diff --git a/playbooks/kayobe-base/pre.yml b/playbooks/kayobe-base/pre.yml
index 34a317a0e..2f9232e34 100644
--- a/playbooks/kayobe-base/pre.yml
+++ b/playbooks/kayobe-base/pre.yml
@@ -131,7 +131,9 @@
         src: overrides.yml.j2
         dest: "{{ kayobe_config_src_dir }}/etc/kayobe/zz-10-overrides.yml"
 
-    - block:
+    - vars:
+        branch_prefix: "{{ 'unmaintained' if previous_release | lower == '2024.1' else 'stable' }}"
+      block:
         - name: Ensure previous kayobe directory exists
           file:
             path: "{{ previous_kayobe_src_dir }}"
@@ -139,7 +141,7 @@
 
         - name: Ensure previous kayobe repository is cloned
           command: >-
-            git clone {{ kayobe_src_dir }} {{ previous_kayobe_src_dir }} -b stable/{{ previous_release | lower }}
+            git clone {{ kayobe_src_dir }} {{ previous_kayobe_src_dir }} -b {{ branch_prefix }}/{{ previous_release | lower }}
 
         - name: Ensure previous kayobe-config directory exists
           file:
@@ -148,7 +150,7 @@
 
         - name: Ensure kayobe-config repository is cloned
           command: >-
-            git clone {{ kayobe_config_src_dir }} {{ previous_kayobe_config_src_dir }} -b stable/{{ previous_release | lower }}
+            git clone {{ kayobe_config_src_dir }} {{ previous_kayobe_config_src_dir }} -b {{ branch_prefix }}/{{ previous_release | lower }}
 
         - name: Ensure previous kolla-ansible directory exists
           file:
@@ -157,7 +159,7 @@
 
         - name: Ensure previous kolla-ansible repository is cloned
           command: >-
-            git clone {{ kolla_ansible_src_dir }} {{ previous_kolla_ansible_src_dir }} -b stable/{{ previous_release | lower }}
+            git clone {{ kolla_ansible_src_dir }} {{ previous_kolla_ansible_src_dir }} -b {{ branch_prefix }}/{{ previous_release | lower }}
 
         - name: Ensure previous kayobe is executed in verbose mode
           lineinfile:
@@ -180,14 +182,14 @@
             name: kayobe-galaxy-requirements
           vars:
             kayobe_galaxy_requirements_src_dir: "{{ previous_kayobe_src_dir }}"
-            kayobe_galaxy_requirements_branch: "stable/{{ previous_release | lower }}"
+            kayobe_galaxy_requirements_branch: "{{ branch_prefix }}/{{ previous_release | lower }}"
 
         - name: Update kolla-ansible requirements.yml
           include_role:
             name: kayobe-galaxy-requirements
           vars:
             kayobe_galaxy_requirements_src_dir: "{{ previous_kolla_ansible_src_dir }}"
-            kayobe_galaxy_requirements_branch: "stable/{{ previous_release | lower }}"
+            kayobe_galaxy_requirements_branch: "{{ branch_prefix }}/{{ previous_release | lower }}"
             kayobe_galaxy_requirements_dest_path: "/tmp/previous-kolla-ansible-requirements.yml"
 
       when: is_upgrade
diff --git a/playbooks/kayobe-overcloud-base/overrides.yml.j2 b/playbooks/kayobe-overcloud-base/overrides.yml.j2
index c13f16f1a..33e28d855 100644
--- a/playbooks/kayobe-overcloud-base/overrides.yml.j2
+++ b/playbooks/kayobe-overcloud-base/overrides.yml.j2
@@ -4,9 +4,6 @@ docker_daemon_debug: true
 docker_registry_mirrors:
   - "http://{{ zuul_site_mirror_fqdn }}:8082/"
 
-kolla_docker_namespace: "openstack.kolla"
-# use the published images from a site mirror of quay.io
-kolla_docker_registry: "{{ zuul_site_mirror_fqdn }}:4447"
 kolla_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kolla'].src_dir }}"
 kolla_source_version: "{{ zuul.projects['opendev.org/openstack/kolla'].checkout }}"
 kolla_ansible_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kolla-ansible'].src_dir }}"
diff --git a/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2 b/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2
index 4ac75a54c..d1f4d781b 100644
--- a/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2
+++ b/playbooks/kayobe-overcloud-upgrade-base/overrides.yml.j2
@@ -4,9 +4,6 @@ docker_daemon_debug: true
 docker_registry_mirrors:
   - "http://{{ zuul_site_mirror_fqdn }}:8082/"
 
-kolla_docker_namespace: "openstack.kolla"
-# use the published images from a site mirror of quay.io
-kolla_docker_registry: "{{ zuul_site_mirror_fqdn }}:4447"
 {% if not is_previous_release | default(false) %}
 kolla_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kolla'].src_dir }}"
 kolla_source_version: "{{ zuul.projects['opendev.org/openstack/kolla'].checkout }}"
diff --git a/playbooks/kayobe-seed-base/overrides.yml.j2 b/playbooks/kayobe-seed-base/overrides.yml.j2
index 2c4c6213f..523c71abb 100644
--- a/playbooks/kayobe-seed-base/overrides.yml.j2
+++ b/playbooks/kayobe-seed-base/overrides.yml.j2
@@ -6,9 +6,6 @@ docker_registry_image_full: "quay.io/libpod/registry:2.8.2"
 docker_registry_mirrors:
   - "http://{{ zuul_site_mirror_fqdn }}:8082/"
 
-kolla_docker_namespace: "openstack.kolla"
-# use the published images from a site mirror of quay.io
-kolla_docker_registry: "{{ zuul_site_mirror_fqdn }}:4447"
 # NOTE(mgoddard): The kolla repository is copied to /tmp/kolla and made
 # readable by the stack user.
 kolla_source_url: "/tmp/kolla"
diff --git a/playbooks/kayobe-seed-upgrade-base/overrides.yml.j2 b/playbooks/kayobe-seed-upgrade-base/overrides.yml.j2
index 49d493862..11797e695 100644
--- a/playbooks/kayobe-seed-upgrade-base/overrides.yml.j2
+++ b/playbooks/kayobe-seed-upgrade-base/overrides.yml.j2
@@ -6,9 +6,6 @@ docker_registry_image_full: "quay.io/libpod/registry:2.8.2"
 docker_registry_mirrors:
   - "http://{{ zuul_site_mirror_fqdn }}:8082/"
 
-kolla_docker_namespace: "openstack.kolla"
-# use the published images from a site mirror of quay.io
-kolla_docker_registry: "{{ zuul_site_mirror_fqdn }}:4447"
 {% if not is_previous_release | default(false) %}
 kolla_source_url: "{{ ansible_env.PWD ~ '/' ~ zuul.projects['opendev.org/openstack/kolla'].src_dir }}"
 kolla_source_version: "{{ zuul.projects['opendev.org/openstack/kolla'].checkout }}"