Hi,
The welcome notification[1] shown to new users previously did not link
anywhere, and just had some text which was not super useful. With the
upcoming deployment of 1.27.0-wmf.7, administrators can put the page the
notification should link to in the page
"MediaWiki:notification-welcome-link" on your wiki. For example, on
mediawiki.org, our welcome/intro page is [2], so I created [3] with the
text "Special:MyLanguage/How to contribute".
This is customizable per-wiki because each wiki tends to have their
welcome pages in different locations.
Please let me know if you have any questions. The bug for this was [4].
[1]
https://commons.wikimedia.org/wiki/File:Echo_welcome_notification_screensho…
[2]
https://www.mediawiki.org/wiki/Special:MyLanguage/How to contribute
[3]
https://www.mediawiki.org/wiki/MediaWiki:Notification-welcome-link
[4]
https://phabricator.wikimedia.org/T117509
Thanks!
-- Legoktm