Suppose I maintain a library written in Scala 2.13 that is also cross-published for Scala 3. What are the constraints on updating the main codebase to Scala 3 while continuing to cross-publish for Scala 2.13? #scala
Matej Cerny
npub17hpl...yx66
Functional programming enthusiast with strong foundations in the relational databases world #FP #Scala #Postgres
Pekko 2.0 is going to drop support for Scala 2.12 and move to JDK 17! 🎉 #scala
What do you think? I like it, but I have a feeling I'll be in the minority 😀 
#scala 
Scala Contributors
Pre-SIP: Allow single-line lambdas after `:`
Summary This proposal is to allow a lambda expression following a : on the same line. Currently, we need a newline and indent after the arrow, e.g...
Funny, I wanted to write: "Why hasn't http4s cut a release in over 9 months?" 
#scala
GitHub
Release v0.23.31 · http4s/http4s
WarningThis broke binary compatibility in http4s-dsl in org.http4s.dsl.Statuses. A release that restores compatibility across the 0.23 series is a...
There is a new beginner friendly tutorial about debugging Scala code in Intellij 👇 #scala
Build beautiful TUI apps with this Elm-style Scala library! ❤️ 
#scala #elm
GitHub
GitHub - mattlianje/layoutz: Simple, beautiful CLI output
Simple, beautiful CLI output. Contribute to mattlianje/layoutz development by creating an account on GitHub.
There's a good chance you have already used contramap (e.g. when creating a Circe encoder), but understanding the concept can be challenging. This article explains it using a practical example. #scala 
Understanding Contramap
jsoniter is known as one of the fastest JSON libraries. The latest patch version significantly boosts codec derivation! There are also other new features, such as support for simple opaque types and named tuples. https://www.reddit.com/r/scala/comments/1ng3cn3/meet_new_release_of_jsoniterscala_with_much/ #scala
Great article, but as I've said before, I need more examples showing how capabilities can help in real-world scenarios. When it comes to getting data from an API, converting it, and mixing it with something else from a config or DB, combinators 🐱 are all I need. #scala
Nicolas Rinaudo - Controlling program flow with capabilities
A nice little Scala 3 badge you can add to your repository 👇 #scala 
Sad news, ScalaIO announced its last conference! 😥 Another signal to all of us to put our internal conflicts aside or soon there will be no community left to fight over. https://www.reddit.com/r/scala/comments/1nfznuj/scalaio_organization_latest_news/ #scala
Ok, this MVC framework looks really incredible! It's built on top of http4s but with a focus on developer happiness and productivity. 👏 #scala 
Architecture
docs
The importance of making illegal states unrepresentable is even greater in the age of AI agents! 🤖
What is your convention for handling errors: YOLO, full-on defensive, or a separate Either channel? 
#scala
Random Scala Tip #534: Adopt an Error Handling Convention for `Future` - Daniel Beskin
When working with `Future` be explicit about your error handling convention, and make sure your whole team and codebase are aligned to it.
So refreshing to read a post about enriching the Scala community, not leaving it! An example of making the ecosystem better for everyone ❤️ #scala 
Silva Bytes
Chez: A Scala Library for JSON Schemas, OpenAPI Spec generation & building AI Apps
A brief disclaimer
I’m still relatively new to Scala, I picked up Scala around 2 years ago and have not been able to put it down. I built a care...
Good news for those who like to write spaghetti code 😂 #kotlin 
Kotlin Help
What
Even though the concept of context functions is pretty simple, I'm still not used to them 🤷 #scala
Nicolas Rinaudo - Effects as Capabilities
I would really appreciate an IntelliJ version just for Scala, without all the Java bloatware. #scala #java 
Scala 3.7.3 is out! 🎉 It features a compiler lint that helps when you use a default value for a using parameter and there is also an explicit given in the scope. Also, enum items hashcode is now stable. #scala 
Scala 3.7.3 is now available!
"Notably, around 20% of attendees were new to Scala" 😳 #scala 
Scalac - Software Development Company - Akka, Kafka, Spark, ZIO
Scala Days 2025 Recap - a Scala community reunion
Scala Days 2025 Recap: Discover key insights on Scala 3, AI, and Akka from Lausanne. The future of tech and community growth.