v0.17.0

Added

• Added hash_table::OccupiedEntry::replace_entry_with (#669)
• Added hash_map::{OccupiedEntry::into_entry, VacantEntryRef::insert_entry_with_key} (#670)
• Added hash_table::UnsafeIter (#667)
• Added iter methods to various HashTable iterators (#667)
• Added HashMap::{replace_key,replace_key_unchecked,insert_with_key_unchecked} (#681)
• Added into_map methods to all HashMap entry types (#686)
• Added into_table methods to all HashTable entry types (#686)
• Added #[must_use] to constructors (#697)
• TryReserveError now implements Error (#698)

Changed

• Changed EntryRef to use ToOwned (#670)
• Bumped MSRV to 1.85 (2024 edition) (#676)

Fixed

• HashTable:clone_from now forwards to RawTable::clone_from instead of using the default implementation (#668)
• Fixed potential UB in RawTableInner::fallible_with_capacity (#692)
• Fixed incorrect length if a hasher panics during rehash (#710)

v0.16.1

Added

• Added HashTable methods related to the raw bucket index (#657)
• Added VacantEntryRef::insert_with_key (#579)

Changed

• Removed specialization for Copy types (#662)
• The get_many_mut family of methods have been renamed to get_disjoint_mut
  to match the standard library. The old names are still present for now, but
  deprecated. (#648)
• Recognize and use over-sized allocations when using custom allocators. (#523)
• Depend on serde_core instead of serde. (#649)
• Optimized collect on rayon parallel iterators. (#652)

v0.16.0

Changed

• Bump foldhash, the default hasher, to 0.2.0.
• Replaced DefaultHashBuilder with a newtype wrapper around foldhash instead of re-exporting it directly.

v0.15.5

Added

• Added Entry::or_default_entry and Entry::or_insert_entry.

Changed

• Re-implemented likely/unlikely with #[cold]

v0.15.4

Changed

• Removed optional dependency on compiler-builtins. This only affects building as part of std.

v0.15.3

Added

• SIMD implementation for LoongArch (#592, requires nightly)

Changed

• Optimized insertion path by avoiding an unnecessary match_empty (#607)
• Increased minimum table size for small types (#615)
• Dropped FnMut trait bounds from ExtractIf data structures (#616)
• Relaxed constraint in hash_map::EntryRef insertion methods K: From<&Q> to &Q: Into<K> (#611)
• Added allocator template argument for rustc_iter (#605)
• The allocator-api2/nightly feature is no longer enabled by hashbrown/nightly (#606)