diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d7e4098a3..ae418fc20 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ concurrency:
 env:
   RSPEC_CI: true
   # This tells rspec-rails what branch to run in ci
-  RSPEC_VERSION: '= 3.13.0.pre'
+  RSPEC_VERSION: '~> 3.13.0'
 jobs:
   rubocop:
     name: Rubocop
diff --git a/Changelog.md b/Changelog.md
index 12644c448..230eafa46 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,9 @@
 ### Development
 [Full Changelog](http://github.com/rspec/rspec-expectations/compare/v3.12.3...main)
 
+### 3.13.0 / 2024-02-04
+[Full Changelog](http://github.com/rspec/rspec-expectations/compare/v3.12.4...v3.13.0)
+
 Enhancements:
 
 * Update `eq` and `eql` matchers to better highlight difference in string encoding.
diff --git a/demo.rb b/demo.rb
new file mode 100644
index 000000000..9b1829767
--- /dev/null
+++ b/demo.rb
@@ -0,0 +1,9 @@
+require './lib/rspec/expectations'
+class IsolatedTest
+  include RSpec::Matchers
+  def test
+    expect(nil).to(eq(""))
+  end
+end
+RSpec::Expectations::Syntax.enable_expect(IsolatedTest)
+IsolatedTest.new.test
diff --git a/lib/rspec/expectations/version.rb b/lib/rspec/expectations/version.rb
index 622b855d5..e6052276a 100644
--- a/lib/rspec/expectations/version.rb
+++ b/lib/rspec/expectations/version.rb
@@ -2,7 +2,7 @@ module RSpec
   module Expectations
     # @private
     module Version
-      STRING = '3.13.0.pre'
+      STRING = '3.13.0'
     end
   end
 end
diff --git a/maintenance-branch b/maintenance-branch
index ba2906d06..a71b13e28 100644
--- a/maintenance-branch
+++ b/maintenance-branch
@@ -1 +1 @@
-main
+3-13-maintenance
diff --git a/script/clone_all_rspec_repos b/script/clone_all_rspec_repos
index 1f93877e4..85b3961cc 100755
--- a/script/clone_all_rspec_repos
+++ b/script/clone_all_rspec_repos
@@ -12,7 +12,7 @@ if is_mri; then
   clone_repo "rspec-core"
   clone_repo "rspec-expectations"
   clone_repo "rspec-mocks"
-  clone_repo "rspec-rails"
+  clone_repo "rspec-rails" "6-1-maintenance"
 
   if rspec_support_compatible; then
     clone_repo "rspec-support"