diff --git a/poky/meta/classes/archiver.bbclass b/poky/meta/classes/archiver.bbclass
index 598298e..aff1f9d 100644
--- a/poky/meta/classes/archiver.bbclass
+++ b/poky/meta/classes/archiver.bbclass
@@ -53,7 +53,7 @@
 ARCHIVER_MODE[mirror] ?= "split"
 
 DEPLOY_DIR_SRC ?= "${DEPLOY_DIR}/sources"
-ARCHIVER_TOPDIR ?= "${WORKDIR}/archiver-sources"
+ARCHIVER_TOPDIR ?= "${WORKDIR}/deploy-sources"
 ARCHIVER_OUTDIR = "${ARCHIVER_TOPDIR}/${TARGET_SYS}/${PF}/"
 ARCHIVER_RPMTOPDIR ?= "${WORKDIR}/deploy-sources-rpm"
 ARCHIVER_RPMOUTDIR = "${ARCHIVER_RPMTOPDIR}/${TARGET_SYS}/${PF}/"
diff --git a/poky/meta/classes/base.bbclass b/poky/meta/classes/base.bbclass
index 5a0b0c6..4c681cc 100644
--- a/poky/meta/classes/base.bbclass
+++ b/poky/meta/classes/base.bbclass
@@ -388,16 +388,6 @@
     oe.utils.features_backfill("DISTRO_FEATURES", d)
     oe.utils.features_backfill("MACHINE_FEATURES", d)
 
-    if d.getVar("S")[-1] == '/':
-        bb.warn("Recipe %s sets S variable with trailing slash '%s', remove it" % (d.getVar("PN"), d.getVar("S")))
-    if d.getVar("B")[-1] == '/':
-        bb.warn("Recipe %s sets B variable with trailing slash '%s', remove it" % (d.getVar("PN"), d.getVar("B")))
-
-    if os.path.normpath(d.getVar("WORKDIR")) != os.path.normpath(d.getVar("S")):
-        d.appendVar("PSEUDO_IGNORE_PATHS", ",${S}")
-    if os.path.normpath(d.getVar("WORKDIR")) != os.path.normpath(d.getVar("B")):
-        d.appendVar("PSEUDO_IGNORE_PATHS", ",${B}")
-
     # Handle PACKAGECONFIG
     #
     # These take the form:
diff --git a/poky/meta/classes/devtool-source.bbclass b/poky/meta/classes/devtool-source.bbclass
index 41900e6..280d600 100644
--- a/poky/meta/classes/devtool-source.bbclass
+++ b/poky/meta/classes/devtool-source.bbclass
@@ -199,7 +199,6 @@
             # Run do_patch function with the override applied
             localdata = bb.data.createCopy(d)
             localdata.setVar('OVERRIDES', ':'.join(no_overrides))
-            localdata.setVar('FILESOVERRIDES', ':'.join(no_overrides))
             bb.build.exec_func('do_patch', localdata)
             rm_patches()
             # Now we need to reconcile the dev branch with the no-overrides one
@@ -217,8 +216,7 @@
                 # Reset back to the initial commit on a new branch
                 bb.process.run('git checkout %s -b devtool-override-%s' % (initial_rev, override), cwd=srcsubdir)
                 # Run do_patch function with the override applied
-                localdata.setVar('OVERRIDES', ':'.join(no_overrides + [override]))
-                localdata.setVar('FILESOVERRIDES', ':'.join(no_overrides + [override]))
+                localdata.appendVar('OVERRIDES', ':%s' % override)
                 bb.build.exec_func('do_patch', localdata)
                 rm_patches()
                 # Now we need to reconcile the new branch with the no-overrides one
diff --git a/poky/meta/classes/image.bbclass b/poky/meta/classes/image.bbclass
index 045f449..730c843 100644
--- a/poky/meta/classes/image.bbclass
+++ b/poky/meta/classes/image.bbclass
@@ -121,7 +121,7 @@
 def rootfs_variables(d):
     from oe.rootfs import variable_depends
     variables = ['IMAGE_DEVICE_TABLE','IMAGE_DEVICE_TABLES','BUILD_IMAGES_FROM_FEEDS','IMAGE_TYPES_MASKED','IMAGE_ROOTFS_ALIGNMENT','IMAGE_OVERHEAD_FACTOR','IMAGE_ROOTFS_SIZE','IMAGE_ROOTFS_EXTRA_SPACE',
-                 'IMAGE_ROOTFS_MAXSIZE','IMAGE_NAME','IMAGE_LINK_NAME','IMAGE_MANIFEST','DEPLOY_DIR_IMAGE','IMAGE_FSTYPES','IMAGE_INSTALL_COMPLEMENTARY','IMAGE_LINGUAS', 'IMAGE_LINGUAS_COMPLEMENTARY', 'IMAGE_LOCALES_ARCHIVE',
+                 'IMAGE_ROOTFS_MAXSIZE','IMAGE_NAME','IMAGE_LINK_NAME','IMAGE_MANIFEST','DEPLOY_DIR_IMAGE','IMAGE_FSTYPES','IMAGE_INSTALL_COMPLEMENTARY','IMAGE_LINGUAS', 'IMAGE_LINGUAS_COMPLEMENTARY',
                  'MULTILIBRE_ALLOW_REP','MULTILIB_TEMP_ROOTFS','MULTILIB_VARIANTS','MULTILIBS','ALL_MULTILIB_PACKAGE_ARCHS','MULTILIB_GLOBAL_VARIANTS','BAD_RECOMMENDATIONS','NO_RECOMMENDATIONS',
                  'PACKAGE_ARCHS','PACKAGE_CLASSES','TARGET_VENDOR','TARGET_ARCH','TARGET_OS','OVERRIDES','BBEXTENDVARIANT','FEED_DEPLOYDIR_BASE_URI','INTERCEPT_DIR','USE_DEVFS',
                  'CONVERSIONTYPES', 'IMAGE_GEN_DEBUGFS', 'ROOTFS_RO_UNNEEDED', 'IMGDEPLOYDIR', 'PACKAGE_EXCLUDE_COMPLEMENTARY', 'REPRODUCIBLE_TIMESTAMP_ROOTFS', 'IMAGE_INSTALL_DEBUGFS']
@@ -173,9 +173,6 @@
 
