diff --git a/tasks/cf-deployment-release-notes-template/.rspec b/tasks/cf-deployment-release-notes-template/.rspec
new file mode 100644
index 00000000..099a6b85
--- /dev/null
+++ b/tasks/cf-deployment-release-notes-template/.rspec
@@ -0,0 +1,3 @@
+--pattern *_spec.rb
+--format documentation
+
diff --git a/tasks/cf-deployment-release-notes-template/Gemfile b/tasks/cf-deployment-release-notes-template/Gemfile
index bbd6d6ad..c308d558 100644
--- a/tasks/cf-deployment-release-notes-template/Gemfile
+++ b/tasks/cf-deployment-release-notes-template/Gemfile
@@ -1,10 +1,8 @@
 source 'https://rubygems.org'
 
-gem 'hashdiff'
-gem 'rspec'
-gem 'webmock'
+gem 'hashdiff', '0.3.8'
+gem 'rspec', '~> 3.8.0'
+gem 'webmock', '3.5.1'
+gem 'crack', '0.4.3'
+gem 'rexml', '3.4.4'
 
-group :development do
-  gem 'guard'
-  gem 'guard-rspec', require: false
-end
diff --git a/tasks/cf-deployment-release-notes-template/Gemfile.lock b/tasks/cf-deployment-release-notes-template/Gemfile.lock
index 14c20bb6..2a4ca80b 100644
--- a/tasks/cf-deployment-release-notes-template/Gemfile.lock
+++ b/tasks/cf-deployment-release-notes-template/Gemfile.lock
@@ -3,75 +3,42 @@ GEM
   specs:
     addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
-    coderay (1.1.2)
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
-    diff-lcs (1.3)
-    ffi (1.10.0)
-    formatador (0.2.5)
-    guard (2.15.0)
-      formatador (>= 0.2.4)
-      listen (>= 2.7, < 4.0)
-      lumberjack (>= 1.0.12, < 2.0)
-      nenv (~> 0.1)
-      notiffany (~> 0.0)
-      pry (>= 0.9.12)
-      shellany (~> 0.0)
-      thor (>= 0.18.1)
-    guard-compat (1.2.1)
-    guard-rspec (4.7.3)
-      guard (~> 2.1)
-      guard-compat (~> 1.1)
-      rspec (>= 2.99.0, < 4.0)
+    diff-lcs (1.6.2)
     hashdiff (0.3.8)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
-    lumberjack (1.0.13)
-    method_source (0.9.2)
-    nenv (0.3.0)
-    notiffany (0.1.1)
-      nenv (~> 0.1)
-      shellany (~> 0.0)
-    pry (0.12.2)
-      coderay (~> 1.1.0)
-      method_source (~> 0.9.0)
     public_suffix (7.0.5)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
-      ffi (~> 1.0)
+    rexml (3.4.4)
     rspec (3.8.0)
       rspec-core (~> 3.8.0)
       rspec-expectations (~> 3.8.0)
       rspec-mocks (~> 3.8.0)
-    rspec-core (3.8.0)
+    rspec-core (3.8.2)
       rspec-support (~> 3.8.0)
-    rspec-expectations (3.8.2)
+    rspec-expectations (3.8.6)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
-    rspec-mocks (3.8.0)
+    rspec-mocks (3.8.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.8.0)
-    rspec-support (3.8.0)
-    ruby_dep (1.5.0)
+    rspec-support (3.8.3)
     safe_yaml (1.0.5)
-    shellany (0.0.1)
-    thor (1.4.0)
     webmock (3.5.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
 
 PLATFORMS
+  arm64-darwin-23
   ruby
+  x86_64-linux
 
 DEPENDENCIES
-  guard
-  guard-rspec
-  hashdiff
-  rspec
-  webmock
+  crack (= 0.4.3)
+  hashdiff (= 0.3.8)
+  rexml (= 3.4.4)
+  rspec (~> 3.8.0)
+  webmock (= 3.5.1)
 
