Software issues
Software bug fixed, overuse of parser function curtailed
This week, a bug that was introduced in a new revision of MediaWiki caused an infrequent bug that resulted in the rendering of an internal marker within templates and wikitext; the bug was quickly fixed, but left a series of articles affected by the bug. Meanwhile, developers put a limit on the usage of the {{#ifexist:}} parser function; overuse of this function (thousands of times for one page view, in some cases) led to unusually heavy traffic on database servers.