KNIME Analytics Platform 3.3.2 has been released, providing some minor bug-fixes. Check out the changelog. You can try it out for yourself by updating your existing KNIME installation using the "Update KNIME..." action in the "File" menu or downloading it from here.
KNIME Server 4.4.1 has been released alongside KNIME Analytics Platform 3.3.2. The release includes a number of minor bug-fixes. The compatibility matrix, and links to the updates are available here.