diff --git a/manifest/armv7l/l/llvm20_build.filelist b/manifest/armv7l/l/llvm20_build.filelist
index 2dbcebe85..3d7ba75a0 100644
--- a/manifest/armv7l/l/llvm20_build.filelist
+++ b/manifest/armv7l/l/llvm20_build.filelist
@@ -4782,7 +4782,7 @@
 /usr/local/lib/libclang-cpp.so.20.1
 /usr/local/lib/libclang.so
 /usr/local/lib/libclang.so.20.1
-/usr/local/lib/libclang.so.20.1.0
+/usr/local/lib/libclang.so.20.1.1
 /usr/local/lib/libclangAPINotes.a
 /usr/local/lib/libclangARCMigrate.a
 /usr/local/lib/libclangAST.a
@@ -4880,7 +4880,7 @@
 /usr/local/lib/liblldWasm.a
 /usr/local/lib/liblldb.so
 /usr/local/lib/liblldb.so.20.1
-/usr/local/lib/liblldb.so.20.1.0
+/usr/local/lib/liblldb.so.20.1.1
 /usr/local/lib/liblldbIntelFeatures.so
 /usr/local/lib/liblldbIntelFeatures.so.20.1
 /usr/local/lib/libscanbuild/__init__.py
diff --git a/manifest/armv7l/l/llvm20_dev.filelist b/manifest/armv7l/l/llvm20_dev.filelist
index b70c1bc9f..04720aad4 100644
--- a/manifest/armv7l/l/llvm20_dev.filelist
+++ b/manifest/armv7l/l/llvm20_dev.filelist
@@ -4778,7 +4778,7 @@
 /usr/local/lib/libclang-cpp.so.20.1
 /usr/local/lib/libclang.so
 /usr/local/lib/libclang.so.20.1
-/usr/local/lib/libclang.so.20.1.0
+/usr/local/lib/libclang.so.20.1.1
 /usr/local/lib/libclangAPINotes.a
 /usr/local/lib/libclangARCMigrate.a
 /usr/local/lib/libclangAST.a
@@ -4876,7 +4876,7 @@
 /usr/local/lib/liblldWasm.a
 /usr/local/lib/liblldb.so
 /usr/local/lib/liblldb.so.20.1
-/usr/local/lib/liblldb.so.20.1.0
+/usr/local/lib/liblldb.so.20.1.1
 /usr/local/lib/liblldbIntelFeatures.so
 /usr/local/lib/liblldbIntelFeatures.so.20.1
 /usr/local/lib/libscanbuild/__init__.py
diff --git a/manifest/i686/l/llvm20_build.filelist b/manifest/i686/l/llvm20_build.filelist
index 80613d305..77cbfa7cf 100644
--- a/manifest/i686/l/llvm20_build.filelist
+++ b/manifest/i686/l/llvm20_build.filelist
@@ -4777,7 +4777,7 @@
 /usr/local/lib/libclang-cpp.so.20.1
 /usr/local/lib/libclang.so
 /usr/local/lib/libclang.so.20.1
-/usr/local/lib/libclang.so.20.1.0
+/usr/local/lib/libclang.so.20.1.1
 /usr/local/lib/libclangAPINotes.a
 /usr/local/lib/libclangARCMigrate.a
 /usr/local/lib/libclangAST.a
@@ -4875,7 +4875,7 @@
 /usr/local/lib/liblldWasm.a
 /usr/local/lib/liblldb.so
 /usr/local/lib/liblldb.so.20.1
-/usr/local/lib/liblldb.so.20.1.0
+/usr/local/lib/liblldb.so.20.1.1
 /usr/local/lib/liblldbIntelFeatures.so
 /usr/local/lib/liblldbIntelFeatures.so.20.1
 /usr/local/lib/libscanbuild/__init__.py
diff --git a/manifest/i686/l/llvm20_dev.filelist b/manifest/i686/l/llvm20_dev.filelist
index 7351cbc46..8beaca9fe 100644
--- a/manifest/i686/l/llvm20_dev.filelist
+++ b/manifest/i686/l/llvm20_dev.filelist
@@ -4773,7 +4773,7 @@
 /usr/local/lib/libclang-cpp.so.20.1
 /usr/local/lib/libclang.so
 /usr/local/lib/libclang.so.20.1
-/usr/local/lib/libclang.so.20.1.0
+/usr/local/lib/libclang.so.20.1.1
