Document when a session gets removed from cache
Document the fact that if a session is not closed down cleanly then the
session gets removed from the cache and marked as non-resumable.
Fixes
@@ -48,6 +48,11 @@ SSL_SESSION object that cannot be used for resumption in TLSv1.3. It also
enables applications to obtain information about all sessions sent by the
server.
+A session will be automatically removed from the session cache and marked as
+non-resumable if the connection is not closed down cleanly, e.g. if a fatal
+error occurs on the connection or L<SSL_shutdown(3)> is not called prior to
+L<SSL_free(3)>.
+
In TLSv1.3 it is recommended that each SSL_SESSION object is only used for
resumption once.
