Note Change Date + License for MariaDB MaxScale

dosp-survey.ltx

@@ -166,6 +166,10 @@ used for MaxScale 2.1.0.\footnote{See
 
 BUSL requires a licensor to specify a ``Change Date" and a ``Change License".
 
+MariaDB's Change Date for MaxScale is four years after the release of a
+specific version, and its Change License is GPLv2.
+% example: https://github.com/mariadb-corporation/MaxScale/blob/23.08/LICENSE2308.TXT
+
 The Linux Foundation noted (\otsurl{https://www.linuxfoundation.org/blog/how-open-source-foundations-protect-the-licensing-integrity-of-open-source-projects})
 that several prominent projects switched away from open-source licenses
 from 2018 to 2023. Not all of these adopted DOSP licenses, but those that did