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April 18th, 2019, ISSUE 270

READING

Akka 2.6 roadmap

Akka 2.5.0 was released 2 years ago, and since then we have released 22 patch releases. This means that it’s high time for a new minor release.
Akka Team (@akkateam)
Extending MapR Database Queries Using Scala Polymorphic Types

One of the most interesting and well-known paths to query MapR data tables is using the OJAI API since it is suitable for most use cases and we can issue queries in many languages.
Nicolas A Perez (@anicolaspp)
Marvels of functional programming: Composing effects with monads

A very detailed take on explaining the mechanics on monads.
Anil Thaplar (@Thaplar)
Traverse your HLists for fun and profit

Surprisingly not mentioned often, there’s Typelevel kittens, a library for typeclass derivation for Cats, which also has few extra things. In particular, there’s an ability to sequence and traverse an HList.
Oleg Pyzhcov (@oleg_pyzhcov)
Did Functional Programming get it wrong?

Writing functions is easy. Gluing them together is not. The unfolding Scala mess (ZIO being a notable exception) is starting to make programmers wonder where Functional Programming (FP) is really going.
reinman (@datacountry_ai)
Demystifying Functional Reactive Programming

In this article I want to get a hold of all the buzz words. So what is Functional Programming, Reactive Programming, and Functional Reactive Programming, how the heck do they relate to each other and why should you care?
Timo Stöttner
Structuring Functional Programs with Tagless Final

Learn how to achieve modularity with this pattern.
Andreas Jim-Hartmann (@andyjim77)
Minutes of the 12th meeting of the Scala Center, Q1 2019

What's cooking?
Scala Center (@scala_lang)

PRESENTATIONS

Homegrown Scala Collections - Part 30 - Hash and other Trees (Ordering)

In this video we will try to embed Ordering into Trees and face extraordinary challenges.
DevInsideYou (@DevInsideYou)

EVENTS

ScaLATAM, Montevideo, Uruguay, May 2nd - 3rd

Don't miss the first Scala Conference in Latin America. Use promo code "scalatimes" to get 25% discount for our readers!
ScaLATAM
flatMap(Oslo), Oslo, Norway, May 8th - 9th

Use promo code SCALATIMES for a discount for our readers!
flatMap(Oslo) (@flatmaposlo)
Reactive Horizons, Orlando, Florida, May 31st

This conference is a unique opportunity to learn about top trending topics from today's Fast Data experts!
Reactive Horizons
CFP for LX Scala & Reactive, Lisbon, Portugal, July 4th - 5th

Don't miss the CFP deadline which is May 1st!
LX Scala & Reactive (@LX_Scala)
CFP for Lambda World, Cádiz, Spain, October 17th - 18th

Deadline for submissions is June 1st.
Lambda World (@lambda_world)
CFP for Scala Italy, Bologna, Italy, September 20th - 21st

Submit your proposal before May 5th.
Scala Italy (@ScalaItaly)
Scala in the City - Thursday 25th of April

Automatic differentiation in Scala by Xiayun Sun & Descriptions, APIs and Tapirs by Adam Warski
Scalainthecity (@Scalainthecity)

RELEASES

Metals v0.5.0

Metals is a language server for Scala that works with VS Code, Atom, Vim, Sublime Text and Emacs. This release introduces new features, performance improvements and bug fixes.
Metals contributors

VARIA

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