REL1_17: <rsd version="1.0" xmlns="http://archipelago.phrasewise.com/rsd">
REL1_18: <rsd xmlns="http://www.mediawiki.org/xml/api/" version="1.0">
trunk: <rsd version="1.0" xmlns="http://archipelago.phrasewise.com/rsd">
1.18 is using an incorrect MW api xmlns for ?action=rsd instead of the standard srd xmlns that rsd parsers are supposed to use.
Version: 1.18.x
Severity: blocker