An automated run of parserTests.php showed the following failures:

Running test Table security: embedded pipes (http://mail.wikipedia.org/pipermail/wikitech-l/2006-April/034637.html)... FAILED! Running test Link containing double-single-quotes '' (bug 4598)... FAILED! Running test Template with thumb image (wiht link in description)... FAILED! Running test message transform: <noinclude> in transcluded template (bug 4926)... FAILED! Running test message transform: <onlyinclude> in transcluded template (bug 4926)... FAILED! Running test BUG 1887, part 2: A <math> with a thumbnail- math enabled... FAILED! Running test Language converter: output gets cut off unexpectedly (bug 5757)... FAILED! Running test HTML bullet list, unclosed tags (bug 5497)... FAILED! Running test HTML ordered list, unclosed tags (bug 5497)... FAILED! Running test HTML nested bullet list, open tags (bug 5497)... FAILED! Running test HTML nested ordered list, open tags (bug 5497)... FAILED! Running test Parsing optional HTML elements (Bug 6171)... FAILED! Running test Inline HTML vs wiki block nesting... FAILED! Running test Mixing markup for italics and bold... FAILED! Running test 5 quotes, code coverage +1 line... FAILED! Running test HTML Hex character encoding.... FAILED! Running test dt/dd/dl test... FAILED!

Passed 409 of 426 tests (96.01%) FAILED!