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db7d14f8a8
This is a major release with breaking changes to metadata format. BREAKING CHANGES: - All metadata keys now use 'dg-' namespace prefix (becomes 'x-amz-meta-dg-*' in S3) - Old metadata format is not supported - all files must be re-uploaded - Stats behavior changed: quick mode no longer shows misleading warnings Features: - Metadata now uses real package version (dg-tool: deltaglider/VERSION) - All metadata keys properly namespaced with 'dg-' prefix - Clean stats output in quick mode (no per-file warning spam) - Fixed nonsensical negative compression ratios in quick mode Fixes: - Stats now correctly handles delta files without metadata - Space saved shows 0 instead of negative numbers when metadata unavailable - Removed misleading warnings in quick mode (metadata not fetched is expected) - Fixed metadata keys to use hyphens instead of underscores Documentation: - Added comprehensive metadata documentation - Added stats calculation behavior guide - Added real version tracking documentation Tests: - Updated all tests to use new dg- prefixed metadata keys - All 73 unit tests passing - All quality checks passing (ruff, mypy) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>