Fix site view form missing classes in J4+. Fix permissions tab in items in J4+. Fix site display controller checkEditId function in J4+. Add class methods to the HtmlView classes in J4+. Fix broken toolbar call in HtmlView in J4+.
Here's an update on the current version, which includes changes towards the next release still in beta.
First alpha release of Component Builder towards Joomla 4 (very unstable...).