 /usr/local/lib/libclangAPINotes.a
 /usr/local/lib/libclangARCMigrate.a
 /usr/local/lib/libclangAST.a
@@ -4871,7 +4871,7 @@
 /usr/local/lib/liblldWasm.a
 /usr/local/lib/liblldb.so
 /usr/local/lib/liblldb.so.20.1
-/usr/local/lib/liblldb.so.20.1.0
+/usr/local/lib/liblldb.so.20.1.1
 /usr/local/lib/liblldbIntelFeatures.so
 /usr/local/lib/liblldbIntelFeatures.so.20.1
 /usr/local/lib/libscanbuild/__init__.py
diff --git a/manifest/x86_64/l/llvm20_build.filelist b/manifest/x86_64/l/llvm20_build.filelist
index a95cdaeb7..d0bdab1e3 100644
--- a/manifest/x86_64/l/llvm20_build.filelist
+++ b/manifest/x86_64/l/llvm20_build.filelist
@@ -4821,7 +4821,7 @@
 /usr/local/lib64/libclang-cpp.so.20.1
 /usr/local/lib64/libclang.so
 /usr/local/lib64/libclang.so.20.1
-/usr/local/lib64/libclang.so.20.1.0
+/usr/local/lib64/libclang.so.20.1.1
 /usr/local/lib64/libclangAPINotes.a
 /usr/local/lib64/libclangARCMigrate.a
 /usr/local/lib64/libclangAST.a
@@ -4916,7 +4916,7 @@
 /usr/local/lib64/liblldWasm.a
 /usr/local/lib64/liblldb.so
 /usr/local/lib64/liblldb.so.20.1
-/usr/local/lib64/liblldb.so.20.1.0
+/usr/local/lib64/liblldb.so.20.1.1
 /usr/local/lib64/liblldbIntelFeatures.so
 /usr/local/lib64/liblldbIntelFeatures.so.20.1
 /usr/local/libexec/analyze-c++
diff --git a/manifest/x86_64/l/llvm20_dev.filelist b/manifest/x86_64/l/llvm20_dev.filelist
index b36ff16df..a2fce4beb 100644
--- a/manifest/x86_64/l/llvm20_dev.filelist
+++ b/manifest/x86_64/l/llvm20_dev.filelist
@@ -4817,7 +4817,7 @@
 /usr/local/lib64/libclang-cpp.so.20.1
 /usr/local/lib64/libclang.so
 /usr/local/lib64/libclang.so.20.1
-/usr/local/lib64/libclang.so.20.1.0
+/usr/local/lib64/libclang.so.20.1.1
 /usr/local/lib64/libclangAPINotes.a
 /usr/local/lib64/libclangARCMigrate.a
 /usr/local/lib64/libclangAST.a
@@ -4912,7 +4912,7 @@
 /usr/local/lib64/liblldWasm.a
 /usr/local/lib64/liblldb.so
 /usr/local/lib64/liblldb.so.20.1
-/usr/local/lib64/liblldb.so.20.1.0
+/usr/local/lib64/liblldb.so.20.1.1
 /usr/local/lib64/liblldbIntelFeatures.so
 /usr/local/lib64/liblldbIntelFeatures.so.20.1
 /usr/local/libexec/analyze-c++
diff --git a/packages/libclc.rb b/packages/libclc.rb
index 854e3e373..8ef6e535f 100644
--- a/packages/libclc.rb
+++ b/packages/libclc.rb
@@ -7,7 +7,7 @@ Package.load_package("#{__dir__}/llvm20_build.rb")
 class Libclc < Package
   description 'Library requirements of the OpenCL C programming language'
   homepage 'https://libclc.llvm.org/'
-  version '20.1.0'
+  version '20.1.1'
   # When upgrading llvm*_build, be sure to upgrade llvm_lib*, llvm_dev*, libclc, and openmp in tandem.
   puts "#{self} version differs from llvm version #{Llvm20_build.version}".orange if version != Llvm20_build.version
   license 'Apache-2.0-with-LLVM-exceptions, UoI-NCSA, BSD, public-domain, rc, Apache-2.0 and MIT'
@@ -17,9 +17,9 @@ class Libclc < Package
   binary_compression 'tar.zst'
 
