[Accepted] SE-0508: Array expression trailing closures

Hi all,

The review of SE-0508: Array expression trailing closures concluded on February 12, 2026. The language steering group has decided to accept the proposal.

Feedback was positive on adding language support for trailing closures after sugared array and dictionary types. The steering group agreed with feedback that any possible source breakage in result builders that take lists of closure expressions was unlikely to be of practical significance and, in any case, already a brittle use case.

Thank you, as always, to all participants in this review process for helping to make Swift a better language.

Xiaodi Wu
Review Manager

13 Likes