diff --git a/content/github/administering-a-repository/changing-the-default-branch.md b/content/github/administering-a-repository/changing-the-default-branch.md
index ad377044d76f..7e1a1c11352c 100644
--- a/content/github/administering-a-repository/changing-the-default-branch.md
+++ b/content/github/administering-a-repository/changing-the-default-branch.md
@@ -16,7 +16,7 @@ You can choose the default branch for a repository. The default branch is the ba
 
 {% note %}
 
-**Note**: If you use the Git-Subversion bridge, setting a different default branch will affect your `trunk` branch contents and the `HEAD` you see when you list references for the remote repository. For more information, see "[Support for Subversion clients](/github/importing-your-projects-to-github/support-for-subversion-clients)" and [git-ls-remote](https://git-scm.com/docs/git-ls-remote.html) in the Git documentation.
+**Note**: If you use the Git-Subversion bridge, changing the default branch will affect your `trunk` branch contents and the `HEAD` you see when you list references for the remote repository. For more information, see "[Support for Subversion clients](/github/importing-your-projects-to-github/support-for-subversion-clients)" and [git-ls-remote](https://git-scm.com/docs/git-ls-remote.html) in the Git documentation.
 
 {% endnote %}
 
@@ -51,8 +51,8 @@ To change the default branch, your repository must have more than one branch. Fo
 {% data reusables.repositories.navigate-to-repo %}
 {% data reusables.repositories.sidebar-settings %}
 {% data reusables.repositories.repository-branches %}
-4. In the default branch drop-down, choose the new default branch.
+1. In the default branch drop-down, choose the new default branch.
    ![Default branch dropdown selector](/assets/images/help/repository/repository-options-defaultbranch.png)
-5. Click **Update**.
+1. Click **Update**.
 
 {% endif %}
diff --git a/script/anonymize-branch.js b/script/anonymize-branch.js
new file mode 100755
index 000000000000..e5da59f3d46a
--- /dev/null
+++ b/script/anonymize-branch.js
@@ -0,0 +1,29 @@
+#!/usr/bin/env node
+
+// [start-readme]
+//
+// Flatten all the commits in the current branch into a single anonymized @Octomerger commit
+//
+// Usage: script/anonymize-branch.js <new-commit-message> [base-branch]
+// Example: script/anonymize-branch.js "nothing to see here"
+// If the optional [base-branch] argument is omitted, it will default to `main`
+//
+// [end-readme]
+
+process.env.GIT_AUTHOR_NAME = process.env.GIT_COMMITTER_NAME = 'Octomerger Bot'
+process.env.GIT_AUTHOR_EMAIL = process.env.GIT_COMMITTER_EMAIL = '63058869+Octomerger@users.noreply.github.com'
+
+const { execSync: exec } = require('child_process')
+const path = require('path')
+const args = process.argv.slice(2)
+const message = args[0]
+const base = args[1] || 'main'
+
+if (!message || !message.length) {
+  console.error(`Specify a new commit message in quotes. Example:\n\nscript/${path.basename(module.filename)} "new commit"`)
+  process.exit()
+}
+
+exec(`git reset $(git merge-base ${base} HEAD)`)
+exec('git add -A')
+exec(`git commit -m "${message}"`)