Incremental Highlighting for Scala If an error is detected in a file but no one sees it, is it really highlighted? JetBrains (@jetbrains)

Yes, You Can Debug a Scala 3 Macro How to debug Scala 3 macros: profiling the compiler, print-debug helpers for types and ASTs, and attaching a JVM debugger to the compiler from Mill, sbt, scala-cli, VS Code or IntelliJ. Bartłomiej Kozak

Comparing effect systems in Scala: The Problem and Future Why Future was not enough and why effect systems started to emerge. Łukasz Biały (@lukasz_bialy)

Comparing effect systems in Scala: Cats Effect and ZIO Fight of the titans. Łukasz Biały (@lukasz_bialy)

Comparing effect systems in Scala: Kyo, Gears, and Ox The radical trio. Łukasz Biały (@lukasz_bialy)

shutting down the goldmine This is a follow-up of sbt and the miners of the wild west, in which I described the story of sbt/sbt getting listed on a crypo-based, open source bounty program called Gittensor, and subsequently getting a high volume of contributions from dozens of users, many of whom using AI tools. Well, I’m shutting it all down. Eugene Yokota (@eed3si9n)

Why Scala is more fun than Java Scala lets you write object-oriented code, functional code, and compact expressive code without constantly fighting ceremony. Java has become much better over time, but Scala still feels more playful when you want to model data, transform collections, and build tiny abstractions fast. Mike Møller Nielsen (@MikeMllerNiels2)

Support per-field update with Scala Slick This blog serves as a documentation for PlayFast, an opinionated production-ready PlayFramework template that makes you productive Tanin Na Nakorn (@tanin)

Staged Parser Combinators in Scala: Have Your Cake and Eat It (Too) In the Scala ecosystem, macros are typically relegated to eliminating boilerplate or deriving type classes. However, with support for quotation-based staging, we get something more like macros on steroids. Alex Moreno

Rust for Scala and Haskell Developers: A Surprisingly Familiar Journey by Pawel Szulc A recording from the Func Prog Sweden conference 2006. Paweł Szulc (@EncodePanda)

The GENPres project Medication errors are one of the most common sources of medical complications. However, the medication process, prescribing, preparing and administration of medication is als one of the most thoroughly protocolized medical processes. In order to achieve a safe and efficient medication workflow the following human error prone activities can be solved by Clinical Decision Support Software (CDSS). Casper Bollen

wick A zero cost type safe Apache Spark API. Joan Goyeau (@JoanG38)

Scone Scone is a media player for torrents build with Scala.js and Electron. Jamie Thompson (@bishabosha)

sbt-steps 0.3.0 sbt-steps allows you to use native sbt tasks and settings to create a CI flow with features like skipping steps, continue-on-error and reports. It integrates well with GitHub Actions, but other CI systems too. This new release focuses on better performance by using sbt task parallelization. Some other fixes are included as well. Adriaan

proteus-diff Based on Scala, proteus-diff is a command-line tool that detects and classifies changes between two .proto schemas. It tells you whether a schema change is safe, potentially breaking, or definitely breaking — useful for CI checks, code reviews, or local validation before committing. Pierre Ricadat (@ghostdogpr)

The Scala Workshop CFP, Jun 29th, Brussels, Belgium CFP ends on Mar 23th! Scala Workshop

Announcing Scala Days 2026 We are very happy to announce that the Scala Days 2026 conference will be taking place 12 - 13 October in Berlin, Germany, one of Europe’s most vibrant tech and open source hubs, known for its strong culture of collaboration and its growing role in advancing digital sovereignty through open technologies. Scala Contributors (@scala_lang)

J On the Beach, Oct 29th - 30th, Malaga, Spain A Pure Tech and Fun Conference for All Things Data. Join the CFP, open until March 31st. J On The Beach (@JOTBConf)

Lambda World, Oct 29th. - 30th, Malaga, Spain Experience the sunshine, the code, and the unforgettable vibe that made Lambda World 2025 shine in Málaga. CFP open until March 31st. Lambda World (@lambda_world)

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