diff --git a/doc/ssl/SSL_CTX_set_session_cache_mode.pod b/doc/ssl/SSL_CTX_set_session_cache_mode.pod
index b08a3ea0b..c5d2f43df 100644
--- a/doc/ssl/SSL_CTX_set_session_cache_mode.pod
+++ b/doc/ssl/SSL_CTX_set_session_cache_mode.pod
@@ -129,4 +129,9 @@ L<SSL_CTX_set_session_id_context(3)|SSL_CTX_set_session_id_context(3)>,
 L<SSL_CTX_set_timeout(3)|SSL_CTX_set_timeout(3)>,
 L<SSL_CTX_flush_sessions(3)|SSL_CTX_flush_sessions(3)>
 
+=head1 HISTORY
+
+SSL_SESS_CACHE_NO_INTERNAL_STORE and SSL_SESS_CACHE_NO_INTERNAL
+were introduced in OpenSSL 0.9.6h.
+
 =cut