diff --git a/source/cdk/config_schema.py b/source/cdk/config_schema.py
index 6dfbeaeb..e8be3892 100644
--- a/source/cdk/config_schema.py
+++ b/source/cdk/config_schema.py
@@ -107,6 +107,14 @@
     '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/
@@ -122,7 +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', #
+    '3.11.0':  '0.5.16', # confirmed
 }
 PARALLEL_CLUSTER_PYTHON_VERSIONS = {
     # This can be found on the head node at /opt/parallelcluster/pyenv/versions
@@ -138,7 +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', #
+    '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/
@@ -154,7 +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':  '23.11.7', #
+    '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/
@@ -170,7 +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', #
+    '3.11.0':  '23-11-10-1', # confirmed
 }
 SLURM_REST_API_VERSIONS = {
     '23-02-2-1': '0.0.39',
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 }