DMD 0.150 release

[Chris Miller]

On Sun, 19 Mar 2006 03:37:07 -0500, Walter Bright  
<newshound at digitalmars.com> wrote:

>
> "Jarrett Billingsley" <kb3ctd2 at yahoo.com> wrote in message
> news:dvj435$2k5p$1 at digitaldaemon.com...
>> "Walter Bright" <newshound at digitalmars.com> wrote in message
>> news:dvj3fi$2jb0$1 at digitaldaemon.com...
>>> I wanted to get the interface covariant problem fixed for the library
>>> guys.
>>
>> Sorry for posting so many times, but thank you so much for covariant
>> interface returns.
>
> You're most welcome.
>

It sounded like you needed to use a trick to get this to work; is there a  
runtime penalty?