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The Crystal Programming Language
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Latest posts
Last updated about 1 month ago
Crystal 1.21.0 is released!
about 1 month ago
We are announcing a new Crystal release 1.21.0 with several new features...
Releasing Execution Contexts
about 1 month ago
Two and a half years ago, with the invaluable support from 84codes...
Crystal 1.20.3 is released!
about 2 months ago
We are announcing a new Crystal release 1.20.3 with fixes for two...
Crystal 1.20.3 is released!
10 months ago
We are announcing a new Crystal release 1.20.3 with fixes for two...
Post Mortem: HTTP Request Smuggling Vulnerability
3 months ago
On 12 April 2026, we received a vulnerability report regarding an HTTP...
Crystal 1.20.2 is released!
3 months ago
We are announcing a new Crystal release 1.20.2 with a couple of...
Crystal 1.20.1 is released!
4 months ago
We are announcing a new Crystal release 1.20.1 with a couple of...
Crystal 1.19.2 is released!
4 months ago
We are announcing a new Crystal release 1.19.2 with two regressions fixed...
Crystal 1.19.2 is released!
7 months ago
We are announcing a new Crystal release 1.19.2 with two regressions fixed...
Crystal 1.20.0 is released!
4 months ago
We are announcing a new Crystal release 1.20.0 with several new features...
Official Linux ARM64 builds
5 months ago
This has been a long awaited feature: how to run Crystal on...
Crystal talk at FOSDEM 2026
7 months ago
I’m giving a talk about Crystal at FOSDEM 2026 in Brussels Crystal:...