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September 12th, 2019, ISSUE 291

READING

Squeezing extra productivity out of Ammonite Scala REPL

How to run code snippets in a smooth way?
Krzysztof Ciesielski (@kpciesielski)
Akka family build infrastructure

An overview of some sbt configurations used across Alpakka, Alpakka Kafka and other Akka family projects.
Akka Team (@akkateam)
Learning Akka Typed from Classic

Step-by-stepp Akka lesson on the original Actor APIs.
Akka Team (@akkateam)
On Eliminating Error in Distributed Software Systems

An expansion of What Lies Between: The Challenges of Operationalising Microservices talk from QCon London 2019.
Colin Breck (@breckcs)
Error Handling in Functional Applications - from Monad Transformers to ZIO

Finding the best solution for real-world problems.
Assen Kolov (@kolov)
Make your program testable

It’s important to test the code...
Wiem Zine (@WiemZin)
Type erasure

So, how does the Parallel change not break bincompat?
Travis Brown (@travisbrown)
Cats Effect 3

The proposal for Cats Effect 3 and general overview of Cats Effect.
Daniel Spiewak (@djspiewak)
Introducing sbt-make

An sbt plugin that adds syntax to write make style incremental tasks directly in a build.sbt file.
Ethan Atkins (@_ethan_atkins)
Comparing Performance between Apache Spark and PySpark

Which one is faster?
Sahand Faraz Zarrinkoub
Writing Custom Wart for Scala

An introduction to WartRemover.
Tapan Vaishnav
Syto - pure Scala library for filter design/implementation and digital signal processing

A bridge between Spark Scala logic and Python's Scipy.
Oleksandr Tarasenko

PRESENTATIONS

The "real programmer" myth

How to hire a developer who will save your project?
Maciej Gorywoda (@makingthematrix)
Getting started with Ammonite - A Modernized Scala REPL

In this video we will install and play around with the Ammonite REPL, which is an alternative to the scalac REPL.
DevInsideYou (@DevInsideYou)

EVENTS

Scala.sphere.it, Kraków, Poland, October 7th-8th

Use special promo code 'media-partner-at-sphere.it' for a 20% discount.
ScalaSphere (@ScalaSphere)
Lambda World, Cádiz, Spain, October 17th - 18th

Use our link to get a special discount for Scala Times readers!
Lambda World (@lambda_world)
Code Mesh, London, November 7th - 8th

Get your tickets now!
CodeMesh (@CodeBEAMio)
BeeScala, Ljubljana, Slovenia, November 21st - 21rd

Don't miss your ticket for this unique conference!
BeeScala (@BeeScalaConf)
CFP for ScalaConf.ru, Moscow, Russia, November 26th

Don't miss the CFP deadline which is September 26th!
ScalaConf.ru
Lambda Days, February 13th -14th 2020, Kraków, Poland

Call for talks and very early bird tickets are both open!
Lambda Days (@LambdaDays)

RELEASES

Scala 2.12.10

Shortly, a few improvements have been done: fixed regression in large string interpolations with non-String typed splices and classpath when JARs have 'a.b' entries beside 'a/b and reverted "Generate shallower ASTs in pattern translation".
Scala Lang Team
Alpakka Kafka 1.1.x

The release changes the internals of how offset commits are sent to the Kafka broker.
Akka Team (@akkateam)
zio/delegate

This package defines an annotation and a typeclass that simplify working with mixins and proxies in scala.
ZIO Team
Cats 2.0.0

Version 2.0.0 includes two major pull requests: Infer dependent parameter in NonEmpty/ParallelTests/Laws and Remove unused type parameter for Parallel instances.
Typelevel (@typelevel)
Monix 3.0.0

The latest release with several updates, e.g.: to Cats and Cats-Effect 2.0.0 and Minitest to 2.7.0.
Monix (@monix)
fs2 2.0.0

Functional Streams for Scala. This release features support for Cats 2.0.0 and Cats Effect 2.0.0.
Functional-Streams-for-Scala Team

VARIA

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