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<code>OutOfMemoryError</code> not propagated when <code>IO</code> originates from <code>CompletableFuture</code>

🪲 bug

good first issue

Status: Open.

Bug

#4505 In typelevel/cats-effect;

· tpetillot opened on Oct 13, 2025

Strange behavior when running EitherT in parallel

Status: Open.

#4497 In typelevel/cats-effect;

· Roman-Statsura opened on Oct 6, 2025

Supervisor leaks memory when fibers are canceled quickly

🪲 bug

Status: Open.

#4490 In typelevel/cats-effect;

· TomasMikula opened on Sep 22, 2025

Possible Issue with Timeout in Cats-Effect 3.6.x which resulted in Http4s Connection leaks

🪲 bug

Status: Open.

#4489 In typelevel/cats-effect;

· scottmartin-jh opened on Sep 18, 2025

· 

v3.6.next

<code>Queue#mapK</code> violates atomicity guarantees

🪲 bug

Status: Open.

#4483 In typelevel/cats-effect;

· djspiewak opened on Sep 5, 2025

Scala Native + Windows?

📚 docs

Status: Open.

#4473 In typelevel/cats-effect;

· durban opened on Aug 21, 2025

· 

v3.7.0

IOAppSuite failure on JDK 25

Status: Open.

#4471 In typelevel/cats-effect;

· SethTisue opened on Aug 17, 2025

<code>AsyncSuite</code> failure on macos-14

Status: Open.

#4469 In typelevel/cats-effect;

· djspiewak opened on Aug 11, 2025

BoundedAsyncQueue performs poorly on Scala Native

Status: Open.

#4465 In typelevel/cats-effect;

· reardonj opened on Aug 3, 2025

Can we implement some flavor of <code>interruptible</code> on Native using signals?

🍄 enhancement

Status: Open.

Feature

#4463 In typelevel/cats-effect;

· armanbilge opened on Jul 30, 2025

macOS CI build hung again

Status: Open.

#4456 In typelevel/cats-effect;

· djspiewak opened on Jul 23, 2025

MutexSuite timeout on Windows

Status: Open.

#4446 In typelevel/cats-effect;

· durban opened on Jul 18, 2025