diff --git a/poky/meta/classes/baremetal-image.bbclass b/poky/meta/classes/baremetal-image.bbclass
index b0f5e88..8708a54 100644
--- a/poky/meta/classes/baremetal-image.bbclass
+++ b/poky/meta/classes/baremetal-image.bbclass
@@ -50,6 +50,10 @@
         if os.path.lexists(manifest_link):
             os.remove(manifest_link)
         os.symlink(os.path.basename(manifest_name), manifest_link)
+    # A lot of postprocess commands assume the existence of rootfs/etc
+    sysconfdir = d.getVar("IMAGE_ROOTFS") + d.getVar('sysconfdir')
+    bb.utils.mkdirhier(sysconfdir)
+
     execute_pre_post_process(d, d.getVar('ROOTFS_POSTPROCESS_COMMAND'))
 }
 
@@ -73,7 +77,19 @@
 QB_MEM ?= "-m 256"
 QB_DEFAULT_FSTYPE ?= "bin"
 QB_DTB ?= ""
-QB_OPT_APPEND = "-nographic"
+QB_OPT_APPEND_append = " -nographic"
+
+# RISC-V tunes set the BIOS, unset, and instruct QEMU to
+# ignore the BIOS and boot from -kernel
+QB_DEFAULT_BIOS_qemuriscv64 = ""
+QB_OPT_APPEND_append_qemuriscv64 = " -bios none"
+
+
+# Use the medium-any code model for the RISC-V 64 bit implementation,
+# since medlow can only access addresses below 0x80000000 and RAM
+# starts at 0x80000000 on RISC-V 64
+CFLAGS_append_qemuriscv64 = " -mcmodel=medany"
+
 
 # This next part is necessary to trick the build system into thinking
 # its building an image recipe so it generates the qemuboot.conf
diff --git a/poky/meta/classes/cml1.bbclass b/poky/meta/classes/cml1.bbclass
index 1c3d70b..d319d66 100644
--- a/poky/meta/classes/cml1.bbclass
+++ b/poky/meta/classes/cml1.bbclass
@@ -6,7 +6,7 @@
         if s.endswith('.cfg'):
             sources_list.append(s)
 
-    return sorted(sources_list)
+    return sources_list
 
 cml1_do_configure() {
 	set -e
diff --git a/poky/meta/classes/gi-docgen.bbclass b/poky/meta/classes/gi-docgen.bbclass
new file mode 100644
index 0000000..5750f70
--- /dev/null
+++ b/poky/meta/classes/gi-docgen.bbclass
@@ -0,0 +1,24 @@
+# gi-docgen is a new gnome documentation generator, which
+# seems to be a successor to gtk-doc:
+# https://gitlab.gnome.org/GNOME/gi-docgen
+
+# This variable is set to True if api-documentation is in
+# DISTRO_FEATURES, and False otherwise.
+GIDOCGEN_ENABLED ?= "${@bb.utils.contains('DISTRO_FEATURES', 'api-documentation', 'True', 'False', d)}"
+# When building native recipes, disable gi-docgen, as it is not necessary,
+# pulls in additional dependencies, and makes build times longer
+GIDOCGEN_ENABLED_class-native = "False"
+GIDOCGEN_ENABLED_class-nativesdk = "False"
+
+# meson: default option name to enable/disable gi-docgen. This matches most
+# projects' configuration. In doubts - check meson_options.txt in project's
+# source path.
+GIDOCGEN_MESON_OPTION ?= 'gtk_doc'
+GIDOCGEN_MESON_ENABLE_FLAG ?= 'true'
+GIDOCGEN_MESON_DISABLE_FLAG ?= 'false'
+
+# Auto enable/disable based on GIDOCGEN_ENABLED
+EXTRA_OEMESON_prepend = "-D${GIDOCGEN_MESON_OPTION}=${@bb.utils.contains('GIDOCGEN_ENABLED', 'True', '${GIDOCGEN_MESON_ENABLE_FLAG}', '${GIDOCGEN_MESON_DISABLE_FLAG}', d)} "
+
+DEPENDS_append = "${@' gi-docgen-native gi-docgen' if d.getVar('GIDOCGEN_ENABLED') == 'True' else ''}"
+
diff --git a/poky/meta/classes/gnomebase.bbclass b/poky/meta/classes/gnomebase.bbclass
index efcb6ca..884b1a1 100644
--- a/poky/meta/classes/gnomebase.bbclass
+++ b/poky/meta/classes/gnomebase.bbclass
@@ -1,5 +1,6 @@
 def gnome_verdir(v):
-    return oe.utils.trim_version(v, 2)
+    return ".".join(v.split(".")[:-1])
+
 
