This week in #Scala (Apr 28, 2025)

Welcome to the new edition of #ThisWeekInScala!

This blog keeps you updated with the latest Scala and Reactive programming news.

New Content

• Experimental Capture Checking: New Syntax for Explicit Capture Polymorphism

• Production-ready direct-style Scala

• Exploring JVM Innovations Through the Lens of Scala Native

• Tagless Final for Humans

• Programming a Language

• Durable Event-sourced Workflow Monad... Seriously!

• Better Scala builds with the Mill build tool

• Slow-Auto, Inconvenient-Semi: escaping false dichotomy with sanely-automatic derivation

• YAES: Thoughts on context-based capability passing style for state threading and integration into tagless-final application

• Scalar Conference 2025 - Summary & Highlights

Events

• Announcing Scala Days 2025 (Lausanne, Switzerland, 19–21 August 2025)

• The CfP for Scala Days 2025 is now open

• Announcing next Scala Meetup in Hamburg (Germany) on June 2nd

• Scala Stockholm Meetup @ Truecaller on May 15

• J On the Beach, May 14th - 16th, Malaga, Spain

• CFP for Lambda Days, June 12th-13th 2025, Krakow, Poland

Releases

• Gigahorse 0.9.0 released

• Announcing Scala.js 1.19.0

• IntelliJ Scala Plugin 2025.1 Is Out!

• Kyo 0.18.0 is out

• yaes 0.1.0 is out

Learning Materials

• Online Courses (MOOCs) from The Scala Center

• Functional Programming in Scala JetBrains course

• Scala 3 Metaprogramming Learning Resources

• The Functional Programming in Scala Course Is Out!

• Functional Declarative Design: A Comprehensive Methodology for Statically-Typed Functional Programming Languages

• Get Programming with Scala by Daniela Sfregola (30% off)

• Play for Scala (30% off)

• Grokking Functional Programming (30% off)

• Functional Programming for Mortals (pay as much as you want)

• Essential Effects by Adam Rosien (20% off)

• Programming in Scala, Fifth Edition

• Functional Event-Driven Architecture: Powered by Scala 3 is now 100% complete

• Zionomicon (code is thisweekinscala)

• Supercharge Scala Future | FP-Tower (50% off)