This week in #Scala (May 27, 2025)

Welcome to the new edition of #ThisWeekInScala!

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

New Content

• Business4s & GSoC 2025: 3 Exciting Projects and Not-So-Usual Approach

• Workflows4s Finally Released - You Might Hate Your Business Processes a Little Less

• Unison, Scala, Distributed Systems and Delightful Programming

• A Distributed System from scratch, with Scala 3 - Part 3: Job submission, worker scaling, and leader election & consensus with Raft

• An Algebra of Thoughts: When Kyo effects meet LLMs

• Visionaries, Rebels and Machines: The story of humanity’s extraordinary journey from electrification to cloudification with some Scala community mentions

Events

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

• Dallas Scala Enthusiasts - In-Person Meetup

• Recursion Schemes & Mill with our special guest Li Haoyi, Mon, Jun 2, Scala Hamburg

• Fourth Func Prog Sweden 2025 – Online, Tue, May 20

• The CfP for Scala Days 2025 is now open

• JConf Mexico 2025

• The Scala Workshop 2025, Singapore

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

Releases

• sbt 1.11.0 released

• Databricks Runtime with Scala 2.13 support released

• Mill 0.12.13 is out with updated support for publishing to central.sonatype.org

• Kyo 0.19.0

• yaes 0.3.0

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)