 GNOME_COMPRESS_TYPE ?= "xz"
 SECTION ?= "x11/gnome"
diff --git a/poky/meta/classes/icecc.bbclass b/poky/meta/classes/icecc.bbclass
index d095305..80943fc 100644
--- a/poky/meta/classes/icecc.bbclass
+++ b/poky/meta/classes/icecc.bbclass
@@ -138,10 +138,6 @@
     if icecc_is_cross_canadian(bb, d):
         return "no"
 
-    if d.getVar('INHIBIT_DEFAULT_DEPS', False):
-        # We don't have a compiler, so no icecc
-        return "no"
-
     pn = d.getVar('PN')
     bpn = d.getVar('BPN')
 
@@ -362,7 +358,7 @@
     ICECC_WHICH_AS="${@bb.utils.which(os.getenv('PATH'), 'as')}"
     if [ ! -x "${ICECC_CC}" -o ! -x "${ICECC_CXX}" ]
     then
-        bbwarn "Cannot use icecc: could not get ICECC_CC or ICECC_CXX"
+        bbnote "Cannot use icecc: could not get ICECC_CC or ICECC_CXX"
         return
     fi
 
diff --git a/poky/meta/classes/image-live.bbclass b/poky/meta/classes/image-live.bbclass
index 8b08305..fd876ed 100644
--- a/poky/meta/classes/image-live.bbclass
+++ b/poky/meta/classes/image-live.bbclass
@@ -261,4 +261,4 @@
 do_bootimg[subimages] = "hddimg iso"
 do_bootimg[imgsuffix] = "."
 
-addtask bootimg before do_image_complete
+addtask bootimg before do_image_complete after do_rootfs
diff --git a/poky/meta/classes/image-mklibs.bbclass b/poky/meta/classes/image-mklibs.bbclass
deleted file mode 100644
index 68e11d4..0000000
--- a/poky/meta/classes/image-mklibs.bbclass
+++ /dev/null
@@ -1,56 +0,0 @@
-do_rootfs[depends] += "mklibs-native:do_populate_sysroot"
-
-IMAGE_PREPROCESS_COMMAND += "mklibs_optimize_image; "
-
-inherit linuxloader
-
-mklibs_optimize_image_doit() {
-	rm -rf ${WORKDIR}/mklibs
-	mkdir -p ${WORKDIR}/mklibs/dest
-	cd ${IMAGE_ROOTFS}
-	du -bs > ${WORKDIR}/mklibs/du.before.mklibs.txt
-
-	# Build a list of dynamically linked executable ELF files.
-	# Omit libc/libpthread as a special case because it has an interpreter
-	# but is primarily what we intend to strip down.
-	for i in `find . -type f -executable ! -name 'libc-*' ! -name 'libpthread-*'`; do
-		file $i | grep -q ELF || continue
-		${HOST_PREFIX}readelf -l $i | grep -q INTERP || continue
-		echo $i
-	done > ${WORKDIR}/mklibs/executables.list
-
-	dynamic_loader=${@get_linuxloader(d)}
-
-	mklibs -v \
-		--ldlib ${dynamic_loader} \
-		--libdir ${baselib} \
-		--sysroot ${PKG_CONFIG_SYSROOT_DIR} \
-		--gcc-options "--sysroot=${PKG_CONFIG_SYSROOT_DIR}" \
-		--root ${IMAGE_ROOTFS} \
-		--target `echo ${TARGET_PREFIX} | sed 's/-$//' ` \
-		-d ${WORKDIR}/mklibs/dest \
-		`cat ${WORKDIR}/mklibs/executables.list`
-
-	cd ${WORKDIR}/mklibs/dest
-	for i in *
-	do
-		cp $i `find ${IMAGE_ROOTFS} -name $i`
-	done
-
-	cd ${IMAGE_ROOTFS}
-	du -bs > ${WORKDIR}/mklibs/du.after.mklibs.txt
-
-	echo rootfs size before mklibs optimization: `cat ${WORKDIR}/mklibs/du.before.mklibs.txt`
-	echo rootfs size after mklibs optimization: `cat ${WORKDIR}/mklibs/du.after.mklibs.txt`
-}
-
-mklibs_optimize_image() {
-	for img in ${MKLIBS_OPTIMIZED_IMAGES}
-	do
-		if [ "${img}" = "${PN}" ] || [ "${img}" = "all" ]
-		then
-			mklibs_optimize_image_doit
-			break
-		fi
-	done
-}
diff --git a/poky/meta/classes/image.bbclass b/poky/meta/classes/image.bbclass
index 353cc67..67603d9 100644
--- a/poky/meta/classes/image.bbclass
+++ b/poky/meta/classes/image.bbclass
@@ -38,7 +38,7 @@
 # Generate companion debugfs?
 IMAGE_GEN_DEBUGFS ?= "0"
 
