Index: VirtualBox-7.1.4/configure
===================================================================
--- VirtualBox-7.1.4.orig/configure
+++ VirtualBox-7.1.4/configure
@@ -2185,7 +2185,7 @@ extern "C" int main(void)
 }
 EOF
   found=
-  SUPPYTHONLIBS="python2.7 python2.6 python3.1 python3.2 python3.3 python3.4 python3.4m python3.5 python3.5m python3.6 python3.6m python3.7 python3.7m python3.8 python3.9 python3.10 python3.11 python3.12"
+  SUPPYTHONLIBS="python2.7 python2.6 python3.1 python3.2 python3.3 python3.4 python3.4m python3.5 python3.5m python3.6 python3.6m python3.7 python3.7m python3.8 python3.9 python3.10 python3.11 python3.12 python3.13"
   for p in $PYTHONDIR; do
     for d in $SUPPYTHONLIBS; do
       for b in lib/x86_64-linux-gnu lib/i386-linux-gnu lib64 lib/64 lib; do
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/gen_python_deps.py
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/gen_python_deps.py
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/gen_python_deps.py
@@ -29,7 +29,7 @@ if sys.version_info >= (3, 10):
 else:
     from distutils.version import StrictVersion as Version
 
-versions = ["2.6", "2.7", "3.1", "3.2", "3.2m", "3.3", "3.3m", "3.4", "3.4m", "3.5", "3.5m", "3.6", "3.6m", "3.7", "3.7m", "3.8", "3.9", "3.10", "3.11", "3.12" ]
+versions = ["2.6", "2.7", "3.1", "3.2", "3.2m", "3.3", "3.3m", "3.4", "3.4m", "3.5", "3.5m", "3.6", "3.6m", "3.7", "3.7m", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13" ]
 prefixes = ["/usr", "/usr/local", "/opt", "/opt/local"]
 known = {}
 
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/Makefile.kmk
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/Makefile.kmk
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/Makefile.kmk
@@ -658,6 +658,27 @@ ifndef VBOX_ONLY_SDK
    endif
   endif
 
+  ifdef VBOX_PYTHON313_INC
+   #
+   # Python 3.13 version (implicitly with pymalloc)
+   #
+   DLLS += VBoxPython3_13
+   VBoxPython3_13_EXTENDS = VBoxPythonBase
+   VBoxPython3_13_EXTENDS_BY = appending
+   VBoxPython3_13_INCS    = $(VBOX_PYTHON313_INC)
+   VBoxPython3_13_LIBS    = $(VBOX_PYTHON313_LIB)
+
+   ifdef VBOX_WITH_32_ON_64_MAIN_API
+    ifdef VBOX_PYTHON313_LIB_X86
+     DLLS += VBoxPython3_13_x86
+     VBoxPython3_13_x86_EXTENDS = VBoxPythonBase_x86
+     VBoxPython3_13_x86_EXTENDS_BY = appending
+     VBoxPython3_13_x86_INCS  = $(VBOX_PYTHON313_INC)
+     VBoxPython3_13_x86_LIBS  = $(VBOX_PYTHON313_LIB_X86)
+    endif
+   endif
+  endif
+
   ifdef VBOX_PYTHONDEF_INC
    #
    # Python without versioning
@@ -700,7 +721,7 @@ ifndef VBOX_ONLY_SDK
   # TODO: ASSUMING that we don't need a different headers for pymalloc
   #       ('m' builds < 3.8) and CRT malloc.
   #
-  VBOX_PYTHON_LIMITED_API_VER := $(firstword $(foreach ver, 35 36 37 38 39 310 311 312   34 33 \
+  VBOX_PYTHON_LIMITED_API_VER := $(firstword $(foreach ver, 35 36 37 38 39 310 311 312 313 34 33 \
   			,$(if-expr defined(VBOX_PYTHON$(ver)_INC),$(ver),)$(if-expr defined(VBOX_PYTHON$(ver)M_INC),$(ver)M,)))
   ifneq ($(VBOX_PYTHON_LIMITED_API_VER),)
    DLLS += VBoxPython3
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyXPCOM.h
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/src/PyXPCOM.h
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyXPCOM.h
@@ -254,7 +254,9 @@ DECLINLINE(Py_ssize_t) PyUnicode_GET_SIZ
 # endif
 }
 
+# if (PY_VERSION_HEX <= 0x030d00f0)
 # define PyObject_CheckBuffer(pAllegedBuffer) PyObject_CheckReadBuffer(pAllegedBuffer)
+# endif
 
