# Changelog

All notable changes to the CFSE specification.

Format: [Semantic Versioning](https://semver.org/)

This changelog starts at **1.0.0**, the first public release.

## [Unreleased]

### Added

### Changed

### Removed

## [1.0.0] - 2026-01-25

### Added
- First public release of the CFSE specification (core + schemas)
- Normative core spec (`spec/`) organized as foundations, grammar, artifacts, and semantics
- YAML schema definitions for CFSE artifacts
- Canonical Invariant Library YAML format (single-file packaging for `P-*` and `INV-*`)
- Conformance levels (minimal, standard, full)
- Normative language keywords per RFC 2119 + RFC 8174 (MUST/SHOULD/MAY in ALL CAPS)
- Entry Point (`EP-*`) and Projection (`PRJ-*`) supporting artifacts (optional exposure modeling)
- Optional extension mechanism (extensions may be published separately)
- Informative reading guides (`guides/`) and proposal process/templates (`rfcs/`)