-# These pacackages will be installed as additional into debug rootfs
+# These packages will be installed as additional into debug rootfs
 IMAGE_INSTALL_DEBUGFS ?= ""
 
 # These packages will be removed from a read-only rootfs after all other
diff --git a/poky/meta/classes/image_types.bbclass b/poky/meta/classes/image_types.bbclass
index 8028691..2a45d45 100644
--- a/poky/meta/classes/image_types.bbclass
+++ b/poky/meta/classes/image_types.bbclass
@@ -108,6 +108,11 @@
 IMAGE_CMD_squashfs-lzo = "mksquashfs ${IMAGE_ROOTFS} ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.squashfs-lzo ${EXTRA_IMAGECMD} -noappend -comp lzo"
 IMAGE_CMD_squashfs-lz4 = "mksquashfs ${IMAGE_ROOTFS} ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.squashfs-lz4 ${EXTRA_IMAGECMD} -noappend -comp lz4"
 
+IMAGE_CMD_erofs = "mkfs.erofs ${EXTRA_IMAGECMD} ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.erofs ${IMAGE_ROOTFS}"
+IMAGE_CMD_erofs-lz4 = "mkfs.erofs -zlz4 ${EXTRA_IMAGECMD} ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.erofs-lz4 ${IMAGE_ROOTFS}"
+IMAGE_CMD_erofs-lz4hc = "mkfs.erofs -zlz4hc ${EXTRA_IMAGECMD} ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.erofs-lz4hc ${IMAGE_ROOTFS}"
+
+
 IMAGE_CMD_TAR ?= "tar"
 # ignore return code 1 "file changed as we read it" as other tasks(e.g. do_image_wic) may be hardlinking rootfs
 IMAGE_CMD_tar = "${IMAGE_CMD_TAR} --sort=name --format=posix --numeric-owner -cf ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.tar -C ${IMAGE_ROOTFS} . || [ $? -eq 1 ]"
@@ -243,6 +248,9 @@
 do_image_ubifs[depends] += "mtd-utils-native:do_populate_sysroot"
 do_image_multiubi[depends] += "mtd-utils-native:do_populate_sysroot"
 do_image_f2fs[depends] += "f2fs-tools-native:do_populate_sysroot"
+do_image_erofs[depends] += "erofs-utils-native:do_populate_sysroot"
+do_image_erofs_lz4[depends] += "erofs-utils-native:do_populate_sysroot"
+do_image_erofs_lz4hc[depends] += "erofs-utils-native:do_populate_sysroot"
 
 # This variable is available to request which values are suitable for IMAGE_FSTYPES
 IMAGE_TYPES = " \
@@ -261,6 +269,7 @@
     wic wic.gz wic.bz2 wic.lzma wic.zst \
     container \
     f2fs \
+    erofs erofs-lz4 erofs-lz4hc \
 "
 
