diff --git a/source/cdk/config_schema.py b/source/cdk/config_schema.py
index 9b8a4360..e8be3892 100644
--- a/source/cdk/config_schema.py
+++ b/source/cdk/config_schema.py
@@ -87,6 +87,9 @@
 #     * Upgrade Python to 3.9.19 (from 3.9.17).
 # 3.10.1:
 #     * Build fix for China regions
+# 3.11.0:
+#     * Add support for ap-southeast-3
+#     * login node enhancements
 MIN_PARALLEL_CLUSTER_VERSION = parse_version('3.6.0')
 # Update source/resources/default_config.yml with latest version when this is updated.
 PARALLEL_CLUSTER_VERSIONS = [
@@ -102,7 +105,16 @@
     '3.9.3',
     '3.10.0',
     '3.10.1',
+    '3.11.0',
 ]
+PARALLEL_CLUSTER_ENROOT_VERSIONS = {
+    # This can be found on the head node by running 'yum info enroot'
+    '3.11.0':  '3.4.1', # confirmed
+}
+PARALLEL_CLUSTER_PYXIS_VERSIONS = {
+    # This can be found on the head node at /opt/parallelcluster/sources
+    '3.11.0':  '0.20.0', # confirmed
+}
 PARALLEL_CLUSTER_MUNGE_VERSIONS = {
     # This can be found on the head node at /opt/parallelcluster/sources
     # This can be found on the head node at /etc/chef/local-mode-cache/cache/
@@ -118,6 +130,7 @@
     '3.9.3':   '0.5.15', # confirmed
     '3.10.0':  '0.5.16', # confirmed
     '3.10.1':  '0.5.16', # confirmed
+    '3.11.0':  '0.5.16', # confirmed
 }
 PARALLEL_CLUSTER_PYTHON_VERSIONS = {
     # This can be found on the head node at /opt/parallelcluster/pyenv/versions
@@ -133,6 +146,7 @@
     '3.9.3':   '3.9.17', # confirmed
     '3.10.0':  '3.9.19', # confirmed
     '3.10.1':  '3.9.19', # confirmed
+    '3.11.0':  '3.9.20', # confirmed
 }
 PARALLEL_CLUSTER_SLURM_VERSIONS = {
     # This can be found on the head node at /etc/chef/local-mode-cache/cache/
@@ -148,6 +162,7 @@
     '3.9.3':   '23.11.7', # confirmed
     '3.10.0':  '23.11.7', # confirmed
     '3.10.1':  '23.11.7', # confirmed
+    '3.11.0':  '23.11.10', # confirmed
 }
 PARALLEL_CLUSTER_PC_SLURM_VERSIONS = {
     # This can be found on the head node at /etc/chef/local-mode-cache/cache/
@@ -163,6 +178,7 @@
     '3.9.3':   '23-11-7-1', # confirmed
     '3.10.0':  '23-11-7-1', # confirmed
     '3.10.1':  '23-11-7-1', # confirmed
+    '3.11.0':  '23-11-10-1', # confirmed
 }
 SLURM_REST_API_VERSIONS = {
     '23-02-2-1': '0.0.39',
@@ -173,6 +189,7 @@
     '23-02-7-1': '0.0.39',
     '23-11-4-1': '0.0.39',
     '23-11-7-1': '0.0.39',
+    '23-11-10-1': '0.0.39',
 }
 
 def get_parallel_cluster_version(config):
diff --git a/source/resources/lambdas/CreateParallelCluster/CreateParallelCluster.py b/source/resources/lambdas/CreateParallelCluster/CreateParallelCluster.py
index 0e825667..35603b65 100644
--- a/source/resources/lambdas/CreateParallelCluster/CreateParallelCluster.py
+++ b/source/resources/lambdas/CreateParallelCluster/CreateParallelCluster.py
@@ -150,8 +150,8 @@ def lambda_handler(event, context):
                 logger.info("Create call succeeded.")
                 logger.info(f"response={response}")
             except Exception as e:
-                logger.exception("ParallelCluster create exception. Ignoring exception so config stack deployment doesn't fail,")
-                message = f"ParallelCluster create exception:\n\n{e}"
+                logger.exception(f"ParallelCluster create exception. Ignoring exception so config stack deployment doesn't fail\n\nException:\n{e}\n\nException dict:\n{e.__dict__}")
+                message = f"ParallelCluster create exception:\n\nException:\n{e}\n\nException dict:\n{e.__dict__}"
                 sns_client.publish(
                     TopicArn = environ['ErrorSnsTopicArn'],
                     Subject = f"{cluster_name} CreateParallelCluster create failed",
diff --git a/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/config-pyxis.yml b/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/config-pyxis.yml
new file mode 100644
index 00000000..4b1fddbd
--- /dev/null
+++ b/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/config-pyxis.yml
@@ -0,0 +1,15 @@
+---
+# APC 3.11.0 added the pyxis Slurm Spank plugin
+# This needs to also be built on login nodes.
+# Currently, I am not doing that so until then, disable the Spank plugin by
+# renaming plugstack.conf
+
+- name: Rename plugstack.conf to plugstack.conf.back
+  shell:
+    cmd: |
+      set -ex
+
+      plugstack_conf=/opt/slurm/etc/plugstack.conf
+      if [[ -e  $plugstack_conf ]]; then
+          mv $plugstack_conf ${plugstack_conf}.back
+      fi
diff --git a/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/main.yml b/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/main.yml
index 2af9a5d2..8c20859b 100644
--- a/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/main.yml
+++ b/source/resources/playbooks/roles/ParallelClusterHeadNode/tasks/main.yml
@@ -7,3 +7,4 @@
 - { include_tasks: config-slurmrestd.yml, tags: slurmrestd }
 - { include_tasks: config-licenses.yml, tags: licenses }
 - { include_tasks: config-slurmdb-accounts.yml, tags: accounts }
+- { include_tasks: config-pyxis.yml }