Re: Postgres 11 release notes

Hi Bruce,

 > I expect a torrent of feedback.;-)

Could you add this fix to the release note because this change affects
an extension developer using the hook function.
It would be better to know the change by reading the release note, not compilation error.

<!--
2017-01-11 [4d41b2e09] Add QueryEnvironment to ExplainOneQuery_hook's parameter list.
-->
        <para>
         Add QueryEnvironment to ExplainOneQuery_hook's parameter list
         (Tatsuro Yamada, Thomas Munro)
        </para>

Discussion: https://postgr.es/m/890e8dd9-c1c7-a422-6892-874f5eaee048@lab.ntt.co.jp

I guess "E.1.3.11. Source Code" or "E.1.3.12. Additional Modules" sections are
suitable for putting the message in the release note.

Thanks,
Tatsuro Yamada
NTT Open Source Software Center