 # Compression is a special case of conversion. The old variable
diff --git a/poky/meta/classes/kernel-fitimage.bbclass b/poky/meta/classes/kernel-fitimage.bbclass
index 5cfd8af..e363eeb 100644
--- a/poky/meta/classes/kernel-fitimage.bbclass
+++ b/poky/meta/classes/kernel-fitimage.bbclass
@@ -217,13 +217,13 @@
 	bootscr_sign_keyname="${UBOOT_SIGN_KEYNAME}"
 
         cat << EOF >> ${1}
-                bootscr@${2} {
+                bootscr-${2} {
                         description = "U-boot script";
                         data = /incbin/("${3}");
                         type = "script";
                         arch = "${UBOOT_ARCH}";
                         compression = "none";
-                        hash@1 {
+                        hash-1 {
                                 algo = "${bootscr_csum}";
                         };
                 };
@@ -232,7 +232,7 @@
 	if [ "${UBOOT_SIGN_ENABLE}" = "1" -a "${FIT_SIGN_INDIVIDUAL}" = "1" -a -n "${bootscr_sign_keyname}" ] ; then
 		sed -i '$ d' ${1}
 		cat << EOF >> ${1}
-                        signature@1 {
+                        signature-1 {
                                 algo = "${bootscr_csum},${bootscr_sign_algo}";
                                 key-name-hint = "${bootscr_sign_keyname}";
                         };
@@ -331,7 +331,7 @@
 
 	conf_csum="${FIT_HASH_ALG}"
 	conf_sign_algo="${FIT_SIGN_ALG}"
-	if [ -n "${UBOOT_SIGN_ENABLE}" ] ; then
+	if [ "${UBOOT_SIGN_ENABLE}" = "1" ] ; then
 		conf_sign_keyname="${UBOOT_SIGN_KEYNAME}"
 	fi
 
@@ -383,7 +383,7 @@
 	if [ -n "${bootscr_id}" ]; then
 		conf_desc="${conf_desc}${sep}u-boot script"
 		sep=", "
-		bootscr_line="bootscr = \"bootscr@${bootscr_id}\";"
+		bootscr_line="bootscr = \"bootscr-${bootscr_id}\";"
 	fi
 
 	if [ -n "${config_id}" ]; then
@@ -667,7 +667,34 @@
 
 addtask assemble_fitimage_initramfs before do_deploy after do_bundle_initramfs
 
-addtask generate_rsa_keys before do_assemble_fitimage after do_compile
+do_kernel_generate_rsa_keys() {
+	if [ "${UBOOT_SIGN_ENABLE}" = "0" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
+		bbwarn "FIT_GENERATE_KEYS is set to 1 even though UBOOT_SIGN_ENABLE is set to 0. The keys will not be generated as they won't be used."
+	fi
+
+	if [ "${UBOOT_SIGN_ENABLE}" = "1" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
+
+		# Generate keys only if they don't already exist
+		if [ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key ] || \
+			[ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".crt ]; then
+
+			# make directory if it does not already exist
+			mkdir -p "${UBOOT_SIGN_KEYDIR}"
+
+			echo "Generating RSA private key for signing fitImage"
+			openssl genrsa ${FIT_KEY_GENRSA_ARGS} -out \
+				"${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key \
+			"${FIT_SIGN_NUMBITS}"
+
+			echo "Generating certificate for signing fitImage"
+			openssl req ${FIT_KEY_REQ_ARGS} "${FIT_KEY_SIGN_PKCS}" \
+				-key "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key \
+				-out "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".crt
+		fi
+	fi
+}
+
+addtask kernel_generate_rsa_keys before do_assemble_fitimage after do_compile
 
 kernel_do_deploy[vardepsexclude] = "DATETIME"
 kernel_do_deploy_append() {
@@ -718,13 +745,13 @@
 # - Removes do_assemble_fitimage. FIT generation is done through
 #   do_assemble_fitimage_initramfs. do_assemble_fitimage is not needed
 #   and should not be part of the tasks to be executed.
-# - Since do_generate_rsa_keys is inserted by default
+# - Since do_kernel_generate_rsa_keys is inserted by default
 #   between do_compile and do_assemble_fitimage, this is
-#   not suitable in case of initramfs bundles.  do_generate_rsa_keys
+#   not suitable in case of initramfs bundles.  do_kernel_generate_rsa_keys
 #   should be between do_bundle_initramfs and do_assemble_fitimage_initramfs.
 python () {
     if d.getVar('INITRAMFS_IMAGE_BUNDLE') == "1":
         bb.build.deltask('do_assemble_fitimage', d)
-        bb.build.deltask('generate_rsa_keys', d)
-        bb.build.addtask('generate_rsa_keys', 'do_assemble_fitimage_initramfs', 'do_bundle_initramfs', d)
+        bb.build.deltask('kernel_generate_rsa_keys', d)
+        bb.build.addtask('kernel_generate_rsa_keys', 'do_assemble_fitimage_initramfs', 'do_bundle_initramfs', d)
 }
diff --git a/poky/meta/classes/kernel-yocto.bbclass b/poky/meta/classes/kernel-yocto.bbclass
index 30f07de..ba139dd 100644
--- a/poky/meta/classes/kernel-yocto.bbclass
+++ b/poky/meta/classes/kernel-yocto.bbclass
@@ -113,6 +113,8 @@
 	cd ${S}
 	export KMETA=${KMETA}
 
