PEP 465: a dedicated infix operator for matrix multiplication (closes #21176)
diff --git a/Doc/library/dis.rst b/Doc/library/dis.rst
index d86550f..fbabe35 100644
--- a/Doc/library/dis.rst
+++ b/Doc/library/dis.rst
@@ -364,6 +364,11 @@
    Implements ``TOS = TOS1 * TOS``.
 
 
+.. opcode:: BINARY_MATRIX_MULTIPLY
+
+   Implements ``TOS = TOS1 @ TOS``.
+
+
 .. opcode:: BINARY_FLOOR_DIVIDE
 
    Implements ``TOS = TOS1 // TOS``.
@@ -436,6 +441,11 @@
    Implements in-place ``TOS = TOS1 * TOS``.
 
 
+.. opcode:: INPLACE_MATRIX_MULTIPLY
+
+   Implements in-place ``TOS = TOS1 @ TOS``.
+
+
 .. opcode:: INPLACE_FLOOR_DIVIDE
 
    Implements in-place ``TOS = TOS1 // TOS``.