diff --git a/libboost-1.86.0-python-numpy-2.1.1.patch b/libboost-1.86.0-python-numpy-2.1.1.patch
new file mode 100644
index 0000000..f4f029a
--- /dev/null
+++ b/libboost-1.86.0-python-numpy-2.1.1.patch
@@ -0,0 +1,28 @@
+From 33ac06ca59a68266d3d26edf08205d31ddab4a6c Mon Sep 17 00:00:00 2001
+From: Alexis DUBURCQ <alexis.duburcq@gmail.com>
+Date: Fri, 15 Mar 2024 14:10:16 +0100
+Subject: [PATCH] Support numpy 2.0.0b1
+
+---
+ src/numpy/dtype.cpp | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/src/numpy/dtype.cpp b/src/numpy/dtype.cpp
+index 88a20a27b5..da30d1927b 100644
+--- a/src/numpy/dtype.cpp
++++ b/src/numpy/dtype.cpp
+@@ -98,7 +98,13 @@ python::detail::new_reference dtype::convert(object const & arg, bool align)
+   return python::detail::new_reference(reinterpret_cast<PyObject*>(obj));
+ }
+ 
+-int dtype::get_itemsize() const { return reinterpret_cast<PyArray_Descr*>(ptr())->elsize;}
++int dtype::get_itemsize() const {
++#if NPY_ABI_VERSION < 0x02000000
++  return reinterpret_cast<PyArray_Descr*>(ptr())->elsize;
++#else
++  return PyDataType_ELSIZE(reinterpret_cast<PyArray_Descr*>(ptr()));
++#endif
++}
+ 
+ bool equivalent(dtype const & a, dtype const & b) {
+     // On Windows x64, the behaviour described on 
diff --git a/libboost.spec b/libboost.spec
index 18d8ce4..f0f7d82 100644
--- a/libboost.spec
+++ b/libboost.spec
@@ -1,8 +1,8 @@
 %define pckver %(echo %version | tr . _)
 %define pckmajver %(echo %version | cut -d. -f1-2 | tr . _)
 Name:          libboost
-Version:       1.85.0
-Release:       4mamba
+Version:       1.86.0
+Release:       1mamba
 Summary:       Free peer-reviewed portable C++ source libraries
 Group:         System/Libraries
 Vendor:        openmamba
@@ -10,6 +10,7 @@ Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://www.boost.org/
 Source:        https://boostorg.jfrog.io/artifactory/main/release/%{version}/source/boost_%{pckver}.tar.bz2
+Patch0:        libboost-1.86.0-python-numpy-2.1.1.patch
 License:       Boost Software License
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -77,6 +78,7 @@ This package contains then Boost.python library for Python 3.
 %setup -q -n boost_%{pckver}
 #-D -T
 #:<< _EOF
+%patch 0 -p1 -d libs/python -b .python-numpy-2.1.1
 
 %build
 #:<< _EOF
@@ -142,8 +144,6 @@ done
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
-%post -p /sbin/ldconfig
-%postun -p /sbin/ldconfig
 
 %files
 %defattr(-,root,root)
@@ -172,6 +172,9 @@ done
 %{_libdir}/libboost_numpy311.so.*
 
 %changelog
+* Sun Sep 08 2024 Automatic Build System <autodist@openmamba.org> 1.86.0-1mamba
+- automatic version update by autodist
+
 * Mon May 06 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 1.85.0-4mamba
 - remove and provide/obsolete boost-jam requirement