+	bbnote "do_kernel_metadata: for summary/debug, set KCONF_AUDIT_LEVEL > 0"
+
 	# if kernel tools are available in-tree, they are preferred
 	# and are placed on the path before any external tools. Unless
 	# the external tools flag is set, in that case we do nothing.
@@ -290,6 +292,21 @@
 			fi
 		fi
 	fi
+
+	if [ ${KCONF_AUDIT_LEVEL} -gt 0 ]; then
+		bbnote "kernel meta data summary for ${KMACHINE} (${LINUX_KERNEL_TYPE}):"
+		bbnote "======================================================================"
+		if [ -n "${KMETA_EXTERNAL_BSPS}" ]; then
+			bbnote "Non kernel-cache (external) bsp"
+		fi
+		bbnote "BSP entry point / definition: $bsp_definition"
+		if [ -n "$in_tree_defconfig" ]; then
+			bbnote "KBUILD_DEFCONFIG: ${KBUILD_DEFCONFIG}"
+		fi
+		bbnote "Fragments from SRC_URI: $sccs_from_src_uri"
+		bbnote "KERNEL_FEATURES: $KERNEL_FEATURES_FINAL"
+		bbnote "Final scc/cfg list: $sccs_defconfig $bsp_definition $sccs $KERNEL_FEATURES_FINAL"
+	fi
 }
 
 do_patch() {
diff --git a/poky/meta/classes/meson-routines.bbclass b/poky/meta/classes/meson-routines.bbclass
new file mode 100644
index 0000000..be3aeed
--- /dev/null
+++ b/poky/meta/classes/meson-routines.bbclass
@@ -0,0 +1,51 @@
+inherit siteinfo
+
+def meson_array(var, d):
+    items = d.getVar(var).split()
+    return repr(items[0] if len(items) == 1 else items)
+
+# Map our ARCH values to what Meson expects:
+# http://mesonbuild.com/Reference-tables.html#cpu-families
+def meson_cpu_family(var, d):
+    import re
+    arch = d.getVar(var)
+    if arch == 'powerpc':
+        return 'ppc'
+    elif arch == 'powerpc64' or arch == 'powerpc64le':
+        return 'ppc64'
+    elif arch == 'armeb':
+        return 'arm'
+    elif arch == 'aarch64_be':
+        return 'aarch64'
+    elif arch == 'mipsel':
+        return 'mips'
+    elif arch == 'mips64el':
+        return 'mips64'
+    elif re.match(r"i[3-6]86", arch):
+        return "x86"
+    elif arch == "microblazeel":
+        return "microblaze"
+    else:
+        return arch
+
+# Map our OS values to what Meson expects:
+# https://mesonbuild.com/Reference-tables.html#operating-system-names
+def meson_operating_system(var, d):
+    os = d.getVar(var)
+    if "mingw" in os:
+        return "windows"
+    # avoid e.g 'linux-gnueabi'
+    elif "linux" in os:
+        return "linux"
+    else:
+        return os
+
+def meson_endian(prefix, d):
+    arch, os = d.getVar(prefix + "_ARCH"), d.getVar(prefix + "_OS")
+    sitedata = siteinfo_data_for_machine(arch, os, d)
+    if "endian-little" in sitedata:
+        return "little"
+    elif "endian-big" in sitedata:
+        return "big"
+    else:
+        bb.fatal("Cannot determine endianism for %s-%s" % (arch, os))
diff --git a/poky/meta/classes/meson.bbclass b/poky/meta/classes/meson.bbclass
index bf9b02e..8ae0285 100644
--- a/poky/meta/classes/meson.bbclass
+++ b/poky/meta/classes/meson.bbclass
@@ -1,4 +1,4 @@
-inherit siteinfo python3native
+inherit python3native meson-routines
 
