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October 16th, 2026, ISSUE 630

READING

VirtusLab assumes responsibility for Scala 2 maintenance

VirtusLab will maintain Scala 2.12 and 2.13 as long as necessary and will also continue to improve the Scala 2-to-3 migration story.
VirtusLab (@VirtusLab)
Scala Packages

Every Scala library on Maven Central for JVM, Scala.js, Scala Native, sbt and Mill, kept fresh from the Maven index and deps.dev.
Salar Rahmanian (@SalarRahmanian)
How we slashed the size of our search cache by 74%

What this experience taught us is that when working at this scale, you can’t really slap cache on top of anything and forget about it. Another lesson this taught us is that data structures are fun (nah, we knew that already) and that knowing their implementation details is an absolute necessity when treading on your application’s hot path.
Bertrand Junqua

VIDEOS

Videos from Scala Days 2026

All the recordings are now available!
Scala Days (@scaladays)

RELEASES

Scala 3.10 released!

Pattern matching under strictEquality no longer needs CanEqual, new previews: relaxed lambda syntax, and referenceable package objects. Also: some deprecations, some fixes, and release packages now available as .deb and .rpm.
Scala Contributors (@scala_lang)
dimwit

A typed tensor library for Scala 3 that encodes tensor dimensions as types, so the compiler catches shape and axis mix-ups before runtime.
Marcel Luethi and Benjamin Meyer
dapr4s

Scala 3 library exposing Dapr building blocks as capture-checked capabilities.
Ondra Pelech
eezo

A Scala 3 web framework. Direct-style. The case class is the source of truth. Deploy with one command.
Riccardo Cardin and Daniel Ciocîrlan (@riccardo_cardin)
ATC (Agent with Tracked Capabilities)

A terminal coding agent that uses a Scala 3 REPL and a capability-typed API for file access, commands, HTTP requests and user interaction. Each snippet is compiled before execution. Capture checking restricts the capabilities it can retain, safe mode restricts available APIs, and the host checks configured permissions at runtime.
noti0na1 (EPFL)

EVENTS

Scala Summit 2026: A Full Day of Scala in the Bay Area, Oct 19th

Scala Summit 2026: A Full Day of Scala in the Bay Area. One day. One language (and AI).
SF Scala (@sfscala)
Chicago Scala Meetup: Scala + AI intersection, Oct 22nd

Scala + AI intersection - where are we heading next? Fresh Insights Straight from Scala Days 2026, with a guest talk by Daniel Spiewak. If you prefer to sign up via Luma, use: https://luma.com/irc3nnk3
VirtusLab (@VirtusLab)
Scala Summit, Oct 19th, San Francisco

Scala Summit 2026: A Full Day of Scala in the Bay Area. One day. One language (and AI).
SF Scala (@sfscala)
New York Scala Meetup: Scala + AI intersection, Octh 26th

Scala + AI intersection - where are we heading next? Fresh Insights Straight from Scala Days 2026. If you prefer to sign up via Luma, use: https://luma.com/zp23z8wi
VirtusLab (@VirtusLab)
J On the Beach, Oct 29th - 30th, Malaga, Spain

A Pure Tech and Fun Conference for All Things Data.
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.
Lambda World (@lambda_world)

VARIA

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