Yes you will not be notified because it was Beta update of CubeWP Framework,
But it can be downloaded,
Go to this page
CubeWP – The Most Advanced End-to-End WordPress Dynamic Content Framework
you will find a dropdown down there click on it and select 1.0.8-beta1 and hit the download button.
About your 2nd question: it happens on website due to ssl issue but you did not mention that when you open any external URL from cubewp dashboard then you get this screen. Kindly share screenshot of that particular place where you click and then you get this screen.