The LanguageCs.php file both in MediaWiki CVS and in Wikimedia installations contains many wrongly translated items, and many items are missing completely. The file at its current version is in fact unusable.
There is a much more up-to-date version at [[meta:LanguageCs.php]], and cs: Wikipedia has an up-to-date translation in its MediaWiki namespace.
Version: unspecified
Severity: enhancement