 LINGUAS_INSTALL ?= "${@" ".join(map(lambda s: "locale-base-%s" % s, d.getVar('IMAGE_LINGUAS').split()))}"
 
-# per default create a locale archive
-IMAGE_LOCALES_ARCHIVE ?= '1'
-
 # Prefer image, but use the fallback files for lookups if the image ones
 # aren't yet available.
 PSEUDO_PASSWD = "${IMAGE_ROOTFS}:${STAGING_DIR_NATIVE}"
diff --git a/poky/meta/classes/image_types_wic.bbclass b/poky/meta/classes/image_types_wic.bbclass
index 286e0f5..4f888ef 100644
--- a/poky/meta/classes/image_types_wic.bbclass
+++ b/poky/meta/classes/image_types_wic.bbclass
@@ -5,7 +5,7 @@
            IMAGE_LINK_NAME IMAGE_ROOTFS INITRAMFS_FSTYPES INITRD INITRD_LIVE ISODIR RECIPE_SYSROOT_NATIVE \
            ROOTFS_SIZE STAGING_DATADIR STAGING_DIR STAGING_LIBDIR TARGET_SYS \
            KERNEL_IMAGETYPE MACHINE INITRAMFS_IMAGE INITRAMFS_IMAGE_BUNDLE INITRAMFS_LINK_NAME APPEND \
-           ASSUME_PROVIDED PSEUDO_IGNORE_PATHS"
+           ASSUME_PROVIDED"
 
 inherit ${@bb.utils.contains('INITRAMFS_IMAGE_BUNDLE', '1', 'kernel-artifact-names', '', d)}
 
