In RELEASES.md Stabilize impl From<[(K, V); N]> for HashMap
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- [`collections::{BTreeMap, HashMap}` now implement `From<[(K, V); N]>`.][84111] |
Place for release 1.55 but in code
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#[stable(feature = "std_collections_from_array", since = "1.56.0")] |
stabilize only in 1.56