Hi,
I added description for empty names and used the suggestion of Aaron.
Hope it's not too frenchy ;-)
diff --git a/doc/org.texi b/doc/org.texi
index 3612bba..72ad0d9 100644
--- a/doc/org.texi
+++ b/doc/org.texi
@@ -15559,8 +15559,8 @@ execution.
@subsubsection @code{:session}
@cindex @code{:session}, src header argument
-The @code{:session} header argument starts a session for an interpreted
-language where state is preserved. By default, a session is not started.
+The @code{:session} header argument starts a (possibly named) session for an
interpreted
+language where state is preserved. All code blocks sharing the same name are
exectuted by the same interpreter process. By default, a session is not
started.
@itemize @bullet
@item @code{none}
@@ -15568,9 +15568,10 @@ The default. Each block is evaluated in its own
session. The session is
not preserved after the evaluation.
@item @code{other}
Any other string passed to the @code{:session} header argument will give the
-session a name. All blocks with the same session name share the same
-session. Using different session name enables concurrent sessions (even for
-the same interpreted language). E.g., @code{:session mysession}.
+session a name. If the given name is empty, the session is named as the
+language used in the block. All blocks with the same session name share the
+same session. Using different session name enables concurrent sessions (even
+for the same interpreted language). E.g., @code{:session mysession}.
@end itemize
@node noweb