@@ -39,8 +39,6 @@
 IMAGE_CMD_wic[vardepsexclude] = "WKS_FULL_PATH WKS_FILES TOPDIR"
 do_image_wic[cleandirs] = "${WORKDIR}/build-wic"
 
-PSEUDO_IGNORE_PATHS .= ",${WORKDIR}/build-wic"
-
 # Rebuild when the wks file or vars in WICVARS change
 USING_WIC = "${@bb.utils.contains_any('IMAGE_FSTYPES', 'wic ' + ' '.join('wic.%s' % c for c in '${CONVERSIONTYPES}'.split()), '1', '', d)}"
 WKS_FILE_CHECKSUM = "${@'${WKS_FULL_PATH}:%s' % os.path.exists('${WKS_FULL_PATH}') if '${USING_WIC}' else ''}"
diff --git a/poky/meta/classes/kernel-fitimage.bbclass b/poky/meta/classes/kernel-fitimage.bbclass
index bb2f3c4..fa4ea6f 100644
--- a/poky/meta/classes/kernel-fitimage.bbclass
+++ b/poky/meta/classes/kernel-fitimage.bbclass
@@ -56,22 +56,6 @@
 # fitImage Signature Algo
 FIT_SIGN_ALG ?= "rsa2048"
 
-# Generate keys for signing fitImage
-FIT_GENERATE_KEYS ?= "0"
-
-# Size of private key in number of bits
-FIT_SIGN_NUMBITS ?= "2048"
-
-# args to openssl genrsa (Default is just the public exponent)
-FIT_KEY_GENRSA_ARGS ?= "-F4"
-
-# args to openssl req (Default is -batch for non interactive mode and
-# -new for new certificate)
-FIT_KEY_REQ_ARGS ?= "-batch -new"
-
-# Standard format for public key certificate
-FIT_KEY_SIGN_PKCS ?= "-x509"
-
 #
 # Emit the fitImage ITS header
 #
@@ -538,34 +522,6 @@
 
 addtask assemble_fitimage_initramfs before do_deploy after do_bundle_initramfs
 
-do_generate_rsa_keys() {
-	if [ "${UBOOT_SIGN_ENABLE}" = "0" ] && [ "${FIT_GENERATE_KEYS}" = "1" ]; then
-		bbwarn "FIT_GENERATE_KEYS is set to 1 eventhough 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 generate_rsa_keys before do_assemble_fitimage after do_compile
 
 kernel_do_deploy[vardepsexclude] = "DATETIME"
 kernel_do_deploy_append() {
diff --git a/poky/meta/classes/populate_sdk_base.bbclass b/poky/meta/classes/populate_sdk_base.bbclass
index 61b31d5..990505e 100644
--- a/poky/meta/classes/populate_sdk_base.bbclass
+++ b/poky/meta/classes/populate_sdk_base.bbclass
@@ -178,8 +178,6 @@
 do_populate_sdk[sstate-outputdirs] = "${SDK_DEPLOY}"
 do_populate_sdk[stamp-extra-info] = "${MACHINE_ARCH}${SDKMACHINE}"
 
-PSEUDO_IGNORE_PATHS .= ",${SDKDEPLOYDIR}"
-
 fakeroot create_sdk_files() {
 	cp ${COREBASE}/scripts/relocate_sdk.py ${SDK_OUTPUT}/${SDKPATH}/
 
