Getting started with recursion schemes using Matryoshka Learn the basics of recursion schemes. Wiem Zine

Friendly Functional Programming An introduction to the functional paradigm. Wiem Zine

Building the Hangman Game using ScalaZ ZIO A summarization of a talk given by John A De Goes in Kiev, with code samples. Abhishek Srivastava

Anatomy of semigroups and monoids Discover important typeclasses. Martin Menestret (@mmenestret)

The Scala 2.12 / 2.13 Inliner and Optimizer The goal of this article was to explain why the Scala optimizer exists and give a rough explanation what it can and cannot do. It also showed how to configure and use the optimizer in your project. Lukas Rytz (@lrytz)

Functional Programming and living past the edge of civilization An interview, where John answers a few interesting questions, like How can Scala folks learn from Haskell and vice versa? John A De Goes (@jdegoes)

Homegrown Scala Collections - Part 12 - Big O Notation In this video we will learn how to determine the growth rate of your functions in order to see how they behave with respect to their input. DevInsideYou (@DevInsideYou)

Task's Bracket, Cats-Effect's Resource and Streaming A tutorial on usage of Task.bracket, Cats-Effect’s Resource and how that can be used in combination with streaming data types like Observable and Iterant. Alex Nedelcu (@alexelcu)

Lambda Days, Kraków, PPoland, February 21-22, 2018 Use promo code SCALArlz10 for a 10% discount for our readers! LambdaDays (@LambdaDays)

Win a ticket for Scala eXchange We are running two competition simultaneously to give you all the best opportunity of winning, check them out! Signify Technology (@Signify_Tech)

Tech Triveni, New Delhi, India, November 18th, 2018 Use code TechTriveni10 for a 10% discount for Scala Times readers! Knoldus Inc. (@Knolspeak)

$100 discount for Scala Times readers for "Functional Scala" training by John A De Goes in London Use code "ScalaTimes" and join the training on Dec 10-12. Signify Technology (@Signify_Tech)

os-lib OS-Lib is a simple Scala interface to common OS filesystem and subprocess APIs. Li Haoyi (@li_haoyi)

typed-sql A frontend library for writing doobie queries. Vadim Chelyshov (@_dos65)

mist A serverless proxy for Spark cluster. Mist provides a new functional programming framework and deployment model for Spark applications. Mist contributors

Monix 3.0.0-RC2 The major theme of this release is compatibility with Cats-Effect 1.0.0. Monix contributors

Spark 2.4.0 This release adds Barrier Execution Mode for better integration with deep learning frameworks, introduces 30+ built-in and higher-order functions to deal with complex data type easier, improves the K8s integration, along with experimental Scala 2.12 support. Spark contributors

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