The current SMW release is 1.5, and the upcoming one is 1.5.1.
1.15 is the current MediaWiki version.
Jeroen De Dauw
Don't panic. Don't be evil. 50 72 6F 67 72 61 6D 6D 69 6E 67 20 34 20 6C 69 66 65!
I was about to upgrade to 1.15 over the weekend but I ran into an error about 'SMW_RAP_STORE' not being defined (the actual name could be slightly different... basically, it did not recognize that I was using the RAP triple store). I put the upgrade on hold until 1.15.1 comes out.
I can't try with SVN from where I am but maybe you could check out if the global name for alternate stores are missing in 1.15.1 as well ?