diff --git a/config/kernel-config b/config/kernel-config
index d1c28ea..fba52af 100644
--- a/config/kernel-config
+++ b/config/kernel-config
@@ -1,6 +1,6 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/x86 4.9.19 Kernel Configuration
+# Linux/x86 4.9.21 Kernel Configuration
 #
 CONFIG_64BIT=y
 CONFIG_X86_64=y
@@ -929,7 +929,7 @@ CONFIG_TCP_CONG_HTCP=m
 CONFIG_TCP_CONG_HSTCP=m
 CONFIG_TCP_CONG_HYBLA=m
 CONFIG_TCP_CONG_VEGAS=m
-# CONFIG_TCP_CONG_NV is not set
+CONFIG_TCP_CONG_NV=m
 CONFIG_TCP_CONG_SCALABLE=m
 CONFIG_TCP_CONG_LP=m
 CONFIG_TCP_CONG_VENO=m
@@ -937,8 +937,9 @@ CONFIG_TCP_CONG_YEAH=m
 CONFIG_TCP_CONG_ILLINOIS=m
 CONFIG_TCP_CONG_DCTCP=m
 CONFIG_TCP_CONG_CDG=m
-# CONFIG_TCP_CONG_BBR is not set
+CONFIG_TCP_CONG_BBR=m
 CONFIG_DEFAULT_CUBIC=y
+# CONFIG_DEFAULT_BBR is not set
 # CONFIG_DEFAULT_RENO is not set
 CONFIG_DEFAULT_TCP_CONG="cubic"
 CONFIG_TCP_MD5SIG=y
diff --git a/scripts/release b/scripts/release
index cc50268..69c02b3 100755
--- a/scripts/release
+++ b/scripts/release
@@ -6,7 +6,6 @@ if ! ./scripts/ci; then
 	echo "build failure see release.log"
 	exit 1
 fi
-mv build.log dist/
 
 echo
 echo "--- ${KERNEL_VERSION} Kernel prepared for RancherOS"
@@ -15,7 +14,7 @@ echo "	./dist/kernel/extra-linux-${KERNEL_VERSION}-x86.tar.gz"
 echo "	./dist/kernel/build-linux-${KERNEL_VERSION}-x86.tar.gz"
 echo "	./dist/kernel/linux-${KERNEL_VERSION}-x86.tar.gz"
 echo "	./dist/kernel/config"
-echo "	./dist/build.log"
+echo "	./release.log"
 echo
 echo "Images ready to push:"
 cat dist/images
@@ -29,7 +28,7 @@ echo "github-release upload  --user rancher --repo os-kernel --tag v${KERNEL_VER
 echo "github-release upload  --user rancher --repo os-kernel --tag v${KERNEL_VERSION} --file ./dist/kernel/config --name config" >> dist/publish.sh
 echo "github-release upload  --user rancher --repo os-kernel --tag v${KERNEL_VERSION} --file ./dist/kernel/extra-linux-${KERNEL_VERSION}-x86.tar.gz --name extra-linux-${KERNEL_VERSION}-x86.tar.gz" >> dist/publish.sh
 echo "github-release upload  --user rancher --repo os-kernel --tag v${KERNEL_VERSION} --file ./dist/kernel/linux-${KERNEL_VERSION}-x86.tar.gz --name linux-${KERNEL_VERSION}-x86.tar.gz" >> dist/publish.sh
-echo "github-release upload  --user rancher --repo os-kernel --tag v${KERNEL_VERSION} --file ./dist/build.log --name build.log" >> dist/publish.sh
+echo "github-release upload  --user rancher --repo os-kernel --tag v${KERNEL_VERSION} --file ./release.log --name release.log" >> dist/publish.sh
 
 cat dist/images | sed 's/^/docker push /' >> dist/publish.sh
 chmod 755 dist/publish.sh