 BUNDLED WITH
-   2.0.1
+   2.4.19
diff --git a/tasks/cf-deployment-release-notes-template/README.md b/tasks/cf-deployment-release-notes-template/README.md
new file mode 100644
index 00000000..dcb3d1c8
--- /dev/null
+++ b/tasks/cf-deployment-release-notes-template/README.md
@@ -0,0 +1,30 @@
+# cf-deployment-release-notes-template
+
+This task generates the cf-deployment release notes template.
+
+## Run tests locally
+
+### Prerequisites
+
+- Ruby 3.2+
+- Bundler installed
+
+### From repository root
+
+```bash
+cd tasks/cf-deployment-release-notes-template
+bundle install
+bundle exec rspec
+```
+
+### From task directory (already there)
+
+```bash
+bundle install
+bundle exec rspec
+```
+
+Notes:
+- The local `.rspec` config is set to run `*_spec.rb` files in this directory.
+- If dependencies changed, re-run `bundle install` before running tests.
+
diff --git a/tasks/cf-deployment-release-notes-template/release_changes.rb b/tasks/cf-deployment-release-notes-template/release_changes.rb
index 4bda8340..bbaad9a7 100644
--- a/tasks/cf-deployment-release-notes-template/release_changes.rb
+++ b/tasks/cf-deployment-release-notes-template/release_changes.rb
@@ -17,7 +17,12 @@ def load_from_files(filename, opsfile: false)
       main_releases_list = collect_releases_and_stemcells(main_branch, opsfile: opsfile)
 
       release_updates = ReleaseUpdates.new
-      change_set = HashDiff.diff(main_releases_list, release_candidate_releases_list)
+      hashdiff = if Object.const_defined?(:HashDiff)
+                   Object.const_get(:HashDiff)
+                 else
+                   Object.const_get(:Hashdiff)
+                 end
+      change_set = hashdiff.diff(main_releases_list, release_candidate_releases_list)
       change_set.each do |change|
         release_updates.load_change(change)
       end
@@ -33,7 +38,7 @@ def load_yaml_file(input_name, filename)
       return nil unless File.exist? filepath
 
       file_text = File.read(filepath)
-      YAML.load(file_text) || nil
+      YAML.load(file_text, aliases: true) || nil
     end
 
     def collect_releases_and_stemcells(manifest, opsfile: false)
diff --git a/tasks/cf-deployment-release-notes-template/release_changes_spec.rb b/tasks/cf-deployment-release-notes-template/release_changes_spec.rb
index 6ab7c440..973aeec7 100644
--- a/tasks/cf-deployment-release-notes-template/release_changes_spec.rb
+++ b/tasks/cf-deployment-release-notes-template/release_changes_spec.rb
@@ -14,7 +14,7 @@
 
   after(:all) do
     Dir.chdir(@current_work_dir)
-    FileUtils.rm_rf(@tmp_work_dir) if File.exists?(@tmp_work_dir)
+    FileUtils.rm_rf(@tmp_work_dir) if File.exist?(@tmp_work_dir)
   end
 
   let(:ru) { ReleaseUpdates.new }
@@ -363,7 +363,7 @@
     end
 
     context 'when the operation is "-"' do
-      let (:op) { '-' }
+      let(:op) { '-' }
       it 'saves the version as old_version' do
         updates.load_change(change)
         expect(updates.get_update_by_name(name).old_version).to eq version
diff --git a/tasks/cf-deployment-release-notes-template/task b/tasks/cf-deployment-release-notes-template/task
index 6ea23a8e..8e986e18 100755
--- a/tasks/cf-deployment-release-notes-template/task
+++ b/tasks/cf-deployment-release-notes-template/task
@@ -4,10 +4,8 @@ set -exu
 SCRIPT_DIR=runtime-ci/tasks/cf-deployment-release-notes-template
 
 pushd $SCRIPT_DIR
-  PARSED_BUNDLE_VERSION=$(sed -n '/BUNDLED WITH/{;n;p;}' Gemfile.lock)
-  gem uninstall bundler
-  gem install bundler --version "$PARSED_BUNDLE_VERSION"
-  bundle install --without development
+  bundle config set --local without development
+  bundle install
 popd
 
 BUNDLE_GEMFILE=$SCRIPT_DIR/Gemfile \
diff --git a/tasks/cf-deployment-release-notes-template/task.yml b/tasks/cf-deployment-release-notes-template/task.yml
index beff61f6..58c561f8 100644
--- a/tasks/cf-deployment-release-notes-template/task.yml
+++ b/tasks/cf-deployment-release-notes-template/task.yml
@@ -5,7 +5,7 @@ image_resource:
   type: registry-image
   source:
     repository: ruby
-    tag: 2.6-slim
+    tag: 3.2-slim
 
 inputs:
 - name: runtime-ci