Blog

Here you can find detailed announcements for new releases, some interesting use cases, and the rationale behind some of the language's design decisions.

Articles

authors/bcardiff.jpg Brian J. Cardiff 04 Sep 2018

Using CircleCI 2.0 for your Crystal projects

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authors/bcardiff.jpg Brian J. Cardiff 09 Mar 2018

Crystal Automated Release

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authors/robacarp.jpg Robert Carpenter 25 Jan 2018

Amber - Crystalizing Rails and Phoenix

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authors/marksiemers.jpg Mark Siemers 08 Jan 2018

Top 5 Reasons for Ruby-ists to Use Crystal

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authors/nditada.jpg Nicolás di Tada 19 Dec 2017

This is not a new year’s resolution

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authors/sdogruyol.jpg Serdar Doğruyol 03 Nov 2017

Crystal Survey 2017 Results

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authors/peter-schols.jpg Peter Schols
authors/ivo-balbaert.jpg Ivo Balbaert 27 Oct 2017

Diploid and Crystal

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authors/neuralegion.jpg NeuraLegion 25 Sep 2017

NeuraLegion and Crystal

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authors/sdogruyol.jpg Serdar Doğruyol 31 Jul 2017

Launching the 2017 State of Crystal Survey

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authors/mdavid.jpg María Inti David 23 Mar 2017

Announcing Crystal CodeCamp SF2017

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authors/spalladino.jpg Santiago Palladino 24 Feb 2017

State of Crystal at 0.21

What did we do since new year?

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authors/lschutz.jpg Leonard Schütz 06 Jan 2017

The Charly programming language

Guest blog post by Leonard Schütz

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authors/spalladino.jpg Santiago Palladino 29 Dec 2016

Crystal new year resolutions for 2017: 1.0

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authors/bcardiff.jpg Brian J. Cardiff 26 Dec 2016

INSERT INTO shard VALUES ("crystal-db")

One db api to rule them all

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authors/bcardiff.jpg Brian J. Cardiff 09 Sep 2016

A story of compromises and types

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authors/asterite.jpg Ary Borenzweig 15 Jul 2016

Fibonacci benchmark

Ruby vs. Crystal

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authors/bcardiff.jpg Brian J. Cardiff 28 Jun 2016

Split the repo!

where the git...

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authors/bcardiff.jpg Brian J. Cardiff 26 May 2016

Heroku Buildpack

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authors/mdavid.jpg María Inti David 18 Feb 2016

Buenos Aires Crystal Meetup

First meetup in Argentina

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authors/asterite.jpg Ary Borenzweig 24 Dec 2015

The future of Crystal

A short story

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authors/bcardiff.jpg Brian J. Cardiff 05 Sep 2015

Crystal tools

Tools for Atom and everybody

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authors/asterite.jpg Ary Borenzweig 24 Aug 2015

It's a typeof magic

It's magic!

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authors/asterite.jpg Ary Borenzweig 01 Apr 2015

Auto

A smarter compiler

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authors/asterite.jpg Ary Borenzweig 04 Mar 2015

Internals

Memory representation

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authors/asterite.jpg Ary Borenzweig 06 Dec 2014

Another language

What if...

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authors/asterite.jpg Ary Borenzweig 27 Apr 2014

Type inference rules

Part 2 of the type inference series

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authors/waj.jpg Juan Wajnerman 05 Dec 2013

Garbage Collector

Enabled the Boehm GC

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authors/asterite.jpg Ary Borenzweig 14 Nov 2013

Good bye Ruby Thursday

Bootstraped the compiler

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authors/bcardiff.jpg Brian J. Cardiff 23 Sep 2013

Type inference (part 1)

How type inference works

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authors/asterite.jpg Ary Borenzweig 15 Sep 2013

to_proc

Shortcut syntax for writing one-argument blocks

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authors/asterite.jpg Ary Borenzweig 04 Sep 2013

Happy birthday, Crystal!

Crystal is one year old

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authors/asterite.jpg Ary Borenzweig
authors/waj.jpg Juan Wajnerman 10 Jul 2013

Hello World

The famous Hello World program written in different ways in Crystal

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More articles

Release Notes

Crystal 0.30.1 released! 12 Aug 2019
Crystal 0.30.0 released! 01 Aug 2019
Crystal 0.29.0 released! 05 Jun 2019
Crystal 0.28.0 released! 17 Apr 2019
Crystal 0.27.2 released! 05 Feb 2019
Crystal 0.27.1 released! 30 Jan 2019
Crystal 0.27.0 released! 01 Nov 2018
Crystal 0.26.1 released! 27 Aug 2018
Crystal 0.26.0 released! 09 Aug 2018
Crystal 0.25.1 released! 28 Jun 2018
Crystal 0.25.0 released! 15 Jun 2018
Crystal 0.24.2 released! 09 Mar 2018
Crystal 0.24.1 released! 23 Dec 2017
Crystal 0.23.1 released! 13 Jul 2017
Crystal 0.23.0 released! 29 Jun 2017
Crystal 0.22.0 released! 01 Apr 2017
Crystal 0.21.0 released! 21 Feb 2017
Crystal 0.20.5 released! 22 Jan 2017
Crystal 0.20.4 released! 07 Jan 2017
Crystal 0.20.3 released! 24 Dec 2016
Crystal 0.20.1 released! 06 Dec 2016
Crystal 0.20.0 released! 22 Nov 2016
Crystal 0.18.0 released! 14 Jun 2016
Crystal 0.17.0 released! 17 May 2016
Crystal 0.16.0 released! 05 May 2016
Crystal 0.15.0 released! 02 Apr 2016
Crystal 0.14.1 released! 21 Mar 2016
Crystal 0.13.0 released! 07 Mar 2016
Crystal 0.12.0 released! 16 Feb 2016
Crystal 0.11.0 released! 23 Jan 2016
Crystal 0.10.0 released! 23 Dec 2015
Crystal 0.9.1 released! 30 Oct 2015
Crystal 0.9.0 released! 16 Oct 2015
Crystal 0.7.7 released! 04 Sep 2015
Crystal 0.7.5 released! 30 Jul 2015
Crystal 0.7.4 released! 23 Jun 2015
Crystal 0.7.3 released! 07 Jun 2015
Crystal 0.7.2 released! 26 May 2015
Crystal 0.7.0 released! 30 Apr 2015
Crystal 0.6.1 released! 04 Mar 2015
Crystal 0.6.0 released! 12 Feb 2015
Crystal 0.5.9 released! 07 Feb 2015
Crystal 0.5.6 released! 31 Dec 2014
Crystal 0.5.4 released! 04 Dec 2014
Crystal 0.1.0 released! 19 Jun 2014

More release notes