diff --git a/game/misc/simgear/actions.py b/game/misc/simgear/actions.py
index 05112765f1..df5e51a8e0 100644
--- a/game/misc/simgear/actions.py
+++ b/game/misc/simgear/actions.py
@@ -19,4 +19,4 @@ def build():
 def install():
     cmaketools.rawInstall("DESTDIR=%s" % get.installDIR())
 
-    #pisitools.dodoc("README*", "NEWS", "AUTHORS", "ChangeLog")
\ No newline at end of file
+    #pisitools.dodoc("README*", "NEWS", "AUTHORS", "ChangeLog")
diff --git a/programming/misc/boost/actions.py b/programming/misc/boost/actions.py
index b458d8d68d..3326bc861e 100644
--- a/programming/misc/boost/actions.py
+++ b/programming/misc/boost/actions.py
@@ -55,7 +55,7 @@ def install():
     shelltools.cd("..")
     
     # some packages need this library as : libboost_python3.so
-    pisitools.dosym("/usr/lib/libboost_python311.so.1.83.0", "/usr/lib/libboost_python3.so")
+    pisitools.dosym("/usr/lib/libboost_python311.so.1.87.0", "/usr/lib/libboost_python3.so")
 
     shelltools.touch("__init__.py")
     pisitools.insinto("/usr/lib/python3.11/site-packages/openmpi/boost", "__init__.py")
diff --git a/programming/misc/boost/files/boost-move-std-ns-begin-fix-for-gcc15.patch b/programming/misc/boost/files/boost-move-std-ns-begin-fix-for-gcc15.patch
new file mode 100644
index 0000000000..81daece730
--- /dev/null
+++ b/programming/misc/boost/files/boost-move-std-ns-begin-fix-for-gcc15.patch
@@ -0,0 +1,23 @@
+diff -Nuar a/boost/move/detail/std_ns_begin.hpp b/boost/move/detail/std_ns_begin.hpp
+--- a/boost/move/detail/std_ns_begin.hpp	2024-12-05 03:53:34.000000000 +0300
++++ b/boost/move/detail/std_ns_begin.hpp	2025-10-22 22:59:42.571774083 +0300
+@@ -9,6 +9,9 @@
+ #//
+ #//////////////////////////////////////////////////////////////////////////////
+ #
++#ifndef BOOST_CONFIG_HPP
++#  include <boost/config.hpp>
++#endif
+ #if defined(_LIBCPP_VERSION)
+    #if defined(__clang__)
+       #define BOOST_MOVE_STD_NS_GCC_DIAGNOSTIC_PUSH
+@@ -26,6 +29,9 @@
+ #elif defined(BOOST_DINKUMWARE_STDLIB)
+    #define BOOST_MOVE_STD_NS_BEG _STD_BEGIN
+    #define BOOST_MOVE_STD_NS_END _STD_END
++#else
++   #define BOOST_MOVE_STD_NS_BEG namespace std {
++   #define BOOST_MOVE_STD_NS_END }
+ #endif
+ 
+ #if defined(_MSC_VER) && (_MSC_VER >= 1915)
diff --git a/programming/misc/boost/pspec.xml b/programming/misc/boost/pspec.xml
index ef1e9466f6..18027f5072 100644
--- a/programming/misc/boost/pspec.xml
+++ b/programming/misc/boost/pspec.xml
@@ -31,7 +31,7 @@
         <Patches>
             <Patch>boost-1.81.0-phoenix-multiple-definitions.patch</Patch>
             <Patch>e7433ba54596da97cb7859455cd37ca140305a9c.patch</Patch>
-<!--             <Patch>5bd5bfb9.patch</Patch> -->
+            <Patch>boost-move-std-ns-begin-fix-for-gcc15.patch</Patch>
 <!--             <Patch>b29603fa.patch</Patch> -->
         </Patches>
     </Source>
@@ -103,6 +103,13 @@
     </Package>
 
     <History>
+        <Update release="21">
+            <Date>2025-10-22</Date>
+            <Version>1.87.0</Version>
+            <Comment>Rebuild.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
         <Update release="20">
             <Date>2025-02-23</Date>
             <Version>1.87.0</Version>