Arrow 1.1.4 & 1.1.5 is now available
Arrow, a functional companion to Kotlin, releases version 1.1.4 & 1.1.5
January 17 2023
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Posts
Kotest Arrow extensions 1.3.0 is now available
Kotest Arrow extensions, a set of libraries accompanying the Kotest testing framework for Kotlin with combinators and oper...
November 21 2022
Arrow 1.1.3 is now available
Arrow, a functional companion to Kotlin's Standard Library, releases version 1.1.3
September 20 2022
New Arrow Optics copy makes data transformation easier
A new copy method in Arrow Optics improves the way you work with immutable data. We look at its usage, and its (fairly sho...
September 14 2022
SuspendApp: A New Arrow Library
Reason about resource-safety in the same way you reason about Structured Concurrency with SuspendApp!
August 16 2022
Arrow put on a big show at Kotlin Dev Day
Arrow, a Functional companion to Kotlin's standard library, was repeatedly showcased at the recent community conference.
June 14 2022
Arrow 1.1.0 is now available
Arrow, a functional companion to Kotlin's Standard Library, releases version 1.1.0
May 4 2022
Announcing Arrow Analysis - a Kotlin compiler plug-in
Arrow Analysis is a Kotlin compiler plug-in that supercharges your compilation plugin with new checks to make your code sa...
February 2 2022
Top 10 Functional Programming Posts from 2021
The top 10 functional programming blog posts of 2021 from 47 Degrees.
December 21 2021
Effects and Contexts in Kotlin
Learn how to inject abstractions in Kotlin in a lightweight mode using contexts, and how to model more complicated effects.
November 30 2021
New releases for Swift, Arrow, and more FP news | Lambda World News
Swift 5.5, Arrow 1.0, and other news and updates from the Functional Programming community.
September 27 2021
Arrow 1.0 is now available
Arrow, a functional companion to Kotlin's Standard Library, has reached version 1.0.
September 20 2021
Functional Domain Modeling in Kotlin - Validation
Learn how to leverage Functional Domain Modeling to fully utilize the Kotlin type system and prevent bugs.
April 13 2021
Arrow 0.12.0 & 0.13.1 is now available
Arrow 0.12.0 & 0.13.1 is now available, featuring streamlining of the library for 1.0.0.
April 1 2021
Functional Domain Modeling in Kotlin
Learn how to leverage Functional Domain Modeling to fully utilize the Kotlin type system and prevent bugs.
February 11 2021
Repeating suspended effects in Kotlin
Learn how to repeat any suspended effects in Kotlin using the power of repeat and the Schedule data type from Arrow Fx Cor...
November 27 2020
Technology Radar Promotes Arrow to 'Adopt'
Arrow has been promoted as the functional companion for Kotlin's standard library.
October 28 2020
Arrow 0.11.0 is now available
Arrow 0.11.0 is now available, featuring bug fixes and new features.
September 9 2020
Arrow 0.10.5 is now available
Arrow 0.10.5 is now available. This is the last planned release for the `0.10.x` series and includes many bug fixes and a ...
April 2 2020
IO integration with kotlinx.coroutines
Showcasing the new Arrow integration module for KotlinX Coroutines
March 2 2020
New Arrow website launches
A new website for the Arrow family of libraries just launched, showcasing the many benefits of this open source compilatio...
December 19 2019
Conway's Game of Life using Kotlin and Arrow
A solution to Conway's Game of Life using Functional Programming in Kotlin
December 12 2019
KotlinConf 2019: Learn about Arrow Meta with 47 Degrees
47 Degrees is in Copenhagen as a sponsor of KotlinConf this December 4th through the 6th, 2019. Stop by our booth to learn...
December 4 2019
Our polyglot take on the Global Day of Coderetreat
Take the challenge of implementing Conway's Game of Life using FP in Swift, Kotlin, Scala or Haskell!
November 15 2019
Arrow v0.10.3 is now available
Arrow v0.10.3 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.
November 15 2019
Arrow v0.10.2 is now available
Arrow v0.10.2 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.
October 28 2019
Introducing Helios for Kotlin
{Helios} is a purely functional JSON library for Kotlin built on Arrow
June 12 2019
Arrow Playground is now available
Arrow Playground is now available. Now you can embed Arrow code snippets wherever you want!
April 11 2019
Arrow v0.9.0 is now available
Arrow v0.9.0 is now released. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.
March 12 2019
The Traverse Typeclass: Use cases in Kotlin with Arrow
Dive deep into use cases of the Traverse Typeclass used in Arrow for Kotlin.
January 29 2019
Introducing Bow - Functional Programming for Swift
Bow 0.3.0 is now released! Bow is a functional companion to Swift Foundation.
January 9 2019
Arrow v0.8.2 released
Arrow v0.8.12 is now available. Arrow is an open source library acting as a functional companion to Kotlin's Standard Libr...
January 2 2019
Arrow v0.8.1 released
Arrow v0.8.1 is now available. Arrow is an open source library acting as a functional companion to Kotlin's Standard Library.
November 15 2018
Arrow v0.8.0 now available
Arrow v0.8.0 is now released! Arrow is a functional companion to Kotlin's Standard Library.
November 5 2018
We're in Amsterdam for KotlinConf 2018
47 Degrees is in Amsterdam as a sponsor of KotlinConf this October 3rd through the 5th, 2018.
October 3 2018
Arrow v0.7.3 released
Arrow v0.7.3 is now available! Arrow is a functional companion to Kotlin's Standard Library.
August 23 2018
Arrow v0.7.2
Arrow v0.7.2 is now available! Arrow is a functional companion to Kotlin's Standard Library.
May 29 2018
Arrow v0.7.0 release now available
Arrow v0.7.0 is now available! Arrow is a functional companion to Kotlin's Standard Library.
April 9 2018
The Science Behind Functional Programming
A brief overview of the categories that are behind some computation patterns. Kotlin is used to show code examples, levera...
March 21 2018
Arrow v0.6.0 now available
We're pleased to announce the availability of Arrow v0.6.0!
January 22 2018
Λrrow - Functional Programming for Kotlin
A general overview of the newly released library Arrow for functional programming in Kotlin.
January 15 2018
Media
Turbocharging Kotlin Arrow Talking Kotlin
Raul Raja, Simon Vergauwen, and Alejandro Serrano chat about Arrow and how it adds functional paradigms and safety to Kotl...
June 28 2022
Simon Vergauwen Functional Jvm Meetup
Simon Vergauwen introducing Arrow Meta
December 6 2019
Raul Raja Simon Vergauwen Lambda World Cadiz 2019
Raúl Raja and Simon Vergauwen detail the powerful Arrow Meta library.
October 18 2019
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