Update to 3.20190207. From the changelog:

* graph: Add an optional "file" parameter
* emailauth: When email can't be sent, show the error message
* osm: Don't raise errors if tags don't have attached icons
* cgi: Avoid C compiler warnings for waitpid() on NetBSD
* Hide popup template content from documentation (Closes: #898836)
* meta: Make [[!meta date]] show an error if dates are invalid or
  Date::Parse can't be loaded
* inline: Cope with non-ASCII `rootpage` parameter.
  Thanks, Feng Shu
* table: Cope with non-ASCII content in CSV format tables.
  Thanks, Feng Shu
* trail: Allow unescaped punctuation in `pagenames` parameter
* comments: Hide "add comment" link from print stylesheet.
  Thanks, Antoine Beaupr辿
* recentchangesdiff, relativedate, toggle:
  Import JavaScript at the end of the page content, not the beginning,
  so that the browser can render content as soon as possible.
  Thanks, Antoine Beaupr辿
* inline: Add basic test coverage for [[!inline rootpage]]
* table: Add basic test coverage
* po: Add enough test coverage to reproduce Debian #911356
* comments: Improve test coverage
* tests: Exercise Unicode more
* aggregate: Fix aggregation of posts without a title.
  Thanks, Alexandre Oliva
* poll: Added postlink and posttrail options for better multi-page polls.
* Fix permalink to comments.

(schmonz)