diff --git a/content/design-patterns/ex8streams/Step5.en.md b/content/design-patterns/ex8streams/Step5.en.md
index 159628aa..c703a3df 100644
--- a/content/design-patterns/ex8streams/Step5.en.md
+++ b/content/design-patterns/ex8streams/Step5.en.md
@@ -18,21 +18,21 @@ aws lambda create-event-source-mapping \
 The following is the expected result.
 ```json
 {
+    "UUID": "0dcede66-709c-4073-a628-724d01b92095",
+    "BatchSize": 100,
     "MaximumBatchingWindowInSeconds": 0,
-    "UUID": "be5884e0-bcd9-4301-b535-329e8c13bb73",
+    "ParallelizationFactor": 1,
+    "EventSourceArn": "arn:aws:dynamodb:<REGION>:<ACCOUNTID>:table/logfile/stream/2021-12-31T00:00:00.000",
+    "FunctionArn": "arn:aws:lambda:<REGION>:<ACCOUNTID>:function:ddbreplica_lambda",
+    "LastModified": 1663286115.972,
+    "LastProcessingResult": "No records processed",
+    "State": "Creating",
     "StateTransitionReason": "User action",
-    "LastModified": 1607986748.972,
-    "BatchSize": 100,
     "DestinationConfig": {
         "OnFailure": {}
     },
-    "EventSourceArn": "arn:aws:dynamodb:<REGION>:<ACCOUNTID>:table/logfile/stream/2020-12-31T00:00:00.000",
-    "FunctionArn": "arn:aws:lambda:<REGION>:<ACCOUNTID>:function:ddbreplica_lambda",
-    "State": "Creating",
-    "ParallelizationFactor": 1,
-    "LastProcessingResult": "No records processed",
-    "MaximumRetryAttempts": 10000,
-    "MaximumRecordAgeInSeconds": 604800,
-    "BisectBatchOnFunctionError": false
+    "MaximumRecordAgeInSeconds": -1,
+    "BisectBatchOnFunctionError": false,
+    "MaximumRetryAttempts": -1
 }
 ```
diff --git a/content/design-patterns/setup/Step2.en.md b/content/design-patterns/setup/Step2.en.md
index 0d679c4f..97849a3e 100644
--- a/content/design-patterns/setup/Step2.en.md
+++ b/content/design-patterns/setup/Step2.en.md
@@ -12,7 +12,7 @@ python --version
 ```
 Output:
 ```plain
-Python 3.6.8
+Python 3.6.12
 ```
 
 
@@ -26,7 +26,7 @@ aws --version
 Sample output:
 ```bash
 #Note that your linux kernel version may differ from the example.
-aws-cli/1.16.310 Python/3.6.8 Linux/4.14.138-89.102.amzn1.x86_64 botocore/1.13.50
+aws-cli/1.18.139 Python/3.6.12 Linux/4.14.193-113.317.amzn1.x86_64 botocore/1.17.62
 ```
 
-**Note**: *Make sure you have AWS CLI version 1.16.310 and python 3.6.8 before proceeding. If you do not have these versions, review [Step 1]({{< ref "design-patterns/setup/Step1" >}}) to ensure you have completed each command correctly.*
+**Note**: *Make sure you have AWS CLI version 1.18.139 and python 3.6.12 before proceeding. If you do not have these versions, review [Step 1]({{< ref "design-patterns/setup/Step1" >}}) to ensure you have completed each command correctly.*
diff --git a/design-patterns/cloudformation/UserData.sh b/design-patterns/cloudformation/UserData.sh
index 0cf3da1c..32c16e42 100644
--- a/design-patterns/cloudformation/UserData.sh
+++ b/design-patterns/cloudformation/UserData.sh
@@ -118,10 +118,21 @@ function configure_python_and_install
   /usr/bin/pip-3.6 install -r /home/ec2-user/workshop/requirements.txt
 
   log frustrating pip user installs
-  mkdir /home/ec2-user/.local
+  mkdir /home/ec2-user/.local 1>&2 2>/dev/null
   chattr +i /home/ec2-user/.local
 
 }
+function verify_configuration_and_signal
+{
+  log verify_configuration_and_signal running.
