diff --git a/PySimpleGUI.py b/PySimpleGUI.py
index 46228a0c4..65343662b 100644
--- a/PySimpleGUI.py
+++ b/PySimpleGUI.py
@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-version = __version__ = "4.53.0.15 Unreleased"
+version = __version__ = "4.53.0.19 Unreleased"
 
 _change_log = """
     Changelog since 4.53.0 released to PyPI on 24-Oct-2021
@@ -55,6 +55,15 @@
             HUGE thank you to Jason for helping with this!  
     4.53.0.15
         More work on the right click menus for tabgroups. Need to always set one so that callback occurs
+    4.53.0.16
+        Fixed crash in the github upgrade thread that was due to Exec API changing to combine stdout and stderr by default
+    4.53.0.17
+        Changed the psgmain and psgupgrade code to relaunch using the version of Python used to call those functions
+            It was using the settings file to get the Python version and should instead use whatever was used to invoke PySimpleGUI
+    4.53.0.18
+        Changed the _copy_files_from_github code to always use the currently running python interpreter to do the pip install!
+    4.53.0.19
+        Removed the print in the relauch of psgmain.... struggling a bit with the whole psgmain upgrading itself....
     """
 
 __version__ = version.split()[0]  # For PEP 396 and PEP 345
@@ -22155,15 +22164,17 @@ def _the_github_upgrade_thread(window, sp):
     """
 
     window.write_event_value('-THREAD-', (sp, '===THEAD STARTING==='))
-    window.write_event_value('-THREAD-', (sp, '----- STDOUT Follows ----'))
+    window.write_event_value('-THREAD-', (sp, '----- STDOUT & STDERR Follows ----'))
     for line in sp.stdout:
         oline = line.decode().rstrip()
         window.write_event_value('-THREAD-', (sp, oline))
-    window.write_event_value('-THREAD-', (sp, '----- STDERR ----'))
 
-    for line in sp.stderr:
-        oline = line.decode().rstrip()
-        window.write_event_value('-THREAD-', (sp, oline))
+    # DO NOT CHECK STDERR because it won't exist anymore. The subprocess code now combines stdout and stderr
+    # window.write_event_value('-THREAD-', (sp, '----- STDERR ----'))
+
+    # for line in sp.stderr:
+    #     oline = line.decode().rstrip()
+    #     window.write_event_value('-THREAD-', (sp, oline))
     window.write_event_value('-THREAD-', (sp, '===THEAD DONE==='))
 
 
@@ -22238,7 +22249,8 @@ def _copy_files_from_github():
     # install the pysimplegui package from local dist
     # https://pip.pypa.io/en/stable/user_guide/?highlight=subprocess#using-pip-from-your-program
     # subprocess.check_call([sys.executable, '-m', 'pip', 'install', path])
-    python_command = execute_py_get_interpreter()
+    # python_command = execute_py_get_interpreter()
+    python_command = sys.executable         # always use the currently running interpreter to perform the pip!
 
     layout = [[Text('Pip Upgrade Progress')],
               [Multiline(s=(90,30), k='-MLINE-', reroute_cprint=True, write_only=True)],
@@ -22248,8 +22260,8 @@ def _copy_files_from_github():
 
     cprint('The value of sys.executable = ', sys.executable, c='white on red')
 
-    if not python_command:
-        python_command = sys.executable
+    # if not python_command:
+    #     python_command = sys.executable
 
     cprint('Installing with the Python interpreter =', python_command, c='white on purple')
 
@@ -22314,11 +22326,14 @@ def _upgrade_entry_point():
     It simply runs the PySimpleGUI.py file with a command line argument "upgrade" which will
         actually do the upgrade.
     """
-    execute_py_file(__file__, 'upgrade')
+    execute_py_file(__file__, 'upgrade', interpreter_command=sys.executable)
+
+
 
 def _main_entry_point():
-    print('Restarting main as a new process...(needed in case you want to GitHub Upgrade)')
-    execute_py_file(__file__)
+    # print('Restarting main as a new process...(needed in case you want to GitHub Upgrade)')
+    # Relaunch using the same python interpreter that was used to run this function
+    execute_py_file(__file__, interpreter_command=sys.executable)
 
 main_upgrade_from_github = _upgrade_entry_point