Just my 2 cents, part of a developer's interest is the fun and reward of their work. I have noticed for other useful projects in the past, too much negativity (nagging, repeating the same complaints, etc) rather than taking the time to thank the developer for their work often leads to the developer (understandably) losing interest.
For the development and updates of AeroGlass, I doubt Bigmuscle has any help and he probably has other commitments too, so we should be grateful that he is still working on it despite MS's updates constantly breaking it. Also, I very much doubt the donations come close to paying for his work, so it is still to a large extent voluntary work on his part.
The April update was released on the very last day of April, only 2 1/2 months ago (not 4 which seems to be quoted regularly here). Bigmuscle has taken longer than this in the past, at a time when more people were posting on the forum and yet fewer of them complaining.
So perhaps we can return to the OP topic and thank Bigmuscle for his continued work and for his latest release, no matter when it does come out.