An update to the domain mapping plugin is now available for download from the usual place.
This version fixes a couple of issues:
1. 301 redirects are strictly enforced now – there was an issue that mean’t some set ups defaulted to 302 redirects.
2. Split the hooking of site_url and home options for systems that have different settings in these options (not many sites would have this, so it probably wasn’t an issue for most).
3. General code tidy up.
If you are upgrading then you only need to replace the domain-mapping.php file as the sunrise.php file is the same as previous versions