avoid bugs by testingThe main demo has now been updated to point to 1.7.3. There is still an old demo of Testlink 1.6 available if you need to access it for some reason. It is highly recommended all users upgrade to 1.7 as 1.6 is no longer being maintained and 1.7 offers significant benefits over 1.6. Many changes have been made to the Testlink API based on feedback. Please update your client API