diff --git a/README.md b/README.md
index f92d572..aa99174 100644
--- a/README.md
+++ b/README.md
@@ -4,14 +4,23 @@
 build the various components of the PNOR firmware, including Hostboot, Skiboot,
 OCC, Petitboot etc.
 
+## Documentation
+
+https://open-power.github.io/op-build/
+
+See the doc/ directory for documentation source. Contributions
+are *VERY* welcome!
+
 ## Development
 
 Issues, Milestones, pull requests and code hosting is on GitHub:
 https://github.com/open-power/op-build
 
-Mailing list: openpower-firmware@lists.ozlabs.org  
-Info/Subscribe: https://lists.ozlabs.org/listinfo/openpower-firmware  
-Archives: https://lists.ozlabs.org/pipermail/openpower-firmware/
+See [CONTRIBUTING.md](CONTRIBUTING.md) for howto contribute code.
+
+* Mailing list: openpower-firmware@lists.ozlabs.org
+* Info/Subscribe: https://lists.ozlabs.org/listinfo/openpower-firmware  
+* Archives: https://lists.ozlabs.org/pipermail/openpower-firmware/
 
 ## Building an image
 
@@ -25,7 +34,9 @@
 ```
 
 There are also default configurations for other platforms in
-`openpower/configs/` such as Habanero and Firestone.
+`openpower/configs/`. Current POWER8 platforms include Habanero,
+Firestone, and Garrison. Current POWER9 platforms include Witherspoon,
+Boston (p9dsu), Romulus, and Zaius.
 
 Buildroot/op-build supports both native and cross-compilation - it will
 automatically download and build an appropriate toolchain as part of the build
diff --git a/openpower/configs/witherspoon_defconfig b/openpower/configs/witherspoon_defconfig
index 9c9e145..5f50e7f 100644
--- a/openpower/configs/witherspoon_defconfig
+++ b/openpower/configs/witherspoon_defconfig
@@ -42,7 +42,7 @@
 BR2_OPENPOWER_POWER9=y
 BR2_HOSTBOOT_CONFIG_FILE="witherspoon.config"
 BR2_OPENPOWER_MACHINE_XML_GITHUB_PROJECT_VALUE="witherspoon-xml"
-BR2_OPENPOWER_MACHINE_XML_VERSION="6ca015dbd3e1e9d5206f9ec13ec9db2d8965e181"
+BR2_OPENPOWER_MACHINE_XML_VERSION="c10638fa2a834c216f28da7705da331bc0bad4bf"
 BR2_OPENPOWER_MACHINE_XML_FILENAME="witherspoon.xml"
 BR2_OPENPOWER_SYSTEM_XML_FILENAME="WITHERSPOON_hb.system.xml"
 BR2_OPENPOWER_MRW_XML_FILENAME="WITHERSPOON_hb.mrw.xml"
diff --git a/openpower/configs/zaius_defconfig b/openpower/configs/zaius_defconfig
index 3f61998..05a5455 100644
--- a/openpower/configs/zaius_defconfig
+++ b/openpower/configs/zaius_defconfig
@@ -41,7 +41,7 @@
 BR2_OPENPOWER_POWER9=y
 BR2_HOSTBOOT_CONFIG_FILE="zaius.config"
 BR2_OPENPOWER_MACHINE_XML_GITHUB_PROJECT_VALUE="zaius-xml"
-BR2_OPENPOWER_MACHINE_XML_VERSION="5e48835aacb178c77e2c8a02be6d6e939f1c1090"
+BR2_OPENPOWER_MACHINE_XML_VERSION="4b012a3d1da538b3fb97c332b6fce51a6cffaf9a"
 BR2_OPENPOWER_MACHINE_XML_FILENAME="zaius.xml"
 BR2_OPENPOWER_SYSTEM_XML_FILENAME="ZAIUS_hb.system.xml"
 BR2_OPENPOWER_MRW_XML_FILENAME="ZAIUS_hb.mrw.xml"
diff --git a/openpower/configs/zz_defconfig b/openpower/configs/zz_defconfig
index fdbefdd..cae39b1 100644
--- a/openpower/configs/zz_defconfig
+++ b/openpower/configs/zz_defconfig
@@ -45,6 +45,7 @@
 # BR2_PACKAGE_OPENPOWER_PNOR is not set
 BR2_OPENPOWER_CONFIG_NAME="openpower-firenze"
 # BR2_TARGET_SKIBOOT_XZ is not set
+# BR2_BUILD_PNOR_SQUASHFS is not set
 BR2_PACKAGE_PETITBOOT=y
 BR2_PACKAGE_PETITBOOT_MTD=y
 # BR2_PACKAGE_HOST_P8_PORE_BINUTILS is not set
@@ -54,3 +55,5 @@
 # BR2_PACKAGE_HOST_PPE42_BINUTILS is not set
 # BR2_PACKAGE_HOST_PPE42_GCC is not set
 # BR2_PACKAGE_IMA_CATALOG is not set
+# BR2_PACKAGE_SBE is not set
+# BR2_PACKAGE_HOST_SB_SIGNING_UTILS is not set
diff --git a/openpower/package/hostboot-binaries/hostboot_binaries.mk b/openpower/package/hostboot-binaries/hostboot_binaries.mk
index 11a69e9..6d24276 100644
--- a/openpower/package/hostboot-binaries/hostboot_binaries.mk
+++ b/openpower/package/hostboot-binaries/hostboot_binaries.mk
