* (bug 36987) API avoids mangling fields in continuation parameters
* (bug 30836) siteinfo prop=specialpagealiases will no longer return nonexistent special pages
* (bug 38190) Add "required" flag to some token params for hint in api docs.
+* (bug 27567) Add file repo support to prop=duplicatefiles.
=== Languages updated in 1.20 ===