diff --git a/poky/meta/classes/sanity.bbclass b/poky/meta/classes/sanity.bbclass
index 3262d08..e021b9d 100644
--- a/poky/meta/classes/sanity.bbclass
+++ b/poky/meta/classes/sanity.bbclass
@@ -619,9 +619,6 @@
                 f.write(current_abi)
         elif int(abi) <= 11 and current_abi == "12":
             status.addresult("The layout of TMPDIR changed for Recipe Specific Sysroots.\nConversion doesn't make sense and this change will rebuild everything so please delete TMPDIR (%s).\n" % d.getVar("TMPDIR"))
-        elif int(abi) <= 13 and current_abi == "14":
-            status.addresult("TMPDIR changed to include path filtering from the pseudo database.\nIt is recommended to use a clean TMPDIR with the new pseudo path filtering so TMPDIR (%s) would need to be removed to continue.\n" % d.getVar("TMPDIR"))
-
         elif (abi != current_abi):
             # Code to convert from one ABI to another could go here if possible.
             status.addresult("Error, TMPDIR has changed its layout version number (%s to %s) and you need to either rebuild, revert or adjust it at your own risk.\n" % (abi, current_abi))
@@ -772,8 +769,8 @@
 
     # Check the Python version, we now have a minimum of Python 3.4
     import sys
-    if sys.hexversion < 0x030500F0:
-        status.addresult('The system requires at least Python 3.5 to run. Please update your Python interpreter.\n')
+    if sys.hexversion < 0x03040000:
+        status.addresult('The system requires at least Python 3.4 to run. Please update your Python interpreter.\n')
 
     # Check the bitbake version meets minimum requirements
     from distutils.version import LooseVersion
diff --git a/poky/meta/classes/uninative.bbclass b/poky/meta/classes/uninative.bbclass
index 1e19917..316c0f0 100644
--- a/poky/meta/classes/uninative.bbclass
+++ b/poky/meta/classes/uninative.bbclass
@@ -89,7 +89,7 @@
         # ldd output is "ldd (Ubuntu GLIBC 2.23-0ubuntu10) 2.23", extract last option from first line
         glibcver = subprocess.check_output(["ldd", "--version"]).decode('utf-8').split('\n')[0].split()[-1]
         if bb.utils.vercmp_string(d.getVar("UNINATIVE_MAXGLIBCVERSION"), glibcver) < 0:
-            raise RuntimeError("Your host glibc version (%s) is newer than that in uninative (%s). Disabling uninative so that sstate is not corrupted." % (glibcver, d.getVar("UNINATIVE_MAXGLIBCVERSION")))
+            raise RuntimeError("Your host glibc verson (%s) is newer than that in uninative (%s). Disabling uninative so that sstate is not corrupted." % (glibcver, d.getVar("UNINATIVE_MAXGLIBCVERSION")))
 
         cmd = d.expand("\
 mkdir -p ${UNINATIVE_STAGING_DIR}-uninative; \
diff --git a/poky/meta/classes/waf.bbclass b/poky/meta/classes/waf.bbclass
index 309f625..9002440 100644
--- a/poky/meta/classes/waf.bbclass
+++ b/poky/meta/classes/waf.bbclass
@@ -5,11 +5,6 @@
 
 EXTRA_OECONF_append = " ${PACKAGECONFIG_CONFARGS}"
 
-EXTRA_OEWAF_BUILD ??= ""
-# In most cases, you want to pass the same arguments to `waf build` and `waf
-# install`, but you can override it if necessary
-EXTRA_OEWAF_INSTALL ??= "${EXTRA_OEWAF_BUILD}"
-
 def waflock_hash(d):
     # Calculates the hash used for the waf lock file. This should include
     # all of the user controllable inputs passed to waf configure. Note
@@ -60,11 +55,11 @@
 
 do_compile[progress] = "outof:^\[\s*(\d+)/\s*(\d+)\]\s+"
 waf_do_compile()  {
-	(cd ${S} && ./waf build ${@oe.utils.parallel_make_argument(d, '-j%d', limit=64)} ${EXTRA_OEWAF_BUILD})
+	(cd ${S} && ./waf build ${@oe.utils.parallel_make_argument(d, '-j%d', limit=64)})
 }
 
 waf_do_install() {
-	(cd ${S} && ./waf install --destdir=${D} ${EXTRA_OEWAF_INSTALL})
+	(cd ${S} && ./waf install --destdir=${D})
 }
 
 EXPORT_FUNCTIONS do_configure do_compile do_install