diff --git a/package/llvm-project/compiler-rt/0001-libc-Fix-detection-of-cfloat128.patch b/package/llvm-project/compiler-rt/0001-libc-Fix-detection-of-cfloat128.patch
deleted file mode 100644
index 4587dbfd7d..0000000000
--- a/package/llvm-project/compiler-rt/0001-libc-Fix-detection-of-cfloat128.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-From 4e1af872f819782bd233ab21953ab92cf36ff9c3 Mon Sep 17 00:00:00 2001
-From: Bernd Kuhls <bernd@kuhls.net>
-Date: Mon, 9 Mar 2026 19:07:10 +0100
-Subject: [PATCH] [libc] Fix detection of cfloat128
-
-Building compiler-rt with aarch64-buildroot-linux-gnu-gcc 15.2 causes a
-build error:
-
-compiler-rt-22.1.0/cmake/Modules/../../libc/src/__support/CPP/type_traits/is_complex.h:44:31:
- error: 'cfloat128' was not declared in this scope; did you mean 'float128'? [-Wtemplate-body]
-
-According to https://gcc.gnu.org/onlinedocs/gcc-15.2.0/gcc/Floating-Types.html
-__float128 is not available on aarch64.
-
-Analyzing the gcc defines for aarch64 seems to prove it:
-
-$ aarch64-buildroot-linux-gnu-gcc -v
-Target: aarch64-buildroot-linux-gnu
-gcc version 15.2.0 (Buildroot 2026.02-114-gdadec9da56)
-
-$ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep __GCC_IEC_559_COMPLEX
-  #define __GCC_IEC_559_COMPLEX 2
-
-$ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep __STDC_IEC_60559_COMPLEX__
-  #define __STDC_IEC_60559_COMPLEX__ 201404L
-
-$ echo | aarch64-buildroot-linux-gnu-gcc -dM -E - | grep -i float128
-$
-
-In contrast gcc for x86_64:
-
-$ x86_64-buildroot-linux-gnu-gcc -v
-Target: x86_64-buildroot-linux-gnu
-gcc version 15.2.0 (Buildroot 2026.02-112-gd12ac02486)
-
-$ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep __GCC_IEC_559_COMPLEX
-  #define __GCC_IEC_559_COMPLEX 2
-
-$ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep __STDC_IEC_60559_COMPLEX__
-  #define __STDC_IEC_60559_COMPLEX__ 201404L
-
-$ echo | x86_64-buildroot-linux-gnu-gcc -dM -E - | grep -i float128
-  #define __SIZEOF_FLOAT128__ 16
-
-This patch changes the or-condition to an and-condition for
-__STDC_IEC_60559_COMPLEX__ and __SIZEOF_FLOAT128__.
-
-Upstream: https://github.com/llvm/llvm-project/pull/185486
-
-Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
----
- libc/include/llvm-libc-macros/cfloat128-macros.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/libc/include/llvm-libc-macros/cfloat128-macros.h b/libc/include/llvm-libc-macros/cfloat128-macros.h
-index 5f28cfa21aae..ff4aa530685d 100644
---- a/libc/include/llvm-libc-macros/cfloat128-macros.h
-+++ b/libc/include/llvm-libc-macros/cfloat128-macros.h
-@@ -27,7 +27,7 @@
- #define LIBC_TYPES_HAS_CFLOAT128
- #endif
- #elif defined(__GNUC__)
--#if (defined(__STDC_IEC_60559_COMPLEX__) || defined(__SIZEOF_FLOAT128__)) &&   \
-+#if (defined(__STDC_IEC_60559_COMPLEX__) && defined(__SIZEOF_FLOAT128__)) &&   \
-     (__GNUC__ >= 13 || (!defined(__cplusplus)))
- #define LIBC_TYPES_HAS_CFLOAT128
- #endif
--- 
-2.47.3
-
diff --git a/package/llvm-project/llvm-project.hash b/package/llvm-project/llvm-project.hash
index 96cdd76c92..35aa544014 100644
--- a/package/llvm-project/llvm-project.hash
+++ b/package/llvm-project/llvm-project.hash
@@ -1,4 +1,4 @@
-# From https://github.com/llvm/llvm-project/releases/tag/llvmorg-22.1.8
-sha256  922f1817a0df7b1489272d18134ee0087a8b068828f87ac63b9861b1a9965888  llvm-project-22.1.8.src.tar.xz
+# From https://github.com/llvm/llvm-project/releases/tag/llvmorg-23.1.0
+sha256  ab1f0e3ec52448c33e8782eaf0422504b87c7b016b22514653ee0d8fcee479ff  llvm-project-23.1.0.src.tar.xz
 # locally calculated
 sha256  8d85c1057d742e597985c7d4e6320b015a9139385cff4cbae06ffc0ebe89afee  LICENSE.TXT
diff --git a/package/llvm-project/llvm-project.mk b/package/llvm-project/llvm-project.mk
index 5cbbda6e06..31b2a4dae7 100644
--- a/package/llvm-project/llvm-project.mk
+++ b/package/llvm-project/llvm-project.mk
@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-LLVM_PROJECT_VERSION_MAJOR = 22
-LLVM_PROJECT_VERSION = $(LLVM_PROJECT_VERSION_MAJOR).1.8
+LLVM_PROJECT_VERSION_MAJOR = 23
+LLVM_PROJECT_VERSION = $(LLVM_PROJECT_VERSION_MAJOR).1.0
 LLVM_PROJECT_SITE = https://github.com/llvm/llvm-project/releases/download/llvmorg-$(LLVM_PROJECT_VERSION)
 LLVM_PROJECT_SOURCE = llvm-project-$(LLVM_VERSION).src.tar.xz