 DEPENDS_append = " meson-native ninja-native"
 
@@ -35,56 +35,6 @@
 MESON_CROSS_FILE_class-target = "--cross-file ${WORKDIR}/meson.cross"
 MESON_CROSS_FILE_class-nativesdk = "--cross-file ${WORKDIR}/meson.cross"
 
-def meson_array(var, d):
-    items = d.getVar(var).split()
-    return repr(items[0] if len(items) == 1 else items)
-
-# Map our ARCH values to what Meson expects:
-# http://mesonbuild.com/Reference-tables.html#cpu-families
-def meson_cpu_family(var, d):
-    import re
-    arch = d.getVar(var)
-    if arch == 'powerpc':
-        return 'ppc'
-    elif arch == 'powerpc64' or arch == 'powerpc64le':
-        return 'ppc64'
-    elif arch == 'armeb':
-        return 'arm'
-    elif arch == 'aarch64_be':
-        return 'aarch64'
-    elif arch == 'mipsel':
-        return 'mips'
-    elif arch == 'mips64el':
-        return 'mips64'
-    elif re.match(r"i[3-6]86", arch):
-        return "x86"
-    elif arch == "microblazeel":
-        return "microblaze"
-    else:
-        return arch
-
-# Map our OS values to what Meson expects:
-# https://mesonbuild.com/Reference-tables.html#operating-system-names
-def meson_operating_system(var, d):
-    os = d.getVar(var)
-    if "mingw" in os:
-        return "windows"
-    # avoid e.g 'linux-gnueabi'
-    elif "linux" in os:
-        return "linux"
-    else:
-        return os
-
-def meson_endian(prefix, d):
-    arch, os = d.getVar(prefix + "_ARCH"), d.getVar(prefix + "_OS")
-    sitedata = siteinfo_data_for_machine(arch, os, d)
-    if "endian-little" in sitedata:
-        return "little"
-    elif "endian-big" in sitedata:
-        return "big"
-    else:
-        bb.fatal("Cannot determine endianism for %s-%s" % (arch, os))
-
 addtask write_config before do_configure
 do_write_config[vardeps] += "CC CXX LD AR NM STRIP READELF CFLAGS CXXFLAGS LDFLAGS"
 do_write_config() {
diff --git a/poky/meta/classes/native.bbclass b/poky/meta/classes/native.bbclass
index a0838e4..561cc23 100644
--- a/poky/meta/classes/native.bbclass
+++ b/poky/meta/classes/native.bbclass
@@ -119,6 +119,7 @@
     pn = e.data.getVar("PN")
     if not pn.endswith("-native"):
         return
+    bpn = e.data.getVar("BPN")
 
     # Set features here to prevent appends and distro features backfill
     # from modifying native distro features
@@ -146,7 +147,10 @@
             elif "-cross-" in dep:
                 newdeps.append(dep.replace("-cross", "-native"))
             elif not dep.endswith("-native"):
-                newdeps.append(dep.replace("-native", "") + "-native")
+                # Replace ${PN} with ${BPN} in the dependency to make sure
+                # dependencies on, e.g., ${PN}-foo become ${BPN}-foo-native
+                # rather than ${BPN}-native-foo-native.
+                newdeps.append(dep.replace(pn, bpn) + "-native")
             else:
                 newdeps.append(dep)
         d.setVar(varname, " ".join(newdeps), parsing=True)
@@ -166,7 +170,7 @@
         if prov.find(pn) != -1:
             nprovides.append(prov)
         elif not prov.endswith("-native"):
-            nprovides.append(prov.replace(prov, prov + "-native"))
+            nprovides.append(prov + "-native")
         else:
             nprovides.append(prov)
     e.data.setVar("PROVIDES", ' '.join(nprovides))
diff --git a/poky/meta/classes/npm.bbclass b/poky/meta/classes/npm.bbclass
index 55a6985..8f8712a 100644
--- a/poky/meta/classes/npm.bbclass
+++ b/poky/meta/classes/npm.bbclass
@@ -247,8 +247,10 @@
         # Add node-gyp configuration
         configs.append(("arch", d.getVar("NPM_ARCH")))
         configs.append(("release", "true"))
-        sysroot = d.getVar("RECIPE_SYSROOT_NATIVE")
-        nodedir = os.path.join(sysroot, d.getVar("prefix_native").strip("/"))
+        nodedir = d.getVar("NPM_NODEDIR")
+        if not nodedir:
+            sysroot = d.getVar("RECIPE_SYSROOT_NATIVE")
+            nodedir = os.path.join(sysroot, d.getVar("prefix_native").strip("/"))
         configs.append(("nodedir", nodedir))
         configs.append(("python", d.getVar("PYTHON")))
 
