diff --git a/.gitreview b/.gitreview
index 25a627397f..fa4a74a2f1 100644
--- a/.gitreview
+++ b/.gitreview
@@ -2,4 +2,4 @@
 host=review.opendev.org
 port=29418
 project=openstack/kolla.git
-defaultbranch=stable/2024.1
+defaultbranch=unmaintained/2024.1
diff --git a/docker/base/Dockerfile.j2 b/docker/base/Dockerfile.j2
index 8b7d044116..674ed91ab3 100644
--- a/docker/base/Dockerfile.j2
+++ b/docker/base/Dockerfile.j2
@@ -301,7 +301,7 @@ COPY apt_preferences /etc/apt/preferences.d/kolla-custom
 
 {% set base_apt_keys = [
    {'name': 'erlang-ppa', 'keyid': 'F77F1EDA57EBB1CC'},
-   {'name': 'rabbitmq',   'keyid': '9F4587F226208342'},
+   {'name': 'rabbitmq',   'keyid': '6B73A36E6026DFCA'},
    {'name': 'haproxy',    'keyid': 'CFFB779AADC995E4F350A060505D97A41C61B9CD'},
 ] %}
 
diff --git a/kolla/common/config.py b/kolla/common/config.py
index f04177b2b5..1b475d3899 100644
--- a/kolla/common/config.py
+++ b/kolla/common/config.py
@@ -381,7 +381,7 @@ def parse(conf, args, usage=None, prog=None,
     # NOTE(jeffrey4l): set the default base tag based on the
     # base option
     conf.set_default('base_tag', DEFAULT_BASE_TAGS[conf.base]['tag'])
-    prefix = '' if conf.openstack_release == 'master' else 'stable-'
+    prefix = '' if conf.openstack_release == 'master' else 'unmaintained-'
     openstack_branch = '{}{}'.format(prefix, conf.openstack_release)
     openstack_branch_slashed = openstack_branch.replace('-', '/')
     conf.set_default('openstack_branch', openstack_branch)
diff --git a/kolla/template/repos-noble.yaml b/kolla/template/repos-noble.yaml
index 584e724b38..6078190158 100644
--- a/kolla/template/repos-noble.yaml
+++ b/kolla/template/repos-noble.yaml
@@ -47,7 +47,7 @@ ubuntu:
     component: ""
     gpg_key: "proxysql.asc"
   rabbitmq:
-    url: "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/ubuntu"
+    url: "https://deb1.rabbitmq.com/rabbitmq-server/ubuntu/noble"
     suite: "noble"
     component: "main"
     gpg_key: "rabbitmq.gpg"
@@ -100,7 +100,7 @@ ubuntu-aarch64:
     component: ""
     gpg_key: "proxysql.asc"
   rabbitmq:
-    url: "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/ubuntu"
+    url: "https://deb1.rabbitmq.com/rabbitmq-server/ubuntu/noble"
     suite: "noble"
     component: "main"
     arch: "amd64"
diff --git a/kolla/template/repos.yaml b/kolla/template/repos.yaml
index b434a53b8f..6c1c1bd6b6 100644
--- a/kolla/template/repos.yaml
+++ b/kolla/template/repos.yaml
@@ -86,7 +86,7 @@ debian:
     component: ""
     gpg_key: "proxysql.asc"
   rabbitmq:
-    url: "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/debian"
+    url: "https://deb1.rabbitmq.com/rabbitmq-server/debian/bookworm"
     suite: "bookworm"
     component: "main"
     gpg_key: "rabbitmq.gpg"
@@ -138,7 +138,7 @@ debian-aarch64:
     component: ""
     gpg_key: "proxysql.asc"
   rabbitmq:
-    url: "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/debian"
+    url: "https://deb1.rabbitmq.com/rabbitmq-server/debian/bookworm"
     suite: "bookworm"
     component: "main"
     # NOTE(mnasiadka): Since rabbitmq is really noarch and community mirror is not
@@ -230,7 +230,7 @@ ubuntu:
     component: ""
     gpg_key: "proxysql.asc"
   rabbitmq:
-    url: "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/ubuntu"
+    url: "https://deb1.rabbitmq.com/rabbitmq-server/ubuntu/jammy"
     suite: "jammy"
     component: "main"
     gpg_key: "rabbitmq.gpg"
@@ -282,7 +282,7 @@ ubuntu-aarch64:
     component: ""
     gpg_key: "proxysql.asc"
   rabbitmq:
-    url: "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/ubuntu"
+    url: "https://deb1.rabbitmq.com/rabbitmq-server/ubuntu/jammy"
     suite: "jammy"
     component: "main"
     arch: "amd64"
diff --git a/kolla/tests/test_methods.py b/kolla/tests/test_methods.py
index afa21e2ab2..e55bc2a537 100644
--- a/kolla/tests/test_methods.py
+++ b/kolla/tests/test_methods.py
@@ -85,8 +85,8 @@ def test_enable_repos_debian_arch(self):
             'base_package_type': 'deb'
         }
 
-        result = methods.handle_repos(template_vars, ['rabbitmq'], 'enable')
-        expectCmd = "RUN echo 'Uris: https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/debian' "  # noqa: E501
+        result = methods.handle_repos(template_vars, ["rabbitmq"], "enable")
+        expectCmd = "RUN echo 'Uris: https://deb1.rabbitmq.com/rabbitmq-server/debian/bookworm' "  # noqa: E501
         expectCmd += ">/etc/apt/sources.list.d/rabbitmq.sources && "
         expectCmd += "echo 'Components: main' "
         expectCmd += ">>/etc/apt/sources.list.d/rabbitmq.sources && "
@@ -133,7 +133,7 @@ def test_enable_repos_debian_multiple(self):
         expectCmd += ">>/etc/apt/sources.list.d/grafana.sources && "
 
         expectCmd += "echo 'Uris: "
-        expectCmd += "https://ppa1.rabbitmq.com/rabbitmq/rabbitmq-server/deb/debian' "  # noqa: E501
+        expectCmd += "https://deb1.rabbitmq.com/rabbitmq-server/debian/bookworm' "  # noqa: E501
         expectCmd += ">/etc/apt/sources.list.d/rabbitmq.sources && "
         expectCmd += "echo 'Components: main' "
         expectCmd += ">>/etc/apt/sources.list.d/rabbitmq.sources && "
diff --git a/releasenotes/notes/handle-deprecated-rabbitmq-package-archive-47548e7a41baa68b.yaml b/releasenotes/notes/handle-deprecated-rabbitmq-package-archive-47548e7a41baa68b.yaml
new file mode 100644
index 0000000000..b24cc3cdc0
--- /dev/null
+++ b/releasenotes/notes/handle-deprecated-rabbitmq-package-archive-47548e7a41baa68b.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    `As announced in July 2025 <https://www.rabbitmq.com/blog/2025/07/16/debian-apt-repositories-are-moving>`__,
+    the RabbitMQ project has changed the location and signing key for their Debian and
+    Ubuntu packages. The repository configuration has been updated accordingly.
+    `LP#2131736 <https://launchpad.net/bugs/2131736>`__