Is Go Finally Adding Immutable Types After an 8‑Year Dormant Proposal?
The article revisits the eight‑year‑old Go proposal #27975 for an immutable‑type qualifier, explains the defensive‑copy performance problem it aims to solve, details the technical and community challenges—including const‑contamination and io.Writer compatibility—and explores why generics and safety concerns have revived the discussion in 2026.