diff --git a/poky/meta/classes/package_rpm.bbclass b/poky/meta/classes/package_rpm.bbclass
index 84a9a6d..86706da 100644
--- a/poky/meta/classes/package_rpm.bbclass
+++ b/poky/meta/classes/package_rpm.bbclass
@@ -684,8 +684,8 @@
     cmd = cmd + " --define '_use_internal_dependency_generator 0'"
     cmd = cmd + " --define '_binaries_in_noarch_packages_terminate_build 0'"
     cmd = cmd + " --define '_build_id_links none'"
-    cmd = cmd + " --define '_binary_payload w6T.xzdio'"
-    cmd = cmd + " --define '_source_payload w6T.xzdio'"
+    cmd = cmd + " --define '_binary_payload w6T%d.xzdio'" % int(d.getVar("XZ_THREADS"))
+    cmd = cmd + " --define '_source_payload w6T%d.xzdio'" % int(d.getVar("XZ_THREADS"))
     cmd = cmd + " --define 'clamp_mtime_to_source_date_epoch 1'"
     cmd = cmd + " --define 'use_source_date_epoch_as_buildtime 1'"
     cmd = cmd + " --define '_buildhost reproducible'"
diff --git a/poky/meta/classes/ptest.bbclass b/poky/meta/classes/ptest.bbclass
index 47611ed..4669162 100644
--- a/poky/meta/classes/ptest.bbclass
+++ b/poky/meta/classes/ptest.bbclass
@@ -20,6 +20,8 @@
 
 PACKAGES =+ "${@bb.utils.contains('PTEST_ENABLED', '1', '${PN}-ptest', '', d)}"
 
+require conf/distro/include/ptest-packagelists.inc
+
 do_configure_ptest() {
     :
 }
@@ -116,4 +118,13 @@
     if not(d.getVar('PTEST_ENABLED') == "1"):
         for i in ['do_configure_ptest_base', 'do_compile_ptest_base', 'do_install_ptest_base']:
             bb.build.deltask(i, d)
+
+    # This checks that ptest package is actually included
+    # in standard oe-core ptest images - only for oe-core recipes
+    if not 'meta/recipes' in d.getVar('FILE') or not(d.getVar('PTEST_ENABLED') == "1"):
+        return
+
+    enabled_ptests = " ".join([d.getVar('PTESTS_FAST'),d.getVar('PTESTS_SLOW'), d.getVar('PTESTS_PROBLEMS')]).split()
+    if (d.getVar('PN') + "-ptest").replace(d.getVar('MLPREFIX'), '') not in enabled_ptests:
+         bb.error("Recipe %s supports ptests but is not included in oe-core's conf/distro/include/ptest-packagelists.inc" % d.getVar("PN"))
 }
diff --git a/poky/meta/classes/qemuboot.bbclass b/poky/meta/classes/qemuboot.bbclass
index 1f8012e..2b50dda 100644
--- a/poky/meta/classes/qemuboot.bbclass
+++ b/poky/meta/classes/qemuboot.bbclass
@@ -19,6 +19,9 @@
 # QB_CPU_KVM: the similar to QB_CPU, but used when kvm, e.g., '-cpu kvm64',
 #             set it when support kvm.
 #
+# QB_SMP: amount of CPU cores inside qemu guest, each mapped to a thread on the host,
+#             e.g. "-smp 8".
+#
 # QB_KERNEL_CMDLINE_APPEND: options to append to kernel's -append
 #                           option, e.g., "console=ttyS0 console=tty"
 #
@@ -80,6 +83,7 @@
 # See "runqemu help" for more info
 
