is it possible to learn D(2)?

[Walter Bright]

Caligo wrote:
> If there is going to be a D3, will it be backwards compatible with D2?

D3 plans are a complete unknown at the moment.

> And why is work still being done on the D1 compiler?  Shouldn't it be 
> marked deprecated so people stop using it and move to D2?

Since there are many breaking changes from D1 to D2, and a lot of people have 
large code bases in D1, it makes sense to support them with bug fixes. However, 
no new features are added to D1.