We’ve written a blog post summarizing the changes in this release: Crystal 1.1.0 released! - The Crystal Programming Language. We have tested it against several known, big projects, but that doesn’t preclude the existence of regressions. If you find an issue, check the issue tracker and file a bug: it will be fixed in the 1.1.1 version.
The full changelog is here: Release 1.1.0 · crystal-lang/crystal · GitHub .
Note that this release is available in the new apt and rpm repositories post, as well as GitHub release artifacts. You might need to update your package repositories.
Docker images and 64 bits Linux packages are available as usual.
The brew formula PR is merged already crystal 1.1.0 · Pull Request #81318 · Homebrew/homebrew-core · GitHub.