One of the the most significant new features in Coldbox v7 and Wirebox v7, delegates, is arguably a new language feature rather than a framework feature. Despite the implementation not being native with either Lucee or Adobe engines, the functionality provided using delegates is both long overdue and likely to change the way you program - and, especially, the way you approach inheritance and code reusability.
Delegates are game-changers for anyone using Wirebox, in the way you approach code reusability and inheritance.