Issues

• Does iter_mut() guarentee stable order if you don't insert/remove elements?

  rust-lang/hashbrown#749 · Filter by author jestarray opened on Sep 13, 2026
  5

• What happens when calling HashTable::insert_unique multiple times with the same value?

  rust-lang/hashbrown#744 · Filter by author gendx opened on Jul 29, 2026
  4

• Choose a better SIMD-less target than i586 Linux

  rust-lang/hashbrown#737 · Filter by author clarfonthey opened on Jul 3, 2026
  3

• Is there a way for me to program a hashtable that can intake multiple values of the same key?

  rust-lang/hashbrown#728 · Filter by author Vizonex opened on May 22, 2026
  3

• Extend HashTable's bucket API to support insertion ?

  rust-lang/hashbrown#723 · Filter by author eggyal opened on Apr 27, 2026
  5

• Hash crates to include in benchmarks

  rust-lang/hashbrown#713 · Filter by author clarfonthey opened on Apr 11, 2026

• Cachegrind benchmarks

  rust-lang/hashbrown#703 · Filter by author clarfonthey opened on Mar 15, 2026
  3

• Allow to prefetch buckets

  rust-lang/hashbrown#677 · Filter by author rluvaton opened on Dec 28, 2025
  13

• add debug visualizers

  rust-lang/hashbrown#647 · Filter by author programmerjake opened on Sep 8, 2025
  3

• Improving performance by updating Abseil design

  rust-lang/hashbrown#635 · Filter by author gaujay opened on Aug 10, 2025
  7

• Support comparison policies in HashMap

  rust-lang/hashbrown#634 · Filter by author CodesInChaos opened on Aug 9, 2025
  1

• Add a replace_key_for_value API for HashMaps

  rust-lang/hashbrown#632 · Filter by author cactusdualcore opened on Jul 28, 2025
  4

• Feature: HashTable::try_insert_unique_within_capacity

  rust-lang/hashbrown#618 · Filter by author morrisonlevi opened on Apr 22, 2025
  4

• HashTable grows even though capacity is not exceeded

  rust-lang/hashbrown#602 · Filter by author e00E opened on Dec 18, 2024
  8

• HashTable iterator over entries

  rust-lang/hashbrown#599 · Filter by author TylerBloom opened on Dec 11, 2024
  4

• Cannot use or_insert_with for HashMap::<usize, HashMap<usize, i64>> - is this supposed to be supported?

  rust-lang/hashbrown#595 · Filter by author FelixZY opened on Dec 6, 2024
  4

• Use cfg no_global_oom_handling

  rust-lang/hashbrown#594 · Filter by author Clipi-12 opened on Dec 5, 2024

• hashbrown 0.15.1 bumped the MSRV on a patch release

  rust-lang/hashbrown#585 · Filter by author tnull opened on Nov 5, 2024
  6

• foldhash::fast::RandomState is very bad

  rust-lang/hashbrown#577 · Filter by author turalcar opened on Oct 14, 2024
  15

• segfault at HashMap.get

  rust-lang/hashbrown#552 · Filter by author houstar opened on Sep 10, 2024
  9

• Refactoring proposal: cleaning up the internal APIs

  rust-lang/hashbrown#545 · Filter by author clarfonthey opened on Aug 20, 2024
  12

• Compiler cant hoist following branch out of loop

  rust-lang/hashbrown#544 · Filter by author re0312 opened on Aug 19, 2024
  2

• Support lower maximum size

  rust-lang/hashbrown#540 · Filter by author overlookmotel opened on Jul 14, 2024
  1

• Was swap-remove behavior ever considered when removing entries?

  rust-lang/hashbrown#503 · Filter by author matthieu-m opened on Feb 14, 2024
  10

• Benchmark biaised due to no fence around input

  rust-lang/hashbrown#493 · Filter by author ogxd opened on Dec 22, 2023