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Drop JDK 8 and add -Yfuture-lazy-vals option for avoid sun.misc.Unsafe

Status: Open.

#4871 In typelevel/cats;

· xuwei-k opened on Jun 13, 2026

Applicative[OneAnd[ZipLazyList, *]] works incorrectly

Status: Open.

#4840 In typelevel/cats;

· satorg opened on Mar 8, 2026

Make Hash.fromUniversalHashCode null safe

good first issueIssues that are easier to take on for first time contributorsIssues that are easier to take on for first time contributors

Status: Open.

#4831 In typelevel/cats;

· durban opened on Feb 22, 2026

Typeclass instances for ZipLazyList and ZipStream seem to be unlawful

Status: Open.

#4830 In typelevel/cats;

· satorg opened on Feb 22, 2026

A Nullable type for scala3

Status: Open.

#4822 In typelevel/cats;

· johnynek opened on Feb 15, 2026

Unexpected behavior of NonEmptyList.reduce for tuples of lists

Status: Open.

#4817 In typelevel/cats;

· kiendang opened on Jan 31, 2026

catsSyntaxEq returns false for equality of positive and negative zero in Option

Status: Open.

#4807 In typelevel/cats;

· charlesandrews opened on Jan 8, 2026

UnorderedTraverse should extend Functor

Status: Open.

#4802 In typelevel/cats;

· johnynek opened on Dec 20, 2025

Add commonly known operators to algebra type classes

Status: Open.

#4795 In typelevel/cats;

· ldeluigi opened on Nov 25, 2025

Named version of mapN and friends

Status: Open.

#4792 In typelevel/cats;

· BalmungSan opened on Nov 14, 2025

Add EuclidianRing[Int, Long, Short, Byte] to Alleycats

Status: Open.

#4788 In typelevel/cats;

· TheDrawingCoder-Gamer opened on Nov 3, 2025

IArray instances (Scala 3)

Status: Open.

#4787 In typelevel/cats;

· TheDrawingCoder-Gamer opened on Oct 28, 2025