Here is the changelog (as on February, 2019):

Version 1.8.1 (17th Jan, 19)
* 3 default feeds (top, latest and unanswered)
* Admin can remove topics
* Links inside questions and answers open in new window
* Bug fixes

Version 1.8 (7th Jan, 19)
* Admin Settings
* Mailchimp integration
* Auto tags
* Bug fixes

Version 1.7 (10th September, 18)
* Design improvements
* Bug fixes

Version 1.6.5 (29th August, 18)
* Installer changes

Version 1.6.3 (14th Dec, 17)
* Support for comments moderation
* Bug fixes

Version 1.6.2 (2nd March, 17)
* Bug fixes

Version 1.6.1 (15th Feb, 2017)
* Bug fixes

Version 1.6 (1st Feb, 2017)
* Unified ajax search for users, topics and questions
* Bug fixes

Version 1.5 (23rd Jan, 2017)
* Verified profiles (New Feature)
* Login with Google (New Feature)
* Choose topics for new users (New Feature)
* Social sharing links for answers (New Feature)
* Bug fixes

Version 1.1 (12 Jan, 2017)
* Performance improvements
* Bug fixes

Version 1.0.1 (10 August, 2016)
* Bug fixes

Version 1.0 (1 August, 2016)
* Released

[Update] We just released the latest version 1.8.2 yesterday (18th Feb). 

So far, there have been 2 updates this year in last one and half month. We are working on next update which primarily includes performance enhancements and minor improvements. This should be out in a week or so.

For more, check this http://demo.quosera.com/answer/189

This year (2019), we have released 3 updates so far. Next update wouldn't be anytime soon unless there are any critical issues since we are working on cloud/hosted version of Quosera which is a considerable effort and all our resources are currently assiged to it.