diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 8bab57e65109ac..cff80e47c7ef28 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -251,6 +251,8 @@ jobs:
       - name: Run ruby-bench
         run: ruby run_benchmarks.rb -e "ruby::../build/install/bin/ruby" ${{ matrix.bench_opts }}
         working-directory: ruby-bench
+        env:
+          BUNDLER_VERSION: 0
 
       - uses: ./.github/actions/slack
         with:
diff --git a/.github/workflows/zjit-macos.yml b/.github/workflows/zjit-macos.yml
index 97ee147ad3d0ee..1e57379e678fc0 100644
--- a/.github/workflows/zjit-macos.yml
+++ b/.github/workflows/zjit-macos.yml
@@ -225,6 +225,8 @@ jobs:
       - name: Run ruby-bench
         run: ruby run_benchmarks.rb -e "zjit::../build/install/bin/ruby ${{ matrix.ruby_opts }}" ${{ matrix.bench_opts }}
         working-directory: ruby-bench
+        env:
+          BUNDLER_VERSION: 0
 
       - uses: ./.github/actions/slack
         with:
diff --git a/.github/workflows/zjit-ubuntu.yml b/.github/workflows/zjit-ubuntu.yml
index 2f3df123d401e6..633628f3e6ec08 100644
--- a/.github/workflows/zjit-ubuntu.yml
+++ b/.github/workflows/zjit-ubuntu.yml
@@ -279,6 +279,8 @@ jobs:
       - name: Run ruby-bench
         run: ruby run_benchmarks.rb -e "zjit::../build/install/bin/ruby ${{ matrix.ruby_opts }}" ${{ matrix.bench_opts }}
         working-directory: ruby-bench
+        env:
+          BUNDLER_VERSION: 0
 
       - uses: ./.github/actions/slack
         with:
diff --git a/lib/bundler/cli/config.rb b/lib/bundler/cli/config.rb
index 6a77e4a65ea386..976cda748466ce 100644
--- a/lib/bundler/cli/config.rb
+++ b/lib/bundler/cli/config.rb
@@ -87,16 +87,21 @@ def run
 
         if value.nil?
           warn_unused_scope "Ignoring --#{scope} since no value to set was given"
+          current_value = Bundler.settings[name]
 
           if options[:parseable]
             if value = Bundler.settings[name]
               Bundler.ui.info("#{name}=#{value}")
             end
-            return
+          else
+            confirm(name)
           end
 
-          confirm(name)
-          return
+          if current_value.nil?
+            exit 1
+          else
+            return
+          end
         end
 
         Bundler.ui.info(message) if message
diff --git a/pathname_builtin.rb b/pathname_builtin.rb
index 60f936632fc120..d3da3158725bd9 100644
--- a/pathname_builtin.rb
+++ b/pathname_builtin.rb
@@ -349,16 +349,15 @@ def sub_ext(repl)
 
   if File::ALT_SEPARATOR
     # Separator list string.
-    SEPARATOR_LIST = Regexp.quote "#{File::ALT_SEPARATOR}#{File::SEPARATOR}"
+    separator_list = Regexp.quote "#{File::ALT_SEPARATOR}#{File::SEPARATOR}"
     # Regexp that matches a separator.
-    SEPARATOR_PAT = /[#{SEPARATOR_LIST}]/
+    SEPARATOR_PAT = /[#{separator_list}]/
   else
-    SEPARATOR_LIST = Regexp.quote File::SEPARATOR
-    SEPARATOR_PAT = /#{SEPARATOR_LIST}/
+    separator_list = Regexp.quote File::SEPARATOR
+    SEPARATOR_PAT = /#{separator_list}/
   end
-  SEPARATOR_LIST.freeze
   SEPARATOR_PAT.freeze
-  private_constant :SEPARATOR_LIST, :SEPARATOR_LIST
+  private_constant :SEPARATOR_PAT
 
