Mediawiki 1.20wmf1 Feature Test Charters
Apropos of 1.20
New diff styles 
Diffs should look appropriate in all supported browsers
Clicking "Show changes" should show appropriate diff view
Redirect options 
Redlinks everywhere. The preference to display missing links as “link?” (instead of just redlinks) has been removed (bug 27619)
Editing changes 
Test that watched-pages email have links to edits. Edit emails for watched pages will now always provide a link to the edit which triggered the mail (fixing bug 32210)
Test that when selecting large areas of the page, section edit links and TOC hide/show links are excluded from the copied text on supporting browsers (bug 34445).
Test that browser page titles now distinguish between "Creating" for new page and "Editing" for existing page.
Special:Contributions, RecentChanges and ShortPages have localized parens and pipes. Test zh and ja wikis. (bug 34702)
Mizo (lus) language support added.
Logs and Links 
Test that Special:Listusers now includes a link to the user's talk page and contributions (bug 12021).
Test that the deletion is shown on redlinked file pages, if applicable (bug 34863).