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Try replacing the assertions in Array.hs with -fcheck-prim-bounds

blocked-on:GHCThis waits for a change in GHCThis waits for a change in GHC

maintenance

Status: Open.

#588 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Feb 23, 2026

Idea for reducing array allocations in functions that use shrink

performance

Status: Open.

#587 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Jan 19, 2026

Represent empty maps as BitmapIndexed 0 []?!

performance

Status: Open.

#578 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Dec 14, 2025

Some type constraints can be relaxed from Hashable to Eq

maintenance

Status: Open.

#574 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Dec 11, 2025

·  

0.3

Iterating arrays from right to left might be faster

performance

Status: Open.

#561 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 29, 2025

hashNub (and hashNubOn)

feature-request

Status: Open.

#560 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 29, 2025

Projects that use u-c?

Status: Open.

#555 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 26, 2025

Make use of hashable's Hashed type?!

feature-request

Status: Open.

#552 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 15, 2025

Add upsert?!

compatibility-with-containersAPI compatibility with the containers packageAPI compatibility with the containers package

feature-request

Status: Open.

#549 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 13, 2025

Review time complexities of difference[With[Key]]

documentation

Status: Open.

#543 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 9, 2025

Improve instance Ixed (HashMap k a) in lens

feature-request

Status: Open.

#541 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Nov 2, 2025

Make Array unlifted?!

maintenance

performance

Status: Open.

#537 In haskell-unordered-containers/unordered-containers;

· sjakobi opened on Oct 27, 2025