   if File.dirname('A:') == 'A:.' # DOSish drive letter
     # Regexp that matches an absolute path.
diff --git a/spec/bundler/bundler/cli_spec.rb b/spec/bundler/bundler/cli_spec.rb
index d1e6d7d411d77d..56caf9937e29f6 100644
--- a/spec/bundler/bundler/cli_spec.rb
+++ b/spec/bundler/bundler/cli_spec.rb
@@ -251,8 +251,10 @@ def out_with_macos_man_workaround
 
       context "running a parseable command" do
         it "prints no warning" do
+          bundle "config set foo value", env: { "BUNDLER_VERSION" => bundler_version }
           bundle "config get --parseable foo", env: { "BUNDLER_VERSION" => bundler_version }
-          expect(stdboth).to eq ""
+          expect(out).to eq "foo=value"
+          expect(err).to eq ""
 
           bundle "platform --ruby", env: { "BUNDLER_VERSION" => bundler_version }, raise_on_error: false
           expect(stdboth).to eq "Could not locate Gemfile"
diff --git a/spec/bundler/commands/config_spec.rb b/spec/bundler/commands/config_spec.rb
index 5cafbe346810bc..e8ab32ca5da12b 100644
--- a/spec/bundler/commands/config_spec.rb
+++ b/spec/bundler/commands/config_spec.rb
@@ -313,9 +313,10 @@
 
   describe "parseable option" do
     it "prints an empty string" do
-      bundle "config get foo --parseable"
+      bundle "config get foo --parseable", raise_on_error: false
 
       expect(out).to eq ""
+      expect(last_command).to be_failure
     end
 
     it "only prints the value of the config" do
@@ -501,8 +502,9 @@
     it "get" do
       ENV["BUNDLE_BAR"] = "bar_val"
 
-      bundle "config get foo"
+      bundle "config get foo", raise_on_error: false
       expect(out).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(last_command).to be_failure
 
       ENV["BUNDLE_FOO"] = "foo_val"
 
@@ -547,7 +549,8 @@
 
       bundle "config unset foo"
       expect(out).to eq ""
-      expect(bundle("config get foo")).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(bundle("config get foo", raise_on_error: false)).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(last_command).to be_failure
 
       bundle "config set --local foo 1"
       bundle "config set --global foo 2"
@@ -557,7 +560,8 @@
       expect(bundle("config get foo")).to eq "Settings for `foo` in order of priority. The top value will be used\nSet for the current user (#{home(".bundle/config")}): \"2\""
       bundle "config unset foo --global"
       expect(out).to eq ""
-      expect(bundle("config get foo")).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(bundle("config get foo", raise_on_error: false)).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(last_command).to be_failure
 
       bundle "config set --local foo 1"
       bundle "config set --global foo 2"
@@ -567,7 +571,8 @@
       expect(bundle("config get foo")).to eq "Settings for `foo` in order of priority. The top value will be used\nSet for your local app (#{bundled_app(".bundle/config")}): \"1\""
       bundle "config unset foo --local"
       expect(out).to eq ""
-      expect(bundle("config get foo")).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(bundle("config get foo", raise_on_error: false)).to eq "Settings for `foo` in order of priority. The top value will be used\nYou have not configured a value for `foo`"
+      expect(last_command).to be_failure
 
       bundle "config unset foo --local --global", raise_on_error: false
       expect(last_command).to be_failure
@@ -600,7 +605,7 @@
       bundle "config set gemfile foo/bar_gemfile"
 
       bundle "config unset gemfile"
-      bundle "config get gemfile"
+      bundle "config get gemfile", raise_on_error: false
 
       expect(out).to include("You have not configured a value for `gemfile`")
       expect(File.read(bundled_app(".bundle/config"))).not_to include("BUNDLE_GEMFILE")
diff --git a/spec/bundler/other/major_deprecation_spec.rb b/spec/bundler/other/major_deprecation_spec.rb
index 6eeb70abe50b6f..ab7589d698d2ed 100644
--- a/spec/bundler/other/major_deprecation_spec.rb
+++ b/spec/bundler/other/major_deprecation_spec.rb
@@ -290,7 +290,7 @@
 
     describe "old get interface" do
       before do
-        bundle "config waka"
+        bundle "config waka", raise_on_error: false
       end
 
       it "warns", bundler: "4" do