diff --git a/demo1-getting-started.py b/demo1-getting-started.py
index 997bff6..3030714 100644
--- a/demo1-getting-started.py
+++ b/demo1-getting-started.py
@@ -33,6 +33,7 @@ project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
 
 # default region
 region_name = 'RegionOne'
diff --git a/demo3-microservice.py b/demo3-microservice.py
index 0139106..4c1a5ad 100644
--- a/demo3-microservice.py
+++ b/demo3-microservice.py
@@ -25,6 +25,7 @@ project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
diff --git a/demo4-scale-out-add-worker.py b/demo4-scale-out-add-worker.py
index 95af385..14b40b1 100644
--- a/demo4-scale-out-add-worker.py
+++ b/demo4-scale-out-add-worker.py
@@ -27,6 +27,7 @@ project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #
diff --git a/demo4-scale-out.py b/demo4-scale-out.py
index f194c0a..86e1a24 100644
--- a/demo4-scale-out.py
+++ b/demo4-scale-out.py
@@ -27,6 +27,7 @@ project_network = 'CloudComp' + str(group_number) + '-net'
 
 # The image to look for and use for the started instance
 ubuntu_image_name = "Ubuntu 18.04 - Bionic Beaver - 64-bit - Cloud Based Image"
+# TODO: Ubuntu >18.04 would require major updates to faafo example again/better option: complete rewrite of example?
 
 # The public key to be used for SSH connection, please make sure, that you have the corresponding private key
 #