The authors of DIP 1036, "String Interpolation Tuple Literals",
have chosen to withdraw it from consideration in deference to an
alternative proposal currently being drafted here:
https://github.com/John-Colvin/YAIDIP
From the DIP review process documentation:
Unlike Abandoned DIPs, a Withdrawn DIP cannot be revived
without the DIP manager's approval. A DIP author will have a
specific reason for withdrawing from the process, and that
reason might preclude further consideration of the DIP. For
example, a DIP that was withdrawn because it received an
overwhelmingly negative response should be rewritten and
submitted as a new proposal rather than revived in its original
form. If the DIP manager does allow a Withdrawn DIP to be
revived, it must begin the review process anew from the first
round of Community Review.
https://github.com/dlang/DIPs/blob/master/docs/process-reviews.md#withdrawn-and-superseded-dips
The DIP's new home is here:
https://github.com/dlang/DIPs/blob/master/DIPs/other/DIP1036.md