diff --git a/LEGAL b/LEGAL
index cb1b867c23bd81..2777aa2c148bb8 100644
--- a/LEGAL
+++ b/LEGAL
@@ -713,9 +713,8 @@ mentioned below.
     Copyright (c) 2022 James Edward Anhalt III - https://github.com/jeaiii/itoa
 
     {MIT License}[rdoc-ref:@MIT+License]
-  
 
-[ext/json/ext/vendor/ryu.h]
+[ext/json/vendor/ryu.h]
   This file is adapted from the Ryu algorithm by Ulf Adams https://github.com/ulfjack/ryu.
   It is dual-licensed under {Apache License 2.0}[rdoc-ref:@Apache+License+2.0] OR
   {Boost Software License 1.0}[rdoc-ref:@Boost+Software+License+1.0].
@@ -1071,21 +1070,21 @@ mentioned below.
 
 >>>
       Boost Software License - Version 1.0 - August 17th, 2003
-    
+
       Permission is hereby granted, free of charge, to any person or organization
       obtaining a copy of the software and accompanying documentation covered by
       this license (the "Software") to use, reproduce, display, distribute,
       execute, and transmit the Software, and to prepare derivative works of the
       Software, and to permit third-parties to whom the Software is furnished to
       do so, all subject to the following:
-    
+
       The copyright notices in the Software and this entire statement, including
       the above license grant, this restriction and the following disclaimer,
       must be included in all copies of the Software, in whole or in part, and
       all derivative works of the Software, unless such copies or derivative
       works are solely in the form of machine-executable object code generated by
       a source language processor.
-    
+
       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
       IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
       FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
diff --git a/lib/rubygems/commands/rebuild_command.rb b/lib/rubygems/commands/rebuild_command.rb
index 77a474ef1ddf32..23b9d7b3ba925b 100644
--- a/lib/rubygems/commands/rebuild_command.rb
+++ b/lib/rubygems/commands/rebuild_command.rb
@@ -1,6 +1,5 @@
 # frozen_string_literal: true
 
-require "date"
 require "digest"
 require "fileutils"
 require "tmpdir"
diff --git a/spec/bundled_gems_spec.rb b/spec/bundled_gems_spec.rb
index c2a655929ab7bf..e86b5ce6e8c0a7 100644
--- a/spec/bundled_gems_spec.rb
+++ b/spec/bundled_gems_spec.rb
@@ -113,7 +113,7 @@ def script(code, options = {})
       require "active_support/all"
     RUBY
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
     expect(err).to include(/lib\/active_support\/all\.rb:1/)
   end
 
@@ -159,7 +159,7 @@ def script(code, options = {})
 
     bundle "exec ruby script.rb"
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
     expect(err).to include(/script\.rb:8/)
   end
 
@@ -177,7 +177,7 @@ def script(code, options = {})
 
     bundle "exec ./script.rb"
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
     expect(err).to include(/script\.rb:9/)
   end
 
@@ -186,7 +186,7 @@ def script(code, options = {})
     create_file("Gemfile", "source 'https://rubygems.org'")
     bundle "exec ruby -r./stub -ropenssl -e ''"
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
   end
 
   it "Show warning when warn is not the standard one in the current scope" do
@@ -209,7 +209,7 @@ def my
       My.my
     RUBY
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
     expect(err).to include(/-e:19/)
   end
 
@@ -251,7 +251,7 @@ def my
       require Gem::BUNDLED_GEMS::ARCHDIR + 'openssl'
     RUBY
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
     # TODO: We should assert caller location like below:
     # test_warn_bootsnap.rb:14: warning: ...
   end
@@ -320,7 +320,7 @@ def my
     create_file("Gemfile", "source 'https://rubygems.org'")
     bundle "exec ruby script.rb"
 
-    expect(err).to include(/openssl used to be loaded from (.*) since Ruby 4.0.0/)
+    expect(err).to include(/openssl used to be loaded from (.*) since Ruby #{RUBY_VERSION}/)
     expect(err).to include(/script\.rb:13/)
   end
 
diff --git a/tool/rbs_skip_tests_windows b/tool/rbs_skip_tests_windows
index 35e78e237f1668..db12c69419e88e 100644
--- a/tool/rbs_skip_tests_windows
+++ b/tool/rbs_skip_tests_windows
@@ -106,8 +106,6 @@ test_new(TempfileSingletonTest)
 # Errno::EACCES: Permission denied @ apply2files - C:/a/_temp/d20250813-10156-f8z9pn/test.gz
 test_open(ZlibGzipReaderSingletonTest)
 
-test_reachable_objects_from_root(ObjectSpaceTest) To avoid NoMemoryError with test-unit 3.7.5
-
 # Errno::EACCES: Permission denied @ rb_file_s_rename
 # D:/a/ruby/ruby/src/lib/rubygems/util/atomic_file_writer.rb:42:in 'File.rename'
 test_write_binary(GemSingletonTest)