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Crystal Language @CrystalLanguage

A language for humans and computers

Joined April 2015
  • Tweets 873
  • Following 140
  • Followers 5,973
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Crystal Language@CrystalLanguage
Apr 30
A new patch release Crystal 1.20.1 fixes some regressions and disables Kernel TLS (added in 1.20.0), due to instability. Read more at crystal-lang.org/2026/04/29/… #crystallang

Crystal 1.20.1 is released!

We are announcing a new Crystal release 1.20.1 with a couple of regressions fixed.

crystal-lang.org
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Crystal Language retweeted
Serdar Dogruyol セド
@sdogruyol
May 28
Huge Milestone: There are now over 10,000 Crystal projects 💎📷 @CrystalLanguage #crystallang
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Check out this interview with Carl Hörberg of 84codes, where he explains why they chose Crystal to build LavinMQ – a great example of Crystal in production. youtu.be/C8kq3KoP97k?si=WMKw… #crystallang @LavinMQ @84codes
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A new Crystal release is out for version 1.20.0 Highlights: `@[TargetFeature]` annotation, new process spawn API, support for kernel TLS and io_uring. The latter requires execution contexts which is now in the final preview. Read more at crystal-lang.org/2026/04/16/…
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We’re gathering for a Crystal #Meetup in #Stockholm! Beta Ziliani from the Core Team and Carl Hörberg from LavinMQ will share insights and experiences of using #crystallang. Food, drinks, and tech talks - Feb 18th at Guldbaren. crystal-lang.org/events/2025…
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Crystal Language retweeted
Johannes Müller@JoMueFD
14 Jan 2025
I'm giving a talk about #crystallang at #FOSDEM It's going to be an intro, but I'll try not to bore anyone who's already familiar with the language. Hope to see you there =) fosdem.org/2025/schedule/eve… PS. I'll bring some swag.

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Happy New Year, happy new release! 🎇 1.15.0 is out with a new, efficient event loop, support for MinGW-W64 and MSYS2, improvements for BSD platforms, and many more features. Watch out for the formatter changes, they'll likely affect your codebase! crystal-lang.org/2025/01/09/…

Crystal 1.15.0 is released!

We are announcing a new Crystal release 1.15.0 with several new features and bug fixes.

crystal-lang.org
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And we have a new release: Crystal 1.14.0 🚀 Read about the highlights in crystal-lang.org/2024/10/09/… Happy Crystalling! #CrystalLang #release

Crystal 1.14.0 is released!

We are announcing a new Crystal release with several new features and bug fixes.

crystal-lang.org
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Core Team member @ysbaddaden started toying with BLAKE3, trying to assess how much faster it was compared to SHA256 in Crystal… What started as a simple benchmark ended up in a discovery of a performance issue related to structs and its Ruby-based syntax. crystal-lang.org/2024/09/10/…
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We are thrilled to announce the release of Crystal 1.13.0 crystal-lang.org/2024/07/09/… You can now rescue module types! And there are a few improvements on parallelism. Happy Crystalling! #CrystalLang #release

Crystal 1.13.0 is released!

We are announcing a new Crystal release with several new features and bug fixes.

crystal-lang.org
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Do you know why @LavinMQ can handle so many connections and process that many messages? There are several reasons, but one of them is because developers can understand the library code the application runs. crystal-lang.org/2024/05/22/… #performance #crystallang #lavinmq #programming

LavinMQ: Understanding code to get the best performance

Building LavinMQ in Crystal was an active choice, as maintaining control over the codebase was a high priority. A decade of learning has prioritized fast updates and easy bug fixes. At the same time,...

crystal-lang.org
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Core Team member Johannes (@JoMueFd) will be presenting a talk about Crystal and its use for Rubyists at @helvetic_ruby 💎 Check it out at helvetic-ruby.ch/talks/#joha…
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We are thrilled to announce the release of Crystal 1.12.0 crystal-lang.org/2024/04/09/… It's a big release which brings progress on many fronts. Happy Crystalling! #CrystalLang #release

Crystal 1.12.0 is released!

We are announcing a new Crystal release with several new features and bug fixes.

crystal-lang.org
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We relaunched crystal-lang.org with an updated design and a ton of improvements. 🎉🥳 Hope you like it! Read the anouncement: crystal-lang.org/2024/03/27/… #CrystalLang #website #relaunch

Crystal

Crystal is a general-purpose, object-oriented programming language. With syntax inspired by Ruby, it’s a compiled language with static type-checking. Types are resolved by an advanced type inference...

crystal-lang.org
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We're reorganizing the sponsoring tiers in OpenCollective: crystal-lang.org/2024/03/25/… If you're a sponsor, read about the changes in the current tiers. If not, maybe consider contributing to help us make Crystal better? #CrystalLang
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Happy 3rd anniversary of Crystal 1.0! 🥳🎉 Now we're already approaching the 12th minor release 🚀 Did you know how to approximate any realease date since 1.0? carc.in/#/r/gllx So we're expecting Crystal 1.100 in April of 2046. Long way to go! 😆 #CrystalLang
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We're happy to announce that Julien Portalier (ysbaddaden) is rejoining the Crystal Core Team. He's working on Crystal at Manas.Tech with a focus on improving multi-threading. crystal-lang.org/2024/02/28/… #CrystalLang #Multithreading
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We're partnering with @84codes to improve Crystal's concurrency model for multi-threading. This is going to be a lengthy process, but it's already bearing some early fruits. #CrystalLang #Multithreading
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Crystal sits between dynamic languages like Ruby and compiled languages like C . Maybe it is a good language to bridge programming language communities... 🤔 Read what Bright has to say: forum.crystal-lang.org/t/cry… #programming #crystallang #rubylang #cpp

Crystal: the lingua franca at Bright

Bright Security is a developer-centric Dynamic Application Security Testing Solution, also known as a DAST. Founded in 2018, their mission is to help organizations ship secure Applications and APIs...

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Crystal is getting a more formalized mechanism for discussing language change proposals. This should help to line out which steps are needed and clarify where a proposal is standing. The first order of business is an RFC about the process itself: 🤓 github.com/crystal-lang/rfcs…

RFC 0001: Establish a formalized RFC process by beta-ziliani · Pull Request #1 · crystal-lang/rfcs

This PR has been merged. The RFC text is available at: https://github.com/crystal-lang/rfcs/blob/main/text/0001-RFCs proposal.md Preview: https://github.com/crystal-lang/rfcs/blob/feat/add-readm...

github.com
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