I'm able to search for the newest questions tagged with [xcode] and [ios] and score >= -2.
But I see 0 results when searching for the newest questions tagged with [xcode] or [ios] and score >= -2.
Update: OR tags is now supported, it requires an explicit
or between one or more tags, anything without an
or in between is AND (the historical default).
For example: [xcode] or [ios] score:-2
This is currently working as-designed, the
[or] syntax was never designed to work...and it never did work when combined with anything else. It worked simply because the redirect logic never checked for it (still doesn't).
That being said "or" for tags is something I'll try and get to after our colo move to NY (hopefully this coming weekend). It's no longer technically an impossibility on the back-end, it's now just a matter of syntax and parsing.