We are pleased to announce community answers v1.8.3 release. The new release adds few needed features like natural search functionality for questions along with fixing many bugs. The deprecated and old j1.5 API was removed in favor of the new API to take advantage of new API in j2.5 powered websites.
Please see change log for detailed list of changes made.
UPDATE: A bug with user questions page is fixed in v1.8.4. Please update.