 QB_MEM ?= "-m 256"
+QB_SMP ?= ""
 QB_SERIAL_OPT ?= "-serial mon:stdio -serial null"
 QB_DEFAULT_KERNEL ?= "${KERNEL_IMAGETYPE}"
 QB_DEFAULT_FSTYPE ?= "ext4"
diff --git a/poky/meta/classes/sstate.bbclass b/poky/meta/classes/sstate.bbclass
index b1c608d..3a3f7cc 100644
--- a/poky/meta/classes/sstate.bbclass
+++ b/poky/meta/classes/sstate.bbclass
@@ -319,6 +319,8 @@
     if os.path.exists(i):
         with open(i, "r") as f:
             manifests = f.readlines()
+    # We append new entries, we don't remove older entries which may have the same
+    # manifest name but different versions from stamp/workdir. See below.
     if filedata not in manifests:
         with open(i, "a+") as f:
             f.write(filedata)
@@ -704,6 +706,8 @@
 
     return
 
+sstate_package[vardepsexclude] += "SSTATE_SIG_KEY"
+
 def pstaging_fetch(sstatefetch, d):
     import bb.fetch2
 
@@ -1183,11 +1187,21 @@
         i = d.expand("${SSTATE_MANIFESTS}/index-" + a)
         if not os.path.exists(i):
             continue
+        manseen = set()
+        ignore = []
         with open(i, "r") as f:
             lines = f.readlines()
-            for l in lines:
+            for l in reversed(lines):
                 try:
                     (stamp, manifest, workdir) = l.split()
+                    # The index may have multiple entries for the same manifest as the code above only appends
+                    # new entries and there may be an entry with matching manifest but differing version in stamp/workdir.
+                    # The last entry in the list is the valid one, any earlier entries with matching manifests
+                    # should be ignored.
+                    if manifest in manseen:
+                        ignore.append(l)
+                        continue
+                    manseen.add(manifest)
                     if stamp not in stamps and stamp not in preservestamps and stamp in machineindex:
                         toremove.append(l)
                         if stamp not in seen:
@@ -1218,6 +1232,8 @@
 
         with open(i, "w") as f:
             for l in lines:
+                if l in ignore:
+                    continue
                 f.write(l)
     machineindex |= set(stamps)
     with open(mi, "w") as f:
diff --git a/poky/meta/classes/uboot-sign.bbclass b/poky/meta/classes/uboot-sign.bbclass
index d11882f..29b2edc 100644
--- a/poky/meta/classes/uboot-sign.bbclass
+++ b/poky/meta/classes/uboot-sign.bbclass
@@ -255,32 +255,7 @@
 	fi
 }
 
-do_generate_rsa_keys() {
-	if [ "${UBOOT_SIGN_ENABLE}" = "0" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
-		bbwarn "FIT_GENERATE_KEYS is set to 1 even though UBOOT_SIGN_ENABLE is set to 0. The keys will not be generated as they won't be used."
-	fi
-
-	if [ "${UBOOT_SIGN_ENABLE}" = "1" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
-
-		# Generate keys only if they don't already exist
-		if [ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key ] || \
-			[ ! -f "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".crt ]; then
-
-			# make directory if it does not already exist
-			mkdir -p "${UBOOT_SIGN_KEYDIR}"
-
-			echo "Generating RSA private key for signing fitImage"
-			openssl genrsa ${FIT_KEY_GENRSA_ARGS} -out \
-				"${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key \
-				"${FIT_SIGN_NUMBITS}"
-
-			echo "Generating certificate for signing fitImage"
-			openssl req ${FIT_KEY_REQ_ARGS} "${FIT_KEY_SIGN_PKCS}" \
-				-key "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".key \
-				-out "${UBOOT_SIGN_KEYDIR}/${UBOOT_SIGN_KEYNAME}".crt
-		fi
-	fi
-
+do_uboot_generate_rsa_keys() {
 	if [ "${SPL_SIGN_ENABLE}" = "0" ] && [ "${UBOOT_FIT_GENERATE_KEYS}" = "1" ]; then
 		bbwarn "UBOOT_FIT_GENERATE_KEYS is set to 1 eventhough SPL_SIGN_ENABLE is set to 0. The keys will not be generated as they won't be used."
 	fi
@@ -308,7 +283,7 @@
 
 }
 
-addtask generate_rsa_keys before do_uboot_assemble_fitimage after do_compile
+addtask uboot_generate_rsa_keys before do_uboot_assemble_fitimage after do_compile
 
 # Create a ITS file for the U-boot FIT, for use when
 # we want to sign it so that the SPL can verify it