   binary_sha256({
-    aarch64: 'c6efc090063d0e1d8eee1c7e989d2036b6fbcfaf57d436b651c048d4fcfecc85',
-     armv7l: 'c6efc090063d0e1d8eee1c7e989d2036b6fbcfaf57d436b651c048d4fcfecc85',
-     x86_64: 'f10ad8c159e96697b5e94b27deb240635550cfc31aa1b10f6b82d054a18416df'
+    aarch64: '706ad128ee56b25ae8b9fc10c8dbe64625325fdeabe54b77a1d5d7b170c33b16',
+     armv7l: '706ad128ee56b25ae8b9fc10c8dbe64625325fdeabe54b77a1d5d7b170c33b16',
+     x86_64: 'b5cd74e34920f1125952815548dea846f5b03510dd62a68f0cc2aa79992985f4'
   })
 
   depends_on 'llvm20_dev' => :build
diff --git a/packages/llvm20_build.rb b/packages/llvm20_build.rb
index e1bb80759..c6ba6b578 100644
--- a/packages/llvm20_build.rb
+++ b/packages/llvm20_build.rb
@@ -4,7 +4,7 @@ class Llvm20_build < Package
   @llvm_projects_to_build = ARCH == 'x86_64' ? 'bolt;clang;clang-tools-extra;compiler-rt;lld;lldb;polly;pstl' : 'clang;clang-tools-extra;compiler-rt;lld;lldb;polly;pstl'
   description "The LLVM Project is a collection of modular and reusable compiler and toolchain technologies. The packages included are: #{@llvm_projects_to_build.gsub(';', ' ')}"
   homepage 'https://llvm.org/'
-  version '20.1.0'
+  version '20.1.1'
   # When upgrading llvm*_build, be sure to upgrade llvm_lib*, llvm_dev*, libclc, and openmp in tandem.
   license 'Apache-2.0-with-LLVM-exceptions, UoI-NCSA, BSD, public-domain, rc, Apache-2.0 and MIT'
   compatibility 'all'
@@ -13,10 +13,10 @@ class Llvm20_build < Package
   binary_compression 'tar.zst'
 
   binary_sha256({
-    aarch64: '7518f6c15d13866f9144a231b10cdc6b1995067d859651c03ff9e733a015d84a',
-     armv7l: '7518f6c15d13866f9144a231b10cdc6b1995067d859651c03ff9e733a015d84a',
-       i686: 'ae2f5da8b17d4b5c77afe6b3b057d6bdf204e8465600cf5cae65334ed2cacc4a',
-     x86_64: '1d467898066e233a33b5794c8549868629cc7ecd8942daf4bf491f7b6093636d'
+    aarch64: '6267c0a5aaf28abca8c29af9ca0466f2d5251c16f0808538a8833d2f46fcd23e',
+     armv7l: '6267c0a5aaf28abca8c29af9ca0466f2d5251c16f0808538a8833d2f46fcd23e',
+       i686: 'afc1ef39052899ce05ef7ee06185fd55c0e3f7c68ff86615ae876aa8b577b212',
+     x86_64: '16e01fcc38fd0c52b054b4613ea2ad711bb36b4d28093157ba1ca49d213dd21b'
   })
 
   depends_on 'gcc_lib' # R
@@ -181,13 +181,13 @@ class Llvm20_build < Package
   end
 
   # preserve for check, skip check for current version
-  def self.check
-    Dir.chdir('builddir') do
-      system 'ninja check-llvm || true'
-      system 'ninja check-clang || true'
-      system 'ninja check-lld || true'
-    end
-  end
+  # def self.check
+  #   Dir.chdir('builddir') do
+  #     system 'ninja check-llvm || true'
+  #     system 'ninja check-clang || true'
+  #     system 'ninja check-lld || true'
+  #   end
+  # end
 
   def self.postinstall
     puts
diff --git a/packages/llvm20_dev.rb b/packages/llvm20_dev.rb
index 09c5a6645..91fdd0533 100644
--- a/packages/llvm20_dev.rb
+++ b/packages/llvm20_dev.rb
@@ -4,7 +4,7 @@ Package.load_package("#{__dir__}/llvm20_build.rb")
 class Llvm20_dev < Package
   description 'LLVM: Everything except libLLVM & llvm-strip'
   homepage Llvm20_build.homepage
-  version '20.1.0'
+  version '20.1.1'
   # When upgrading llvm*_build, be sure to upgrade llvm_lib*, llvm_dev*, libclc, and openmp in tandem.
   puts "#{self} version differs from llvm version #{Llvm20_build.version}".orange if version != Llvm20_build.version
   license Llvm20_build.license
@@ -13,10 +13,10 @@ class Llvm20_dev < Package
   binary_compression 'tar.zst'
 
   binary_sha256({
-    aarch64: 'dc29a609a812a7a4490c370f3c51e5b7cae7462606e1267d558f7cccc93c62be',
-     armv7l: 'dc29a609a812a7a4490c370f3c51e5b7cae7462606e1267d558f7cccc93c62be',
-       i686: 'd5d16f99a336df842185a02404b4efbb91e726542b16c3323387c6bca5285455',
-     x86_64: 'b65718fe64d3c3e5c888cd3fbb4a09575ed69e4ba22c714a6c290e2344f6b276'
+    aarch64: '6995c9f4e42f1ba519d0b0b9b8a952d5aca7e17466a0cf77f052d0146efb1d81',
+     armv7l: '6995c9f4e42f1ba519d0b0b9b8a952d5aca7e17466a0cf77f052d0146efb1d81',
+       i686: '98fb4a546e7dfe7d1e70d5c1bd4c4bc103340532d2251527472825053bf5cc61',
+     x86_64: '15e2076236e799e5ac6ff836a57a13ee2e0ca7c90c413d3ce5849865eb81e4de'
   })
 
