It's Advent of Code time again. 🎄 If you haven't tried Scala yet, this is the perfect opportunity. But don't take my word for it, check out what these three random guys on the internet have to say. 🤣 👇 #scala #AdventOfCode 
Matej Cerny
npub17hpl...yx66
Functional programming enthusiast with strong foundations in the relational databases world #FP #Scala #Postgres
Those tools the guys are talking about are honestly awesome. In short, when you want to communicate with another service, you simply add a contract to the central registry. Everything else is generated automatically, so you only need to implement the business logic without worrying about JSON serialization or route configuration. #scala
Pattern matching on interpolated strings is powerful, but can be a bit cryptic. In such cases, I still prefer .contains #scala 
Pretty neat utility that can launch the Scala Metals MCP server without the need for a supported editor. 👍 #scala #mcp 
GitHub
GitHub - jpablo/metals-standalone-client: Minimal Metals stand alone client that allows running the metals mcp server
Minimal Metals stand alone client that allows running the metals mcp server - jpablo/metals-standalone-client
All recordings from @Scala Days 2025 are online! I'm planning to share some highlights separately soon. #scala https://www.youtube.com/@ScalaDaysConferences/videos
Metals 1.6.4 is out 🎉 It features improvements for Java, VS Code lenses and sbt error diagnostics. Automatic imports on copy-paste were also reworked. Plus, this release is already prepared for Scala 3.8. #scala
Metals v1.6.4 - Osmium | Metals
🧠 Scala 3 Quiz: What are the inferred types here? #scala 
🎉 Another minor version of Scala 2 is out, featuring JDK 26 support. As usual, check the release notes for more details 👇 #scala 
GitHub
Release Scala 2.13.18 · scala/scala
The Scala team at Akka is pleased to announce Scala 2.13.18.
This release fixes several regressions from 2.13.17. It is compatible with JDKs 8 to 2...
Java devs, have you noticed that List, Optional, and CompletableFuture all behave like containers you can map over? Yet, the syntax is inconsistent. Sadly, you can't write an interface to enforce a common API, at least not in Java. Search for "Higher-Kinded Types" if you're curious how other languages like Scala solve this. #java 
Java devs, have you noticed that List, Optional, and CompletableFuture all behave like containers you can map over? Yet, the syntax is inconsistent. Sadly, you can't write an interface to enforce a common API, at least not in Java. Search for "Higher-Kinded Types" if you're curious how other languages like Scala solve this. #java 
The greatest improvement over the years is that now we send CSV files via an S3 bucket instead of SFTP.
The biggest shift in Scala 3.8 is that the standard library is finally being built with Scala 3 (up until now, it was still Scala 2!). So, what changes for us end users? Absolutely nothing! And that’s beautiful. 🧘♂️ #scala
"Better-fors" are leaving preview with the release of Scala 3.8. It looks like a small DX upgrade, but under the hood, the desugaring is a lot simpler, skipping redundant `.map` calls. See the official documentation. #scala 
Better fors
Apparently, there was an experiment called "Lasca" which tried to shift #Scala more towards #Haskell. Based on the readme, it was planned to feature full type inference and be LLVM based. Funnily enough, in Czech 🇨🇿 the name means "Love" ♥️ 
GitHub
GitHub - nau/lasca-compiler: Lasca is Scala shifted towards Haskell.
Lasca is Scala shifted towards Haskell. Contribute to nau/lasca-compiler development by creating an account on GitHub.
Quick clarification☝️Just because Scala itself targets JDK 8 doesn't mean your app has to! You're free to use any JDK 8 or newer. Scala 3.8 will raise the minimum required JDK to 17, but you'll still be able to use the latest JDKs (21, 25, etc.) for your own projects. #scala #jdk View quoted note →
Let's look at four possibilities that JDK 17 adoption could unlock for the upcoming #Scala versions. 🧵
With #Scala 3.8 around the corner, let's recap its biggest changes:
1️⃣ JDK 17 as a minimum version
2️⃣ "Better fors" (SIP-62)
3️⃣ Standard library built with Scala 3
The biggest improvements in #Scala 3 are not enums or nicer implicits syntax, but:
🤝 Making binary compatibility across versions possible (via TASTy)
⚡ A built-in interactive compiler (instead of a batch tool)
🔗 A modular architecture that makes new features easier to add
🎉 Scala 3.7.4 is officially out, bringing several fixes and backports. See the full changelog 👇 #scala 
GitHub
Release 3.7.4 · scala/scala3
Highlights of the release
Bump Scala CLI to v1.9.1 (was v1.9.0) #23962
Make coverage more similar to the one in Scala 2 #23722
Deprecations for r...
Streams are a powerful tool for control flow, covering topics such as event handling, file processing, reading from the database... Learn more from Zainab Ali's talk at the London Scala User Group. #scala