diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 7289db69c..42418aa7e 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -43,47 +43,6 @@ updates:
   - dependency-name: "k8s.io/*"
     update-types: ["version-update:semver-major", "version-update:semver-minor"]
 ## main branch config ends here
-## release-1.0 branch config starts here
-# github-actions
-- directory: "/"
-  package-ecosystem: "github-actions"
-  schedule:
-    interval: "weekly"
-    day: "monday"
-  cooldown:
-    default-days: 7
-  target-branch: release-1.0
-  groups:
-    all-github-actions:
-      patterns: [ "*" ]
-  commit-message:
-    prefix: ":seedling:"
-    include: scope
-# Go directories
-- directories:
-  - "/"
-  package-ecosystem: "gomod"
-  schedule:
-    interval: "weekly"
-    day: "monday"
-  cooldown:
-    default-days: 7
-  target-branch: release-1.0
-  groups:
-    all-go-mod-patch-and-minor:
-      patterns: [ "*" ]
-      update-types: [ "patch", "minor" ]
-  commit-message:
-    prefix: ":seedling:"
-    include: scope
-  ignore:
-  # Ignore controller-runtime major and minor bumps as its upgraded manually.
-  - dependency-name: "sigs.k8s.io/controller-runtime"
-    update-types: ["version-update:semver-major", "version-update:semver-minor"]
-  # Ignore k8s major and minor bumps and its transitives modules
-  - dependency-name: "k8s.io/*"
-    update-types: ["version-update:semver-major", "version-update:semver-minor"]
-## release-1.0 branch config ends here
 ## release-2.0 branch config starts here
 # github-actions
 - directory: "/"
diff --git a/README.md b/README.md
index c3b527d92..f2dac4c5b 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,7 @@ kubectl delete -f $ORC_RELEASE
 
 ## Supported OpenStack resources
 
-| **controller**              | **1.x** | **2.x** | **main** |
+| **controller**              | **1.x (EOL)** | **2.x** | **main** |
 |:---------------------------:|:-------:|:-------:|:--------:|
 | addressscope                |         |    ✔    |     ✔    |
 | application credential      |         |    ◐    |     ◐    |
diff --git a/SECURITY.md b/SECURITY.md
index 936f73a2d..e8a9e7210 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -5,7 +5,7 @@
 | Version | Supported          |
 | ------- | ------------------ |
 | < 1.0   | :x:                |
-| 1.x     | :white_check_mark: |
+| 1.x     | :x:                |
 | 2.x     | :white_check_mark: |
 
 ## Reporting a Vulnerability