Blog

Interview with contributor Remilia Scarlet

Music playback projects in Crystal, games engines, and a bit of Lisp

Windows support in Crystal 1.9

GUI installer, load-time dynamic linking support, and more

Changes in the Steering Committee

Juan Wajnerman is stepping down from his position, with Beta Ziliani taking his place.

LLVM opaque pointer support has landed

Updates to the LLVM bindings bring support for LLVM 15+ and significant improvements in codegen performance in the next release.

Reveal type in Crystal

Porting reveal_type from Sorbet to Crystal.

Heads up: Crystal is upgrading its Regex engine

Crystal is upgrading from PCRE to PCRE2

Introduction: Mekhla Mukherjee, Community Manager

Crystal has a new Community Manager!

Automating smart buildings with Crystal: how PlaceOS creates and manages cohesive environments

Stephen Von Takach Dukai, Engineering Lead at PlaceOS, talks about their experience working with Crystal.

Welcome 2023!

The new year comes with lots of good news.

Latests news from the Crystal Team

A sneak peak of what kept the team busy in the past months

bdw-gc coroutines support

The support for multi-thread coroutines was gained by allowing the user to control the stack bottom of each thread.

Crystal's interpreter – A very special holiday present

A little F.A.Q. about this new feature

Preparing for Crystal 1.2

Lowering 32-bit support in favor of more popular platforms

Community moderators

Contributors may level up their involvement with the project with the new role.

Installing specific versions of Crystal's binary packages

Binary packages are now available for older releases on the Open Build Service

IRC channel moved to Libera Chat

Behind the scenes of the past two months

What’s been going on after the 1.0 release

Announcing new apt and rpm repositories

Binary packages built and distributed on the Open Build Service

Announcing Crystal 1.0 Conference

Let's celebrate the release

Crystal Core Team Announcements

A lot has been going on in the Crystal Core Team ...

Raw Crystal 2020

Watch all the talks of the event on YouTube

Organising a Crystal conference in 2020

An overview of what you can expect at Raw Crystal 2020 and some insight on the organisation process.

Announcing new apt and rpm repositories

We are moving to Bintray for apt and rpm repositories and we are adding stable, unstable, nightly channels.

Preparing our shards for Crystal 1.0

How we can prepare our shards for Crystal 1.0 or for upstream changes of dependencies at any time.

Shards 0.12.0 released!

Shards has a new development release.

Towards Crystal 1.0

The upcoming efforts to release Crystal 1.0

Alpine-based Docker images

Using Crystal with brand new Docker images based on Alpine Linux

Introducing shardbox.org

A platform for discovering the shards ecosystem.

Parallelism in Crystal

Use more of your core power

Snapcraft Summit Montréal

Updates in Crystal distributions and other news

Formatting pretty numbers for humans

Crystal 0.28.0 comes with new features for formatting neat numbers for human readers.

Watch: Run, change, build, repeat

How to improve the development cycle with a watch experience

Using CircleCI 2.0 for your Crystal projects

Crystal Automated Release

Lucky with Crystal - Fewer Bugs, Better Performance, Incredible Productivity

Amber - Crystalizing Rails and Phoenix

Top 5 Reasons for Ruby-ists to Use Crystal

This is not a new year’s resolution

Crystal Survey 2017 Results

Diploid and Crystal

NeuraLegion and Crystal

Launching the 2017 State of Crystal Survey

Announcing Crystal CodeCamp SF2017

State of Crystal at 0.21

What did we do since new year?

The Charly programming language

Guest blog post by Leonard Schütz

Crystal new year resolutions for 2017: 1.0

INSERT INTO shard VALUES ("crystal-db")

One db api to rule them all

A story of compromises and types

Fibonacci benchmark

Ruby vs. Crystal

Split the repo!

where the git...

Heroku Buildpack

Buenos Aires Crystal Meetup

First meetup in Argentina

The future of Crystal

A short story

Crystal tools

Tools for Atom and everybody

It's a typeof magic

It's magic!

Auto

A smarter compiler

Internals

Memory representation

Another language

What if...

Type inference rules

Part 2 of the type inference series

Garbage Collector

Enabled the Boehm GC

Good bye Ruby Thursday

Bootstraped the compiler

Type inference (part 1)

How type inference works

to_proc

Shortcut syntax for writing one-argument blocks

Happy birthday, Crystal!

Crystal is one year old

Null Pointer Exception

Crystal doesn't let you have a Null Pointer Exception

Hello World

The famous Hello World program written in different ways in Crystal