There's actually no reason to mention the C++ bindings seek change in the README,

as there's nothing specifically that the user needs to know about.

This commit was SVN r12126.

README

@@ -278,8 +278,6 @@ base as of this writing (12 Sep 2006):
   interface.  A "large" size that includes the two choice buffer MPI
   functions is possible in future versions of Open MPI.
 
-- MPI::SEEK_* constants are now supported in C++ MPI applications.
-
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 Building Open MPI