diff --git a/doc/plugins/headinganchors/discussion.mdwn b/doc/plugins/headinganchors/discussion.mdwn
index 512caa461..f55408ff6 100644
--- a/doc/plugins/headinganchors/discussion.mdwn
+++ b/doc/plugins/headinganchors/discussion.mdwn
@@ -34,6 +34,8 @@ A patch to make it more like MediaWiki:
 
 --Changaco
 
+> This was applied in 3.20110608 --[[smcv]]
+
 ----
 
 I think using this below would let the source html clear for the browser
@@ -49,3 +51,14 @@ without changing the render:
 
 Don't you think ?
 [[mathdesc]]
+
+> Older HTML and URI specifications didn't allow Unicode in IDs or fragments,
+> but HTML5 and IRIs do. See also [[plugins/contrib/i18nheadinganchors]]
+> and its [[plugins/contrib/i18nheadinganchors/discussion]] page.
+>
+> I think we should probably try to make these autogenerated IDs
+> punctuation-independent by stripping most non-word characters, like
+> Pandoc does: I would not expect changing
+> `## Headings, maybe with punctuation` to
+> `## Headings (maybe with punctuation)` to have any effect on the
+> generated "slug" `headings-maybe-with-punctuation`. --[[smcv]]