Repository Issue Activity (beta)

typelevel/cats

Current issue state, recent activity, and per-issue timelines from the indexed issue data.

Open Issues
34
New in 7 Days
0
Closed in 7 Days
0
Average Open Age
755 days
Stale 30+ Days
32
Stale 90+ Days
31
Last 2 Weeks
DateOpenedClosedCommentsEventsOpen Backlog
2026-09-1400000
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2026-09-12000034
2026-09-1100000
2026-09-1000000
2026-09-0900000
2026-09-0800000
2026-09-0700000
2026-09-0600000
2026-09-0500000
2026-09-0400000
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2026-09-0200000
2026-09-0100000
This Week

Opened: 0

Closed: 0

Comments: 0

Events: 0

Top Labels
good first issue (7)
low-hanging fruit (3)
documentation (2)
help wanted (2)
bug (1)
enhancement (1)
optimization (1)
question (1)
Issue Explorer
IssueAuthorStateLabelsCommentsReactionsUpdated

#4871 Drop JDK 8 and add `-Yfuture-lazy-vals` option for avoid `sun.misc.Unsafe`

Opened 3 months ago
xuwei-k
open
No labels
213 days ago

#4822 A Nullable type for scala3

Opened 7 months ago
johnynek
open
No labels
12011 days ago

#4621 Cats Order needs an `orElseBy` combinator

Opened 2 years ago
benhutchison
open
No labels
1612 months ago

#4858 `FlatMap.map2Eval` is not lazy and blows the stack in cases where it probably shouldn't

Opened 4 months ago
satorg
closed - completed
No labels
004 months ago

#4831 Make `Hash.fromUniversalHashCode` null safe

Opened 7 months ago
durban
open
good first issue
614 months ago

#4817 Unexpected behavior of `NonEmptyList.reduce` for tuples of lists

Opened 8 months ago
kiendang
open
No labels
105 months ago

#4639 A flaky test fired in `CokleisliSuite` on the Native Platform

Opened 2 years ago
danicheg
open
testing
205 months ago

#4830 Typeclass instances for `ZipLazyList` and `ZipStream` seem to be unlawful

Opened 7 months ago
satorg
open
No labels
1206 months ago

#4840 `Applicative[OneAnd[ZipLazyList, *]]` works incorrectly

Opened 6 months ago
satorg
open
No labels
006 months ago

#4709 Add withFilter to FunctorFilter.Ops

Opened 2 years ago
ikeyan
open
No labels
107 months ago

#4258 Benchmark `Apply.TraverseStrategy` concept

Opened 4 years ago
armanbilge
open
enhancement
question
low-hanging fruit
107 months ago

#4829 fffff

Opened 7 months ago
thomaslovaslokoy-ui
closed - completed
No labels
007 months ago

#4795 Add commonly known operators to algebra type classes

Opened 10 months ago
ldeluigi
open
No labels
607 months ago

#4789 OptionIdOps.some should handle nulls correctly

Opened 10 months ago
Ivan091
closed - completed
No labels
508 months ago

#4807 catsSyntaxEq returns false for equality of positive and negative zero in Option

Opened 8 months ago
charlesandrews
open
No labels
408 months ago

#2479 Add doctests (excellent first-time issue)

Opened 8 years ago
kailuowang
open
help wanted
documentation
good first issue
1409 months ago

#4802 UnorderedTraverse should extend Functor

Opened 9 months ago
johnynek
open
No labels
409 months ago

#2890 No parsable content: expected string or bytes-like object

Opened 7 years ago
gr211
closed - not_planned
No labels
109 months ago

#4792 Named version of `mapN` and friends

Opened 10 months ago
BalmungSan
open
No labels
0110 months ago

#4689 Show null compatibility with scala string interpolator

Opened 2 years ago
BusyByte
closed - completed
good first issue
8110 months ago

#3889 Deprecate and remove `ifA`

Opened 5 years ago
chuwy
closed - completed
No labels
1410 months ago

#4746 Scala 3: Support `mapN` for tuples greater than 22

Opened 1 year ago
hearnadam
open
No labels
3111 months ago

#4788 Add EuclidianRing[Int, Long, Short, Byte] to Alleycats

Opened 11 months ago
TheDrawingCoder-Gamer
open
No labels
0011 months ago

#4783 Warning: "Calls to parameterless method compose will be easy to mistake for calls to overloads which have a single implicit parameter list"

Opened 11 months ago
saeltz
open
No labels
12011 months ago

#4787 IArray instances (Scala 3)

Opened 11 months ago
TheDrawingCoder-Gamer
open
No labels
0011 months ago

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