 # include <iprt/asm.h>
 DECLINLINE(Py_hash_t) _Py_HashPointer(void *p)
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyGInputStream.cpp
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/src/PyGInputStream.cpp
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyGInputStream.cpp
@@ -103,15 +103,16 @@ PyG_nsIInputStream::Read(char * buf, PRU
 	const char *methodName = "read";
 	nsresult nr = InvokeNativeViaPolicy(methodName, &ret, "i", count);
 	if (NS_SUCCEEDED(nr)) {
-#if 0 /* VBox: new buffer protocol (though I could use it for Py_LIMITED_API and ditch the warning, but cpython specific) */
+
+# if (PY_VERSION_HEX >= 0x030d00f0) /* VBox: new buffer protocol (though I could use it for Py_LIMITED_API and ditch the warning, but cpython specific) */
 		Py_buffer py_view;
 		if (PyObject_GetBuffer(ret, &py_view, PyBUF_SIMPLE) == 0) {
 			if (py_view.len <= count) {
 				count = py_view.len;
 			} else {
-				PyXPCOM_LogWarning("nsIInputStream::read() was asked for %d bytes, but the string returned is %d bytes - truncating!\n", count, py_size);
+				PyXPCOM_LogWarning("nsIInputStream::read() was asked for %d bytes, but the string returned is %d bytes - truncating!\n", count, py_view.len);
 			}
-			memcpy(buf, py_view.py_buf, count);
+			memcpy(buf, py_view.buf, count);
 			PyBuffer_Release(&py_view);
 			*_retval = count;
 		} else {
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyGBase.cpp
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/src/PyGBase.cpp
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyGBase.cpp
@@ -222,7 +222,11 @@ PyG_Base::AutoWrapPythonInstance(PyObjec
 		if (obIID==NULL) goto done;
 		args = Py_BuildValue("OOzi", ob, obIID, NULL, 0);
 		if (args==NULL) goto done;
+#if (PY_VERSION_HEX < 0x030d00f0)
 		wrap_ret = PyEval_CallObject(func, args);
+#else
+		wrap_ret = PyObject_Call(func, args, NULL);
+#endif
 		if (wrap_ret==NULL) goto done;
 		ok = Py_nsISupports::InterfaceFromPyObject(wrap_ret, iid, ppret, PR_FALSE, PR_FALSE);
 #ifdef DEBUG
@@ -570,7 +574,11 @@ static nsresult do_dispatch(
 		goto done;
 	}
 	// Make the call
+#if (PY_VERSION_HEX < 0x030d00f0)
 	*ppResult = PyEval_CallObject(method, args);
+#else
+	*ppResult = PyObject_Call(method, args, NULL);
+#endif
 	ret = *ppResult ? NS_OK : NS_ERROR_FAILURE;
 done:
 	Py_XDECREF(method);
Index: VirtualBox-7.1.4/Config.kmk
===================================================================
--- VirtualBox-7.1.4.orig/Config.kmk
+++ VirtualBox-7.1.4/Config.kmk
@@ -884,7 +884,7 @@ VBOX_WITH_JAVA_SUPPORT_IN_XPIDL ?=
 # unless VBOX_WITH_ONLY_PYTHON_LIMITED_API is overridden).
 VBOX_WITH_MULTIVERSION_PYTHON ?= 1
 # Only build the limited Python extension API version for 3.3 and later.
-VBOX_WITH_ONLY_PYTHON_LIMITED_API = 1
+# VBOX_WITH_ONLY_PYTHON_LIMITED_API = 1
 # Build the Validation Kit.
 VBOX_WITH_VALIDATIONKIT = 1
 # Include unit tests (testcases) on the Validation Kit .ISO
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/module/_xpcom.cpp
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/src/module/_xpcom.cpp
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/module/_xpcom.cpp
@@ -79,7 +79,19 @@
 #  define MANGLE_MODULE_INIT(a_Name)    RT_CONCAT(a_Name, MODULE_NAME_SUFFIX)
 # endif
 # if defined(VBOX_PYXPCOM_VERSIONED) && !defined(VBOX_PYXPCOM_MAJOR_VERSIONED)
-#  if   PY_VERSION_HEX >= 0x030a0000 && PY_VERSION_HEX < 0x030b0000
+#  if   PY_VERSION_HEX >= 0x030d0000 && PY_VERSION_HEX < 0x030e0000
+#   define MODULE_NAME    MANGLE_MODULE_NAME("VBoxPython3_13")
+#   define initVBoxPython MANGLE_MODULE_INIT(PyInit_VBoxPython3_13)
+
+#  elif   PY_VERSION_HEX >= 0x030c0000 && PY_VERSION_HEX < 0x030b0000
+#   define MODULE_NAME    MANGLE_MODULE_NAME("VBoxPython3_12")
+#   define initVBoxPython MANGLE_MODULE_INIT(PyInit_VBoxPython3_12)
+
+#  elif   PY_VERSION_HEX >= 0x030b0000 && PY_VERSION_HEX < 0x030a0000
+#   define MODULE_NAME    MANGLE_MODULE_NAME("VBoxPython3_11")
+#   define initVBoxPython MANGLE_MODULE_INIT(PyInit_VBoxPython3_11)
+
+#  elif   PY_VERSION_HEX >= 0x030a0000 && PY_VERSION_HEX < 0x030b0000
 #   define MODULE_NAME    MANGLE_MODULE_NAME("VBoxPython3_10")
 #   define initVBoxPython MANGLE_MODULE_INIT(PyInit_VBoxPython3_10)
 
Index: VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyIInputStream.cpp
===================================================================
--- VirtualBox-7.1.4.orig/src/libs/xpcom18a4/python/src/PyIInputStream.cpp
+++ VirtualBox-7.1.4/src/libs/xpcom18a4/python/src/PyIInputStream.cpp
@@ -74,7 +74,14 @@ static PyObject *DoPyRead_Buffer(nsIInpu
 # else
         int buf_len;
 # endif /* VBOX */
+# if (PY_VERSION_HEX < 0x030d0000)
 	if (PyObject_AsWriteBuffer(obBuffer, &buf, &buf_len) != 0) {
+# else
+	Py_buffer py_view;
+	if (PyObject_GetBuffer(obBuffer, &py_view, PyBUF_SIMPLE) == 0) {
+		buf = py_view.buf;
+		buf_len = py_view.len;
+# endif
 #endif
 		PyErr_Clear();
 		PyErr_SetString(PyExc_TypeError, "The buffer object does not have a write buffer!");
@@ -91,6 +98,9 @@ static PyObject *DoPyRead_Buffer(nsIInpu
 	nsresult r;
 	Py_BEGIN_ALLOW_THREADS;
 	r = pI->Read((char *)buf, n, &nread);
+# if (PY_VERSION_HEX >= 0x030d0000)
+	PyBuffer_Release(&py_view);
+# endif
 	Py_END_ALLOW_THREADS;
 	if ( NS_FAILED(r) )
 		return PyXPCOM_BuildPyException(r);