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)