diff --git a/poky/meta/classes/sanity.bbclass b/poky/meta/classes/sanity.bbclass
index 3262d08..485173a 100644
--- a/poky/meta/classes/sanity.bbclass
+++ b/poky/meta/classes/sanity.bbclass
@@ -703,6 +703,23 @@
     if (tmpdirmode & stat.S_ISUID):
         status.addresult("TMPDIR is setuid, please don't build in a setuid directory")
 
+    # Check that a user isn't building in a path in PSEUDO_IGNORE_PATHS
+    pseudoignorepaths = d.getVar('PSEUDO_IGNORE_PATHS', expand=True).split(",")
+    workdir = d.getVar('WORKDIR', expand=True)
+    for i in pseudoignorepaths:
+        if i and workdir.startswith(i):
+            status.addresult("You are building in a path included in PSEUDO_IGNORE_PATHS " + str(i) + " please locate the build outside this path.\n")
+
+    # Check if PSEUDO_IGNORE_PATHS and and paths under pseudo control overlap
+    pseudoignorepaths = d.getVar('PSEUDO_IGNORE_PATHS', expand=True).split(",")
+    pseudo_control_dir = "${D},${PKGD},${PKGDEST},${IMAGEROOTFS},${SDK_OUTPUT}"
+    pseudocontroldir = d.expand(pseudo_control_dir).split(",")
+    for i in pseudoignorepaths:
+        for j in pseudocontroldir:
+            if i and j:
+                if j.startswith(i):
+                    status.addresult("A path included in PSEUDO_IGNORE_PATHS " + str(i) + " and the path " + str(j) + " overlap and this will break pseudo permission and ownership tracking. Please set the path " + str(j) + " to a different directory which does not overlap with pseudo controlled directories. \n")
+
     # Some third-party software apparently relies on chmod etc. being suid root (!!)
     import stat
     suid_check_bins = "chown chmod mknod".split()
@@ -770,10 +787,10 @@
     if 0 == os.getuid():
         raise_sanity_error("Do not use Bitbake as root.", d)
 
-    # Check the Python version, we now have a minimum of Python 3.4
+    # Check the Python version, we now have a minimum of Python 3.6
     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 < 0x030600F0:
+        status.addresult('The system requires at least Python 3.6 to run. Please update your Python interpreter.\n')
 
     # Check the bitbake version meets minimum requirements
     from distutils.version import LooseVersion
@@ -787,6 +804,11 @@
     if "." in paths or "./" in paths or "" in paths:
         status.addresult("PATH contains '.', './' or '' (empty element), which will break the build, please remove this.\nParsed PATH is " + str(paths) + "\n")
 
+    #Check if bitbake is present in PATH environment variable
+    bb_check = bb.utils.which(d.getVar('PATH'), 'bitbake')
+    if not bb_check:
+        bb.warn("bitbake binary is not found in PATH, did you source the script?")
+
     # Check whether 'inherit' directive is found (used for a class to inherit)
     # in conf file it's supposed to be uppercase INHERIT
     inherit = d.getVar('inherit')