You can read the release announcement here. Obviously, its biggest feature is that it works on phpBB 3.2 and 3.3. This is the first of my extensions to be updated for phpBB 3.3.
It can be downloaded from my Smartfeed page or from the GitHub branch. If downloaded from GitHub, make sure to place it in the /ext/phpbbservices/smartfeed folder. Disable the extension first, removed the old files, then upload the new files and reenable the extension.