Regenerate documentation.
diff --git a/asio/src/doc/reference.qbk b/asio/src/doc/reference.qbk
index 6d00017..bd352d4 100644
--- a/asio/src/doc/reference.qbk
+++ b/asio/src/doc/reference.qbk
@@ -27827,14 +27827,14 @@
   template<
       typename ``[link asio.reference.GettableSerialPortOption GettableSerialPortOption]``>
   void ``[link asio.reference.basic_serial_port.get_option.overload1 get_option]``(
-      GettableSerialPortOption & option);
+      GettableSerialPortOption & option) const;
   ``  [''''&raquo;''' [link asio.reference.basic_serial_port.get_option.overload1 more...]]``
 
   template<
       typename ``[link asio.reference.GettableSerialPortOption GettableSerialPortOption]``>
   void ``[link asio.reference.basic_serial_port.get_option.overload2 get_option]``(
       GettableSerialPortOption & option,
-      asio::error_code & ec);
+      asio::error_code & ec) const;
   ``  [''''&raquo;''' [link asio.reference.basic_serial_port.get_option.overload2 more...]]``
 
 
@@ -27847,7 +27847,7 @@
   template<
       typename ``[link asio.reference.GettableSerialPortOption GettableSerialPortOption]``>
   void get_option(
-      GettableSerialPortOption & option);
+      GettableSerialPortOption & option) const;
 
 
 This function is used to get the current value of an option on the serial port.
@@ -27890,7 +27890,7 @@
       typename ``[link asio.reference.GettableSerialPortOption GettableSerialPortOption]``>
   void get_option(
       GettableSerialPortOption & option,
-      asio::error_code & ec);
+      asio::error_code & ec) const;
 
 
 This function is used to get the current value of an option on the serial port.
@@ -89565,7 +89565,7 @@
   struct is_dynamic_buffer
 
 
-If `ASIO_NO_DYNAMIC_BUFFER_V1` is not defined, determines whether the type satisfies the DynamicBuffer\_v1 requirements. Otherwise, if `ASIO_NO_DYNAMIC_BUFFER_V1` is defined, determines whether the type satisfies the DynamicBuffer\_v1 requirements. 
+If `ASIO_NO_DYNAMIC_BUFFER_V1` is not defined, determines whether the type satisfies the DynamicBuffer\_v1 requirements. Otherwise, if `ASIO_NO_DYNAMIC_BUFFER_V1` is defined, determines whether the type satisfies the DynamicBuffer\_v2 requirements. 
 
 [heading Requirements]