Crystal 1.22.0 Is Released

What happened

The Crystal team released version 1.22.0 on 12 October 2026. Crystal is a programming language. This release has 251 changes from 33 contributors. Pre-built packages are on GitHub and other official channels.

Key numbers and facts

• 251 changes since version 1.21.1
• 33 contributors helped build this release
• aarch64-linux targets moved up to Tier 1 (the top support level)
• Support added for LLVM 23 and 24 (LLVM is a toolkit that builds code for computers)

Main changes

Programs now exit right away when writing to the screen or error output fails with a pipe error. The old error message is gone. Constants can now have type labels, such as BAR : Int32 = 1. The code that reads debug info (DWARF parsing) was rebuilt to be faster and use less memory. The HTTP library also got many fixes and new features.

Simple terms

A pipe is a way for one program to send its output to another program. A pipe error happens when the other side stops listening. A constant is a value that does not change. A type declaration tells the computer what kind of value it holds, such as a whole number or text. DWARF is a format that stores debug information, which helps find where errors happen in code.

Why it matters

Crystal programs now behave in a clearer way when a pipe closes, and they can run faster when they show error traces. Developers on ARM-based Linux computers now get top-level support. Some changes are marked as breaking, so programmers who use removed features like Process.fork will need to update their code.