I've successfully updated my server from 1.1.1 to 1.1.3. Web client working fine.
I accessed using old 1.1.1 client fine too.
I updated to using the 1.1.2 Mac OS X client but it crashes on start up. I deleted the cache folder in case that was an issue but just the same.
Reverted back to using 1.1.1 client and working ok, so not critical for fix but thought I'd report.