diff --git a/board/solidrun/clearfog/readme.txt b/board/solidrun/clearfog/readme.txt
index 6046836f01..60bf95329c 100644
--- a/board/solidrun/clearfog/readme.txt
+++ b/board/solidrun/clearfog/readme.txt
@@ -15,13 +15,6 @@ built-in microSD card slot *WILL NOT WORK*. The Internet says that you have to
 upload the first bootloader via UART. This manual does not cover these steps;
 only MicroSoMs without the eMMC are supported.
 
-Limitations
-===========
-
-There's no access to the SPI flash in this combination of kernel/uboot/dts.
-
-There is no support for the SFP.
-
 Build
 =====
 
@@ -49,7 +42,7 @@ command as root:
 
   dd if=output/images/sdcard.img of=/dev/<your-microsd-device> conv=fdatasync
 
-*** WARNING! The script will destroy all the card content. Use with care! ***
+*** WARNING! The dd command will destroy all the card content. Use with care! ***
 
 For details about the medium image layout, see the definition in
 board/solidrun/clearfog/genimage.cfg.
diff --git a/configs/solidrun_clearfog_defconfig b/configs/solidrun_clearfog_defconfig
index 8c6cb83a59..fd6f278aa1 100644
--- a/configs/solidrun_clearfog_defconfig
+++ b/configs/solidrun_clearfog_defconfig
@@ -5,8 +5,8 @@ BR2_ARM_ENABLE_NEON=y
 BR2_ARM_ENABLE_VFP=y
 BR2_ARM_FPU_NEON=y
 
-# Linux headers same as kernel, a 4.17 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_17=y
+# Linux headers same as kernel, a 4.20 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_20=y
 
 # System configuration
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/solidrun/clearfog/post-build.sh"
@@ -16,7 +16,7 @@ BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/solidrun/clearfog/genimage.cfg"
 # Kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.17.2"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.20"
 BR2_LINUX_KERNEL_DEFCONFIG="mvebu_v7"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/solidrun/clearfog/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
@@ -33,7 +33,7 @@ BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2018.05"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2018.11"
 BR2_TARGET_UBOOT_BOARD_DEFCONFIG="clearfog"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
 BR2_TARGET_UBOOT_NEEDS_OPENSSL=y