This is an automated archive made by the Lemmit Bot.

The original was posted on /r/programminglanguages by /u/sdogruyol on 2026-04-17 15:06:14+00:00.

Crystal 1.20.0 is officially here

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 algorithm.

Significant performance leaps and architectural improvements are now live. Here are the 3 most impactful updates in this release:

• M:N Scheduling: A major shift in the scheduling architecture that drastically optimizes concurrency and resource handling.

• Multi-threading Refinement: Critical improvements to parallel execution efficiency and overall system stability.

• Broadened Platform Support: Official Linux ARM64 builds and enhanced Windows stability make Crystal production-ready across environments.

Time to update your shards!

Release Post: https://crystal-lang.org/2026/04/16/1.20.0-released/