SMF 1.1.3 has been released. It fixes several bugs in 1.1.2.
For complete details, see http://www.simplemachines.org/community/index.php?topic=178757.0
To upgrade, go to your package manager (Admin -> Packages) and click the link to download and install the patch. It modifies quite a few files, but should not interfere with Sphinx - I upgraded two Sphinx sites this morning with no problem.
Unfortunately, technical problems have prevented the announcement email from being sent, so it may be a while before you get an email about this...