   depends_on 'gcc_lib' # R
diff --git a/packages/llvm20_lib.rb b/packages/llvm20_lib.rb
index 2283fb377..1c9158311 100644
--- a/packages/llvm20_lib.rb
+++ b/packages/llvm20_lib.rb
@@ -4,7 +4,7 @@ Package.load_package("#{__dir__}/llvm20_build.rb")
 class Llvm20_lib < Package
   description 'LibLLVM and llvm-strip'
   homepage Llvm20_build.homepage
-  version '20.1.0'
+  version '20.1.1'
   # When upgrading llvm*_build, be sure to upgrade llvm_lib*, llvm_dev*, libclc, and openmp in tandem.
   puts "#{self} version differs from llvm version #{Llvm20_build.version}".orange if version != Llvm20_build.version
   license Llvm20_build.license
@@ -13,10 +13,10 @@ class Llvm20_lib < Package
   binary_compression 'tar.zst'
 
   binary_sha256({
-    aarch64: '2e4d04dfea09b81876d97b1e61c2e79fc8f8d9ae15bb05ecbb1c1926e76586cb',
-     armv7l: '2e4d04dfea09b81876d97b1e61c2e79fc8f8d9ae15bb05ecbb1c1926e76586cb',
-       i686: '12979a9e7112597d1a93c0174f57fe1612e356e56da18e47d6c767e37ca5b47b',
-     x86_64: '827f1da7c81ddd361b9fdd39909f31c574529406e58cbcfaef8b7773392449c0'
+    aarch64: 'b0b1cfc5b7ea58e59814d5e20563572dc203f3e84286d8add875effc36d841a6',
+     armv7l: 'b0b1cfc5b7ea58e59814d5e20563572dc203f3e84286d8add875effc36d841a6',
+       i686: '38307d662206b22a7d90ed5948f7188c604a161c6ee8ef7bd8ab34bbed49db8e',
+     x86_64: '595cbd3332124365a158d62af0b1103391c153e416a74333de6fecfdb004128f'
   })
 
   depends_on 'gcc_lib' # R
diff --git a/packages/openmp.rb b/packages/openmp.rb
index 9b56bf0a1..06b45e19b 100644
--- a/packages/openmp.rb
+++ b/packages/openmp.rb
@@ -7,7 +7,7 @@ Package.load_package("#{__dir__}/llvm20_build.rb")
 class Openmp < Package
   description 'LLVM OpenMP Runtime Library'
   homepage 'https://openmp.llvm.org/'
-  version '20.1.0'
+  version '20.1.1'
   # When upgrading llvm_build*, be sure to upgrade llvm_lib*, llvm_dev*, libclc, and openmp in tandem.
   puts "#{self} version differs from llvm version #{Llvm20_build.version}".orange if version != Llvm20_build.version
   license 'Apache-2.0-with-LLVM-exceptions, UoI-NCSA, BSD, public-domain, rc, Apache-2.0 and MIT'
@@ -17,10 +17,10 @@ class Openmp < Package
   binary_compression 'tar.zst'
 
   binary_sha256({
-    aarch64: 'ed9d0fe0dac4215d2d16f471042b46ef9d968076770b826090a574887690eb3d',
-     armv7l: 'ed9d0fe0dac4215d2d16f471042b46ef9d968076770b826090a574887690eb3d',
-       i686: '17d23516f44d2d852efb603a64be325a4a8cbe3d11de0fdb28969fe04cc2ef10',
-     x86_64: '738d2a514c65273469d5402a47c588e17ae6ecde451846e93e5ae7671b8cdc69'
+    aarch64: 'bf271d1b4549299c14ccf4945eb2ee518d440801cdf0bcebc70e30aaa0251e56',
+     armv7l: 'bf271d1b4549299c14ccf4945eb2ee518d440801cdf0bcebc70e30aaa0251e56',
+       i686: '325a201ea2dcfe21be7e70d235034d39fd8f24803a4780a8a1798c81e365a4cc',
+     x86_64: '57c44f461e5b006bcb7289a39589430cffa55f215c3617b69df93f3b865728fb'
   })
 
   depends_on 'gcc_lib' # R