Bundled extensions and skins/pl

The downloadable version of MediaWiki comes with a number of extensions and skins bundled in by default since version 1.18.

Od MediaWiki 1.18

 * (merged into core in MediaWiki 1.22)
 * (merged into core in MediaWiki 1.22)
 * (merged into core in MediaWiki 1.22)
 * (merged into core in MediaWiki 1.22)
 * (merged into core in MediaWiki 1.22)
 * (merged into core in MediaWiki 1.22)

Since MediaWiki 1.25

 * (split from extension Cite)

Since MediaWiki 1.24
These were part of MediaWiki core before that.