On Tue, 26 Aug 2014 06:32:13 GMT, Sönke Ludwig wrote:

In fact, the serialization code supports Nullable!T since a few weeks! (See https://github.com/rejectedsoftware/vibe.d/blob/master/source/vibe/data/serialization.d#L222)

Thank you Sönke! I missed that. May I say it's been a pleasure working with this framework so far. It's also fantastic that you are so diligent answering questions on this forum, sorry for asking about a solved issue!