+  log Checking if python36 installed by yum.
+  yum list installed python36 1>/dev/null || signal_failure_and_exit "Python3.6 not installed correctly."
+
+  log Checking if python scripts are in workshop directory.
+  ls -l /home/ec2-user/workshop/*.py 1>/dev/null || signal_failure_and_exit "Python scripts not in workshop directory."
+
+  signal_success
+}
 function lock_instance
 {
   cat > /etc/profile.d/motd.sh << "EOF"
@@ -171,6 +182,12 @@ function signal_success
 {
   /opt/aws/bin/cfn-signal --success true $CFN_WAIT_HANDLE
 }
+function signal_failure_and_exit
+{
+  /opt/aws/bin/cfn-signal --success false $CFN_WAIT_HANDLE --reason "$@"
+  log failure signal sent to CloudFormation: "${@}"
+  exit 0
+}
 
 #Main Execution
 lock_instance
@@ -183,5 +200,5 @@ lock_repo_version
 update_yum_packages
 
 configure_python_and_install
+verify_configuration_and_signal
 unlock_instance
-signal_success
diff --git a/design-patterns/cloudformation/lab.yaml b/design-patterns/cloudformation/lab.yaml
index be2e3746..d4a01825 100644
--- a/design-patterns/cloudformation/lab.yaml
+++ b/design-patterns/cloudformation/lab.yaml
@@ -36,58 +36,58 @@ Conditions:
 
 Mappings:
   AmazonLinuxAMI:
-    eu-central-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-07a06e1c9f42df03e
-      GUID: fd3054b03123
+    us-east-1:
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0b46d3491dbc6c19e
+      GUID: 6f7652f821ac
+    us-east-2:
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-045ded0b933b76edd
+      GUID: 6f7652f821ac
     us-west-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-01daf83d8a6f588c5
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-098679a260e1209d1
+      GUID: 6f7652f821ac
     us-west-2:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-09b92cd132204c704
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0bd66fad2c6056e19
+      GUID: 6f7652f821ac
     eu-west-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-0ce6dfbc4cb843402
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-04fb47915aaea1e62
+      GUID: 6f7652f821ac
     eu-west-2:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-0e30eafcc0935e6a7
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0b71de60f601e6897
+      GUID: 6f7652f821ac
+    eu-central-1:
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-08d125a524c37d22e
+      GUID: 6f7652f821ac
     sa-east-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-0e7d312b22eb1a81b
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-008dcd30fab4ab54d
+      GUID: 6f7652f821ac
     ap-south-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-08e789bb5ca3b9bfd
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0bfcf5aa671f35822
+      GUID: 6f7652f821ac
     ap-southeast-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-05ab00911168ec7af
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0253cac8b82dc7263
+      GUID: 6f7652f821ac
     ap-southeast-2:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-042710e2a62ecec92
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0e00766c034642337
+      GUID: 6f7652f821ac
     ap-northeast-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-0a9fb4802d08e965a
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-00238cb37d54b2a4c
+      GUID: 6f7652f821ac
     ap-northeast-2:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-01ea3038c7b18e526
-      GUID: fd3054b03123
-    us-east-1:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-001efa431f19d816f
-      GUID: fd3054b03123
-    us-east-2:
-      # Name: amzn-ami-hvm-2018.03.0.20190826-x86_64-ebs
-      AMI: ami-02950d3d85d31b6f9
-      GUID: fd3054b03123
+      # Name: amzn-ami-hvm-2018.03.0.20200904.0-x86_64-ebs
+      AMI: ami-0ddea77382fd34b61
+      GUID: 6f7652f821ac
   DesignPatterns:
     options:
       UserDataURL: "https://amazon-dynamodb-labs.com/assets/UserData.sh"
diff --git a/design-patterns/requirements.txt b/design-patterns/requirements.txt
index 54b9e307..a67071da 100644
--- a/design-patterns/requirements.txt
+++ b/design-patterns/requirements.txt
@@ -1,2 +1,2 @@
-boto3==1.10.48
-awscli==1.16.310
+boto3==1.14.62
+awscli==1.18.139