diff --git a/0001-Remove-requirement-for-accum-buffers.patch b/0001-Remove-requirement-for-accum-buffers.patch
deleted file mode 100644
index fa25745..0000000
--- a/0001-Remove-requirement-for-accum-buffers.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-From 914543a4f30de53cd33c2961e8791bf44d29aedf Mon Sep 17 00:00:00 2001
-From: Olivier Fourdan <ofourdan@redhat.com>
-Date: Wed, 4 Sep 2024 15:04:27 +0200
-Subject: [PATCH] Remove requirement for accum buffers
-
-Mesa's swrast with dril does not expose these anymore, so the tests
-fail trying to find a matching config.
----
- lib/opengl/test_case.rb | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/lib/opengl/test_case.rb b/lib/opengl/test_case.rb
-index e14dac3..4acf91e 100644
---- a/lib/opengl/test_case.rb
-+++ b/lib/opengl/test_case.rb
-@@ -39,7 +39,7 @@ class OpenGL::TestCase < MiniTest::Unit::TestCase
- 
-   glutInit
-   glutInitDisplayMode(GLUT_DEPTH | GLUT_DOUBLE | GLUT_RGBA | GLUT_STENCIL |
--                      GLUT_ACCUM | GLUT_ALPHA)
-+                      GLUT_ALPHA)
- 
-   def setup
-     glutInitWindowPosition 1, 1
--- 
-2.46.0
-
diff --git a/rubygem-opengl.spec b/rubygem-opengl.spec
index 1696b1c..f0c857c 100644
--- a/rubygem-opengl.spec
+++ b/rubygem-opengl.spec
@@ -14,7 +14,7 @@
 
 Name:		rubygem-%{gem_name}
 Version:	0.10.0
-Release:	39%{?dist}
+Release:	32%{?dist}
 
 Summary:	An OpenGL wrapper for Ruby
 # SPDX confirmed
@@ -31,9 +31,6 @@ Source1:	create-clean-opengl-gem.sh
 Source2:	GPLv1.rubygem_opengl
 # Fix for -Werror=incompatible-pointer-types
 Patch0:	opengl-0.10.0-pointer-types.patch
-# https://bugzilla.redhat.com/show_bug.cgi?id=2303995#c20
-# Mesa 24.2.2 swrast with dril does not expose accum buffers anymore
-Patch1:	0001-Remove-requirement-for-accum-buffers.patch
 
 # MRI (CRuby) only
 BuildRequires:	gcc
@@ -83,9 +80,6 @@ sed -i.minitest \
 	lib/opengl/test_case.rb
 
 %patch -P0 -p1 -b .types
-%if 0%{?fedora} >= 41
-%patch -P1 -p1 -b .accum
-%endif
 
 %build
 gem build %{gem_name}.gemspec
@@ -132,7 +126,7 @@ exit 0
 
 pushd .%{gem_instdir}
 
-EXPECTED_TEST_MSG="184 runs, 17\(38\|44\|45\) assertions, 6 failures, [12] errors, 14 skips"
+EXPECTED_TEST_MSG="184 runs, 174[45] assertions, 6 failures, [12] errors, 14 skips"
 
 export RUBYLIB=%{buildroot}%{gem_extdir_mri}/:$(pwd)/lib:$(pwd)
 # try twice
@@ -149,7 +143,7 @@ for trial in 1 2 ; do
 	STATUS_ON_FAILURE=false
 %endif
 %ifarch s390x
-%if 0%{?fedora} == 40
+%if 0%{?fedora} >= 40
 	# Currently mesa on F41, s390x is fairly broken
 	STATUS_ON_FAILURE=true
 %endif
@@ -175,29 +169,6 @@ popd
 %doc	%{gem_instdir}/utils/
 
 %changelog
-* Thu Jan 08 2026 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.10.0-39
-- Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_4.0
-
-* Fri Jul 25 2025 Fedora Release Engineering <releng@fedoraproject.org> - 0.10.0-38
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Sat Jan 18 2025 Fedora Release Engineering <releng@fedoraproject.org> - 0.10.0-37
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Wed Jan 08 2025 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.10.0-36
-- Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_3.4
-
-* Fri Sep 06 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.10.0-35
-- Adjust to mesa 24.2.2 change that swrast with dril does not expose
-  accum buffers anymore
-- Adjust test result message with recent mesa
-
-* Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 0.10.0-34
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
-
-* Fri Jul 12 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.10.0-33
-- Enable s390x test on F41 again
-
 * Mon Jun 17 2024 Mamoru TASAKA <mtasaka@fedoraproject.org> - 0.10.0-32
 - Use regex match for test result