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Scala 3

A series of posts on Scala version 3, what’s new and why, and how to use its new features effectively. For more details, visit http://programming-scala.org/.

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Dean Wampler in Scala 3

Mar 26, 2022

Scala 3: “Erased” Definitions

Martin Odersky and the EPFL Scala Center continue experimenting with potential new features in Scala 3…

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Dean Wampler in Scala 3

Jan 16, 2022

Safer Exceptions in Scala 3

I mentioned in What’s Changed Since Scala 3.0.0 that Scala 3.1 introduced an experimental feature for safer…

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Dean Wampler in Scala 3

Oct 10, 2021

The Value of Parametric Polymorphism

I’m giving a talk at Scale by the Bay, October 28th, on Lessons Learned from 15 Years of Scala…

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Dean Wampler in Scala 3

Sep 4, 2021

Scala 3: What’s Changed Since Scala 3.0.0

The Scala team continues to refine Scala 3, fixing bugs, refining existing features…

Dean Wampler in Scala 3

Jul 5, 2021

Scala 3: Macros

Update May 22, 2022: Michel Charpentier correctly pointed out that the arguments don’t need to be by-name if they are inlined…

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Dean Wampler in Scala 3

Jun 27, 2021

Scala 3: A Look at “inline” (and “Programming Scala” is Now Published!)

Update April 3, 2022: I added the…

Dean Wampler in Scala 3

May 14, 2021

Scala 3: It’s Here!

Scala 3.0.0 is now final!

Dean Wampler in Scala 3

Apr 28, 2021

Scala 3: Safer Pattern Matching with Matchable

Late in the Scala 3 development process, a new type scala.Matchable was…

Dean Wampler in Scala 3

Mar 28, 2021

Scala 3: Infix Operator Notation

For a long time, Scala has supported a useful “trick” called infix operator notation. If a method…

Dean Wampler in Scala 3

Mar 6, 2021

Scala 3: Type Lambdas, Polymorphic Function Types, and Dependent Function Types