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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Added

  • Core Config[T] with type-safe generics and fluent builder pattern
  • Multi-source loading: YAML, JSON, TOML, INI, .env, environment variables, HTTP
  • Cloud loaders: AWS S3, SSM, Azure Blob, GCS, IBM COS, Git repositories
  • Secret management with ${secret:key} placeholder resolution
  • Cloud secret stores: AWS Secrets Manager, Azure Key Vault, GCP Secret Manager, HashiCorp Vault (9 auth methods)
  • 6 merge strategies (replace, merge, append, prepend, intersection, union) with per-path overrides
  • Hydra-style config composition via _include and _defaults directives
  • Environment resolution with automatic default + environment-specific merging
  • 4-type hook system (key, value, condition, global) for value transformation
  • Struct tag validation via go-playground/validator and JSON Schema validation
  • Full introspection: Explain(), Layers(), Schema(), source tracking, override history
  • Config diff, drift detection, versioning with rollback
  • File watching with incremental reload (mtime + SHA256)
  • Observability: access metrics, event emission
  • Documentation generation (markdown, JSON)
  • Export to JSON, YAML, TOML
  • Self-configuration via .confii.yaml auto-discovery
  • CLI tool with 10 commands: load, get, validate, export, diff, debug, explain, lint, docs, migrate
  • 19 runnable examples
  • GitHub Actions CI/CD: test matrix, CodeQL, govulncheck, OSSF Scorecard
  • 96%+ test coverage