prevent inheritance to nested tables which caused various issues
* (bug 32686) Tooltip on links to non-existing pages are now always in user's
language
+* (bug 33454) ISO-8601 week-based year number (format character 'o') is now
+ calculated correctly with respect to timezone
=== API changes in 1.19 ===
* (bug 19838) siprop=interwikimap can now use the interwiki cache.