Amber CLI 2.0.6

Amber CLI 2.0.6

Amber CLI 2.0.6 is the coordinated generator release for Amber
2.0.0-beta.5. Fresh web applications now use the framework's automatically
enforced schema contracts instead of constructing and validating a second
schema object inside each controller action.

Generate a complete web application

amber new pet_tracker --type web
cd pet_tracker
shards install
amber assets check
amber generate scaffold Pet name:string:required species:string:required adopted:bool
amber database migrate
crystal spec
amber watch

The generated project pins canonical Amber 2.0.0-beta.5, uses ECR, Grant,
SQLite, Micrate, local front-end assets, and a manifest-backed asset pipeline.

What changed

• Resource scaffolds bind PetSchema automatically to create and update
  and read typed request-local values with validated_as(PetSchema).
• HTML form schemas declare URL-encoded input and return the generated ECR form
  with visible field errors and HTTP 422 when a well-formed request is invalid.
• Malformed or unsupported form bodies preserve the framework's explicit 400
  or 415 status instead of being flattened into a generic validation error.
• Preview API generators bind the same executable schema contract for JSON
  writes while retaining structured JSON failures.
• amber generate schema teaches the executable controller declaration as the
  primary application path; direct construction remains available for isolated
  schema unit tests.
• The Unix and Windows generated-app smoke harnesses can test an exact framework
  repository and commit during coordinated development, while normal and
  release CI now exercise the published beta emitted by the template.

Upgrade compatibility

Amber's deprecated params.validation API remains functional. Existing Amber
applications can update the framework first, verify their current behavior,
and migrate validation one controller action at a time. CLI 2.0.6 changes new
generators; it does not force an existing application to regenerate its
controllers.

Release proof

• 412 Amber CLI examples pass.
• Apple Silicon macOS and x86_64 Linux release-style binaries generate, build,
  migrate, run, and exercise the complete web application.
• Linux ARM64 and Windows x86_64 compile and run the generated web application
  in GitHub Actions.
• The Pet Tracker smoke proves invalid HTML form input returns one HTML
  document with status 422 and a visible field error before proving persisted
  create and PATCH update behavior.
• Fingerprinted CSS, JavaScript, SVG, and favicon responses retain integrity,
  MIME, immutable caching, URL rewriting, and gzip checks.

Windows remains a source-build compatibility path; this release publishes CLI
archives for Apple Silicon macOS, x86_64 Linux, and ARM64 Linux.