
----
- tools/build/src/engine/debugger.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/tools/build/src/engine/debugger.c b/tools/build/src/engine/debugger.c
-index 802f262..152a7e6 100644
---- a/tools/build/src/engine/debugger.c
-+++ b/tools/build/src/engine/debugger.c
-@@ -1092,7 +1092,7 @@ static void debug_start_child( int argc, const char * * argv )
-     PROCESS_INFORMATION pi = { NULL, NULL, 0, 0 };
-     STARTUPINFO si = { sizeof( STARTUPINFO ), 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-         0, 0, 0, 0, 0, 0 };
--    assert( DEBUG_STATE == DEBUG_NO_CHILD );
-+    assert( debug_state == DEBUG_NO_CHILD );
-     if ( ! CreatePipe( &pipe1[ 0 ], &pipe1[ 1 ], &sa, 0 ) )
-     {
-         printf("internal error\n");
-@@ -1176,7 +1176,7 @@ static void debug_start_child( int argc, const char * * argv )
-     int read_fd;
-     int pid;
-     int i;
--    assert( DEBUG_STATE == DEBUG_NO_CHILD );
-+    assert( debug_state == DEBUG_NO_CHILD );
-     pipe(pipe1);
-     pipe(pipe2);
-     pid = fork();
--- 
-2.14.1
-