@@ -5,7 +5,7 @@
 ################################################################################
 
 
-HOSTBOOT_BINARIES_VERSION ?= f9351dbabe338ecb0ee4f3d4dd28e487899e45b6
+HOSTBOOT_BINARIES_VERSION ?= ec7c35df30f446361bf1905c2f4366ea2b5c5343
 HOSTBOOT_BINARIES_SITE ?= $(call github,open-power,hostboot-binaries,$(HOSTBOOT_BINARIES_VERSION))
 
 HOSTBOOT_BINARIES_LICENSE = Apache-2.0
diff --git a/openpower/package/hostboot/hostboot.mk b/openpower/package/hostboot/hostboot.mk
index 17864c3..70fac21 100644
--- a/openpower/package/hostboot/hostboot.mk
+++ b/openpower/package/hostboot/hostboot.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 HOSTBOOT_VERSION_BRANCH_MASTER_P8 ?= d3025f5d7ddd0723946bb54fcb471d2bf1fd2da4
-HOSTBOOT_VERSION_BRANCH_MASTER ?= 2414e7c8e5de03e829022693f7813809313f40fc
+HOSTBOOT_VERSION_BRANCH_MASTER ?= c82b626e6ea1d56c0d25cbd5954064e256135002
 
 HOSTBOOT_VERSION ?= $(if $(BR2_OPENPOWER_POWER9),$(HOSTBOOT_VERSION_BRANCH_MASTER),$(HOSTBOOT_VERSION_BRANCH_MASTER_P8))
 HOSTBOOT_SITE ?= $(call github,open-power,hostboot,$(HOSTBOOT_VERSION))
diff --git a/openpower/package/ima-catalog/ima-catalog.mk b/openpower/package/ima-catalog/ima-catalog.mk
index 7e469bd..9ee205f 100644
--- a/openpower/package/ima-catalog/ima-catalog.mk
+++ b/openpower/package/ima-catalog/ima-catalog.mk
@@ -3,7 +3,7 @@
 # ima-catalog.mk
 #
 ################################################################################
-IMA_CATALOG_VERSION ?= 01b26a136da16a87c0b6b3c4d9f27555dca104dc 
+IMA_CATALOG_VERSION ?= 90237254664cadab529a397965083e38806d92e6 
 IMA_CATALOG_SITE ?= $(call github,open-power,ima-catalog,$(IMA_CATALOG_VERSION))
 IMA_CATALOG_LICENSE = Apache-2.0
 IMA_CATALOG_DEPENDENCIES = host-dtc host-xz
diff --git a/openpower/package/occ/occ.mk b/openpower/package/occ/occ.mk
index a865e06..547747d 100644
--- a/openpower/package/occ/occ.mk
+++ b/openpower/package/occ/occ.mk
@@ -5,7 +5,7 @@
 ################################################################################
 
 OCC_VERSION_BRANCH_MASTER_P8 ?= 28f2cec690b7f19548ce860a8820f519e6c39a6a
-OCC_VERSION_BRANCH_MASTER ?= 2fe8f2c01e62eb73dd441dd5e0d386f40150787d
+OCC_VERSION_BRANCH_MASTER ?= 768466b31e853cb11dfa90dbfc1565a21ee9646e
 
 OCC_VERSION ?= $(if $(BR2_OPENPOWER_POWER9),$(OCC_VERSION_BRANCH_MASTER),$(OCC_VERSION_BRANCH_MASTER_P8))
 OCC_SITE ?= $(call github,open-power,occ,$(OCC_VERSION))
diff --git a/openpower/package/petitboot/petitboot.mk b/openpower/package/petitboot/petitboot.mk
index e1afef1..38db0e4 100644
--- a/openpower/package/petitboot/petitboot.mk
+++ b/openpower/package/petitboot/petitboot.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-PETITBOOT_VERSION = v1.7.0
+PETITBOOT_VERSION = v1.7.1
 PETITBOOT_SITE ?= $(call github,open-power,petitboot,$(PETITBOOT_VERSION))
 PETITBOOT_DEPENDENCIES = ncurses udev host-bison host-flex lvm2
 PETITBOOT_LICENSE = GPLv2
diff --git a/openpower/package/sbe/sbe.mk b/openpower/package/sbe/sbe.mk
index 537ab4c..fa50a0c 100644
--- a/openpower/package/sbe/sbe.mk
+++ b/openpower/package/sbe/sbe.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-SBE_VERSION ?= 75ddac2a41a9f5cb32a7028b811e6852d5aead89
+SBE_VERSION ?= ab0fc4ba6ffbc830c9e48b8b6542a1bb12ebdbbd
 SBE_SITE ?= $(call github,open-power,sbe,$(SBE_VERSION))
 
 SBE_LICENSE = Apache-2.0
diff --git a/openpower/package/skiboot/Config.in b/openpower/package/skiboot/Config.in
index 1ebf0cd..a240be4 100644
--- a/openpower/package/skiboot/Config.in
+++ b/openpower/package/skiboot/Config.in
@@ -31,7 +31,7 @@
 
 config BR2_SKIBOOT_VERSION
 	string
-	default "v5.10-34-g0f3584d84662" if BR2_SKIBOOT_LATEST_VERSION
+	default "v5.10-45-g84186ef0944c" if BR2_SKIBOOT_LATEST_VERSION
 	default BR2_SKIBOOT_CUSTOM_VERSION_VALUE \
 		if BR2_SKIBOOT_CUSTOM_VERSION