We’ve written a blog post summarizing the changes in this release: Crystal 1.0 - What to expect - The Crystal Programming Language
The full changelog is here: Release 1.0.0 · crystal-lang/crystal · GitHub
Note that this release will be available in the new apt and rpm repositories post, as well as GitHub release artifacts. We still need to decide yet-another new home for the apt and rpm repositories due to sunset of bintray
Docker images and 64 bits Linux packages are available as usual. But who knows, now that we are 1.0 we can apply to official docker images and have
$ docker run crystal. That would be so nice…
The brew formula PR is in crystal: 1.0.0 by bcardiff · Pull Request #73676 · Homebrew/homebrew-core · GitHub
LLVM 11 support is not complete yet due to #10359. For production release builds we recommend using LLVM <= 10 for now.