This week in #Scala (Jun 30, 2025)

Welcome to the new edition of #ThisWeekInScala!

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

New Content

• Scala Highlights, June 2025 edition

• Keynote: Making Capabilities Safe and Convenient - Martin Odersky

• Suspension: the magic behind composability (or "The Kyo Monad")

• Fundamental Concurrency Problems and Solutions

• Pekko + Playwright Web Crawler

• Anatomy of a Scala Game Server

• ArrayView: Scala library for multidimensional tensors, packed into flat arrays

• Forest Fire Simulation, A scalable, cross-language, probabilistic wildfire simulation engine for research, visualization, and experimentation.

• Inside ZIO Hackathon: Battle to the Top

• JVM Rainbow - Mixing Scala Java Kotlin and Groovy

• Developer Ecosystem Survey 2025

Events

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

• Scalator: Stream Composition with Kyo & Community Revival!, Wed, Jul 9, 2025, 6:00 PM, Toronto

• DEVJVM: Call for Speakers

• The Scala Workshop 2025, Singapore

Releases

• New scalajs-gradle is out

• S2D migrated to Scala Native

Learning Materials

• Online Courses (MOOCs) from The Scala Center

• Learn Scala with Alvin Alexander

• 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)