Amber 2.0.0-beta.2

Amber 2.0.0-beta.2 supersedes beta.1 for new Amber CLI web applications.
It keeps the same public beta surface and fixes application startup on Crystal
1.21's default multithreaded runtime.

Compatibility fix

• Replaced the server cluster launcher's Process.fork reference with portable
  process spawning.
• Release-gated on Apple Silicon macOS and x86_64 Linux with Crystal 1.21.
• Fresh ECR web apps are tested through dependency installation, specs, core
  generators, build, server launch, homepage delivery, and static CSS.

Install and create a web app

Install Amber CLI 2.0.2 or newer:

brew install amberframework/amber_cli/amber_cli
amber new my_app --type web
cd my_app
shards install
crystal spec
amber watch

The generated application pins amberframework/amber at 2.0.0-beta.2 and
uses ECR. Database drivers, persistence, auth, Grant, Gemma, Asset Pipeline,
and native application generation remain opt-in preview surfaces rather than
part of the core beta release gate.

See the beta installation guide
and V1 to V2 migration guide.

Please report framework issues at
https://github.com/amberframework/amber/issues and CLI/template/install issues
at https://github.com/amberframework/amber_cli/issues.