Crystal 1.6.0 has been released!

We’ve written a blog post summarizing the changes in this patch release: Crystal 1.6.0 released! - The Crystal Programming Language . While we have tested it against several known and sizeable projects, that doesn’t preclude the existence of regressions. If you find an issue, please check the issue tracker and file a bug: it will be fixed in the following patch version.

The full changelog is here: Release 1.6.0 · crystal-lang/crystal · GitHub .

It is already available on the supported platforms, check the install page for details. That includes docker images :whale:, snapcraft, .deb and .rpm packages, and the brew formula :beer:.

Happy Crystallizing!


Great work team and contributors! Really appreciate all your work, we love Crystal :clap::clap::clap:


Recompiling some of my numerical intensive, multi-core code benchmarks,
I find 1) 1.6.0 is a few percentage faster than 1.5.1 and 2) the binaries are smaller.

I’ll be doing more extensive testing, but this small sample didn’t find any regressions either.