For anything not covered in the other forums.
By Wendigo
#66692 Humblebundle currently has a pay what you want webdesign ebook bundle running with three books about "React" which is used in GD5.
This may be a good opportunity if you want to start working on the new IDE.
Currently (2018-05-25) there are 10 days left.
https://www.humblebundle.com/books/web-design-development-books?hmb_source=navbar&hmb_medium=product_tile&hmb_campaign=tile_index_3