Board Thread:Support Requests - Getting Technical/@comment-15278555-20140108174021/@comment-4519283-20140108175152

Upgrading the MediaWiki installation is a major process that can take months to prepare for and months to implement. It's unlikely that they would upgrade to 1.22 only a year after upgrading to 1.19, especially because 1.19 will be supported until 2015.

That being said, there should not be errors in the program because 1.19 is still officially supported. If you post the error messages here, I could try to help (I find that one common error has to do with talk pages, that can be solved by visiting the talk page under the bot account, not your personal account)